CN103572068A - Method for recovering copper from copper-containing gold-loaded carbon - Google Patents
Method for recovering copper from copper-containing gold-loaded carbon Download PDFInfo
- Publication number
- CN103572068A CN103572068A CN201210273669.9A CN201210273669A CN103572068A CN 103572068 A CN103572068 A CN 103572068A CN 201210273669 A CN201210273669 A CN 201210273669A CN 103572068 A CN103572068 A CN 103572068A
- Authority
- CN
- China
- Prior art keywords
- copper
- loaded carbon
- containing gold
- gold
- acid
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a method for recovering copper from copper-containing gold-loaded carbon. The method provided by the invention is as follows: a Fe<3+>-NO3<->-Cl<->-H<+> solution system is adopted to perform the four steps of decopperizing by selective oxidation, neutralizing a decopperization solution, extracting with a liquid solvent after neutralization, and oxidizing raffinate, adding an acid and returning for decopperization on the copper-containing gold-loaded carbon under acidic conditions. Compared with the prior art, a combined oxidation reagent selective oxidation decopperization technology is adopted against the defects in the prior art, so that copper in the gold-loaded carbon can be effectively recovered without affecting gold in the gold-loaded carbon. The method provided by the invention has the advantages of mature process technology, easiness in industrialization and the like.
Description
Technical field
The present invention relates to the recovery method of copper, relate in particular to the method that reclaims copper from high copper-containing gold-loaded carbon.
Background technology
Gold mineral in gold ore is after Cyanide Leaching, generate water-soluble gold-cyanide complex, by being placed in containing the ore pulp of gold-cyanide complex in the adsorption tank of series connection, contact through stirring fully with granular carbon, most of golden cyanogen complexing ions are adsorbed on gac, just obtain gold loaded carbon, gold loaded carbon reclaims gold after further processing.In the cyanidation gold-extracted production process of copper gold stone, the gold loaded carbon copper content of output is higher.When gold loaded carbon cupric is higher, copper can cause very large difficulty to golden desorb, electrodeposition and smelting.And in the prior art, the research to gold loaded carbon, is only primarily focused in golden recovery mostly.In a small amount of prior art, the comprehensive recovery of copper-containing gold-loaded carbon valuable metal copper is mainly directly resolved copper with acid, desorbed solution precipitation, and precipitation slag is sold copper ore concentrates.Although adopt the direct parsing of acid cupric to carry charcoal, can reclaim copper, this technique has long flow path, reagent consumption is large, copper resolution factor is low and reagent cost high, and especially for low copper containing gold loaded carbon, reclaiming copper does not more have economic worth.
Applicant has applied for the same patent application of autograph in 2010, its technical scheme adopting comprises: after copper-containing gold-loaded carbon adopts hydrogen peroxide as oxygenant selective oxidation decopper(ing), decopper(ing) liquid neutralizing acid, neutralization under acidic conditions, liquid caustic soda precipitation, precipitation slag diluted acid dissolve and lysate solvent extraction five steps.The method has Technology maturation, is easy to the advantages such as industrialization.Yet because hydrogen peroxide effective concentration is low, required dosage is large, can use in traffic developed regions; And, material deficient area undeveloped in traffic, because traffic capacity causes transportation cost too high greatly, therefore, in the urgent need to having new method to substitute hydrogen peroxide oxidation method.
Summary of the invention
The shortcomings such as the present invention mainly overcomes in copper-containing gold-loaded carbon recovery copper process, and the technical process that prior art exists is long, and reagent cost is high, and especially traffic is undeveloped, the deficient area of material, provide a kind of method that reclaims copper from high copper-containing gold-loaded carbon.The inventive method copper comprehensive recovery is high, and whole process gold does not lose.
The present invention adopts following technical scheme:
The method that reclaims copper from copper-containing gold-loaded carbon, comprises the steps:
Step 1, oxidation decopper(ing): under acidic conditions, adopt oxygenant selective oxidation decopper(ing), filter afterwards, filtered liquid is standby, and wherein, described oxygenant is " Fe
3+-NO
3 --Cl
--H
+" system;
Step 2, neutralization: the filtered liquid of step 1 adds lime neutralizing acid, filter after reacting completely, and filtered liquid is standby;
Step 3, extraction: the filtered liquid solvent extraction in step 2, raffinate is standby;
Step 4, oxidation: raffinate in step 3 is utilized to aeration head aeration oxidation, and adding appropriate amount of acid, to return to desorb standby;
In preferred embodiment of the present invention, the oxygenant of described step 1 is a kind of in the combination such as iron trichloride+nitric acid, iron trichloride+hydrochloric acid, iron trichloride+nitric acid+hydrochloric acid, iron nitrate+nitric acid or iron nitrate+hydrochloric acid+nitric acid.
In preferred embodiment of the present invention, Fe in oxygenant
3+concentration is 0～20g/l, NO
3 -concentration 0～40g/l, Cl
-concentration 0～20g/l, H
+concentration 0-0.1g/l.In oxidation decopper(ing) process, the alternative cupric oxide cyanogen compound of this oxidation decopper(ing) agent.Fe
3+concentration can increase and decrease according to copper cyanogen compound concentration in solution.
In preferred embodiment of the present invention, in step 1, be oxidized decopper(ing) temperature 25-95 ℃, temperature is too low, speed of response is slow, in the unit time to free efficiency low, excess Temperature, energy consumption is larger, production cost increases.
In preferred embodiment of the present invention, in step 1, decopper(ing) liquid-solid ratio is 5-20:1.
In preferred embodiment of the present invention, in described step 2, in lime, be 1.0-2.0 with endpoint pH.This step is by the acid neutralization in solution.
In preferred embodiment of the present invention, described extracted organic phase adopts LIX984N+ sulfonated kerosene, and back extraction adopts sulfuric acid.
In preferred embodiment of the present invention, in extracting copper step, organic phase is 10%LIX984N+90% sulfonated kerosene, extraction phase is than O/A=1:1-5, extraction time 1-5 minute, reverse-extraction agent sulfuric acid concentration 150-200g/l, back extraction time 1-3 minute, O/A=1-5:1 is compared in back extraction.
In preferred embodiment of the present invention, in step 4, raffinate adopts aeration aeration 8-24 hour at temperature 20-80 ℃.
From foregoing invention, described, the present invention is directed to the drawback that background technology exists, a kind of method that reclaims copper from copper-containing gold-loaded carbon is provided, and the inventive method, under acidic conditions, adopts combination oxidising agent as oxygenant decopper(ing), its decopper(ing) rate is greater than 95%, this oxidant source is wide, and price is low, and recyclable regenerative utilization, environmentally friendly, copper comprehensive recovery is greater than 90%.In whole process, gold does not lose.The inventive method has Technology maturation, is easy to the advantages such as industrialization.
Accompanying drawing explanation
Fig. 1 is the schema for the treatment of process of the present invention.
Embodiment
The inventive method flow process is referring to Fig. 1
Embodiment 1
Copper-containing gold-loaded carbon Recovering Copper after domestic certain copper gold Cyanide solution of heap leaching charcoal absorption.Copper-containing gold-loaded carbon (Au4.52kg/t, Cu12.85kg/t) 100g, adds combination decopper(ing) medicament iron trichloride+hydrochloric acid, ferric iron 10g/l, hydrochloric acid 30g/l, liquid-solid ratio 5:1, stirring at normal temperature 3 hours, washing and filtering, in gold loaded carbon, gold does not lose, copper decreasing ratio approximately 96.52%.Filtered liquid is used in lime and pH to 1.60, filtration washing.Organic phase 10%LIX984N+90% sulfonated kerosene for filtered wash solution, extraction phase is than O/A=1:1, extraction time 1 minute, reverse-extraction agent sulfuric acid concentration 150g/L, 2 minutes back extraction time, O/A=3:1 is compared in back extraction.Strip liquor reaches the requirement of spreader for electrolytic cathode copper copper sulfate.Electrodeposition obtains cathode copper more afterwards.Whole process gold does not lose, and copper comprehensive recovery is 91.25%.Raffinate utilizes aeration head aeration oxidation, and adding appropriate amount of acid, to return to desorb standby.
Embodiment 2
Copper-containing gold-loaded carbon Recovering Copper after domestic certain copper gold Cyanide solution of heap leaching charcoal absorption.Copper-containing gold-loaded carbon (Au3.98kg/t, Cu6.48kg/t) 100g, adds combination decopper(ing) agent iron nitrate+hydrochloric acid, ferric iron 10g/l, hydrochloric acid 20g/l, liquid-solid ratio 10:1, stirring at normal temperature 2.5 hours, washing and filtering, in gold loaded carbon, gold does not lose, copper decreasing ratio approximately 97.25%.Filtered liquid is used in lime and pH to 2.0, filtration washing.Filtered liquid organic phase 10%LIX984N+90% sulfonated kerosene, extraction phase is than O/A=1:1, extraction time 1 minute, reverse-extraction agent sulfuric acid concentration 150g/L, 2 minutes back extraction time, O/A=3:1 is compared in back extraction.Strip liquor reaches the requirement of spreader for electrolytic cathode copper copper sulfate.Electrodeposition obtains cathode copper more afterwards.Whole process gold does not lose, and copper comprehensive recovery is 93.34%.Raffinate utilizes aeration head aeration oxidation, and adding appropriate amount of acid, to return to desorb standby.
Embodiment 3
Copper-containing gold-loaded carbon Recovering Copper after domestic certain copper gold Cyanide solution of heap leaching charcoal absorption.Copper-containing gold-loaded carbon (Au4.50kg/t, Cu8.65kg/t) 100g, adds combination decopper(ing) reagent " iron nitrate+hydrochloric acid+nitric acid ", wherein, ferric iron 5g/l, hydrochloric acid 10g/l, nitric acid 5g/l, liquid-solid ratio 5:1, stirring at normal temperature 3.0 hours, washing and filtering, in gold loaded carbon, gold does not lose, copper decreasing ratio approximately 97.56%.Filtered liquid is used in lime and pH to 2.0, filtration washing.Filtered liquid organic phase 10%LIX984N+90% sulfonated kerosene, extraction phase is than O/A=1:1, extraction time 1 minute, reverse-extraction agent sulfuric acid concentration 150g/L, 2 minutes back extraction time, O/A=3:1 is compared in back extraction.Strip liquor reaches the requirement of spreader for electrolytic cathode copper copper sulfate.Electrodeposition obtains cathode copper more afterwards.Whole process gold does not lose, and copper comprehensive recovery is 92.84%.Raffinate utilizes aeration head aeration oxidation, and adding appropriate amount of acid, to return to desorb standby.
Above are only a specific embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading protection domain of the present invention.
Claims (9)
1. from copper-containing gold-loaded carbon, reclaim the method for copper, it is characterized in that, comprise the steps:
Step 1, oxidation decopper(ing): under acidic conditions, adopt oxygenant selective oxidation decopper(ing), filter afterwards, filtered liquid is standby, and wherein, described oxygenant is " Fe
3+-NO
3 --Cl
--H
+" system;
Step 2, neutralization: the filtered liquid of step 1 adds lime neutralizing acid, filter after reacting completely, and filtered liquid is standby;
Step 3, extraction: copper is reclaimed in the filtered liquid solvent extraction in step 2, and raffinate is standby;
Step 4, oxidation: raffinate in step 3 is utilized to aeration head aeration oxidation, and adding appropriate amount of acid, to return to desorb standby;
2. according to the method that reclaims copper from copper-containing gold-loaded carbon claimed in claim 1, it is characterized in that: the oxygenant described in step 1 is a kind of in the combination of iron trichloride+nitric acid, iron trichloride+hydrochloric acid, iron trichloride+nitric acid+hydrochloric acid, iron nitrate+nitric acid or iron nitrate+hydrochloric acid+nitric acid.
3. according to the method that reclaims copper from copper-containing gold-loaded carbon claimed in claim 1, it is characterized in that: Fe in combination oxidising agent
3+concentration is 0.5～20g/l, NO
3 -concentration 0～40g/l, Cl
-concentration 0～20g/l, H
+concentration 0-0.1g/l.
4. according to the method that reclaims copper from copper-containing gold-loaded carbon claimed in claim 1, it is characterized in that: in described step 1, oxidation precipitation decopper(ing) temperature is 25-95 ℃, the time is 0.5-5 hour.
5. according to the method that reclaims copper from copper-containing gold-loaded carbon claimed in claim 1, it is characterized in that: in described step 2, in lime, be 1.0-2.0 with endpoint pH.
6. according to the method described in claim 1, it is characterized in that: in step 3, described extracted organic phase adopts LIX984N+ sulfonated kerosene, and back extraction adopts sulfuric acid.
7. according to the method described in claim 1, it is characterized in that: in step 3, in extracting copper, organic phase is 10%LIX984N+90% sulfonated kerosene, extraction phase is than O/A=1:1-5, extraction time 1-5 minute; Reverse-extraction agent sulfuric acid concentration 150-200g/L, O/A=1-5:1 is compared in back extraction, back extraction time 1-3 minute.
8. according to the method that reclaims copper from copper-containing gold-loaded carbon claimed in claim 1, it is characterized in that: in described step 4, adopt aeration head at temperature 25-80 ℃ of aeration 8-24 hour.
9. according to the method that reclaims copper from copper-containing gold-loaded carbon claimed in claim 1, it is characterized in that: after aeration, water sample supplemental acid is returned to decopper(ing) operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210273669.9A CN103572068A (en) | 2012-08-02 | 2012-08-02 | Method for recovering copper from copper-containing gold-loaded carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210273669.9A CN103572068A (en) | 2012-08-02 | 2012-08-02 | Method for recovering copper from copper-containing gold-loaded carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103572068A true CN103572068A (en) | 2014-02-12 |
Family
ID=50044774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210273669.9A Pending CN103572068A (en) | 2012-08-02 | 2012-08-02 | Method for recovering copper from copper-containing gold-loaded carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103572068A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120486A (en) * | 2014-08-01 | 2014-10-29 | 湖南汇博金属材料有限责任公司 | Composite wire separation process and equipment thereof |
| CN104294042A (en) * | 2014-09-02 | 2015-01-21 | 厦门紫金矿冶技术有限公司 | Method for selective removal of copper from high copper gold loaded carbon by ammoniacal cyanide process |
| RU2674272C2 (en) * | 2014-10-29 | 2018-12-06 | Оутотек (Финлэнд) Ой | Method of extracting gold |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999050465A1 (en) * | 1998-03-27 | 1999-10-07 | Golden Kingdom (No.2) Pty Limited | Recovery of precious metals and copper from copper/gold ores using resin technology |
| CN1358581A (en) * | 2001-11-20 | 2002-07-17 | 舒大平 | Harmless treatment and comprehensive utilization method for aluminium electrolytic carbon slag and waste cathode material |
| US20090241735A1 (en) * | 2008-03-27 | 2009-10-01 | Nippon Mining & Metals Co., Ltd. | Process of leaching gold |
| CN101715493A (en) * | 2007-05-18 | 2010-05-26 | 塞瑟尔有限公司 | Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| CN101818247A (en) * | 2010-04-09 | 2010-09-01 | 紫金矿业集团股份有限公司 | Selective heap leaching gold extraction process for gold mine containing copper |
| CN102061383A (en) * | 2010-11-10 | 2011-05-18 | 紫金矿业集团股份有限公司 | Selective copper removing method for high-copper gold loaded carbon |
| CN102399996A (en) * | 2011-11-25 | 2012-04-04 | 东北大学 | Method for purifying and regenerating cyanided gold leaching return water |
| CN102453808A (en) * | 2010-10-19 | 2012-05-16 | 厦门紫金矿冶技术有限公司 | Method for recovering copper from copper-containing gold-loaded carbon |
-
2012
- 2012-08-02 CN CN201210273669.9A patent/CN103572068A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999050465A1 (en) * | 1998-03-27 | 1999-10-07 | Golden Kingdom (No.2) Pty Limited | Recovery of precious metals and copper from copper/gold ores using resin technology |
| CN1358581A (en) * | 2001-11-20 | 2002-07-17 | 舒大平 | Harmless treatment and comprehensive utilization method for aluminium electrolytic carbon slag and waste cathode material |
| CN101715493A (en) * | 2007-05-18 | 2010-05-26 | 塞瑟尔有限公司 | Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| US20090241735A1 (en) * | 2008-03-27 | 2009-10-01 | Nippon Mining & Metals Co., Ltd. | Process of leaching gold |
| CN101818247A (en) * | 2010-04-09 | 2010-09-01 | 紫金矿业集团股份有限公司 | Selective heap leaching gold extraction process for gold mine containing copper |
| CN102453808A (en) * | 2010-10-19 | 2012-05-16 | 厦门紫金矿冶技术有限公司 | Method for recovering copper from copper-containing gold-loaded carbon |
| CN102061383A (en) * | 2010-11-10 | 2011-05-18 | 紫金矿业集团股份有限公司 | Selective copper removing method for high-copper gold loaded carbon |
| CN102399996A (en) * | 2011-11-25 | 2012-04-04 | 东北大学 | Method for purifying and regenerating cyanided gold leaching return water |
Non-Patent Citations (2)
| Title |
|---|
| 路叶: "从铜精矿中浸出金时金属氰化物成分的作用", 《矿业快报》 * |
| 陈淑萍等: "高铜载金炭脱铜试验研究", 《黄金》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120486A (en) * | 2014-08-01 | 2014-10-29 | 湖南汇博金属材料有限责任公司 | Composite wire separation process and equipment thereof |
| CN104294042A (en) * | 2014-09-02 | 2015-01-21 | 厦门紫金矿冶技术有限公司 | Method for selective removal of copper from high copper gold loaded carbon by ammoniacal cyanide process |
| CN104294042B (en) * | 2014-09-02 | 2016-09-21 | 厦门紫金矿冶技术有限公司 | A kind of ammonia cyanogen method selectivity is from the method for high-copper gold loaded carbon decopper(ing) |
| RU2674272C2 (en) * | 2014-10-29 | 2018-12-06 | Оутотек (Финлэнд) Ой | Method of extracting gold |
| US10669608B2 (en) | 2014-10-29 | 2020-06-02 | Outotec (Finland) Oy | Process for recovering gold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102212697B (en) | Tungsten slag treatment method | |
| CN110255845B (en) | Resource utilization method of sludge pyrolytic biochar | |
| CN110055537A (en) | A kind of method for reclaiming of PCB nitric acid spent solder stripper | |
| CN103540756B (en) | A kind of method processing waste and old neodymium iron boron material dissolution rare earth | |
| CN103014350B (en) | Recycling method of zinc hypoxide | |
| CN102071319B (en) | Method for preparing high-purity silver from silver-containing waste liquid | |
| CN102676814B (en) | Method for removing impurity ferrum in nickel sulfate solution | |
| CN105018725A (en) | Gold leaching solution and method for recycling gold | |
| CN111004926A (en) | Method for extracting nickel and cobalt from low-grade laterite-nickel ore leaching solution by resin | |
| CN102660687A (en) | Method for recycling heavy metal resources of stainless steel pickling waste water neutralization sludge | |
| CN103966446A (en) | Method for separating and recovering copper, nickel and iron from electroplating sludge | |
| CN103991924B (en) | A kind of regeneration of ion-exchange resin method for the treatment of electrolytic manganese production technique tail end wastewater | |
| CN105174556A (en) | High-acidity high-iron heavy metal wastewater quality-divided resource recycling method | |
| CN104388711A (en) | Method for recovering rare earth by leaching rare earth oxide molten slag | |
| CN101289703A (en) | Process for extracting vanadium form oxygen tension pickle liquor of high ferro vanadium-containing stone coal | |
| CN103572068A (en) | Method for recovering copper from copper-containing gold-loaded carbon | |
| CN103320624B (en) | Method for selectively extracting gold and silver from copper anode slime | |
| CN106542506A (en) | A kind of method that selenium is reclaimed from heavy tellurium waste liquid | |
| CN112813268B (en) | PCB (printed circuit board) copper electroplating and acid etching copper resource recycling method | |
| CN103087231A (en) | Salicyhydroximic acid type chelate resin and preparation method thereof | |
| CN105152433A (en) | Method for removing COD (chemical oxygen demand) from copper/molybdenum extraction raffinate mixed wastewater | |
| CN204675914U (en) | A kind of processing equipment for recycling of brown oxide waste liquid | |
| CN104109762B (en) | Environment-friendly nontoxic gold extractant, and preparation method and gold extraction method thereof | |
| CN114941076B (en) | Method for extracting and recovering gold from aqueous solution | |
| CN108950232B (en) | Method for green recovery of palladium from palladium-containing waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |