CN101962718A - Liquid film for extracting gold from alkaline solution - Google Patents
Liquid film for extracting gold from alkaline solution Download PDFInfo
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- CN101962718A CN101962718A CN2010102828704A CN201010282870A CN101962718A CN 101962718 A CN101962718 A CN 101962718A CN 2010102828704 A CN2010102828704 A CN 2010102828704A CN 201010282870 A CN201010282870 A CN 201010282870A CN 101962718 A CN101962718 A CN 101962718A
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Abstract
The invention discloses a liquid film for extracting gold from alkaline solution. The liquid film comprises 5 mL of surfactant, 6 g of carrier, 3 g of synergist, 85 mL of diluent and 100 mL of internal phase, and the liquid film consists of an oil phase and the internal phase; the oil phase comprises the surfactant, the carrier, the synergist and the diluent; the internal phase is liquid containing 2 weight percent of sodium hydroxide; the carrier and the synergist are dissolved in the diluent first and then mixed with the surfactant; after the oil phase and the internal phase are mixed, an emulsus liquid film is prepared under high-speed stirring, wherein the surfactant is prepared from sulphonated kerosene and blue 113 in a volume ratio of 1:1; the carrier is di-n-dodecylamine; the synergist is tri-n-octylphosphine oxide; and the diluent is the sulphonated kerosene. When the liquid film is used, gold extraction can be performed under the alkaline condition that pH value is 9, and the gold selectivity is high.
Description
Technical field
The present invention relates under a kind of higher pH value condition liquid film in the liquid film extraction process that contains the gold in the golden liquid is leached in cyaniding, carry the liquid film of golden usefulness in particularly a kind of basic solution.
Background technology
The transporting mechanism of Emulsion Liquid Membrane Separation Technique can be divided into two classes, and a class is passive conveying mechanism, and another kind of is to promote to carry mechanism.Passive conveying is to utilize component to be extracted to dissolve in organic phase, also can inorganic mutually in the dissolving, component to be extracted enters film also inwardly water diffusion mutually, and it is resolved in interior aqueous phase, as the Emulsion Liquid Membrane Separation Technique Phenol-Containing Wastewater Treatment, with kerosene is membrane solvent, interior water is NaOH, phenol can be dissolved in kerosene and enter the liquid film phase in the waste water, being generated phenol sodium when diffusion arrives inner boundary is fixed up, form the concentration difference of inside and outside aqueous phase phenol, the result constantly makes the phenol of outer aqueous phase enter interior aqueous phase, reaches the purpose of handling waste water and enrichment method phenol.
Promote to carry mechanism be pending component does not dissolve in mutually at film, for realizing this component of enrichment method, must add flowing carrier in mutually to film, under the flowing carrier effect, component to be extracted constantly enters interior water by outer water, the enrichment of aqueous phase in being implemented in, Emulsion Liquid Membrane Separation Technique are extracted metal ion and are promptly belonged to this type of, its mechanism as shown in Figure 1:
Gold is with Au (CN) in the gold mine gold-containing solution
2 -Form exists, the Au in the gold-containing solution (CN)
2 -React carrier and Au (CN) by liquid film at interior outside surface mutually and strippant surperficial the formation under binding substances and the effect of liquid film at carrier with carrier
2 -Binding substances dissociated, carrier obtain the reduction and turn back to the liquid film surface, proceed Au (CN)
2 -Transhipment, Au (CN)
2 -With the reaction of interior strippant mutually and stay interior phase.This process makes the gold content in the gold-containing solution constantly reduce continuously, and the gold content in mutually constantly increases simultaneously.
In the golden process in the emulsion liquid film separation and Extraction solution, the liquid film prescription is very important, it directly influences the quality that liquid film extracts golden effect, the liquid film prescription that existing liquid film both domestic and external extracts gold just has extraction effect preferably to the gold in the gold-containing solution under acidity or subacidity situation, as everyone knows, the pH of gold mine lean solution generally presents stronger alkalescence, and this just makes existing liquid membrane extraction of gold prescription reduce greatly in the scope and the effect of gold mine industrial application.And the stability of general emulsion liquid film is all poor, and this is the difficult problem that liquid film is applied to gold mine too.Therefore, this just requires to take measures the liquid film prescription is improved the liquid film prescription that adapts to gold mine reality to develop.
Summary of the invention
Goal of the invention provides the liquid film of putting forward golden usefulness in a kind of basic solution, and this liquid film is an emulsion liquid film, can reclaim the gold in the cyaniding leaching gold-containing solution under higher pH value condition.
Technical scheme of the present invention is: select more alkaline extraction agent, and be aided with suitable synergist, improve the pH of extraction agent
50, make the milk sap of making that the good golden effect of carrying be arranged in higher basic solution.
Liquid film prescription of the present invention is: tensio-active agent: carrier: synergist: thinner: interior phase=5mL: 6g: 3g: 85mL: 100mL; Form with interior two portions mutually by oil phase; Constitute oil phase by tensio-active agent, carrier, synergist and thinner, interior is to contain the liquid that weight percent is 2% sodium hydroxide mutually, and carrier and synergist are dissolved in thinner earlier, mixes with tensio-active agent again; Oil phase with interior mix mutually after, emulsion liquid film is made under high-speed stirring.
Tensio-active agent wherein is to be made into by sulfonated kerosene and the volume ratio of orchid 113 by 1: 1, and carrier is two dodecyl amine, and synergist is a trioctyl-phosphine oxide, and thinner is a sulfonated kerosene.
The invention has the advantages that: can carry out the extraction of gold under alkaline condition (pH=9), its selectivity to gold is good.
Description of drawings
Fig. 1 promotes to carry the mechanism synoptic diagram.
A-to be lifted from; The B-carrier; The C-complex compound; The D-strippant; E-decomplexing product.
Embodiment:
Before each the extraction, at first add acid and adjust lean solution pH=9, according to certain proportioning adding emulsion slowly, under certain stirring velocity, emulsion is evenly distributed then, after the extraction by certain hour, gold can enter the film phase.
Liquid film prescription of the present invention is: tensio-active agent: carrier: synergist: thinner: interior phase=5mL: 6g: 3g: 85mL: 100mL; Form with interior two portions mutually by oil phase; Constitute oil phase by tensio-active agent, carrier, synergist and thinner, interior is to contain the liquid that weight percent is 2% sodium hydroxide mutually, and carrier and synergist are dissolved in thinner earlier, mixes with tensio-active agent again; Oil phase with interior mix mutually after, emulsion liquid film is made under high-speed stirring.
Tensio-active agent wherein is to be made into by sulfonated kerosene and the volume ratio of orchid 113 by 1: 1, and carrier is two dodecyl amine, and synergist is a trioctyl-phosphine oxide, and thinner is a sulfonated kerosene.
Adopt prescription of the present invention that the cyaniding of the laboratory autogamy under the high pH value of the alkalescence condition is leached and contain golden liquid and carry out liquid film and extract test, test-results sees Table 1:
Table 1 is put forward golden experiment analysis results
By above-mentioned test-results as can be seen, using liquid film prescription of the present invention to leach the gold that contains in the golden liquid to cyaniding under higher pH value condition effectively extracts.
Claims (1)
1. carry the liquid film of golden usefulness in the basic solution, its prescription is: tensio-active agent: carrier: synergist: thinner: interior phase=5mL: 6g: 3g: 85mL: 100mL; Form with interior two portions mutually by oil phase; Constitute oil phase by tensio-active agent, carrier, synergist and thinner, interior is to contain the liquid that weight percent is 2% sodium hydroxide mutually, and carrier and synergist are dissolved in thinner earlier, mixes with tensio-active agent again; Oil phase with interior mix mutually after, emulsion liquid film is made under high-speed stirring;
Tensio-active agent wherein is to be made into by sulfonated kerosene and the volume ratio of orchid 113 by 1: 1, and carrier is two dodecyl amine, and synergist is a trioctyl-phosphine oxide, and thinner is a sulfonated kerosene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102828704A CN101962718B (en) | 2010-09-16 | 2010-09-16 | Liquid film for extracting gold from alkaline solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102828704A CN101962718B (en) | 2010-09-16 | 2010-09-16 | Liquid film for extracting gold from alkaline solution |
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| Publication Number | Publication Date |
|---|---|
| CN101962718A true CN101962718A (en) | 2011-02-02 |
| CN101962718B CN101962718B (en) | 2011-12-14 |
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| CN2010102828704A Active CN101962718B (en) | 2010-09-16 | 2010-09-16 | Liquid film for extracting gold from alkaline solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861773A (en) * | 2017-03-14 | 2017-06-20 | 安徽海德石油化工有限公司 | The method that the isomerization catalyst of carbon four is prepared using useless platinum based catalyst |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070229A (en) * | 1991-08-30 | 1993-03-24 | 中国科学院大连化学物理研究所 | A kind of emulsion liquid membrane is carried gold and is reclaimed sodium cyanide technology |
| CN101386916A (en) * | 2008-10-20 | 2009-03-18 | 长春黄金研究院 | Emulsion liquid membrane for gold extraction |
-
2010
- 2010-09-16 CN CN2010102828704A patent/CN101962718B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070229A (en) * | 1991-08-30 | 1993-03-24 | 中国科学院大连化学物理研究所 | A kind of emulsion liquid membrane is carried gold and is reclaimed sodium cyanide technology |
| CN101386916A (en) * | 2008-10-20 | 2009-03-18 | 长春黄金研究院 | Emulsion liquid membrane for gold extraction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861773A (en) * | 2017-03-14 | 2017-06-20 | 安徽海德石油化工有限公司 | The method that the isomerization catalyst of carbon four is prepared using useless platinum based catalyst |
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| CN101962718B (en) | 2011-12-14 |
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Address after: 130012 Changchun Gold Research Institute, No. 6760 nanhu road, Chaoyang District, Changchun, Jilin Co-patentee after: China National Gold Corporation Technology Center Patentee after: Changchun Gold Research Institute Co., Ltd. Address before: 130012 No. 6760 nanhu road, Jilin City, Changchun Province Co-patentee before: China National Gold Corporation Technology Center Patentee before: Changchun Gold Research Institute |