CN101235442B - Copper extracting smelting technique for copper ore dressing tailings - Google Patents
Copper extracting smelting technique for copper ore dressing tailings Download PDFInfo
- Publication number
- CN101235442B CN101235442B CN2007100776385A CN200710077638A CN101235442B CN 101235442 B CN101235442 B CN 101235442B CN 2007100776385 A CN2007100776385 A CN 2007100776385A CN 200710077638 A CN200710077638 A CN 200710077638A CN 101235442 B CN101235442 B CN 101235442B
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- China
- Prior art keywords
- copper
- tailings
- acid
- sulfuric acid
- consumption
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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 invention provides a new technique for abstracting copper and smelting from copper concentration tailings, which comprises: adopting gypsum and sulphuric acid to evenly mix and granulate the tailings, ripening, drying, then, putting into a groove, adding dilute acid or industrial water to dip for many times until the tailings have no colors. The method has the advantages of simple technique, short reaction time, convenient operation, rational reagent consumption and little impurity content in solution which is leached, iron is correspondingly restrained, and the solution is clear, which is convenient for further electrowinning and abstracting the copper.
Description
Technical field:
The present invention relates to after copper smelting converter slag selects copper new process for extracting copper the tailings.
Background technology:
In flash smelting converter slag ore dressing tailings, cupric is about 0.5%, and wherein about 50% is sour molten copper, because the tailings cupric is low, it is uneconomical greatly to adopt stirring technique to propose the copper power consumption, and tailings-325 purpose fine powder material accounts for more than 70%, water permeable ability difference and can't realize dump leaching or drill traverse.
Summary of the invention:
Purpose of the present invention just provides a kind of copper extracting smelting technique for copper ore dressing tailings.
Purpose of the present invention can realize by following scheme:
Adopt gypsum and sulfuric acid that tailings is mixed thoroughly granulation, after slaking is dried, put into groove and add diluted acid or service water and soak for several times till colourless, the solution that is soaked out can be used as next step extraction electrodeposition and carries copper.
Described gypsum can form porous slaking slag in pelletization, its maximum particle diameter can be about 7cm and can not be influenced the leaching yield of copper, and the gypsum consumption is the 0.5-3% of tailings weight.
Used sulfuric acid is 1: 4 high-concentration sulfuric acid, and consumption is the 1-3% of tailings weight.
In immersion process, can adopt repeatedly immersion way, be generally 2 to 3 times, till colourless.Used diluted acid can be by the preparation of water and concentrated acid, and its manner of formulation is 24ml1: 4 high-concentration sulfuric acid adds the preparation of 120-240 premium on currency, when soaking at every turn the consumption of diluted acid be tailings weight 400-600 doubly.
The present invention has that technology is simple, the reaction times short, easy to operate, reagent consumption is reasonable, the solution that is leached is impure few, iron obtains corresponding inhibition, solution is limpid, is convenient to next step extraction electrodeposition and carries copper.
Embodiment 1:
Tailings 240kg, gypsum 7.2kg adds the 4800ml concentrated acid, 24kg water (being made into the 400g/l concentrated acid) is granulated, dried 11 days, and then the particle of making was put into groove and soak, when soaking first, add 120 premium on currency and 240ml concentrated acid, soak time is 5-10 hour, when soaking for the second time, adds 120 premium on currency and 240ml concentrated acid, soak time 5-10 hour, merge twice leach liquor and get final product.
Embodiment 2:
Tailings 1000kg, gypsum 30kg adds 20000ml concentrated acid 100kg water (being made into the 360g/l concentrated acid) and granulates, and dries 7 days, then the particle of making is put into groove and soaks, and soaks first to add 400 premium on currency and 400ml concentrated acid, soaks tapping in 3.5 hours; Immersion for the second time adds 330 premium on currency and 300ml concentrated acid, soaks tapping in 3.5 hours; Immersion for the third time adds 300 premium on currency and 300ml concentrated acid, soaks tapping in 19 hours, merges three leach liquors and gets final product.
Claims (1)
1. copper ore dressing tailings copper extracting smelting technology, it is characterized in that adopting gypsum and sulfuric acid that tailings is mixed thoroughly granulation, after slaking is dried, putting into groove adds diluted acid or service water and soaks for several times till colourless, the solution that is soaked out is carried copper as next step extraction electrodeposition, described gypsum consumption is the 0.5-3% of tailings weight, used sulfuric acid is 1: 4 high-concentration sulfuric acid, consumption is the 1-3% of tailings weight, used diluted acid is by water and concentrated acid preparation, its manner of formulation is 24ml1: 4 high-concentration sulfuric acid adds 120-240 premium on currency preparation, when soaking at every turn the consumption of diluted acid be tailings weight 400-600 doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100776385A CN101235442B (en) | 2007-01-31 | 2007-01-31 | Copper extracting smelting technique for copper ore dressing tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100776385A CN101235442B (en) | 2007-01-31 | 2007-01-31 | Copper extracting smelting technique for copper ore dressing tailings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101235442A CN101235442A (en) | 2008-08-06 |
| CN101235442B true CN101235442B (en) | 2010-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100776385A Expired - Fee Related CN101235442B (en) | 2007-01-31 | 2007-01-31 | Copper extracting smelting technique for copper ore dressing tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101235442B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798626A (en) * | 2010-04-19 | 2010-08-11 | 祝军 | Method for extracting copper through copper scales |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6342189B1 (en) * | 1999-06-17 | 2002-01-29 | Boliden Mineral, Ab | Method for total precipitation of valuable metals from an acid leaching solution |
| CN1465724A (en) * | 2002-10-31 | 2004-01-07 | 云南铜业科技发展股份有限公司 | Wet method copper-extracting process |
| CN1875120A (en) * | 2003-11-03 | 2006-12-06 | 奥克斯安娜有限公司 | Leach extraction method |
-
2007
- 2007-01-31 CN CN2007100776385A patent/CN101235442B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6342189B1 (en) * | 1999-06-17 | 2002-01-29 | Boliden Mineral, Ab | Method for total precipitation of valuable metals from an acid leaching solution |
| CN1465724A (en) * | 2002-10-31 | 2004-01-07 | 云南铜业科技发展股份有限公司 | Wet method copper-extracting process |
| CN1875120A (en) * | 2003-11-03 | 2006-12-06 | 奥克斯安娜有限公司 | Leach extraction method |
Non-Patent Citations (1)
| Title |
|---|
| CN 1465724 A,全文. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101235442A (en) | 2008-08-06 |
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Granted publication date: 20101103 Termination date: 20140131 |