Method of producing metallic copper from air suspension of copper pyrite particles and device to this end

FIELD: metallurgy.

SUBSTANCE: said air suspension and reducing agent are placed inside isolated vessel provided with perforated branch pipe located at vessel bottom to make air suspension and communicated with external pipeline for feeding compressed air at excess pressure of 0.1-0.6 kgf/cm². Raw stock 0.02-1.0 mm-dia particles filled some 20-40% of the volume of said vessel. Said reducing agent represents carbon-bearing compounds contained in compressed air fed to make suspension of particles inside said vessel. Said suspension and reducing agent are subjected to effects of variable rotary magnetic field with intensity in treatment zone of 1.5×10³÷1×10⁶ A/m and frequency of 40-70 Hz. Reduction brings about copper particles. Components for generation of aforesaid field are composed of interconnected plates made from permeable material and shaped to rectangle inside which three windings-coils are arranged. Every said coil is electrically connected with appropriate phase of external three-phase power supply. One of said components has through groove that allows fitting into said vessel of cover arranged atop said vessel to inhibit communication with surroundings.

EFFECT: lower costs, simplified design.

2 cl, 3 ex, 2 dwg

The invention relates to the field of non-ferrous metallurgy, and specifically to methods for primary copper from its ore, and is also used to implement this kind of process devices.

Known methods of metal extraction of copper from sulphide ore, the implementation of which the feedstock is processed in solutions of one or two of mineral acids (hydrochloric, sulfuric).

A solution containing salts of copper, switched from processed it the mass of the ore sent for follow-electrochemical treatment. Pasadena during its cathode copper is the final product used for its intended purpose to meet the needs of industrial production (see RF patent №2137856 from 20.12.1994, "the Way of extraction of copper from sulphide copper ore or concentrate").

However, this known method has the following disadvantages. The production of copper using multistage methods, including pre-generation solutions of its salts in acid solutions, greatly complicates and increases the cost of the process of obtaining metal. Expenses necessary to carry out the deposition of copper on the cathode electric energy also remain quite significant, which negatively affects the resulting feasibility p is the result of this process is the application of such known technologies.

Closest to the present invention is a method of obtaining copper, the implementation of which

restores the original ore material, solid carbon, and by submitting to a treatment zone containing this element of volatile gas connections.

To intensify the process of refining copper-containing raw material compounds on the last impact generated in course of their transformation in the desired end product of the magnetic field (see A.S. No. 220997 A1, C21B 13/00; 15/00, published 19.10.1971,, USSR - prototype).

However, when using this known technical solution of the prototype implementation costs of the process of obtaining metal remain unacceptably high.

Used for carrying out the process of melting of the source containing compounds of copper ore equipment has a high degree of complexity, and its application due to the necessity of involvement in the execution process enough material costs labor and financial resources.

The objective of the invention is to reduce the cost of obtaining metallic copper, as well as reducing the degree of structural complexity used when performing this method, of the device.

The achievement of these objectives is achieved through the use in the implementation of PR the process proposed treatment of the following factors:

- the proposed method involves the placement of the processed raw material and carbon-containing compounds in the inner cavity is isolated from the external environment capacity and recovery of the metal from the ore particles of source material. The latter is performed by exposure to commodity products generated in the device physical fields. At least one of them use magnetic. The process of converting raw materials into final products and flows directly to the area affected is generated in the processing zone set artificially generated fields there.

New in the execution of the proposed method is that as the object to perform such a conversion is an air suspension of particles of the processed material with a size of 0.02 to 1.0 mm, the Volume of such particles taken in relation to the entire volume of the cavity, which they fill, is 20-40% of the total value of the latter. As used to convert raw materials into a final product uses an alternating physical field of a rotating magnet. The tension of the last, measured in the treatment area, is 1.5×10³÷1×10⁶A/m, frequency 40-70 Hz. This field is formed by applying to power his generator periodically repeating what acetow sinusoidal electrical pulses, with the ratio of their amplitudes, average of$$\frac{A_{\max }}{A_{\min }}=6÷\mathrm{8,}$$where A_max- the maximum value of the amplitude sent to the generator that generates a magnetic field, waves included in one of the packages, A_minrespectively the minimum value for the wave packet sent after the previous one. Such wave packets with a maximum value of the amplitude alternating with the same, but having the minimum value. The ratio that determines the ratio of the number entering the generator of such pulses is a value from 3 to 5 for pulses with max And one min for A.

I.e. processing is performed at frequencies corresponding to the occurrence of both kinds of pulse packets within the range for waves with amplitude A max - 27-46 Hz; min and A - respectively 13-24 Hz.

And the container of processed raw material suspension in the exercise of its conversion into the final product performs in the applicable device integral role closing link connecting in a whole separate half-generating magnetic flux path that is included in this device is the main factor of the th node.

In addition, in the process of carrying out processing in thickness obtained on the tank bottom sludge is applying jets of compressed air at a pressure of 0,1÷0,6 kN/cm²creating in this field of so-called "fluidized bed".

Used for implementing the method, the device contains in its composition isolated from the environment capacity to contain particles of copper pyrites with a reducing agent. In the bottom area of the tank perforated pipe connected to an external feed compressed air line.

The device is equipped with and operating elements for generating a magnetic field in the cavity above the tank. Work items are made in the form of the coupled between a plate of conductive material.

These plates form in the process of mounting the circuit in the form of a closed rectangle. In the body of the same components such circuit components placed three winding coils. Each of these windings of the coils has an electric connection with the corresponding phase of the external three-phase power source.

In one of these constituent elements of the circuit is made through the groove. The dimensions of this groove provide for installation in a circuit containing an air suspension capacity. In addition, this capacity is mounted on the upper sweetice with open end cap, preventing the message of the internal cavity of the latter with the surrounding external environment.

In the bottom region of the vessel laid choked on the end part of the pipe, which is made in the walls of the perforation holes. The latter provide the output surrounding this pipe layers of processed raw materials jets supplied through them with compressed air. The inner cavity it communicates with the cavity of the external input volume of the compressed air line. When using the whole set of the above features of the proposed method and design used in its implementation of the device, the nature of the flow of processing in its implementation undergoes the following changes.

In the initial stages of its implementation preliminary preparation used to produce the metal raw mass. Last, before beginning this process, is subjected to the operation of the so-called "fine grinding". Such grinding the original material produced by any currently known technologies division, for example with the use of common ball mills. After such operation, the original lumpy material is transformed into fine particles having dimensions of from 0.02 to 1.00 and the m Grind the finished mass is then dried in the oven at a temperature of 120-150°C for 30-50 minutes.

At this stage of preliminary preparation of raw materials to its subsequent processing is complete.

Ready pulverized raw mass is then placed into the internal cavity of the tank 3, where it is, for example, with a mechanical stirrer, forming a homogeneous and stable air suspension. Tank 3 filled with this suspension of particles 4, and then is closed by a cover 8 and is installed in the through groove "B" of the magnetic flux generator.

Perforated pipe 6 is used to supply capacity 3 compressed air, after mounting the vessel 3 in the generator, is connected to feed its external line.

After carrying out the above passages, the whole winding-reel 2 used generator connected to appropriate (see figure 1) the phases of the external power source (not shown). Each of the three windings of the coil 2 when it arrives at her alternating electric current supplied from an external power source begins to generate its own magnetic field.

Since all of these winding-coil 2 mounted in the respective mounting boxes (not shown), directly in the volume of conductive work items 1, then the generated individual is haunted magnetic fluxes using the latest combined into a single total. Thus, a total magnetic field that is generated from these three separate components obtained in the areas of installation of each of the above windings of the coils 2. As supplied to the AC current in each of the phases of the external source has an angular shift relative to neighboring formed thus the total magnetic field is not only variable, but also as if engaged in the "rotation" of the surrounding spatial area.

You should pay attention to that generated in the oscillator circuit when it is turned on, the total magnetic flux will tend to close the broken groove "B" half of the generator, as if combining them into a coherent whole (creating a closed "loop"). In the process, he inevitably produces "leakage" through the internal cavity of the container 3 filled with particles 4 of the processed raw mass.

The latter performs during the implementation of this kind of transition from one half of the circuit in a different role connecting and closing link used to handle this magnetic system becomes a kind of "step", based on which the transition between work items 1 such generator and becomes feasible with a minimal loss of energy).

All of the above mA provides the maximum possible concentration of force lines generated by the magnetic field directly in the zone of the process of obtaining of the raw material particles 4 of the final product of their processing - metal granules 5.

Respectively, formed in the same area of the result vector of the total magnetic flux does there oscillatory movement, while the transfer zone of its influence on the surrounding particles of raw material in all three spatial coordinates (X, Y, Z). Moreover, during this last change not only the direction of the impact, but also its size (at a given frequency 40-70 Hz). If you connect curved line, point, position the end of the vector, omegaomega all areas surrounding spatial volume within a certain time period, you will get the shape, the shape is closest to a three-dimensional "ellipsoid" (see area D in figure 1).

Narrowing its front and rear ends is determined by the increase in the magnetic resistance inevitably occurs due to mounting clearances "and" at the time of installation of the tank 3 in the generator.

Since this resulting vector does all of the above steps directly in the completed processed by the environment the internal cavity of the vessel 3, there are particles of raw materials, as well as gas molecules are bombarded by a series of periodically recurring (40-70 Hz) "tremors" and "shock".

Under their influence will activate components of these molecules atoms electrons colorexpert to a higher orbit relative to their cores. This break previously available molecular covalent bonds, and in the treatment area appear ions of copper and carbon.

During the flow in the subsequent a number of interactions in the role of the reducing agent carbon "selects" copper compounds previously attached atoms partners, thus forming the new gas microvolumes.

The copper atoms, in contrast, produce stable under these new conditions crystal centers, settling under the action of gravitational forces on the bottom of the tank 3.

The process of obtaining the final product can be considered complete if, along with the formation of metallic copper in parallel not proceeded similar, providing the appearance of solid sulfur. Film of the last envelop just formed metal particles, preventing their growth.

To remove this "poisoner" when performing processing using the following processing method. Filing for generating the total magnetic field winding coils used in the processing of the generator are not only equal in magnitude sinusoidal pulses, and alternating with them in specified time periods of the pulse wave packets having smaller amplitude.

I.e. at the first stages of implementation of such processing on the alternator post is up sinusoidal pulse with the maximum amplitude (max A). The submission of this package is available until until the number of such pulses as part of this package will not be in the range equal to from 3 to 5 of their units.

After that supply this kind of "big" sine waves is stopped, and the winding-coil generator comes following their package that contains similar in appearance pulses, but with the amplitude, 6-8 times less than in the previous case (i.e. with the amplitude equal to min (A). The number of such sinusoidal wave pulses in this package is an amount equal to from 1 to 2.

Then after the end of the period of submission of the package with "small" pulses resumes execution of the process with the help of new entrants to the winding-reel 2 next, containing the pulse with the maximum amplitude (max A).

Such a process of alternation is repeated over and over again, until the completion of the entire process. (See schedule for creating a magnetic field elements 2 circuit sinusoidal pulse current I (A) depending on time, fixed relative to the beginning of processing t - see figure 2.)

Graph 2 clearly shows that the time period during which you are applying pulses with max A-T₁; significantly higher than during which receives pulses min A. I.e. the first more Thorogood three to five times.

The overall picture that illustrates the nature of the process the final product from the particles of the original air suspension, in the presence of such a batch of wave power on your magnetic generator, changing radically.

The periodic change in the value received for generating a magnetic field elements pulses inevitably leads to a kind of pulsation, which define the "bloating", "collapse" is created in volume 3 of the total magnetic flux. I.e. the shape created by connecting the dots finding all moving in the result vector "D" - see figure 1, will "bloat", respectively, "to lose weight". She is followed by corresponding changes accompanying the periodic change of the supply system of wave packets will vary and conditions carried out in the treatment area of the energy impact. The latter is performed in accordance with the principle of the "strong", it's "weak".

If in the conditions of intensive ongoing impact (pulses arrive with max And crystallize the metal and sulphur of the particles of raw materials processed in moments of its easing (the submission period pulses with min (A) is processing of solid sulfur-containing films in the gaseous volatile cont the points. In terms of the amended energy impacts of such compounds are the internal energy with the lowest possible value of all the most likely combinations of the resulting compounds.

Located under this film of sulfur particles of copper crystallized from raw materials, such change settings affecting a magnetic field has no defining their possible continued existence of the role, so that they remain as they are in the same condition. Formed from sulfur in such times, processing times new gaseous products pass first into the internal cavity of the tank, and then through the slit-like gaps between the lid and the walls of the latter, go into the surrounding atmosphere.

Freed from sulphuric film "pollutant" - particles of metallic copper to continue growing at the time of admission to the pulse generator power supply with a maximum amplitude. Their growth is similarly blocked over time the newly formed new coating of solid sulfur. The latter is again translated into sulfur-containing gaseous compounds with oxygen and hydrogen (SO₃; H₂S) at the time of periodical change of the corresponding wave packets.

And so one loop continuously replaced by another until the very end of its implementation, while the finding is recorded in the capacity of the raw mass is completely converted into these end products.

Crystallized under the influence of an alternating rotating magnetic field of the metal particles, falling down, burning down the road fine particles of raw mass, acquiring a kind of "fur". Getting to the bottom of the tank 3, they create there a kind of "bottom" sediment. Once in the thick of the last act of the jet supplied under pressure (0,1÷0,6 kN/cm²) compressed air, contained in the components under the action of the latter are performing intense vibrational movement. This creates the so-called "fluidized bed".

The above processes, due to the influence of an alternating rotating magnetic field on included in the "bottom layer" elements that occur in this area just as in the rest of the volume of the cavity capacity 3.

The difference of such processes will consist in the fact that in the conditions of the emergence of "fluidized bed" significantly increases the amount of feed in this area of atoms used reductant (derived from carbon-containing gases in the compressed air).

This greatly intensifies the process of separating copper from particles containing raw materials and provides escalation is received in the bottom sediment of its granules 5.

Other elements of the earth's crust that is included in the composition of the raw mass accumulated on the bottom, the image is there large pieces (30-50 mm). As the raw material being processed, used copper pyrite (chalcopyrite), and in the composition of the waste received at its completion, contains chemical compounds mainly of the following elements - Fe; S; Si; Al; Ca; C.

Obtained after processing the pieces of such waste have a sponge-like structure and dark gray color.

Due to the large difference in the dimensions of the particles of metallic copper (0.7 to 4.0 mm) and received lump waste (30-50 mm), they are easily separated using a standard calibrated sieves. The purity of the obtained copper is a percentage - 95,77-98,01%, which makes it suitable for use as the initial draft materials for subsequent refining.

The processing itself is performed at room temperatures and at pressures only slightly different from atmospheric.

Output suitable for further refining of metallic copper from concentrate used chalcopyrite (copper pyrites) ranges from 16% to 34%, depending on its initial concentration in the raw material. The resultant spongy slag is in the range from 29% to 41% by weight of the ore material. The rest are generated gas products passing to the atmosphere or intended for disposal treatment system.

In the process of magni the air traffic management" in the filling tank 3 air suspension the following reactions occur:

CuFeS₂→Cu⁺+Fe⁺+2S⁺;

CO₂→C⁺+2O⁺;

Cu⁺+O⁺=CuO, Cu⁺+2O⁺=CuO₂;

CuO+C⁺=Cu⁰+CO;

CH4→C⁺+4H⁺;

S⁺+2H⁺=H₂S;

S⁺+2O⁺=SO₂;

S⁺+3O⁺=SO₃;

CuO₂+C⁺=Cu⁰+CO₂.

At the end of their course and are formed crystals of metallic copper and also containing sulfur and carbon new gaseous products.

Necessary to convert the used raw material packs wave sinusoidal pulses fed to the applied generator, formed with the aid of electronic unit - modulator that comprises an external power source (not shown). Its use and splits are used to generate an alternating magnetic field frequency range into two parts.

One part, for "large" pulses with max And, respectively 27-46 Hz, and the second - for the children - with A min 13-24 Hz. The summation of both range and will be the frequency of use of the total alternating magnetic field, equal 40-70 Hz. The need to perform such of its breakdown specified in the previous links in the description.

Additionally, the external power supply contains the electronic control b is OK (not shown), which may be necessary adjustment of the processing modes (tension applied magnetic field). This is ensured by the implementation of adjustments to the parameters supplied to the power windings of the coils 2 alternating electric current (amperage, voltage, frequency).

Further, the implementation of the proposed method is illustrated using the following examples.

Example 1. To produce copper concentrate was used copper pyrite (chalcopyrite), containing compounds of copper, calculated on the metal components of 35%.

Raw mass was subjected to grinding in a ball mill to obtain particles of ore with size of 0.02-1.00 mm; then prepare to process the ore is passed through drying at 150°C for 30 min in the oven.

The finished particles of the raw material was filled in the cavity of the vessel with a volume of 5 l Volume is poured into the container 3 particles was 20% relative to its own internal.

Then stirring was carried out of the settled sediment used raw pulverized mass with a mechanical stirrer until a homogeneous opaque sustainable mist filling evenly all the internal cavity of used capacity.

After that, the container 3 is closed by a cover 8 and held her Montt is W in the installation groove "B" of the magnetic field generator (see figure 1).

After completion of the installation capacity of the generator were connected perforated pipe 6 to an external feed compressed air line.

Simultaneously with the supply of compressed air at a pressure of 0.1 kgf/cm²you have made connection of all three windings of the coils 2 in the magnetic field generator to an external source of electric power.

Measured using a Hall sensor and the measuring bridge tensions have arisen in the treatment area of the magnetic field was 1×10⁶A/m total its frequency corresponded to 70 Hz.

Own same frequency in forming its total generated two wave packets with max A and min A - were respectively 46 Hz and 24 Hz. The ratio of the amplitudes of the components of the packages sine waves defined at the points of their extremes, for the previous and following after him, that is,$$\frac{\max A}{\min A},$$was equal to 8 (see figure 2).

Their actions were the intervals depicted in figure 2 segments T1 and T2, with T1>T2 more than four times.

After one minute after switching on the magnetic generator in the work of filling the internal cavity of the suspended purchased transparency, and on the bottom of the tank there were two views of the granules. Smaller, red, consisted of metallic copper and had dimensions of 2 to 4 mm.

Large pieces of spongy structure in dark gray was an education consisting of compounds of Fe; S; Si; Al; Ca with dimensions ranging from 30 to 40 mm

The purity of the obtained granules was 98,01%. The last number was 34% by weight of the used raw material. The amount of waste was 26.8% relative to the mass of ore used.

The rest used during processing of the raw material was obtained gaseous products, gone into the atmosphere.

Example 2. According to the same scheme, as specified in example 1 was carried out processing of raw concentrate copper pyrite (chalcopyrite), containing compounds of copper, calculated on the metal, in the amount of 17.2%. The drying time obtained by grinding the particles was 50 minutes at a temperature of 120°C. the compressed air in the bottom part of the vessel was carried out under a pressure of 0.6 kgf/cm². The magnetic field strength measured in the treatment area, was 1.5×10³A/m, the total frequency corresponds to 40 Hz (consisted of frequencies used to power the windings of the generator coils of the two types of wave packets with max And equal to 33 Hz, and min And equal to 7 Hz).

The ratio of the amplitudes of the pulses in these wave is Akedah was the value of $$\frac{A\max }{A\min }$$equal to six.

The ratio of the length of the periods of their impact T1 and T2 was equal to 4.7.

The duration of the process until a point in time after which fills the cavity of the vessel 3 air suspension became completely transparent, amounted to 4 minutes.

The amount allocated from the raw mass is subjected to processing, metal was equal to 16.5%; the metal content in the obtained granules with dimensions of 0.7-1.8 mm matches the value 95,77%.

The number of received waste lumpy dark gray dimensions 30÷50 mm, containing in its composition of Fe; S; Si; Al; Ca; C, was equal to 42.6 per cent.

The rest of the final products of processing was obtained gaseous compounds trapped in the atmosphere.

Example 3. In accordance with the scheme of the process given in examples 1, 2, were processed raw concentrate of copper pyrite (chalcopyrite). The copper content in the past, in terms of metal, was 25.6 percent. The drying time is obtained by grinding the raw material particles of 0.02 to 1.00 mm corresponded to 45 minutes at a temperature of 135°C.

The compressed air in the cavity of the vessel 3 was carried out under from utochnim pressure of 0.35 kg/cm ².

The magnetic field strength at the time of the implementation process was 8,4×10⁴A/m total its frequency corresponded to 50 Hz (consisted of frequencies used to power the windings of the generator coils of the two types of wave packets with max And equal to 40 Hz, and A min respectively at 10 Hz).

The ratio of the amplitudes of the pulses in such wave packets was the value of$$\frac{A\max }{A\min }$$equal to seven.

The ratio of the length of the periods of their impact on the processed raw materials T1 and T2, respectively, was equal to four.

The duration of the process was 2.8 minutes.

The number obtained after metal was 24.8%. Metal content in obtained by treating the granules with sizes ranging from 1.1 to 2.5 mm corresponded to 96.9%. The number of received waste lumpy gray colors with sizes ranging from 30 to 50 mm was 34.8%. Waste contained in the composition of Fe; S; Si; Al; Ca; C.

In all the above examples, the separation of the granules of metal formed during the same processing of bulk waste was carried out using a sieve with calibrated holes.

When carrying out the production of metallic granules from the original ore si the article in all the above cases there was a slight heating of the near-bottom sediment layer to temperatures of 40-50°C, due to the advent of his layers formed above new features, in connection with the release from the sediment, with the flow of the respective exothermic reactions.

The choice of values used during the processing parameters of physical fields, as well as characteristics of the raw material is carried out based on the following considerations.

The particle sizes of the raw materials of 0.02-1.0 mm and limits the filling of the cavity capacity 3 - 20-40% of its volume that is assigned based on the need to build their sustainable use dust air suspension, not stratifying into separate components needed to complete the interval.

The limits of the magnetic field due to the presence of the following considerations.

When applying the values of magnetic field strength smaller than 1.5×10³A/m, it is not possible to ensure the selection of the metal from its compounds containing particles of ore.

Using the values of the field strength greater than 1×10⁶A/m, does not gain any additional benefits during processing.

But at the same time increases the necessary costs of technological energy.

The range used during the execution of the method of the frequencies of the generated magnetic is Olya selected on the following basis. At frequencies less than 40 Hz, there is provided a selection of crystals of metal containing raw material particles due to a lack of high intensity impact on the latter obtained in the treatment area total resultant vector of the magnetic flux. I.e. the vector of the surrounding cloud of the latter moves too "sluggish".

On the contrary, when the values of frequencies of more than 70 Hz, the vector is moving so rapidly that getting in the way of its moving particles do not have time to join with him in the interaction. And in this case does not guarantee the creation of optimal conditions of the process of separation of the metal.

The ratio of amplitudes used to power the generator sine wave packets of pulses constituting$$\frac{\max A}{\min A}=6÷\mathrm{8,}$$appointed on the assumption that this ratio is optimal for removing periodically appear on the crystals of the metal film of solid sulfur.

When the values of this ratio smaller than 6, you cannot create the conditions for transformation of this element in the volatile gaseous products.

When a value greater than 8, will be intensively expanding growth inhibition originating the earlier crystals of copper, that also will adversely affect the technical and economic performance of the entire ongoing process.

The ratio of wave pulses contained in the sent to the generator packages of 3÷5 units with A max on the same wavelength with A min is determined based on compliance with the conditions of the optimum value of the time interval during which the removal of the film of sulfur emitted from the surface of the particles of the raw material crystal metal. When the proportions greater than 5 to 1, this gap is so small that the specified process is not possible. When the ratios of quantities of the applied pulses in sent packets greater than 3:1, reduced periods of time, during which mainly flows through the growth of the emerging metal granules, which affects the performance of this process.

Frequency of submission of such packages on the generator value is primarily determined by conditions in the presence of the above ratio, and considering it is for waves with a value of A max - 27-46 Hz; for pulses with A min - 13-24 Hz, respectively. The total value of the frequencies and the other corresponds to 40-70 Hz.

Fixation amplitude values with max and min value of the pulses is carried out at the point of occurrence of the extrema on the components of the pulse wave its halves (the m the graph of the function, figure 2).

Assigning a time interval to be processed in 1-4 minutes is based on the following.

While values smaller than 1 min, do not have time to occur necessary to obtain the metal conversion particles used for raw material processing.

When using values of time intervals greater than 4 min, does not provide any additional benefits. At the same time, using larger than necessary, time periods leads to the increase of the total costs associated with execution of the process.

On the submitted drawings shows:

General view of the proposed device 1;

the graph of the function that defines the order of formation is used to supply power to the windings of the generator pulse wave packets I(A)=f(t) - 2.

Figure 1 is indicated:

Position 1 - the working elements of conductive material, of which is mounted the circuit of the generator.

Position 2 - winding coils that are installed directly in the body of work items 1 and designed to generate a magnetic flux.

Position 3 - the capacity for placement in the cavity of the air-suspension of particles 4 of the processed raw materials.

Position 4 - the ore particles, uniformly distributed in the surrounding atmosphere, polnaya internal volume of the vessel 3.

Position 5 - granules obtained the metal collected in the bottom layer of the used capacity 3.

Position 6 - perforated pipe carrying compressed air under pressure into the thickness of the sediment lying at the bottom.

Position 7 - through the perforation holes, through which is the exit of the air jets.

Position 8 - cover, lying on the vessel wall 3 at its upper open part, isolating its internal volume from a direct connection with the environmental capacity of the air environment.

The letter "B" end-to-end groove, intended for installed capacity in the magnetic field generator.

Letters "a" obtained in the course of mounting of the body of the vessel 3 in the installation groove "B" air gaps.

The letter "D" is generated by the movement of the result vector of the magnetic flux of the spatial figure, placed in the inner cavity of the container 3.

The letter R is the direction of flow and the pressure in the streams fed to the bottom draught of compressed air.

Figure 2 indicated:

The letter A max is the amplitude of the sinusoidal pulse included in the package supplied to power the windings of the generator and measured at the point of extremum [Max function J(A)=f(t) - pulse of the long-term package].

The letter A min - the amplitude of the sinusoidal pulse included in the send su the units for the previous "long" already "short" package also arriving at its winding-coil 2, the value of which is recorded also in the area of "small" extremum [min function J(A)=f(t)].

The T₁- the period of long service sinusoidal pulses, the amplitude of which at the points of extrema is defined as A_max.

The T₂- the period corresponding to the time of formation of the "short" wave packet of pulses, the amplitude of which is in the zone of occurrence of extreme designated as A_min.

The letter J(A) is the y-axis, on which are fixed instantaneous amplitudes at having the form of a sine wave and are part of a package of pulses of the power windings of the coils of the generator.

The letter t on the horizontal axis, which determines the time periods during which the flow changes in the above parameters sent wave packets.

The operation of the device depicted in figure 1, proceeds as follows.

Before turning on the magnetic generator the internal cavity of the vessel 3 is filled with the treated suspension. Suspension contains particles 4 copper pyrites, distributed evenly in the surrounding on all sides of the column of atmospheric air.

Tank 3 containing raw material particles 4 is closed isolating the inside of from the environment by a cover 8.

The latter is laid on its side, placed the top of the tank, at its open end. Upon completion of this phase, the tank 3 is installed in the through groove "B" of the magnetic circuit of the generator (see figure 1).

After mounting the cavity is placed in its bottom perforated pipe 6 is connected with the cavity of the feeding compressed air external line, for example, using a flexible hose and quick coupling (not shown).

When this begins to occur filing under overpressure in tank capacity 3 jets of compressed air, in passing through the perforation holes 7 made in the walls of the pipe 6.

Simultaneously connect all three windings of the coils 2 to the corresponding phases of the external source of supply of alternating electric current.

When entering his winding-reel 2 role of solenoids, each of them begins to generate an alternating magnetic field.

Since all such solenoids are connected forming a single conductive path work items 1, further it is formed by merging these individual fields already a single total.

Due to the fact that an electric current to the winding of the coil 2 is supplied with alternating, what you get in the generator magnetic field will be the same. Thanks to the angular shifts primenyaemyh as feeding wave sinusoidal pulses phases of this external power source, to obtain the total field still seems to be "rotated" in the implementation of its impact. This "rotation" and is provided by the applicants on each of the three windings of the coils 2 of the power supplied from the individual phases of the external servicing network (industrial three-phase current).

As a closed rectangular contour generator torn made it through the groove "B", formed in its work items 1 total magnetic flux, resulting from the connection of the latter to the power source, tends to close both received half of the circuit in a single unit.

For this purpose in the circuit is the total magnetic flux must "jump" through the region of space occupied by the through groove "B". On passing through the area of performing such a "jump", the flow inevitably passes through the inner cavity placed there the vessel 3. The last in this case plays the role of "the basic steps"that help to overcome both halves of the circuit empty space for passing through this area of the above thread. I.e. the container 3 is placed inside a suspension of particles 4 performs the role of closing a link for generating an alternating magnetic field created for this purpose in the system.

In the end, all of this directly in lying on the path that the CSO flow region, occupied by the volume of sediment generated magnetic field with the maximum achievable for these conditions the parameters of his tension.

Accordingly, the impact on the particles 4 of the raw material, the latter will be carried out with the greatest possible intensity, which provides optimal conditions for the exercise of their conversion to the required final product.

Created in the transition zone of the magnetic flux area, designated by the letter "D" (see figure 1), formed through the connection using the curves from the endpoint of finding the resultant vector of the magnetic flux at the time of implementation of its angular oscillatory movement in all three spatial coordinates. Received by the merger of such individual curves area "D" is ultimately the spatial ellipsoid within which, in fact, is the kind of move most of this vector.

This ellipsoid "D" is entirely in the volume of the internal cavity of the tank 3, and all there raw material particles 4 and fill her gas layers are placed directly in the zone of influence of the latter. The impact of the new result vector is periodically carried out by changing its direction (hour the PTA 40-70 Hz), and also its size.

Splashiest obtained in the treatment area of the ellipsoid in the front and rear parts is determined by the sharp increase in the total magnetic resistance in the center of the mounting holes.

Thus, containing compounds of the metal particles at the time of processing pass through a series of "bumps" and "tremors"created using generated in the implemented system the powerful energy of the impact. However, they are applied with a high degree of intensity, from different angles and directions.

Under the influence of all this, the electrons of the atoms included in the composition subjected to such treatment compounds are transferred from the underlying orbits that are more remote. Previously created covalent bonds in molecules are broken, and they are divided into separate ions manifesting due to continuing exposure to high energy chemical activity.

The copper atoms in the course of this process turn into crystals, and part forming raw material compounds sulfur is partially converted into gas, and containing this element of the solid particles. The latter are deposited on the surface of the formed crystals of copper, forming preventing their further expansion of the "poison"film.

As obtained from suspended particles vnov formed components have a higher density, then under the action of gravitational forces, they are deposited on the bottom of the tank 3.

Periodical removal of obtained crystals of copper film consisting of sulfur, as follows.

After service sinusoidal pulses, consisting of 4-5 waves having amplitude, denoted by A max (see figure 2), to power the windings of the coil 2 must be accompanied with at least one pulse with a minimum value of A min. The ratio of$$\frac{A\max }{A\min }$$is a value from 6 to 8. During his feeding after a period, denoted as T₁(see figure 2), vary the terms of the energy balance to be created in the field of treatment of new molecular compounds. In the upcoming fall short magnetic field has the lowest internal energy will have gaseous particles of sulfur compounds, and its not hard crystals. This allows for the time period displayed in the graph of the function J(A)=f(t) - see figure 2, as the period T₂, transfer from film in gaseous form (SO₂; SO₃; H₂S)that appear in the surrounding 3TB atmosphere.

Released by removing the sulfur film surface of the copper crystals becomes VN is V available for deposition on it coming to her metal atoms, and continue its further growth.

The alternation of long - period of T₁and short - period of T₂sent to power the generator of the wave packet is repeated periodically until full completion of the process.

Caught in the bottom region of the vessel 3 small crystals of metal acquire captured from the surrounding layers suspended its constituent particles 4 and form in the vessel itself, the thickness planted on her bottom sediment. Through the layers of the past and pass a jet of compressed air supplied through the holes 7 of the pipe 6.

Because the supply of them is under a slight excess pressure in the zone of influence of the components of this bottom sediment components begin to make oscillatory movements, rising up, again falling down. I.e. at the bottom of the tank 3 is formed of the so-called "fluidized bed".

Since all of the above processes in the components of the "boiling layer" connections continue to occur all in the same order, then wash them from all sides produced from carbon-containing gases, the reducing agent is carbon C⁺has an intense impact on all involved elements. From the "fluidized bed" is rapidly excreted newly created in its thicker gaseous products (CO; CO₂; SO₂; SO_{3 ; H2S), and small crystals of copper grow with the formation of large granules 5.}

Polluting same ore other related copper elements into large pieces "slag" (not shown in figure 1).

The process using the proposed device (see figure 1) continues until until placed into the internal cavity of the vessel 3 a suspension will not be fully transparent, i.e. all members of the raw materials used, the particles will not be processed into the final products.

Capture the waste if necessary, during the processing of the gaseous products can be carried out using the widely known industrial methods of disposal of the latter. At the end of the process (i.e. within 1-4 minutes) winding-coil 2 are disconnected from the power source, and the pipe 6 is disconnected from the external flow.

The container 3 with the finished end product is extracted from the installation groove "B" of the generator. With it removed the insulating cover 8, and the final products are poured on the calibration sieve, through which the separated granules of metal from the surrounding bulk waste.

In addition to the isolation of the inner cavity of the container 3 from the external environment used in the device of the insulating cover 8 plays as a filter, ensuring the output of which is, rotating in the cavity latest new gas products, as well as excessive amounts of supplied there compressed air. The role of lateral grooved channels in this case are performing emerging at the time of installation on the vessel wall slit-like gaps, the size of which ranges from 0.005 to 0.01 mm (not shown). I.e. the amount of the latter is large enough to hold the release of the corresponding gas volumes, but does not allow you to take out small particles loaded in the capacity of raw material (dimensions last more dimensions such channels are of 0.02-1.0 mm). This function can, if necessary, implement and filter with wavy stuffing.

In this variant of embodiment, the filter must be passed through one of the walls, and the inner part of his open both ends of the housing must fill fiber material gaskets, and the gaps between them and must be in the range (0.005-0.01 mm). Cover 8 must have in this case, the seal provides an airtight seal tank volume 3 from the environment at the time of its closure (not shown).

In the proposed case applied the simplest of the options for its design.

After completing all the above transitions are exempt from the final products, the device again becomes eligible for continuation is the Tcl subsequent processing.

Used to power an external source of electrical power comprises two additional block (not shown).

Using one control unit, one adjusts the parameters supplied to the winding coils of the alternator (current; voltage; frequency) and, therefore, process parameters generated in the receiving area of the metal magnetic fields (not shown).

By means of the second unit of the modulation is provided by forming successive and recurrent pulse wave packets, "long" and "short", in each of which the amplitude of the applied there pulses has significant differences (in the drawing this block is not shown). The use of external power source indicated above electronic components and ensures the implementation of the proposed method to obtain metal in accordance with the previous instructions peculiarities of its implementation.

Given all the above, we can conclude that the application of the proposed method and intended to exercise the device allows to reduce the consumption of energy required for production of finished metal containing copper pyrites raw concentrates, compared to known industrial is a diversified methods of processing (such for example, as mine melted. Using the proposed method and device for its implementation provides the conditions for the separation of the metal from its compounds at room temperature and pressure range, slightly different from atmospheric.

Obtained by carrying out processing with it, the blister copper is sufficiently high purity, which creates optimal conditions for its further processing or refining.

The degree of extraction of metal from the concentrate, containing compounds of the latter, also has a fairly high value reaches 95% of theoretically possible. The manufacturer applied the device is not connected with the need to attract notable capital expenditure and requires no long-time period production preparation.

The proposed device is simple design and therefore has a high operational reliability.

In the process of implementing processing in accordance with the proposed method does not use radiation or materials, the use of which is associated with damage to the surrounding existing natural production environment or to the health service of its personnel.

1. Method for producing metallic copper from the hcpa who's suspended particles of copper pyrites, involving her and reductant in the inner cavity isolated from the environment capacity, the impact on the suspension and reducing the generated magnetic field and the restoration of obtaining particles of copper, characterized in that use raw particles of copper pyrites with a size of 0.02 to 1.0 mm, which is placed in the vessel in the amount of 20-40% of its volume as reducing use of carbon-containing compounds contained in the compressed air supplied to create a suspension of the particles in the vessel, the influence exercised by varying a rotating magnetic field intensity in the treatment area of 1.5·10³÷1·10⁶A/m, frequency 40-70 Hz, generated by applying the generator periodically repeating set of packages sinusoidal electrical pulses having a ratio of amplitudes of$$\frac{A\max }{A\min }=6÷8$$where Amax is the maximum amplitude value sent to the generator and forming a magnetic field pulses included in one of the packages, a Amin, respectively, the minimum value for the amplitude of the pulses of the packet sent after the previous, with 3 to 5 packets of pulses with a maximum value of the amplitude alternating with one pack is om pulses with a minimum value of amplitude, when the frequency corresponding to the appearance of the mentioned packages pulses in the range for waves with Amax equal 27-46 Hz, and Amin - 13-24 Hz, while the capacity of the treated suspension is closing a connecting link, and a jet of compressed air to obtain a suspension of particles is served in the bottom of the tank at a pressure equal to 0,1÷0,6 kN/cm²to create a fluidized bed.

2. Device for the production of metallic copper from an air suspension of particles of copper pyrites, containing isolated from the environment capacity to contain particles of copper pyrites with a reducing agent, characterized in that in the bottom region of said tank perforated pipe for forming an air suspension connected with an external line for compressed air work items to generate the AC rotating magnetic field in the cavity of the vessel, made in the form of stacked between the plates of conductive material, forming a path in the form of a closed rectangle, the body of which there are three winding coils, each of which has an electric connection with the corresponding phase of the external three-phase power source, and in one of these constituent elements is a through groove, the dimensions of which provide installation in the path mentioned container of the STI for having mounted on its upper end with its open end cap, preventing the message of the volume of the internal cavity with the environment.