CN101386916A - Emulsion liquid membrane for gold extraction - Google Patents
Emulsion liquid membrane for gold extraction Download PDFInfo
- Publication number
- CN101386916A CN101386916A CNA2008100512894A CN200810051289A CN101386916A CN 101386916 A CN101386916 A CN 101386916A CN A2008100512894 A CNA2008100512894 A CN A2008100512894A CN 200810051289 A CN200810051289 A CN 200810051289A CN 101386916 A CN101386916 A CN 101386916A
- Authority
- CN
- China
- Prior art keywords
- gold
- liquid membrane
- emulsion
- emulsion liquid
- membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
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
The present invention relates to the chemical industry class, particularly a kind of emulsion liquid membrane that is used to carry gold refers to a kind of emulsion liquid membrane of carrying gold in the gold mine alkalescence golden liquid of low-grade gold containing ore resource especially.
Background technology
As everyone knows, the development and utilization of Materials science, the energy, information revolution are called as three big pillars of contemporary industry revolution, and material industry is again basis wherein.Therefore for all kinds of exploitation and developments with specific function novel material, being in order to satisfy the needs of new technology revolution, also is the important assurance that improves commercial production levels and benefit.
Since the comfortable sixties, the research and development of membrane separation technique become one of field that people paid close attention to the most in recent years, have obtained compelling significant development.Current membrane separation technique is applied to industries such as chemical industry, biochemical industry, medicine, environment protection, nonferrous metallurgy, nuclear technique, food, light industry, power, machinery as an emerging technology, and has obtained apparent in view economic benefit and social benefit.
The mankind noted from 1748 and find phenomenon of osmosis till now, understanding to film and characteristic thereof is progressively being deepened, the various specific performances that utilize film to have, as have separation, identification, reaction, energy transformation, conduction, performance such as luminous, occur micro-filtration, reverse osmosis, ultrafiltration, dialysis and gas delivery etc. in succession and separated technology.Wherein using for the research and development of membrane separation techniques such as liquid film and pervaporation, then is the thing over nearly 30 years, is with a wide range of applications.
Emulsion liquid membrane (liquid Surfactant Membranes is called for short LSM) isolation technique is a kind of emerging energy-saving separation means, and it has the high and big characteristic of flux of selectivity, thereby obtains day by day paying attention to.
The emulsion liquid membrane isolation technique is to be the separation that the speed difference realizes component when relying on component to see through film, thereby is referred to as the speed sepn process.
The emulsion liquid membrane isolation technique can be divided into two classes according to its transporting mechanism, and a class is passive conveying mechanism, and another kind 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 dissolving, component to be extracted enters film mutually and inwardly water diffusion.And it is resolved in interior aqueous phase, as emulsion liquid membrane isolation 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, is generated phenol sodium to be fixed up when diffusion arrives inner boundary, forms 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 film not dissolving in mutually, 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.
In the process of the gold in the emulsion liquid membrane separation and Extraction solution, the liquid film prescription is very important, and 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, this just makes existing liquid film extraction 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, to develop the liquid film prescription that adapts to gold mine reality.
Summary of the invention
The purpose of invention is to choose a kind of emulsion liquid membrane, can solve the using emulsion liquid film and reclaim gold in the gold mine gold-containing solution under alkaline condition.
The technical scheme of invention is: liquid film technology is a kind of new isolation technique that development is come on the basis of traditional liquid-liquid extraction, liquid film is to contain tensio-active agent, carrier, organic thinner is the liquid film oil phase, in bag water miscible reverse-extraction agent and form the water-in-oil emulsion that contains carrier, under the stirring of certain speed and form the emulsion liquid membrane put forward golden usefulness, it is formed as shown in Figure 1, it is mixed to be incorporated under the high-speed stirring with interior reverse-extraction agent mutually by liquid film layer and forms, wherein liquid film layer is by thinner, flowing carrier, tensio-active agent, film toughener and properties-correcting agent are formed, above-mentioned raw materials is made into the emulsion rete by certain prescription, and mixing also by 1: 1 emulsion rete and interior reverse-extraction agent mutually again, high-speed stirring forms the emulsion liquid membrane of putting forward golden usefulness; And wherein thinner is a sulfonated kerosene, and it is the main body of film phase liquid, has certain viscosity, keeps the required physical strength of film forming, in case the breaking of film: flowing carrier is a n-octyl amine, and its effect is to the Au in the gold-containing solution (CN)
2 -Carry out selective migration; Tensio-active agent is a mono butonediimide, and it can align on phase interface, is used for stabilizing membrane shape, strengthens Film strength, the fixed oil water interface; The film toughener is a whiteruss, and it can improve the viscosity of film phase solution, strengthens the stability of liquid film; Properties-correcting agent is methyl trioctylphosphine ammonia chloride, it can make this emulsion liquid membrane under the meta-alkalescence condition to gold-containing solution in the extraction yield of gold improve greatly, and promote the stability of film; Interior phase reverse-extraction agent is the 1%NaOH aqueous solution, and its effect is with the membrane flow carrier and contains Au (CN) in the golden molten film
2 -The binding substances that forms is by reverse-extraction agent and stay interior phase, and this process makes the content of the gold in the gold-containing solution constantly reduce continuously, simultaneously in gold content in mutually constantly increase, contain the purpose that golden enrichment is extracted in the golden liquid thereby reach;
Emulsion liquid membrane is put forward golden process as shown in Figure 2, and wherein A is that flowing carrier, C are that strippant, E are the decomplexing product for gold with carrier conjugates, D for containing golden liquid, B.
Gold is with Au (CN) in the gold-containing solution of gold mine
2Form exists, and the Au among the gold-containing solution A (CN)
2 -Form binding substances C at emulsion liquid membrane laminar surface and flowing carrier B, and the reaction by emulsion liquid membrane phase outside surface and reverse-extraction agent D in reverse-extraction agent under the effect of flowing carrier B, flowing carrier B and Au (CN)
2Binding substances C dissociated, flowing carrier B obtains reduction and turns back to the emulsion liquid membrane surface.Proceed Au (CN)
2Running, and Au (CN)
2Generate decomplexing product E and stay interior phase with the interior D of reverse-extraction agent mutually reaction, this process makes the gold content in the gold-containing solution constantly reduce continuously, and the Gold Content in mutually constantly increases simultaneously, makes that putting forward golden rate improves greatly.
Emulsion liquid membrane layer formula of the present invention:
Material name volume percent (%)
Sulfonated kerosene 83-85
N-octyl amine 8-10
Mono butonediimide 3-5
Whiteruss 1-2
Methyl trioctylphosphine ammonia chloride 1-4
The invention has the advantages that: can carry out the extraction of gold under alkaline condition, its selectivity for gold is good, and the emulsion stability performance is good, helps improving the extraction yield of gold, helps emulsion liquid membrane and further uses in gold industry, and is practical.
Description of drawings:
Fig. 1 is the composition synoptic diagram of emulsion liquid membrane of the present invention;
Fig. 2 carries golden process synoptic diagram for emulsion liquid membrane of the present invention.
Embodiment:
Embodiment 1
Material name volume percent (%)
Sulfonated kerosene 83
N-octyl amine 8
Mono butonediimide 5
Whiteruss 2
Methyl trioctylphosphine ammonia chloride 2
To carry gold with interior reverse-extraction agent mutually by mixing in 1: 1 and high-speed stirring formation by the emulsion rete that said ratio is made and use emulsion liquid membrane, interior phase reverse-extraction agent is the 1%NaOH aqueous solution;
Before carrying gold at every turn, at first add acid and adjust the pH value of gold-containing solution 7-10,1: 5 ratio according to emulsion liquid membrane reagent and gold-containing solution slowly adds emulsion liquid membrane and stirring then, its stirring velocity is 200rpm, emulsion is evenly distributed, extraction time gold through 10 minutes promptly can enter interior phase, and experimental result sees Table 1
Liquid film prescription of the present invention is carried golden contrast and experiment table 1
| The experimental liquid pH value | 7 | 8 | 9 | 10 |
| Common liquid membrane extraction of gold rate (%) | 94.74 | 92.52 | 37.15 | |
| The golden rate (%) of carrying of liquid film prescription of the present invention | 93.8 | 91.2 | 85.4 | 74.5 |
Under alkalescence high pH value=7-10 conditions put forward golden rate test-results relatively with interior reverse-extraction agent mutually at emulsion liquid membrane that forms under the high-speed stirring condition and common liquid film with the emulsification liquid layer that the prescription of embodiment 1 is made, it is remarkable that the emulsion liquid membrane of the present invention's prescription is put forward golden effect, can obtain to stablize effective liquid film to the gold in the gold-containing solution and extract under the PH=10 condition.
Embodiment 2:
Take off the row proportioning raw materials and make the emulsion rete:
Material name volume percent (%)
Sulfonated kerosene 85
N-octyl amine 10
Mono butonediimide 3
Whiteruss 1
Methyl trioctylphosphine ammonia chloride 1
To carry gold with interior reverse-extraction agent mutually by mixing in 1: 1 and high-speed stirring formation by the emulsion rete that the above-mentioned raw materials proportioning is made and use emulsion liquid membrane, interior phase reverse-extraction agent is the 1%NaOH aqueous solution;
Before carrying gold at every turn, the pH value that at first adds acid adjustment gold-containing solution is 9, slowly add according to emulsion liquid membrane and 1: 5 ratio of gold-containing solution then and stir, its stirring velocity is 230rpm, emulsion is evenly distributed, the extraction time of gold is 15 minutes, and gold promptly can enter interior phase, and experimental result sees Table 2
Extract experiment analysis results table 2
Above-mentioned experiment is to utilize the emulsion liquid membrane of the proportioning of embodiment 2 making under the condition of the high PH=9 of alkalescence, in the laboratory golden stoste is put forward in autogamy and proposed the gold test, its result compares, and emulsion liquid membrane of the present invention can be put forward golden rate under pH value is 9 situation still very high.
Embodiment 3:
Take off the row proportioning raw materials and make the emulsion rete:
Material name volume percent (%)
Sulfonated kerosene 84
N-octyl amine 7
Mono butonediimide 4
Whiteruss 2
Methyl trioctylphosphine ammonia chloride 3
To mix the emulsion liquid membrane that golden usefulness is put forward in also high-speed stirring formation with interior reverse-extraction agent mutually by 1: 1 by the emulsion rete that the above-mentioned raw materials proportioning is made, interior phase reverse-extraction agent is the 1%NaOH aqueous solution;
Before carrying gold at every turn, at first add acid and adjust the pH value of gold-containing solution 6-10, slowly add according to 1: 5 ratio of emulsion liquid membrane reagent and gold-containing solution then and stir, its stirring velocity is 250rpm, emulsion is evenly distributed, contain golden liquid and promptly can enter interior phase, put forward golden experiment analysis results and see Table 3 through 20 minutes extraction time gold
Carry golden experiment analysis results table 3
By above-mentioned test-results as can be seen, the emulsion liquid membrane that uses the prescription of the embodiment of the invention 3 to make can carry out effective extraction of gold to the gold-containing solution of gold mine under overbasic condition, even is that the extraction yield of gold is still very high under 10 the situation at pH value.
Claims (4)
1, a kind of emulsion liquid membrane that is used to carry gold is characterized in that it is made up of with interior reverse-extraction agent mutually liquid film layer, and wherein liquid film layer is made up of thinner, flowing carrier, tensio-active agent, film toughener, properties-correcting agent.
2, according to claims 1 described a kind of emulsion liquid membrane that is used to carry gold, it is characterized in that the thinner in the said liquid film layer is a sulfonated kerosene, flowing carrier is a n-octyl amine, and tensio-active agent is a mono butonediimide, film liquid toughener is a whiteruss, and properties-correcting agent is methyl trioctylphosphine ammonia chloride.
3, according to claims 1 described a kind of emulsion liquid membrane that is used to carry gold, it is characterized in that said interior phase reverse-extraction agent is the 1%NaOH aqueous solution.
4, according to claims 1 described a kind of emulsion liquid membrane that is used to carry gold, it is characterized in that the prescription of said liquid film layer is as follows:
Material name volume percent (%)
Sulfonated kerosene 83-85
N-octyl amine 8-10
Mono butonediimide 3-5
Whiteruss 1-2
Methyl trioctylphosphine ammonia chloride 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100512894A CN101386916A (en) | 2008-10-20 | 2008-10-20 | Emulsion liquid membrane for gold extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100512894A CN101386916A (en) | 2008-10-20 | 2008-10-20 | Emulsion liquid membrane for gold extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101386916A true CN101386916A (en) | 2009-03-18 |
Family
ID=40476586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100512894A Pending CN101386916A (en) | 2008-10-20 | 2008-10-20 | Emulsion liquid membrane for gold extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101386916A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962718A (en) * | 2010-09-16 | 2011-02-02 | 长春黄金研究院 | Liquid film for extracting gold from alkaline solution |
| CN102627345A (en) * | 2012-03-27 | 2012-08-08 | 武汉科梦环境工程有限公司 | Emulsion liquid film agent for treating ammonia nitrogen wastewater with middle and low concentration and method for treating wastewater |
| CN104058541A (en) * | 2014-07-15 | 2014-09-24 | 潍坊滨海石油化工有限公司 | Method for treating waste water produced in production of EDTA (ethylene diamine tetraacetic acid) |
| CN104831068A (en) * | 2015-05-05 | 2015-08-12 | 大连理工大学 | Emulsion membrane for separating calcium and magnesium ions |
| CN114134338A (en) * | 2021-12-15 | 2022-03-04 | 南开大学 | Application of emulsion liquid membrane with double extraction carriers in recovery of gold and silver bimetallic elements in waste circuit boards |
| CN114262795A (en) * | 2021-12-27 | 2022-04-01 | 南开大学 | Water-in-oil emulsion and preparation method and application thereof |
-
2008
- 2008-10-20 CN CNA2008100512894A patent/CN101386916A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962718A (en) * | 2010-09-16 | 2011-02-02 | 长春黄金研究院 | Liquid film for extracting gold from alkaline solution |
| CN102627345A (en) * | 2012-03-27 | 2012-08-08 | 武汉科梦环境工程有限公司 | Emulsion liquid film agent for treating ammonia nitrogen wastewater with middle and low concentration and method for treating wastewater |
| CN104058541A (en) * | 2014-07-15 | 2014-09-24 | 潍坊滨海石油化工有限公司 | Method for treating waste water produced in production of EDTA (ethylene diamine tetraacetic acid) |
| CN104058541B (en) * | 2014-07-15 | 2016-06-08 | 潍坊滨海石油化工有限公司 | A kind of process for producing EDTA produces the method for waste water |
| CN104831068A (en) * | 2015-05-05 | 2015-08-12 | 大连理工大学 | Emulsion membrane for separating calcium and magnesium ions |
| CN114134338A (en) * | 2021-12-15 | 2022-03-04 | 南开大学 | Application of emulsion liquid membrane with double extraction carriers in recovery of gold and silver bimetallic elements in waste circuit boards |
| CN114262795A (en) * | 2021-12-27 | 2022-04-01 | 南开大学 | Water-in-oil emulsion and preparation method and application thereof |
| CN114262795B (en) * | 2021-12-27 | 2023-03-14 | 南开大学 | Water-in-oil type emulsion and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101386916A (en) | Emulsion liquid membrane for gold extraction | |
| Chen et al. | Extraction of rare earth ions from phosphate leach solution using emulsion liquid membrane in concentrated nitric acid medium | |
| CN105063382A (en) | Separation method of La, Ce, Pr and Nd mixed rare earth ions | |
| Rouhani et al. | Separation of molybdenum from spent HDS catalysts using emulsion liquid membrane system | |
| Xie et al. | Leaching process and kinetics of manganese in low-grade manganese ore | |
| Laguel et al. | Removal of Europium (III) from water by emulsion liquid membrane using Cyanex 302 as a carrier | |
| CN101418375A (en) | Liquid membrane extraction of gold-diaphragm electrolysis extraction of gold process | |
| CN1119287C (en) | Complex extraction process for pre-treating waste water for intermediate of sulfornic dyes | |
| CN105268558B (en) | A kind of method of the valuable component comprehensive utilization of the low cuprate complex copper-sulphide ores association of high-sulfur | |
| Ali et al. | Selective separation of tungsten from the model and industrial effluents through supported liquid membrane | |
| CN100392122C (en) | Method for extracting gold (I) from enriched alkaline cyanide gold immersing liquid | |
| CN1142004C (en) | A method for extracting copper from an aqueous solution | |
| CN103966439A (en) | Leachate separation and purification treatment process for recovery of metal rubidium resources from copper sulfur tailings | |
| Manikandan et al. | A review on emulsion liquid membranes on heavy metal separation | |
| CN106222412A (en) | A kind of from containing the method for extracting vanadium vanadium solution | |
| CN108070718B (en) | A kind of method of molybdenum in double-aqueous phase system extraction and separation aqueous solution | |
| CN101962718B (en) | Liquid film for extracting gold from alkaline solution | |
| CN110117034A (en) | A kind of method of Centrifugical extraction high-concentration phenolic wastewater and its recycling | |
| CN110240315A (en) | The method and device thereof that boron processing cycle recycles are removed for guanidine glue fracturing outlet liquid | |
| Wang et al. | Extraction of scandium from red mud using ELM with P204 as carrier | |
| CN105347422B (en) | A kind of method that Cyanide in Cyanide Wastewater is removed using ionic liquid supporting liquid sheet technology | |
| CN106521194B (en) | A kind of extractant and its application method for emulsion liquid membrane extracting rare earth | |
| Chakraborty et al. | Process intensification: extraction of chromium (VI) by emulsion liquid membrane | |
| CN104591104B (en) | A kind of method reclaiming tellurium from low concentration is containing tellurium liquid | |
| Ren et al. | The transport of copper (II) through hollow fiber renewal liquid membrane and hollow fiber supported liquid membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090318 |