Sorbent of oil, oil products and organic solvents (versions)

FIELD: chemistry.

SUBSTANCE: group of inventions relates to compositions of hard porous sorbents and can be used for collection of oil, oil products and organic solvents from various surfaces, including water, soil, etc. Sorbent contains hard porous carrier and organic modifier. In the first variant, direct or active dye based on porphyrins and phthalocyanins are used as organic modifier. In the second variant, vat dye is used as organic modifier. In the third variant, sulphur dye is used as organic modifier. Proposed sorbent in all variants ensures improvement of sorbent sorption properties due to modification of carrier surface.

EFFECT: improved sorption properties of sorbent.

3 cl, 1 tbl, 5 ex

 

The invention relates to compositions of solid porous adsorbents and can be used to collect oil, petroleum products and organic solvents from a variety of surfaces, including water, soil, etc.

Known sorbent of oil and oil products containing cellulose fiber ASF, natural resins, Colin and Montan wax in the following ratio, wt.%:

cellulose fiber ASF57-60
natural resins0,99-1
Colin16-21
mountain wax17-23

(see the patent of the Russian Federation No. 2002114536, CL IPC6B01J 20/22).

Known sorbent contains four components - cellulose fiber, natural resins, Colin and Montan wax. This number of components does not provide a uniform distribution of components on the surface of the carrier in the preparation of the sorbent, resulting in a decrease in sorption activity.

In addition, the high viscosity of the two components of natural resins and mineral wax, complicates the mixing process, which also leads to uneven hydrophobization of the surface of the media.

Known sorbent oil containing fibrous media, the hydrophobic component from the group of paraffin, polypro is, polyisoprene, polyisobutylene, polybutadiene and the mixture fractions alkalicarbonate substances With10-C16With17-C20With20-C25at a ratio of 1:1:1-1:3:5-2:3:5 respectively (see RF patent №2071829, CL IPC6B01J 20/22).

Given the sorbent comprises three components - fiber media, the wetting agent from the group of paraffin, polypropylene, polyisoprene, polyisobutylene, polybutadiene and the mixture fractions alkalicarbonate substances With10-C16C17-C20With20-C25at a ratio of 1:1:1-1:3:5-2:3:5 respectively.

Given the sorbent also has a complex structure due to the presence of a large number of components.

In addition, in the preparation of Sobrante uses a large amount of toxic solvent (chloroform), to remove the drying of the sorbent use special equipment that adds cost and complexity to the process of preparation of the sorbent.

Finally, the presence of costly mixture fractions alkalicarbonate substances With10-C16With17-C20C20-C25at a ratio of 1:1:1-1:3:5-2:3:5 respectively, significantly increases its value.

Known adsorbent of oil and oil products for water purification and soil containing a porous solid carrier and a mixture of fractions of fatty acids (C10-C16With17-C20 20-C25when the mass ratio of 1:1:1-1:2:3-5:3:2 respectively (see RF patent №2049543, CL IPC6B01J 20/22).

In the specified sorbent improved one of the drawbacks of the previous one, namely, a reduced number of components entering into its composition.

However, part of the sorbent of organic modifier in the form of a mixture of fractions of fatty acids With10-C16With17-C20and C20-C25when the mass ratio of 1:1:1-1:2:3-5:3:2 respectively is time-consuming to manufacture and expensive component, which leads to higher sorbent.

When cooking specified sorbent used flammable, explosive and toxic solvent - pentane, which makes the production of sorbent flammable and explosive.

In addition, for preparation of the sorbent, as described above analog, requires special equipment to remove solvent, which also adds cost and complexity to the process of preparation of the sorbent.

The sorbent, the latest, is the closest technical solution to the technical nature for all versions.

The present invention is to improve the sorption properties of the sorbent by modifying the surface of the carrier.

In the first embodiment, the problem is solved in such a way that f is m sorbent, containing a porous solid media and organic modifier, as the latter have a direct or active dye or dyes based on porphyrins and phthalocyanines in the following ratio, wt.%:

direct or active dye or dye
based on porphyrins and phthalocyanines0,02...4
solid porous mediathe rest of it.

In the second embodiment, the problem is solved in such a way that in the known sorbent containing a porous solid media and organic modifier, as the latter use the VAT dye in the following ratio, wt.%:

VAT dye0,2...6
solid porous mediathe rest of it.

In the third embodiment, the problem is solved in such a way that in the known sorbent containing a porous solid media and organic modifier, as the last use of sulfur dye in the following ratio, wt.%:

sulfur dye 0,02...4
solid porous mediathe rest of it.

As a direct dye can be used straight black 3, straight black 23, direct black, direct black 2C and other dyes of this group.

As an active dye can be used active black, active black ST and other dyes of this group.

As dyes based on porphyrins and phthalocyanines can be used pheophorbide, chlorin e6and other dyes.

As the cubic organic dye can be used CBM black, blue grey 23, blue grey With other dyes of this group.

As sulfur organic dye can be used sulphur black (pasta), sulfur black 3 (powder) and other dyes of this group.

The proposed sorbent (options) consists of one component is a porous solid carrier, modified organic dye that ensures its uniform hydrophobic

In the process of modifying the organic dye is strongly associated with a porous solid carrier. When cleaning surfaces from oil, petroleum products and organic solvents dye with porous media is not washed off, not polluting, thus, the environment.

And finally, featur is Amy sorbent (options) after regeneration can be repeatedly used for its purpose, and while reducing its sorption properties used as feedstock for making fuel briquettes for commercial and domestic use.

As a porous solid media can be used cellulose, cellulose materials, all waste from the processing of wood, rice hulls, cake, meal, and similar materials depending on the location of the manufacturer.

The proposed sorbent in the first embodiment, receive the following method.

A portion of the dye is dissolved in cold water and heated to a temperature of 30-40°C. To the resulting solution under stirring injected alkaline agent (caustic soda or soda ash) and incubated at a constant temperature for 5-10 minutes. Then in the solution with constant stirring impose rigid porous media. The mixture is heated to a temperature of 60-100°C and stirred for 30 minutes. Later in the introduced salt and stirred heated for another 30 minutes. A solid product separated from the solution and dried.

Example 1.

Getting sorbent with a direct dye.

The sorbent containing a porous solid media, modified aniline black dye with the following ratio of components, wt.%

aniline is the first black dye 0,48
solid porous mediarest

get to the next method.

A portion of the aniline black dye in the amount of 4.8 g dissolved in 1000 ml of cold water and heated to a temperature of 30-40°C. To the solution with constant stirring injected with 0.9 g of soda ash and maintained at a constant temperature for 5-10 minutes. Then, the resulting solution with constant stirring introduced 60 g pine sawdust, crushed to a particle size of 0.4 to 1.2 mm, the Mixture is heated to a temperature of 60-70°C and stirred for 30 minutes. Then introduced 100 g of sodium chloride and stirred heated for another 30 minutes. A solid product separated from the solution and dried.

Example 2.

Getting sorbent with active dye.

The sorbent containing a porous solid media, the modified active yellow CH dye with the following ratio of components, wt.%

active yellow CH dye0,48
solid porous mediarest

get to the next method.

A portion of the active yellow CH dye in the amount of 4.8 g dissolved in 1000 ml of cold water and heated to a temperature of 30-40°C. In the solution at postannealing injected with 0.9 g of soda ash and maintained at a constant temperature for 5-10 minutes. Then, the resulting solution with constant stirring introduced 60 g pine sawdust, crushed to a particle size of 0.4 to 1.2 mm, the Mixture is heated to a temperature of 60°C and stirred for 30 minutes. Then introduced 60 g of sodium chloride and stirred heated for another 30 minutes. A solid product separated from the solution and dried.

Example 3.

Getting sorbent with dye-based porphyrins and phthalocyanines.

The sorbent containing a porous solid media, modified pheophorbide with the following ratio of components, wt.%

pheophorbide0,2
solid porous mediarest

get to the next method.

A portion of pheophorbide in the amount of 2 g dissolved in 1000 ml of cold water and heated to a temperature of 30-40°C. To the solution with constant stirring injected with 0.9 g of soda ash and maintained at a constant temperature for 5-10 minutes. Then, the resulting solution with constant stirring introduced 60 g pine sawdust, crushed to a particle size of 0.4 to 1.2 mm, the Mixture is heated to a temperature of 100°C and stirred for 30 minutes. Then injected into the system 140 g of sodium chloride and stirred heated for another 30 minutes. The solid product of OTDELA the t from the solution and dried.

The proposed sorbent in the second embodiment, receive the following method.

In the prepared half uterine dye solution add a solution of caustic soda, hydrosulfite sodium and neutralized contact Petrova and put him in a porous solid carrier. The composition is heated to a temperature of 35-40°C and stirred for 15 minutes. Then add the second half of the stock solution of the dye, heated to a temperature of 90-95°C and stirred for 40-50 minutes. Then add a 32.5% solution of acetic acid. The resulting sorbent is washed in cold water and treated with 0.25% solution of table salt. Further, the sorbent is separated from the solution and dried.

Example 4.

The sorbent containing a porous solid media, modified kubovy black dye with the following ratio of components, wt.%

blue black dye5
solid porous mediarest

get to the next method.

For preparation of stock solution of dye 50 g VAT of black dye RUB clean with 3-4 ml of water. In the resulting suspension is added 500 ml of water and add 12 ml of 32.5% sodium hydroxide solution and 20 g of hydrosulfite sodium. The resulting solution was diluted with water to 1000 ml, remaut to 55-60° C and maintained under stirring for 15-20 minutes. Then half of the resulting solution add 5-7 ml of 32.5% sodium hydroxide solution, 9-11 g of sodium sulfite and 2.5-3 ml of neutralized contact Petrov.

In the resulting mixture with constant stirring placed 60 g pine sawdust, crushed to a particle size of 0.4-1.2 mm, and incubated at a temperature of 35-40°15 minutes. Then the solution pour in the second half of the stock solution of the dye, heated to a temperature of 90°C and stirred for another 40-50 minutes. Then add 2 g of 32.5% solution of acetic acid. Further, the sorbent was washed with cold, treated with 0.25% sodium chloride solution and dried.

The proposed sorbent in the third embodiment, receive the following method.

Prepared by the Royal dye solution is introduced into an aqueous solution containing sodium sulfide and hydrosulfide sodium. In the resulting solution make a solid porous carrier, the composition is heated to a temperature of 50-55°C and stirred for 20-30 minutes, after which the solution add a 32.5% solution of acetic acid. Then the sorbent is separated from the solution and washed with hot and cold again with cold water. In conclusion, the sorbent is treated in an aqueous solution containing at least 10 g/l of triethanolamine or urea, or thiourea. Then the sorbent was washed with water and dried.

<> Example 5.

The sorbent containing a porous solid media, the modified sulphur black dye with the following ratio of components, wt.%

sulphur black dye0,26
solid porous mediarest

get to the next method.

For preparation of stock solution of the dye in 900 ml water dissolve 2,6-2,7 g of sodium sulfide, 0.2 g sodium hydroxide and 3 g of sodium chloride. The solution is heated to a temperature of 70-85°and make it to 2.6-2.7 g of sulfur black dye and continue to heat with stirring for 10-15 minutes. Then the solution is cooled to a temperature of 50-55°and introducing him to 0.3 g of sodium hydroxide and 1.4-1.6 g of hydrosulfite sodium and heated for 10-15 minutes. Then the solution is injected 100 ml of water with dissolved 1 g of sodium sulfide and 0.5 g of hydrosulfite sodium. In the resulting composition, contribute 60 g pine sawdust, crushed to a particle size of 0.4-1.2 mm and heated to 50-55°C for 20-30 minutes. Then the composition is added 2 g of 32.5% solution of acetic acid. Further, the sorbent is separated from the solution and washed thoroughly with cold and hot again with cold water. In conclusion, the sorbent is treated at a temperature of 38°in an aqueous solution containing not less than 12 g/l triethanolamine is a, washed with water and dried.

The obtained sorbents were tested for the sorption activity of empirically as follows.

On the surface of the water in a wide vessel (Petri dish), put a 4.5 ml of oil. Then on the oil stain evenly distributed sorbent in the amount of 1.1, After 3-5 minutes the sorbent with adsorbed oil was collected from the water surface mesh shovel, and purified water were investigated on the residual content of oil by the method of IR spectroscopy with the use of device "Specord M80 on the wavelength 2920 cm-1according to the method OST 38.01378-85.

The results are given in the table.

4,5/98,3
Table
№ p/pType of dyeSorption characteristics of sorbents
oildieselo-xylene
1Aniline black5,0/99,94,9/99,94,6/99,3
2Yellow light KIT4,8/98,94,7/99,34,4/98,6
3Pheophorbide4,5/96,84,4/96,04,1/95,7
4Blue black4,9/99,14,8/98,7
4Sulphur black5,1/99,95,0/99,54,6/98,4

The numerator shows the sorption capacity of the test sorbent (the number of grams of oil, petroleum products or organic solvents adsorbed to 1 g of sorbent), in the denominator - the degree of purification of the water surface in wt.%.

The proposed sorbent in all versions provides a high degree of purification of the contaminated surface by modifying the surface of the carrier.

1. The sorbent of oil, petroleum products and organic solvents containing a porous solid media and organic modifier, wherein as the organic modifier use direct or active dye or dyes based on porphyrins and phthalocyanines in the following ratio, wt.%:

direct or active dye or
dyes based on porphyrins and phthalocyanines0,02-4
solid porous mediarest

2. The sorbent of oil, petroleum products and organic solvents containing a porous solid media and organic modifier, characterized in that the organic is one modifier is used, the VAT dye in the following ratio of components, wt.%:

VAT dye0,2-6
solid porous mediarest

3. The sorbent of oil, petroleum products and organic solvents containing a porous solid media and organic modifier, wherein as the organic modifier used sulfur dye in the following ratio, wt.%:

sulfur dye0,02-4
solid porous mediarest



 

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