CN106244825A - Method for improving gold and silver recovery rate in copper smelting system - Google Patents
Method for improving gold and silver recovery rate in copper smelting system Download PDFInfo
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- CN106244825A CN106244825A CN201610632047.9A CN201610632047A CN106244825A CN 106244825 A CN106244825 A CN 106244825A CN 201610632047 A CN201610632047 A CN 201610632047A CN 106244825 A CN106244825 A CN 106244825A
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- Prior art keywords
- gold
- copper
- silver
- copper concentrate
- metallurgy industry
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/02—Obtaining noble metals by dry processes
- C22B11/021—Recovery of noble metals from waste materials
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for improving gold and silver recovery rate in a copper smelting system, and belongs to the technical field of metal smelting tailings recycling. The invention researches around the trend behaviors of main metals and associated rare noble metals in copper-containing raw materials in the existing copper smelting process, improves the recovery rates of noble metals of gold and silver by not influencing the addition of additives of a copper smelting system, enables the recovery rates of the gold and the silver to reach more than 99 percent, is clean and environment-friendly in the whole process, and provides basic materials and data for the establishment and application of subsequent fine management, full production system optimal control and other methods.
Description
Technical field
The invention belongs to the recovery and utilization technology field of metal smelt mine tailing, be specifically related to a kind of raising in copper metallurgy industry
The method of gold and silver recoveries.
Background technology
Along with nonferrous metal price is more and more less with its resource price differential, associated resources utilizes a difficult problem the most unresolved, the most slightly
Put the overlaying influence of formula production and processing mode, cause smelting enterprise's survival pressure increasing.The existing production of cupper smelting
Process produces, utilizes and extract the raising of separation rate mainly around main metallic copper and gold silver noble metal etc., but in production process
The state of the material such as cupric and gold silver, trend understanding the most careful, not deeply, thus become more meticulous in follow-up flow process rebuilding course
Producing and system cost controls all to bring series impact, therefore, non-ferrous smelt enterprise has obtained profit in terms of main intermetallic composite coating
Through extremely difficult, the profit of most enterprises is essentially to the comprehensive utilization of secondary resource in mineral, the rarest dilute expensive
The comprehensive utilization of metal.Using oxygen enriched molten bath copper metallurgy to carry out in copper concentrate processing procedure, gold, silver in copper concentrate, selenium, tellurium,
Rhenium, bismuth, nickel, cobalt, antimony, etc. rare Determination of Rare-Expensive Elements in addition to eventually entering into the earth of positive pole with main metallic copper, also become be randomly distributed
In such as stove settling zone flue dust, blowing district flue dust, converter dust, antacid arsenic-containing waste water, antacid fume treatment process acidity lead mud,
In traditional three waste such as comprehensive primary slag；Therefore, rare dissipated metal comprehensive utilization is the most effectively being carried out
Under overall background, above-mentioned various materials are carried out organic combination and comprehensive utilization, by the Technology of fusion process is changed
Enter, it is achieved to rare rare precious metal, especially efficiently concentrating and the recovery to gold, silver, will be to realize technological innovation to lead development
Effective way with BPR.
Summary of the invention
It is an object of the invention to provide a kind of gold and silver recoveries high, and on copper metallurgy industry without the raising Copper making affected
The method of gold and silver recoveries in system, process cleans environmental protection.
It is an object of the invention to be realized by below scheme: do not affected adding of main system flow process additive by some
Add, improve the response rate of rare rare precious metal in main system.
The present invention improves the method for gold and silver recoveries in copper metallurgy industry, specifically includes following steps:
By copper concentrate, flux and additive with pelletize after weight ratio 7-8:2-3:0.1-0.5 mix homogeneously, control pellet moisture content
Less than 5%, putting in oxygen-enriched air smelting pond and carry out melting, pulverized coal injection in melting pond, front end, melting pond utilizes oxygen-enriched continuous agitation
Melt, after 3-5min reaction fully, releases matte, the content of gold, silver in detection matte；
The composition of above-mentioned copper concentrate is by weight percentage: Cu15%-30%, Fe25%-35%, S28%-32%, Au0.15-20g/
T copper concentrate, Ag15-500g/t copper concentrate.
Flux is in river sand or dearsenization and slag.
Additive is one or more in metallic lead, vulcanized lead, lead oxide, and when mixing is added, mass ratio is 20%-80%:
30%-60%:10%-30%。
The 0.3%-0.5% that winding-up amount is copper concentrate weight of fine coal.
The present invention is centered around the rare rare precious metal of main metal and association in existing copper Steelmaking copper-containing raw material
The behavior of trend is studied, and by not affecting the interpolation of copper metallurgy industry additive, improves the response rate of noble metal gold, silver,
The response rate making gold, silver has all reached more than 99%, and whole technical process clean environment firendly, for subsequent fine ZOOM analysis and full production
The foundation of the methods such as system optimization control and application provide the foundation material and data.
Detailed description of the invention
In order to be more fully understood that the present invention, in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
The composition of copper concentrate is by weight percentage: Cu 22.3%, Fe 29.1%, S31.2%, Au2.6g/t copper concentrate,
Ag52.6g/t copper concentrate.
By copper concentrate, flux river sand and metallic lead to carry out pelletize after weight ratio 7.5:2.5:0.01 mix homogeneously, control
Pellet moisture content is 4.5%, puts in oxygen-enriched air smelting pond and carries out melting, and in melting pond, winding-up is equivalent to copper concentrate weight 0.4%
Fine coal as combustion adjuvant and reducing agent, front end, melting pond utilizes oxygen-enriched continuous agitation melt, after 3min reaction fully, releases
Matte, the content of gold, silver in detection matte.
The response rate of the gold, silver calculated is respectively as follows: Au99.5 %, Ag99.2%.
Embodiment 2
The composition of copper concentrate is by weight percentage: Cu16.8%, Fe26.9%, S31.2%, Au6.5g/t copper concentrate, Ag86.5
G/t copper concentrate.
The flux that copper concentrate, river sand formed with mass ratio 9:1 with neutralization slag and mixing quality are than as 20%:50%:30%
Metallic lead, vulcanized lead, lead oxide mixture to carry out pelletize after weight ratio 7:2.98:0.02 mix homogeneously, control pellet contain
Water rate is 3.5%, puts in oxygen-enriched air smelting pond and carries out melting, and in melting pond, winding-up is equivalent to the fine coal of copper concentrate weight 0.3%
As combustion adjuvant and reducing agent, front end, melting pond utilizes oxygen-enriched continuous agitation melt, after 4.5min reaction fully, releases ice
Copper, the content of gold, silver in detection matte.
The response rate of the gold, silver calculated is respectively as follows: Au99.4%, Ag99.5%.
Embodiment 3
The composition of copper concentrate is by weight percentage: Cu26.5%, Fe27.3%, S29.6%, Au12.6 g/t copper concentrate,
Ag128.5 g/t copper concentrate.
Flux copper concentrate, river sand formed with mass ratio 8.5:1.5 with neutralization slag and mixing quality ratio are as 50%:30%:
The metallic lead of 20%, vulcanized lead, lead oxide mixture to carry out pelletize after weight ratio 7.6:2.36:0.04 mix homogeneously, control
Pellet moisture content is 3%, puts in oxygen-enriched air smelting pond and carries out melting, and in melting pond, winding-up is equivalent to copper concentrate weight 0.5%
Fine coal is as combustion adjuvant and reducing agent, and front end, melting pond utilizes oxygen-enriched continuous agitation melt, after 5min reaction fully, releases ice
Copper, the content of gold, silver in detection matte.
The response rate of the gold, silver calculated is respectively as follows: Au99.6%, Ag99.3%.
Claims (5)
1. one kind is improved the method for gold and silver recoveries in copper metallurgy industry, it is characterised in that: specifically include following steps:
By pelletize after copper concentrate, flux and additive mix homogeneously, control pellet moisture content and be less than 5%, put in oxygen-enriched air smelting pond
Carrying out melting, pulverized coal injection in melting pond, front end, melting pond utilizes oxygen-enriched continuous agitation melt, through 3-5min reaction fully
After, release matte, the content of gold, silver in detection matte；
The composition of above-mentioned copper concentrate is by weight percentage: Cu15%-30%, Fe25%-35%, S28%-32%, Au0.15-20g/
T copper concentrate, Ag15-500g/t copper concentrate.
The most according to claim 1 a kind of improve the method for gold and silver recoveries in copper metallurgy industry, it is characterised in that: institute
The weight ratio stating copper concentrate, flux and additive is 7-8:2-3:0.02-0.05.
The most according to claim 1 a kind of improve the method for gold and silver recoveries in copper metallurgy industry, it is characterised in that: institute
Stating flux is in river sand or dearsenization and slag.
The most according to claim 1 a kind of improve the method for gold and silver recoveries in copper metallurgy industry, it is characterised in that: institute
Stating additive is one or more in metallic lead, vulcanized lead, lead oxide, and when mixing is added, mass ratio is 20%-80%:30%-
60%:10%-30%。
The most according to claim 1 a kind of improve the method for gold and silver recoveries in copper metallurgy industry, it is characterised in that: institute
State the 0.3%-0.5% that winding-up amount is copper concentrate weight of fine coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632047.9A CN106244825A (en) | 2016-08-04 | 2016-08-04 | Method for improving gold and silver recovery rate in copper smelting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632047.9A CN106244825A (en) | 2016-08-04 | 2016-08-04 | Method for improving gold and silver recovery rate in copper smelting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106244825A true CN106244825A (en) | 2016-12-21 |
Family
ID=58078557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610632047.9A Pending CN106244825A (en) | 2016-08-04 | 2016-08-04 | Method for improving gold and silver recovery rate in copper smelting system |
Country Status (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3915692A (en) * | 1972-10-28 | 1975-10-28 | Metallgesellschaft Ag | Pyrometallurgical process for the treatment of solids, preferably metallurgical raw materials or intermediates |
| CN1460725A (en) * | 2003-06-03 | 2003-12-10 | 葫芦岛有色金属集团有限公司 | Comprehensive recovery technique of zinc vertical retorting residue |
| CN101857922A (en) * | 2010-07-07 | 2010-10-13 | 莱州方泰金业化工有限公司 | Oxygen-enriched smelting device with double smelting pools |
| CN101892392A (en) * | 2010-08-09 | 2010-11-24 | 莱州方泰金业化工有限公司 | Method for extracting yellow gold from gold extracting residue and complex and unmanageable hard-to-deal electrum |
| CN102181662A (en) * | 2011-04-21 | 2011-09-14 | 北京矿冶研究总院 | Smelting method of low-sulfur copper concentrate |
| CN104593616A (en) * | 2014-12-19 | 2015-05-06 | 昆明理工大学 | Metal sulfide ore all-oxygen negative-energy pyrogenic smelting method |
-
2016
- 2016-08-04 CN CN201610632047.9A patent/CN106244825A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3915692A (en) * | 1972-10-28 | 1975-10-28 | Metallgesellschaft Ag | Pyrometallurgical process for the treatment of solids, preferably metallurgical raw materials or intermediates |
| CN1460725A (en) * | 2003-06-03 | 2003-12-10 | 葫芦岛有色金属集团有限公司 | Comprehensive recovery technique of zinc vertical retorting residue |
| CN101857922A (en) * | 2010-07-07 | 2010-10-13 | 莱州方泰金业化工有限公司 | Oxygen-enriched smelting device with double smelting pools |
| CN101892392A (en) * | 2010-08-09 | 2010-11-24 | 莱州方泰金业化工有限公司 | Method for extracting yellow gold from gold extracting residue and complex and unmanageable hard-to-deal electrum |
| CN102181662A (en) * | 2011-04-21 | 2011-09-14 | 北京矿冶研究总院 | Smelting method of low-sulfur copper concentrate |
| CN104593616A (en) * | 2014-12-19 | 2015-05-06 | 昆明理工大学 | Metal sulfide ore all-oxygen negative-energy pyrogenic smelting method |
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Application publication date: 20161221 |
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