CN103937987A - Gold high-efficiency extraction method - Google Patents
Gold high-efficiency extraction method Download PDFInfo
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- CN103937987A CN103937987A CN201410195983.9A CN201410195983A CN103937987A CN 103937987 A CN103937987 A CN 103937987A CN 201410195983 A CN201410195983 A CN 201410195983A CN 103937987 A CN103937987 A CN 103937987A
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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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Abstract
The invention discloses a gold high-efficiency extraction method which comprises the following steps: a. grinding gold ores; b. stirring and pressing into a block; c. roasting; d. crushing and mixing; e. carrying out chemical extraction; f. carrying out pressure filtration; and g. electrolyzing. The method adopts the solid block gold roasting technique capable of recycling residual gold in waste slag and waste liquid in various sections; the whole extraction technique only needs one production line; the product yield is high; and the amount of residual gold after eliminating the impurities is small.
Description
Technical field
The present invention relates to the field that the production of metal in the processing of metallurgical class alloy or non-ferrous metal or refining wet method are extracted metallic compound and be converted into pure metal from ore or concentrate, espespecially a kind of gold highly effective extraction method.
Background technology
In the process that gold containing material (raw ore of gold mine) refines at gold, need to reject a large amount of impurity, prior art adopts the technology of roasting to realize preliminary removal of impurities, the liquid roasting smelting technique of the many employings of prior art, be extraction and electrolysis in follow-up processing, but gold residual quantity is more in electrolytic slime, need to carry out secondary recovery to electrolytic slime, technique is comparatively complicated, equipment is more, sometimes even needs to arrange multiple workshops.
Summary of the invention
For addressing the above problem, the invention provides a kind of gold highly effective extraction method, what the method adopted is solid block gold containing material roasting technology, gold residual in the waste residue of each workshop section, waste liquid can be carried out to multiple recovery, whole extraction process only needs a production line, product pick-up rate is high, and the contained residual gold of despumation is few.
For achieving the above object, the present invention adopts following technology to realize, a kind of gold highly effective extraction method, and step is as follows:
A. gold mine grinds: the gold mine of acquisition is ground for the first time;
B. stir briquetting: after the gold mine after grinding is added to mixing water, mix with carbon dust, wherein the mass ratio of gold mine and carbon dust is 9:1, mixed material solids concn is 10～30%, mixed material is pressed into rectangular block, and the size of pressure is for being compressed to mixture not spallation automatically of bulk;
C. roasting: the mixture after briquetting is delivered to stoving oven roasting, and maturing temperature and time are the technology of existing gold roasting, the tail gas producing in roasting process is delivered to water wash column and is purified eliminating after bag-type dust;
D. broken mixing: by the mixture fragmentation after roasting, and with workshop section in waste residue mixed grinding, obtain powder material;
E. chemical extraction: using chemical agent to extract powder material, is dynamic defibrination extraction in extraction;
F. press filtration: dynamically the material after defibrination extraction carries out press filtration, and press filtration is sent to settling bowl and is collected, filter residue is sent to the broken workshop section of mixing;
G. electrolysis: filtrate is carried out to electrolysis and obtain gold, electrolysis tech is existing gold electrolysis tech, gained electrolytic slime is sent to the broken workshop section of mixing, and electrolytic solution is also sent to the broken workshop section of mixing, as diluent or damping fluid.
As the further improvement of invention, extraction agent component in described chemical extraction is sodium cyanide, thiocarbamide, three kinds of mixtures of Sulfothiorine, and the content of each component is extracted object mass percent, wherein sodium cyanide 0.01～0.15%, thiocarbamide 0.04～0.2%, Sulfothiorine 0.01～0.3%.
As the further improvement of invention, described grinding plant is ball mill or revolves fluidization autogenous mill.
As the further improvement of invention, described blending water is the combination water that tap water and water wash column are got rid of water.
As the further improvement of invention, the waste residue in described broken mixing in workshop section is residue and the electrolytic slime composition in waste residue, the press filtration in sack cleaner.
The present invention compared with prior art has following beneficial effect:
What 1, the method adopted is solid block gold containing material roasting technology, gold residual in the waste residue of each workshop section, waste liquid can be carried out to multiple recovery, and whole extraction process only needs a production line, and product pick-up rate is high, and the contained residual gold of despumation is few.
Brief description of the drawings
Fig. 1 is a kind of process flow sheet of gold highly effective extraction method.
Embodiment
Embodiment 1
A gold highly effective extraction method as shown in the figure, step is as follows:
A. gold mine grinds: the gold mine of acquisition is ground for the first time;
B. stir briquetting: after the gold mine after grinding is added to mixing water, mix with carbon dust, wherein the mass ratio of gold mine and carbon dust is 9:1, mixed material solids concn is 10%, and mixed material is pressed into rectangular block, and the size of pressure is for being compressed to mixture not spallation automatically of bulk;
C. roasting: the mixture after briquetting is delivered to stoving oven roasting, and maturing temperature and time are the technology of existing gold roasting, the tail gas producing in roasting process is delivered to water wash column and is purified eliminating after bag-type dust;
D. broken mixing: by the mixture fragmentation after roasting, and with workshop section in waste residue mixed grinding, obtain powder material;
E. chemical extraction: using chemical agent to extract powder material, is dynamic defibrination extraction in extraction;
F. press filtration: dynamically the material after defibrination extraction carries out press filtration, and press filtration is sent to settling bowl and is collected, filter residue is sent to the broken workshop section of mixing;
G. electrolysis: filtrate is carried out to electrolysis and obtain gold, electrolysis tech is existing gold electrolysis tech, gained electrolytic slime is sent to the broken workshop section of mixing, and electrolytic solution is also sent to the broken workshop section of mixing, as diluent or damping fluid.
Extraction agent component in described chemical extraction is sodium cyanide, thiocarbamide, three kinds of mixtures of Sulfothiorine, the content of each component is extracted object mass percent, wherein sodium cyanide 0.01%, thiocarbamide 0.04%, Sulfothiorine 0.01%, described grinding plant is ball mill or revolves fluidization autogenous mill, and described blending water is the combination water that tap water and water wash column are got rid of water, and the waste residue in described broken mixing in workshop section is residue and the electrolytic slime composition in waste residue, the press filtration in sack cleaner.
Embodiment 2
A gold highly effective extraction method as shown in the figure, step is as follows:
A. gold mine grinds: the gold mine of acquisition is ground for the first time;
B. stir briquetting: after the gold mine after grinding is added to mixing water, mix with carbon dust, wherein the mass ratio of gold mine and carbon dust is 9:1, mixed material solids concn is 20%, and mixed material is pressed into rectangular block, and the size of pressure is for being compressed to mixture not spallation automatically of bulk;
C. roasting: the mixture after briquetting is delivered to stoving oven roasting, and maturing temperature and time are the technology of existing gold roasting, the tail gas producing in roasting process is delivered to water wash column and is purified eliminating after bag-type dust;
D. broken mixing: by the mixture fragmentation after roasting, and with workshop section in waste residue mixed grinding, obtain powder material;
E. chemical extraction: using chemical agent to extract powder material, is dynamic defibrination extraction in extraction;
F. press filtration: dynamically the material after defibrination extraction carries out press filtration, and press filtration is sent to settling bowl and is collected, filter residue is sent to the broken workshop section of mixing;
G. electrolysis: filtrate is carried out to electrolysis and obtain gold, electrolysis tech is existing gold electrolysis tech, gained electrolytic slime is sent to the broken workshop section of mixing, and electrolytic solution is also sent to the broken workshop section of mixing, as diluent or damping fluid.
Extraction agent component in described chemical extraction is sodium cyanide, thiocarbamide, three kinds of mixtures of Sulfothiorine, the content of each component is extracted object mass percent, wherein sodium cyanide 0.1%, thiocarbamide 0.1%, Sulfothiorine 0.1%, described grinding plant is ball mill or revolves fluidization autogenous mill, and described blending water is the combination water that tap water and water wash column are got rid of water, and the waste residue in described broken mixing in workshop section is residue and the electrolytic slime composition in waste residue, the press filtration in sack cleaner.
Embodiment 3
A gold highly effective extraction method as shown in the figure, step is as follows:
A. gold mine grinds: the gold mine of acquisition is ground for the first time;
B. stir briquetting: after the gold mine after grinding is added to mixing water, mix with carbon dust, wherein the mass ratio of gold mine and carbon dust is 9:1, mixed material solids concn is 30%, and mixed material is pressed into rectangular block, and the size of pressure is for being compressed to mixture not spallation automatically of bulk;
C. roasting: the mixture after briquetting is delivered to stoving oven roasting, and maturing temperature and time are the technology of existing gold roasting, the tail gas producing in roasting process is delivered to water wash column and is purified eliminating after bag-type dust;
D. broken mixing: by the mixture fragmentation after roasting, and with workshop section in waste residue mixed grinding, obtain powder material;
E. chemical extraction: using chemical agent to extract powder material, is dynamic defibrination extraction in extraction;
F. press filtration: dynamically the material after defibrination extraction carries out press filtration, and press filtration is sent to settling bowl and is collected, filter residue is sent to the broken workshop section of mixing;
G. electrolysis: filtrate is carried out to electrolysis and obtain gold, electrolysis tech is existing gold electrolysis tech, gained electrolytic slime is sent to the broken workshop section of mixing, and electrolytic solution is also sent to the broken workshop section of mixing, as diluent or damping fluid.
Extraction agent component in described chemical extraction is sodium cyanide, thiocarbamide, three kinds of mixtures of Sulfothiorine, the content of each component is extracted object mass percent, wherein sodium cyanide 0.15%, thiocarbamide 0.2%, Sulfothiorine 0.3%, described grinding plant is ball mill or revolves fluidization autogenous mill, and described blending water is the combination water that tap water and water wash column are got rid of water, and the waste residue in described broken mixing in workshop section is residue and the electrolytic slime composition in waste residue, the press filtration in sack cleaner.
Claims (5)
1. a gold highly effective extraction method, is characterized in that: step is as follows:
A. gold mine grinds: the gold mine of acquisition is ground for the first time;
B. stir briquetting: after the gold mine after grinding is added to mixing water, mix with carbon dust, wherein the mass ratio of gold mine and carbon dust is 9:1, mixed material solids concn is 10～30%, mixed material is pressed into rectangular block, and the size of pressure is for being compressed to mixture not spallation automatically of bulk;
C. roasting: the mixture after briquetting is delivered to stoving oven roasting, and maturing temperature and time are the technology of existing gold roasting, the tail gas producing in roasting process is delivered to water wash column and is purified eliminating after bag-type dust;
D. broken mixing: by the mixture fragmentation after roasting, and with workshop section in waste residue mixed grinding, obtain powder material;
E. chemical extraction: using chemical agent to extract powder material, is dynamic defibrination extraction in extraction;
F. press filtration: dynamically the material after defibrination extraction carries out press filtration, and press filtration is sent to settling bowl and is collected, filter residue is sent to the broken workshop section of mixing;
G. electrolysis: filtrate is carried out to electrolysis and obtain gold, electrolysis tech is existing gold electrolysis tech, gained electrolytic slime is sent to the broken workshop section of mixing, and electrolytic solution is also sent to the broken workshop section of mixing, as diluent or damping fluid.
2. a kind of gold highly effective extraction method according to claim 1, it is characterized in that: the extraction agent component in described chemical extraction is sodium cyanide, thiocarbamide, three kinds of mixtures of Sulfothiorine, the content of each component is extracted object mass percent, wherein sodium cyanide 0.01～0.15%, thiocarbamide 0.04～0.2%, Sulfothiorine 0.01～0.3%.
3. a kind of gold highly effective extraction method according to claim 1, is characterized in that: described grinding plant is ball mill or revolves fluidization autogenous mill.
4. a kind of gold highly effective extraction method according to claim 1, is characterized in that: described blending water is the combination water that tap water and water wash column are got rid of water.
5. a kind of gold highly effective extraction method according to claim 1, is characterized in that: the waste residue in described broken mixing in workshop section is residue and the electrolytic slime composition in waste residue, the press filtration in sack cleaner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410195983.9A CN103937987A (en) | 2014-05-12 | 2014-05-12 | Gold high-efficiency extraction method |
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| CN201410195983.9A CN103937987A (en) | 2014-05-12 | 2014-05-12 | Gold high-efficiency extraction method |
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| CN103937987A true CN103937987A (en) | 2014-07-23 |
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| CN201410195983.9A Pending CN103937987A (en) | 2014-05-12 | 2014-05-12 | Gold high-efficiency extraction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504906A (en) * | 2020-11-12 | 2021-03-16 | 昆山全亚冠环保科技有限公司 | Analysis and quantification method for total carbon in gold material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5328669A (en) * | 1993-01-26 | 1994-07-12 | South Dakota School Of Mines And Technology | Extraction of precious metals from ores and other precious metal containing materials using halogen salts |
| CN1348998A (en) * | 2000-10-18 | 2002-05-15 | 攀枝花钢铁（集团）公司钢铁研究院 | Metal-base powder lumping method |
| CN1840717A (en) * | 2005-03-30 | 2006-10-04 | 张至德 | Process for producing gold by conglomeration, oxidizing roasting, and sodium cyanide leaching of primary gold ore |
| CN1932052A (en) * | 2006-10-11 | 2007-03-21 | 云南省地质科学研究所 | Integral gold refining kiln oxidizing roasting process for refractory gold ore |
| CN203513760U (en) * | 2013-10-12 | 2014-04-02 | 祥云县黄金工业有限责任公司 | Roasting system for solid state gold concentrate |
-
2014
- 2014-05-12 CN CN201410195983.9A patent/CN103937987A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5328669A (en) * | 1993-01-26 | 1994-07-12 | South Dakota School Of Mines And Technology | Extraction of precious metals from ores and other precious metal containing materials using halogen salts |
| CN1348998A (en) * | 2000-10-18 | 2002-05-15 | 攀枝花钢铁（集团）公司钢铁研究院 | Metal-base powder lumping method |
| CN1840717A (en) * | 2005-03-30 | 2006-10-04 | 张至德 | Process for producing gold by conglomeration, oxidizing roasting, and sodium cyanide leaching of primary gold ore |
| CN1932052A (en) * | 2006-10-11 | 2007-03-21 | 云南省地质科学研究所 | Integral gold refining kiln oxidizing roasting process for refractory gold ore |
| CN203513760U (en) * | 2013-10-12 | 2014-04-02 | 祥云县黄金工业有限责任公司 | Roasting system for solid state gold concentrate |
Non-Patent Citations (1)
| Title |
|---|
| 胡春融等: "黄金选冶技术现状及发展趋势", 《黄金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504906A (en) * | 2020-11-12 | 2021-03-16 | 昆山全亚冠环保科技有限公司 | Analysis and quantification method for total carbon in gold material |
| CN112504906B (en) * | 2020-11-12 | 2022-06-14 | 光洋新材料科技(昆山)有限公司 | Analysis and quantification method for total carbon in gold material |
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Application publication date: 20140723 |