CN1034131C - Copper extracting method from mixed copper mine and cupric oxide mine - Google Patents
Copper extracting method from mixed copper mine and cupric oxide mine Download PDFInfo
- Publication number
- CN1034131C CN1034131C CN94111476A CN94111476A CN1034131C CN 1034131 C CN1034131 C CN 1034131C CN 94111476 A CN94111476 A CN 94111476A CN 94111476 A CN94111476 A CN 94111476A CN 1034131 C CN1034131 C CN 1034131C
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- CN
- China
- Prior art keywords
- copper
- ore
- mine
- copper ore
- mixed
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- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a method for processing mixed copper ore and copper oxide ore to extract copper, which is characterized in that the copper ore which is pulverized is mixed with ammonium carbonate, ammonium chloride and ammonium sulfate to be dipped into ammonia water, and finally, a precipitating agent is added into the ammonia water to extract copper oxide. The raw material which is used by the present invention has the advantages of low cost and easy acquisition, and can be circularly used; the operation process is easy to observe and control, the leaching rate of the copper can nearly reach 100%, the energy consumption is less, the environment can not be polluted, the utilization rate of the national copper ore resources is greatly improved, and thus, the present invention has wide development prospect.
Description
The invention belongs to hydrometallurgy, for a kind of mixed copper ore and copper oxide ore handled to extract the method for copper.
Domestic general copper mine all adopts the method for mechanical beneficiation at present.This method is only applicable to the sulphur copper mine, and is not suitable for copper oxide ore.Processing to sulphur copper mine stone can only reach 80% at most.The float glass process ore dressing only is confined to handle single mineral, and is usually powerless to containing the copper oxide ore part in the mixed copper ore.Even to washed ore, its extraction yield also has only 20-25% with the float glass process ore dressing.Because the float glass process ore dressing is to copper oxide ore, or the part of the copper oxide ore after the mixed copper ore ore dressing can't handle, and can not be refined into copper, and a large amount of cupric oxide ores usually is used for filling out the pit." the little experiment of science " (the Shanghai People's Press published in 1971) and " world inventions " magazine have been introduced on the third phase in 1980 and have been handled pickling process and the ammonia leaching process that this class copper mine adopts.Wherein ammonia leaching process is to be soaked in after copper mine stone is pulverized in 3% the ammoniacal liquor, and the solution heating evaporation to generating obtains cupric oxide, further is reduced into copper again.But this method ammoniacal liquor long soaking time, during heating raw material and heat energy consumption too much, easily cause the pollution of environment.
Defective at prior art, purpose of the present invention just provides a kind of novel method of handling mixed copper ore and copper oxide ore, can make full use of not tractable copper mine stone, become and be easy to the reductive cupric oxide, treating processes is to carry out in the closed circulation extraction plant, low cost raw material can reclaim usefulness again, and heat energy consumption is also few, has improved the utilization ratio of state-owned copper ore resource greatly.
The present invention realizes by following technical process:
1. the copper mine stone flour is broken to below 200 orders.2. copper ore powder is mixed with volatile salt ((NH
4)
2CO
3H
2O), ammonium chloride (NH
4Cl), ammonium sulfate ((NH
4)
2SO
4), the weight proportion of copper ore powder and volatile salt is 100: 1～8, and the weight proportion of copper ore powder and ammonium chloride is 100000: 1～4, and the weight proportion of copper ore powder and ammonium sulfate is 100: 1～8, be soaked in then in 5% the ammoniacal liquor, copper ore powder and ammoniacal liquor weight proportion are 1: 1.3. after soaking through 1 hour, generation contains Cu (NH
3)
2 2-And Cu (NH
3)
4 2-Behind the blue look solution of ionic, add precipitation agents such as volatile salt again, the amount that volatile salt is appended in copper bearing grade decision according to copper ore powder makes it to generate rapidly the cupric oxide precipitation, only just finishes a working cycle in 4 hours.4. with carbon copper oxide reduction is become copper.
Processing mixed copper ore provided by the invention and copper oxide ore to be extracting the method for copper, raw materials used cheaply easily purchase, and the immersion treatment process is carried out in the closed circulation extraction plant, and industrial chemicals can recycling use, thereby raw material and heat energy consumption are all lacked.Cu (the NH that blue look is arranged in the production
3)
2 2-And Cu (NH
3)
4 2-Solution indicates, observes control easily.Present method almost reaches 100% to the leaching yield of copper, and foreign metals such as iron, aluminium, silver can not soak dissolving and infiltrate.Do not cause pollution, more do not have SO environment
2Generation.Copper oxide ore and other mixed copper ores that originally can't exploit processing in a large number are fully used, improve the utilization ratio of state-owned mine resources greatly, development prospect is fine.
Embodiment, processing mixed copper ore provided by the invention and copper oxide ore are realized in chemical plant, Ruichang City, Jiangxi Province with the method for extracting copper, originally the copper oxide ore that had been abandoned mine is after present method is handled immersion, but generation purified cupric oxide, extraction rate reached to 62.3%.
Claims (1)
1. handle mixed copper ore and copper oxide ore to extract the method for copper for one kind, copper ore powder after pulverizing is soaked in the ammoniacal liquor, it is characterized in that when copper ore powder soaks, mixing with volatile salt, ammonium chloride and ammonium sulfate, the weight proportion of copper ore powder and volatile salt is 100: 1～8, the weight proportion of copper ore powder and ammonium chloride is 100000: 1～4, the weight proportion of copper ore powder and ammonium sulfate is 100: 1～8, copper ore powder and ammoniacal liquor are that weight proportion is 1: 1, the concentration of soaking ammoniacal liquor is 5%, soak after one hour, add precipitation agents such as volatile salt again, the amount that volatile salt is appended in copper bearing grade decision according to copper ore powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111476A CN1034131C (en) | 1994-10-28 | 1994-10-28 | Copper extracting method from mixed copper mine and cupric oxide mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111476A CN1034131C (en) | 1994-10-28 | 1994-10-28 | Copper extracting method from mixed copper mine and cupric oxide mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1121532A CN1121532A (en) | 1996-05-01 |
| CN1034131C true CN1034131C (en) | 1997-02-26 |
Family
ID=5035343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94111476A Expired - Fee Related CN1034131C (en) | 1994-10-28 | 1994-10-28 | Copper extracting method from mixed copper mine and cupric oxide mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034131C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994747B (en) * | 2011-09-13 | 2014-03-26 | 郴州市金贵银业股份有限公司 | Technology for recovering metallic copper from high-lead copper matte |
| US9175366B2 (en) * | 2013-03-14 | 2015-11-03 | Freeport Minerals Corporation | Systems and methods for improved metal recovery using ammonia leaching |
| US9187803B2 (en) | 2013-03-14 | 2015-11-17 | Freeport Minerals Corporation | Systems and methods for improved metal recovery using ammonia leaching |
| CN103451447A (en) * | 2013-09-02 | 2013-12-18 | 中南大学 | Method for recovering copper and cobalt from high-iron waste water treatment and residue |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084895A (en) * | 1992-09-30 | 1994-04-06 | 武汉市冶炼科研所 | Ammonia dipping precipitation is handled the technology of low-grade copper ashes or copper oxide ore |
-
1994
- 1994-10-28 CN CN94111476A patent/CN1034131C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084895A (en) * | 1992-09-30 | 1994-04-06 | 武汉市冶炼科研所 | Ammonia dipping precipitation is handled the technology of low-grade copper ashes or copper oxide ore |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1121532A (en) | 1996-05-01 |
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