Method borehole cil from deep lying placers and man-made mineral formations. RU patent 2504648.
 Geotechnological processing method of non-conditioned sulphide ore material containing non-ferrous metals and iron / 2502869Geotechnological processing method of non-conditioned sulphide ore material involves formation on the first antifiltration base of the first drain layer and leachable layer arranged on it and containing non-conditioned sulphide ore material and pyrrhotine; formation on the second antifiltration base located outside the first antifiltration base of the second drain layer and a concentrating layer arranged on it; activation of leachable layer from its inlet by intermittent sprinkling with a water or sulphuric acid leaching solution with transfer of metals contained in it to the solution supplied to the first drain layer; cyclic moistening of the concentrating layer with a metal-containing solution; deposition of nickel and cobalt in the concentrating layer so that technogenic ore is formed, and removal of waste solution from the concentrating layer through the second drain layer to discharge or inlet of the leachable layer. In addition, a copper extraction section and an iron deposition section, which are series connected, are formed. The first drain layer is connected to copper extraction section inlet and to leachable layer inlet, and outlet of iron deposition section is connected to the concentrating layer and inlet of the leachable layer. Metal-containing solution with pH 1.8-2.2 is used and first supplied to copper extraction section, and copper is extracted from it on metallic iron by cementation; then, copper-free metal-containing solution is supplied to the iron deposition section, where the solution is passed through thermally activated carbonatite with particle size of 0.1-0.2 mm at the ratio of carbonatite to solution of 0.5-0.7 g/l; after that, the solution is supplied to the concentrating layer for nickel and cobalt deposition. |
| Method to extract dispersed gold from refractory ores / 2497962 Method includes drilling of blast holes in an ore deposit, analysis of drilling sludge, delineation according to results of this analysis of zones, charging of wells by formation of explosive charges in them with differentiated specific consumption of explosives along dedicated zones. Then charges are exploded with ore disintegration and formation of cracks in the ore, leaching of gold from exploded ore by means of irrigation with leaching solutions of reagents and discharge of product solutions. At the same time the wells in zones with finely disseminated ore minerals and dispersed forms of gold location along a compacted network. Besides, in the central part of zones, when explosive charges are formed in them, they arranged containers that are coaxially built into each other with concentrated solutions of two types of reagents that form during mixing with explosive gases a highly active reaction mixture for oxidation of ore matrices that include dispersed gold. Explosion of the specified charges is carried out with moderation relative to explosive charges placed in wells that are drilled in zones with a vein nature of mineralisation and row shot, for formation of the highly active reaction mixture, which is injected into cracks by gases that are produced during explosion of explosive charges. |
 Method to prepare ore bodies in place of bedding to leaching of useful components / 2495238Method to prepare ore bodies to leaching of useful components in place of bedding includes installation of charges into well rings (11) in the central part of the ore body, explosion of the specified well rings and subsequent injection of a process solution into the central part of the ore body via perforation channels with the branching cracks along periphery of channels, formed by the upper part of the ore body with directed blasting Charges are installed with formation of a water circular gap between an explosive charge, bottom and walls of the well, after formation of a circular gap the well is filled with water or plugged. |
 Flow line for year-round heap leaching of metals from ores / 2493364Flow line for year-round heap leaching of metals from ores includes the following serially installed components one after another: ore pile, a drainage system, a reinforced concrete pan, a pan board, a pump, a pipeline, a device for solution heating, a sprinkling system covered with a heat-shielding material, a device for collection of saturated solutions, a pump with a discharge pipeline, a complex of devices for collection and processing of saturated solutions. The line is additionally equipped with a heat and gas generator of a steam and air mixture, a system of vertical and inclined perforated pipes, installed in the pile and equipped with temperature measurement sensors, connected with a flexible link to a device of process monitoring and control. The heat and gas generator inlet is connected to the device of process monitoring and control, and the outlet is connected with nozzles fixed on top of perforated pipes. The device for collection of saturated solutions is arranged in the form of a sieve and two serially installed modules one after the other, the first of which at the inlet is connected to the sieve, and the second one equipped with heating elements for solution heating, at the outlet it is connected with the pump and the discharge pipeline, connected to the complex of devices for collection and processing of saturated solutions, at the same time the complex is installed in a heated room. |
 Flow line for year-round heap leaching of noble metals in cryolithic zone / 2493363Flow line for year-round heap leaching of noble metals in a cryolithic zone comprises a reinforced concrete pan with a board, ore pile filled on top of it, a drainage system installed underneath and connected with a complex of devices for operation in summer time, comprising a buffer reservoir serially connected with a device for noble metals deposition with self-flow pipelines, and the devices are arranged below the border of the seasonal freezing-thawing of soils, and also an auxiliary pump, a receiving reservoir, which communicates with a device for additional strengthening of the solution and the main pump connected by a discharge pipeline with a sprinkling system deepened into the near-surface layer of the ore pile, and also a complex of devices for operation in winter time, comprising the following components connected in series with additional self-flow pipelines and arranged below the border of seasonal freezing-thawing of soils: an additional buffer reservoir, the specified device for deposition of noble metals, an additional receiving reservoir, which communicates with the specified device for additional strengthening of solutions and an additional pump connected with an additional discharge pipeline via a device for solution heating with a sprinkling system. The specified device for deposition of noble metals is communicated with emergency pipelines to an emergency reservoir, an additional buffer reservoir and an additional receiving reservoir. The line is equipped with a heat-insulating screen and a heat-insulating jacket, with which the drainage system and the specified process equipment are separated from permafrost rocks of the cryolithic zone. Besides, the device for solution heating has a closed heat supply system, which connects in series a water jacket of a solid fuel gasifier and a water boiler of a heat generator, besides, the gas burners of the latter are connected by a gas flue with a gasifier, at the same time the drain nozzle of heat generator spent gas is connected with a gas duct via a distribution valve with a sprinkling system, comprising a gas duct in the heat-insulating coating of the sprinkling system at its far end. |
 Method to produce rare metals using technology of drillhole in situ leaching and device for its realisation / 2478780Invention includes injection of working agent solutions into a payout bed via a system of injection wells and pumping of products of reaction of rare metals with a working agent solution with the help of a submersible pump via a system of production wells, exposure of well bore and crosshole space to the field of elastic oscillations with the help of sources of elastic oscillations. At the same time operation of the production well is stopped for 3-4 hours, the submersible pump is withdrawn, and a well source of elastic oscillations is lowered into the well on a single-strand geophysical cable. The source of elastic oscillations is a well radiator of plasma-impulse effect, creating impulses of elastic field with a spectrum of frequencies in the range from several Hertz to several kiloHertz and energy of elastic impulses in the range of 1.0-5-1.2 kJ, with series of 10÷30 pulses with frequency of 2÷3 pulses per minute, power supply is provided via a single-strand cable from a surface source of current with frequency of 300-1,000 Hz. In process of wells treatment the radiator is moved with a pitch of 0.5÷1.0 m in the entire interval of the well filter, and after its withdrawal from the well the pump is lowered, and the well operation is resumed. |
| Extraction method of metals from metal-containing mineral raw material / 2476610 Method involves crushing of raw material, its heaping in the form of a pile, pre-treatment of raw material in the pile, treatment of the pile with a leaching solution, dilution of metals and obtaining of productive solution with removal of metals from it. At that, pre-treatment is performed by supplying separate solutions or mixture of solutions containing surface active substance and hypochlorite to the pile. Treatment with the leaching solution is performed by means of the solution obtained by mixing in the pile volume at supply to it of separate solutions or mixture of solutions containing hypochlorite, surface-active substance and/or mineral acid. In the leaching solution there used are mixtures of mineral acids or in-series introduced mineral acids. Supply points of the above solutions to the pile can be different. |
| Method of bath-well leaching of metals / 2475639 Method of bath-well leaching of metals from ores includes treatment of mineral mass by solution of leaching in baths and metal winning from product solution. Baths are formed along leached mass, in the baths bottom a system of injection and extraction wells is built located above the level of bath with depth not less than the lower point of leached layer of mineral mass, and baths are filled with agglomerated mineral mass or pulp prepared in advance from extracted material, mineral mass in baths is treated by solution of leaching, and metal is extracted from product solution. Reusable solution obtained after metal extraction is strengthened or replaced with solution of another composition and is supplied to the system of injection wells for leaching of lower layers of material, then working solution is pumped off with leached metal through the system of extraction wells and metal is extracted from it; for leaching of lower layers of material solutions of environmentally safe chemicals, such as chlorides or thiosulfates, are used. |
| Method for leaching of precious metals from technogenic raw material / 2474683 Method for leaching of precious metals from technogenic raw material involves preparation of open working-out or capacity, waterproofing of its walls and bottom, arrangement of mineral mass in it, supply of a leaching solution, proper leaching and extraction of precious metals. The invented method differs by the fact that arrangement of mineral mass is preceded with construction in the working-out or the capacity of a system of pumping-in and pumping-out pipes perforated in lower part at the level of a future root system of plants, and after mineral mass is arranged, seeds of young plants are planted in its upper layer, which are capable of accumulating precious metals in their tissues; supply and removal of the leaching solution is performed through the system of pumping-in and pumping-out pipes after the stage of active formation of plant root system; at that, as leaching solution, active low concentrated leaching solution is used, which has passed photoelectrochemical treatment, and extraction of precious metals is performed by sorption or electric sorption of its diluted forms from pumped-out solutions and its extraction from plants extracted from mineral mass when they each a certain size. |
 Solution mining method and system / 2472927Deposit development method using underground solution involves the following stages at which: pressure pipeline is provided, which is passed to mineral deposit containing the required mineral; at that, pressure pipeline is provided with possibility of supplying the discharged fluid to mineral deposit in order to dilute the necessary mineral and to form the extracted brine; extraction pipeline is provided, which is passed to mineral deposit and provided with possibility of supplying the extracted brine to the ground surface; discharged fluid is pumped to pressure pipeline; extracted brine is cooled during its transportation through the supply pipeline and one or more heat exchangers to separation plant; at that, cooling of the extracted brine leads to deposition of the necessary mineral, and thus formation of pulp consisting of solid crystals of the necessary mineral, which are suspended in brine; solid crystals of the necessary mineral are separated from brine in separation plant, thus forming the flow of depleted liquid brine and extracting the product in the form of solid crystals of mineral; depleted brine is transported through one or more heat exchangers to pressure pipeline; at that, discharged fluid contains the above depleted brine, and by performing the heat exchange between extracted brine and depleted brine in one or more heat exchangers in order to cool down the extracted brine and heat the depleted brine; at that, mineral crystallisation to the product in the form of solid crystals is performed due to temperature decrease of extracted brine, which takes place in the section between mineral deposit and separation plant due to heat removal from extracted brine; at that, heat removal from extracted brine is mainly performed due to heat transfer from extracted brine to depleted brine in one or more heat exchangers and heat dissipation from extracted brine to atmosphere when the extracted brine is being transported in extraction pipeline, one ore more heat exchangers and transfer pipeline to separation plant. |
| Method for extracting gold from ores in place of deposition thereof / 2246002 Method includes prior pumping into bed through system of feed wells of solution, containing sodium hypochlorite or chloride, draining product solutions through draining wells system. Fed solution additionally has hydrogen chloride with following ratio of components, g/l: sodium hypochlorite 0.4-1.0, sodium chloride 3.0-4.0, hydrogen chloride 0.3-1.0. sodium hypochlorite solution is received directly at place of use via electrolysis of sodium chloride solution. For receiving sodium hypochlorite solution rotation compounds are used, received after productive solutions cycle through absorption columns. |
 Method for extraction of uranium ores, lying in stable rocks, by underground lixiviation in chambers / 2247834Method includes filling drain mines with crushed complex coals before feeding working solutions for cased ore. Crushed complex coals are combusted in drain mines. Hot gases from drain mines are forced into chamber via ventilator. Wastes of hot gases from chamber are sent through irrigation chambers, system of irrigation pipelines into irrigation mines and along ventilation mines to surface. Heating of cased ore is stopped when reaching temperature of hot gases in output jet from chamber of no less than +100 degrees Celsius. After stopping heating of cased ore, working solutions are sent to lixiviation chamber. With decrease of concentration of useful component in productive solutions to extreme limit feeding of working solutions into chamber is stopped and heating of cased ore is repeated. After stopping of heating of cased ore working solutions are fed into chamber. Then, lixiviation of cased ore in chamber is performed until full extraction of deposits with alternation of heating and cased ore irrigation in turns. Collection of productive solutions is performed through drain mines. As complex coals, coals containing uranium and vitrinite are taken. |
 Stack for group lixiviation of metals from frozen rocks (variants) / 2249102Stack has bare metallic net in its base, used as deflector and/or lower electrode when letting current through stack, layer of roughly broken rocks with membrane inside for separating productive and used solutions, two autonomous draining devices in layer of rocks below and above the membrane, above the layer a fiber is placed for protection from mudding, actual lixiviated rocks, system of perforated pipes for feeding working solutions into stack or its certain portions and additional elements on upper surface of stack, mainly for protection thereof from freezing, metallic net as upper electrode, heating cable in form of flat flexible coil, and heat-protective covers. Second variant is different, because stack has bottom and side walls of durable non-flammable materials, layer of roughly broken rocks with membrane of non-flammable material inside for separating productive and used solutions, two autonomous draining devices in layer of rocks above and below the membrane, above the layer fiber for protection from mudding is placed, actual lixiviated rocks, system of perforated pipes for feeding working solutions into stack or its certain portions and additional elements on upper surface of stack, mainly for protection from freezing, heating cable in form of flat flexible coil and heat-protective covers, that in conjunction provides for possible group lixiviation at any season of year. |
| Method for group lixiviation of metals from frozen rocks / 2249103 Method includes removal of soil from portion, meant for construction of stack of rocks for metals lixiviation, forming of anti-filtering base, mounting equipment for draining productive solution, placing lixiviated rocks on prepared base and feeding working reagents solutions into stack. In base of frozen rocks stack metallic net is placed, above it a layer of roughly broken rocks with thickness equal to fractions of meter, above it a rough fiber is placed in one or several layers, in same layer horizontal perforated polymer pipes are placed, not pressed by higher rocks, for feeding solution of working reagents and admixtures. Then stack is subjected to effect of UHF electromagnetic field of generator plant, displaced along upper stack surface by shuttle method for its even heating. Hot solution of working reagents and admixtures is fed into layer of rocks under pressure along perforated pipes with increase of melted working zone and displacement of melting front upwards, until finishing process of metals lixiviation from the stack. |
| Method for group lixiviation of metals from frozen rocks / 2249104 Method includes removal of soil from portion, meant for construction of stack of rocks for metals lixiviation, forming of anti-filtering base, mounting equipment for draining productive solution, placing lixiviated rocks on prepared base and feeding working reagents solutions into stack. Stack of rocks meant for lixiviation of metals is formed in cold season of the year from frozen fractured rocks, with added layers of easily-soluble metal salts with high energy of forming of their water solutions and low eutectics temperature. Perforated pipes are placed in the stack for feeding working reagents solution, above the stack heat-protective device is constructed for preventing melting stack from freezing. Surface of stack is made concave and then hot solution of working reagents is sprayed onto stack or injected therein, which dissolves slats in the stack and as a result of produced heat, heat, brought by working reagents from outside and low freezing temperature of formed solution stack of frozen rocks is melted and metals lixiviation process is started and finished therein. |
| Method for group lixiviation of metals from frozen rocks / 2249105 Method includes removal of soil from portion, meant for construction of stack of rocks for lixiviation of metals, forming of anti-filtering base, mounting equipment for draining productive solution, placing lixiviated rocks on prepared base and feeding reagents solutions into stack. In the stack vertical perforated polymer pipes are placed for feeding solution of working reagents and admixtures - concentrated solutions of easily soluble salts of alkali and other metals with low eutectics temperature, upper surface of stack of frozen rocks is made concave. Durable film is placed thereon or a wooden board platform for displacement of generator plant along these, then hot solution of working reagents and admixtures is fed onto stack, below film or platform, and stack is subjected to effect of UHF electromagnetic field by a generator plant, displaced along upper surface of stack by shuttle method for even heating thereof. Concurrently hot solution of working reagents and admixtures is gradually fed under pressure through vertical perforated polymer pipes with increase of amount of melted working zone and displacement of melting front downwards, until reaching stack base and finishing metals lixiviation from stack independently from current season of the year. |
 Method for preparing and feeding gas-saturated solutions into geo-technological well / 2256788Method includes feeding liquid and gas to assembly for mixing them and solving gas in liquid in gas solution-conducting pipe, lowered into well. Gas is also fed to working column of well, above-well portion of this pipe is made of transparent materials, and its lower end is mounted in gas-filled well portion at depth, exceeding its hydraulic resistance. |
 Method and device for underground reservoir forming in rock salt / 2260116Method involves mounting coaxial outer and central suspension pipe strings with installing central pipe string bottom at underground reservoir bottom; sealing well head; supplying solvent into underground reservoir to be formed through outer suspended pipe string and displacing the resultant brine to ground surface through central pipe string. Channel for brine movement to bottom of central pipe string is formed above insoluble rock deposit present in underground reservoir between lower ends of outer and central pipe strings. Before salt dissolving process shutdown or in the case of oversized insoluble rock ingress in central pipe string bottom solvent is supplied to underground reservoir through central pipe string and brine is displaced through outer one. |
 Leaching method for underground non-ferrous metal ore having in situ reducers / 2264535Method involves forming injection and unloading excavations; launching ore in situ with the use of acid solutions and extracting metal from acid solution. Acidulation is performed by holding the solutions in formation and by reaching pH≥3.0 in seams, cracks and pores having maximal permeability in the presence of oxidizer. Productive solutions are removed under pH value equal to 1.5-2.5 and pH thereof is gradually increased to reach 3.0 and more by oxidizer introduction. |
| Method of underground metal heap leaching from permafrost rock / 2270915 Method involves drilling injection wells in alluvial deposit block and boring extraction well in center thereof to extract the production solutions; injecting working reagent solutions via the wells and extracting the production solutions; performing fracturing of central part of productive horizon by blasting thereof from extraction well in parallel to horizon borders; forming crushed zone and cracked zones in bottom rock in lower part of extraction well for production solution accumulation; supplying liquid explosive through extraction well into cavities and cracks formed by fracturing operation; initiating camouflet blasting in the cavities to break productive horizon rock; injecting hot working reagent solution through injection well into the productive horizon. The working reagent solution includes additives, namely easy solving alkali or other metal salts having low eutectic temperature not reacting with the working reagents and with possible intermediate products of reaction. The additives are mixed in amounts providing concentration near saturation. |
FIELD: oil-and-gas industry.
SUBSTANCE: proposed CIL method comprises injection of activated leaching solution in producing bed via system of injection wells with subsequent extraction of gold. Said leaching solutions are injected via said system of injection wells in separate jets. First, hydrocarbonate-peroxide solution subjected to photo electrochemical processing is injected. Then after a pause, hydrochloric acid plus hydrogen peroxide subjected beforehand to UV radiation are injected. After detention of solution in producing bed till transition of the main portion of gold from mineral bulk into producing solution, perforated capsules with sorbent fitted with electrodes are placed into wells. Voltage is fed to said electrodes for direction diffusion of dissolved gold ions to sorbent and its sorption and extra leaching of gold remained in ore bed. Then sorbent saturated with gold is extracted to be recovered.
EFFECT: higher CIL efficiency.
The invention relates to the technology of underground leaching of noble metals, such as gold Sands of deep alluvial or from technogenic mineral formations (tails of enrichment of ores and dumps), and can be used in mining of placer deposits, mainly of the deep-seated by injection of solutions of leaching agents in the reservoir Sands through the system of injection wells and sorption extraction of gold from productive solutions.
Known hydrometallurgical way leaching of gold and silver in alkaline medium (pH=8-13) solution containing 12% chloride and 1% sodium hypochlorite. After cementation of gold and silver, zinc, Hypo-chlorite regenerate by the electrolysis of a solution and return to the leach (see U.S. patent N 4342592, 1982).
Recommended in the patent composition leaching reagent cannot be used for underground leaching for environmental reasons, because of the high content of chloride.
Closest to the claimed method is a method of leaching of metals, in particular gold and silver carried out in two stages. At the first stage of leaching use chlorine solution, and the supply of chlorine is adjusted to a solution had the pH of not less than 3. Surplus of active chlorine in pregnant solution restore before its refining and processing solution perform one of the known methods - sorption, cementation or electrolysis. At the second stage of refinement reservoir continue sodium thiosulfate. At the same time, there is a restoration of unreacted active chlorine and neutralization of water than are provided with ecological requirements to formation waters horizon (see RF patent №2074958, IPC 21 43/28, pub. 10.03.97,).
The disadvantage of this method is low metal recovery due to his loss with working solutions and on particles of clay minerals have sorption active properties.
The technical result of the proposed method is to increase the efficiency of leaching by reducing the loss of gold with working solutions and its on clay minerals.
Result is achieved by the method of leaching of gold from the deeper placers and technogenic mineral formations, including the filing of the productive layer of activated leaching solutions through a system of injection wells with the subsequent extraction of gold, differs in that the supply of leaching solutions through a system of injection wells produced by injection solution separate jets, while initially submit the hydro-peroxide solution subjected photoelectrochemical processing, then, after a pause, submit the solution of hydrochloric acid with the addition of hydrogen peroxide subjected before serving ultraviolet irradiation, after solution in the productive formation to the achievement of transition the main part of the gold from mineral mass in productive solution in wells placed perforated capsules with a sorbent, equipped with electrodes and serves on the electrode voltage to provide directional diffusion of ions dissolved gold to sorbent and its sorption and remaining in ore formation gold, then saturated with gold sorbent extract and undergo the process of regeneration.
The method is as follows.
Produce drilling, casing and injection wells. The casing of injection wells perform two coaxial perforated pipes, of which are external casing. Site of perforation of external and internal pipes connect the short pipes. Through internal pipe serves leachate solutions, initially hydro-peroxide-ended received reactor, then, after a pause, a solution of hydrochloric acid with the addition of hydrogen peroxide, with irradiation him before serving in the layer of UV rays. Solutions hydrocarbonate-peroxide compositions, with jet pulse filing into the reservoir, through subsequent diffusion processes ensure the spread of hydrocarbonate ions and active oxygen in the film of water, surrounding mineral particles, including sulphide minerals and magnetite with dispersed gold. It provides initial oxidation of minerals in the surface area and space, adjacent to the surface of cracks and pores, respectively, and a significant reduction of oxidants as part of the main solution. The main leaching solution containing complexing and oxidizer for gold, also through wells serves a few dozen hours after the original filing of hydro-peroxide solution. The main components of the solution also from areas of high initial concentration of diffusing distributed in the main volume of the reservoir. Due to the advanced surface formed after the processing of the active solution hydro-peroxide-ended high concentrations of components chloride peroxide solution relatively quickly oxidize and leached gold.
Due to the catalyzed by ultraviolet irradiation of reaction between hydrogen chloride and hydrogen peroxide mainly solution, formed active metastable hypochlorous acid, muriatic environment periodically and decaying on the atomic oxygen, chlorine and water 4 l - 4l*+2O*+2H 2 o Hypochlorous acid and formed by the reaction products react with gold with the release of complex anions type Au(OHCl) and Au(Cl) 4 - . Educated comprehensive gold ions in the electric field periodically dissociate into cations and anions, cations to recombination with chlorine anions and hydroxyl have time to migrate to the cathode and, consequently, to the sorbent that is placed in the well.
An example of a specific use of the method.
(more than 12 m on the roof of the stratum) placer gold, with a capacity of a layer of sand 3-3 .5 m mainly represented by small (up to 0.5 mm) and dispersed (adsorbed minerals, clays, included in the lattice of magnetite and other minerals) secretions metal.
The filtration coefficient in the Sands of 1.5 m/day.
Initially carry out drilling diameter 150 mm on the network 5*5 m, Casing of injection wells produce plastic pipes with a diameter of 150 mm and 100 mm, which perforate and place of perforation of these pipes connect the pipes in diameter of 50 mm The contour of block Buryat drainage wells network 10*10 and equip them airlifts for periodic pumping of water reservoir, which may decrease the concentration leaching agents.
Preparation of leaching solutions are in special (hydro-peroxide-ended) and photochemical (a solution of hydrochloric acid with the addition of hydrogen peroxide) reactors. Hydrocarbonate- solution prepared from a 5%solution of sodium carbonate by electrolysis, input 10 g/l 30%hydrogen peroxide and irradiation resulting suspension of ultraviolet lamp type DPT-230.
Solutions hydrocarbonate-peroxide-ended served in the reservoir through pipes, placed into wells in the jet pulse mode until reaching the designed T:G=50:1. After a pause 48 hours for which a solution diffuses into the main volume of the reservoir, in him the same way pumped solution is sodium peroxide composition, and prior to injection into the reservoir solution, is irradiated with UV lamp DT-230 for 10 minutes. After a pause in 72 hours during which the leaching of gold in the diffusion regime of oxidized at the first stage of minerals, pipe is extracted from wells and lowered capsules with electrodes, and anodes and cathodes are placed in individual wells and cathodes are placed in the ion-exchange resin And-100. After the filing of the electrodes voltage value 5-8, is leached chloride solution gold and its sorption resin. In addition, due to allocation on the anode chlorine and formation of new moving in an electric field chlorine-oxygen complexes, the leaching of remaining in the solid phase of gold intensified. Due to combination of processes leached at the first stage (when primary chloride peroxide solution) gold and its , the total time of its transfer into the solution and accumulation in areas on resin is 10 days when extracted from the solid 75-85%. After the process of sorption capsules with the resin extracted from the wells and pass on regeneration.
Method of leaching of gold from the deeper placers and technogenic mineral formations, including the filing of the productive layer of activated leaching solutions through the system injection wells with the subsequent extraction of gold, characterized in that the supply leaching solutions through a system of injection wells produced by the injection of a solution of separate jets, while initially submit the hydro-peroxide solution subjected photoelectrochemical processing, pause, and then submit the solution of hydrochloric acid with the addition of hydrogen peroxide subjected before serving ultraviolet irradiation, after solution in the productive formation to the achievement of transition the main part of the gold from mineral mass in pregnant solution in the wells is placed perforated capsules with a sorbent, equipped with electrodes and serves on the electrode voltage to provide directional diffusion of ions dissolved gold to sorbent and its sorption and remaining in ore formation gold, then saturated with gold sorbent extract and undergo the process of regeneration.