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Emulsion liquid membrane for gold extraction

A technology of emulsified liquid film and liquid film, which is applied in the field of chemical industry, can solve the problems of reduced range and effect, poor stability of emulsion liquid film, etc., and achieve the effect of good stability, strong practicability and improved extraction rate

Inactive Publication Date: 2009-03-18
CHANGCHUN GOLD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing domestic and foreign liquid membrane formulas for extracting gold are only effective in extracting gold in gold-containing solutions under acidic or slightly acidic conditions. As we all know, the pH of barren liquid in gold mines generally presents a strong alkalinity , which greatly reduces the scope and effect of the existing liquid film extraction formula in the gold mine industry, and the stability of the general emulsion liquid film is relatively poor, which is also a difficult problem for the liquid film to be applied to the gold mine

Method used

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  • Emulsion liquid membrane for gold extraction
  • Emulsion liquid membrane for gold extraction
  • Emulsion liquid membrane for gold extraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Raw material name volume percentage (%)

[0026] Sulfonated kerosene 83

[0027] n-octylamine 8

[0028] Monosuccinimide 5

[0029] liquid paraffin 2

[0030] Methyltrioctylamine chloride 2

[0031] The emulsified liquid film layer made according to the above ratio and the internal phase extraction agent are mixed at a ratio of 1:1 and stirred at a high speed to form an emulsified liquid film for gold extraction, and the internal phase extraction agent is 1% NaOH aqueous solution;

[0032] Before each gold extraction, first add acid to adjust the pH value of the gold-containing solution at 7-10, then slowly add the emulsified liquid film and stir according to the ratio of 1:5 of the emulsified liquid film reagent to the gold-containing solution, and the stirring speed 200rpm, so that the emulsion is evenly distributed, and the gold can enter the inner phase after 10 minutes of extraction time. The experimental results are shown in Table 1

[0033] Liquid film formu...

Embodiment 2

[0037] Get the following raw material ratio to make the emulsified liquid film layer:

[0038] Raw material name volume percentage (%)

[0039] Sulfonated kerosene 85

[0040] n-octylamine 10

[0041] Monosuccinimide 3

[0042] liquid paraffin 1

[0043] Methyltrioctylamine chloride 1

[0044] Mix the emulsified liquid film layer prepared according to the above raw material ratio with the internal phase extraction agent at a ratio of 1:1 and stir at a high speed to form an emulsified liquid film for gold extraction, and the internal phase extraction agent is 1% NaOH aqueous solution;

[0045] Before each gold extraction, first add acid to adjust the pH value of the gold-containing solution to 9, then slowly add and stir according to the ratio of the emulsified liquid film to the gold-containing solution 1:5, and the stirring speed is 230rpm, so that the emulsion is distributed Uniform, gold extraction time is 15 minutes, gold can enter the inner phase, the experimental re...

Embodiment 3

[0050] Get the following raw material ratio to make the emulsified liquid film layer:

[0051] Raw material name volume percentage (%)

[0052] Sulfonated kerosene 84

[0053] n-octylamine 7

[0054] Monosuccinimide 4

[0055] liquid paraffin 2

[0056] Methyltrioctylamine chloride 3

[0057] Mix the emulsified liquid film layer prepared according to the above raw material ratio with the internal phase extraction agent at a ratio of 1:1 and stir at a high speed to form an emulsified liquid film for gold extraction, and the internal phase extraction agent is 1% NaOH aqueous solution;

[0058] Before extracting gold each time, first add acid to adjust the pH value of the gold-containing solution at 6-10, then slowly add and stir according to the ratio of 1:5 of the emulsified liquid film reagent to the gold-containing solution, and the stirring speed is 250rpm, The emulsion is evenly distributed, and the gold-containing liquid can enter the inner phase after 20 minutes of e...

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Abstract

The invention relates to an emulsion liquid membrane for extracting gold, which belongs to the chemical industry class. The emulsion liquid membrane consists of a liquid membrane layer and an inner phase stripping agent, wherein the liquid membrane layer consists of a membrane diluting agent, a flowing carrier, surfactant, a membrane intensifier and a modifier, and the liquid membrane layer is mixed with the inner phase stripping agent to form the emulsion liquid membrane for extracting gold under the condition of high-speed stirring. The emulsion liquid membrane for extracting gold has the advantages of extracting the gold under the alkaline condition with good selectivity of the gold, and contributing to gold extraction and further application of the emulsion liquid membrane in the gold industry with strong practicability.

Description

technical field [0001] The invention relates to chemical industry, in particular to an emulsified liquid membrane for extracting gold, in particular to an emulsified liquid membrane for extracting gold in alkaline gold-containing precious liquid of gold mines with low-grade gold-bearing ore resources. Background technique [0002] As we all know, material science, energy development and utilization, and information revolution are called the three pillars of the contemporary industrial revolution, and the material industry is the foundation of it. Therefore, the development and development of various new materials with special functions is not only to meet the needs of the new technological revolution, but also an important guarantee to improve the level and efficiency of industrial production. [0003] Since the 1960s, the research and development of membrane separation technology has become one of the most concerned fields in recent years, and has achieved remarkable develo...

Claims

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Application Information

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IPC IPC(8): C22B11/00
Inventor 龙振坤张凯顺张灵芝李哲浩
Owner CHANGCHUN GOLD RES INST
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