CN102071324A - Process for extracting gold from high-grade gold concentrate - Google Patents
Process for extracting gold from high-grade gold concentrate Download PDFInfo
- Publication number
- CN102071324A CN102071324A CN2011100325620A CN201110032562A CN102071324A CN 102071324 A CN102071324 A CN 102071324A CN 2011100325620 A CN2011100325620 A CN 2011100325620A CN 201110032562 A CN201110032562 A CN 201110032562A CN 102071324 A CN102071324 A CN 102071324A
- Authority
- CN
- China
- Prior art keywords
- gold
- hydrochloric acid
- grade
- technology according
- reaction
- 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.)
- Granted
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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a process for extracting gold from high-grade gold concentrate, which comprises the following steps that: the high-grade gold concentrate is soaked into hydrochloric acid, oxyful is added for controlling the electric potential between 450mv and 1000mv, filtering and cleaning are carried out after the reaction, filter residue is baked, and alloy gold is obtained through melting pouring. Compared with the prior art, the process disclosed by the invention is a fire-new process and also has the advantages that the environment protection is greatly reduced, the mercury poison harm is eliminated, the body and metal health of workers is ensured, meanwhile, the direct yield of the gold metal is high, and the direct yield of the gold metal reaches more than 97 percent through being proved by industrial tests.
Description
Technical field
The invention belongs to the mine and select the smelting field, relate to a kind of higher-grade gold ore, impurity is dispeled, and eliminates the harm of mercury poison, extracts the method for gold containing material.
Background technology
The at present domestic main method of extracting gold containing material from the higher-grade gold ore is an amalgam process, this method is a kind of traditional gold extraction technology, gold direct yield and impurity-eliminating effect are all more satisfactory, production technique is first with golden enrichment in the ore for methods such as employing gravity treatments, adding mercury metal then mixes with gold ore and obtains calomel, calomel roasting output cake of gold, product was a gold containing material after the cake of gold melting was purified, but in this technology amalgamate and the calomel roasting process, because the diffustivity that mercury is extremely strong and fat-soluble, enter alveolar by the human respiratory tract easily, to the human body cerebral tissue, kidney, endocrine system, blood circulation produces harm, operation in this environment for a long time causes the mercury poisoning occupational illness easily.
Summary of the invention
The objective of the invention is at the higher-grade gold ore, propose a kind of both environmental protection, metal direct yield height, social, good in economic efficiency, and industrial truly feasible acidleach---the gold extraction technology of removal of impurities from the higher-grade gold ore.
The objective of the invention is to realize by following manner:
A kind of technology of from the higher-grade gold ore, carrying gold: the higher-grade gold ore is immersed in the hydrochloric acid soln, adds hydrogen peroxide and make control of Electric potentials, preferred 480-520mv at 450～1000mv; Reaction after-filtration, cleaning, filter residue oven dry, melting are sprinkled the Zhu and are obtained gold containing material.
Described higher-grade gold ore contains gold and is not less than 35%, contains antimony and is not higher than 2.0%, and tungstenic is not higher than 15.0%, leadedly is not higher than 3.0%, and cupric is not higher than 3.0%.
The volume ratio in described hydrochloric acid and ore deposit is not less than 1, preferred ratio 2-5, hydrochloric acid mass concentration 1%～37%, preferred 20-30%.
40 ℃～100 ℃ of described temperature of reaction, preferred 60-80 ℃; Reaction times was not less than 0.5 hour, preferred 3-7 hour.
Described being reflected in the whipping process carried out, and stirring velocity is 300～2000 rev/mins, preferred 800～1500 rev/mins.
Described cleaning process is: the hydrochloric acid of mass concentration 1%～37% cleans 1 time, and 40 ℃～100 ℃ hot water clean 2 times.
The Zhu process is sprinkled in described melting: the filter residue fusion, borax slag making then, slagging-off back gold ore are sprinkled the Zhu, shrend obtains the gold containing material product.
The present invention has obtained the checking of test and suitability for industrialized production, and it possesses following advantage:
1) the present invention is an a kind of brand-new technology of carrying gold from the higher-grade gold ore, its principle is: by control solution potential, the maintenance solution temperature substantially constant of heating, the hydrochloric acid acidleach makes antimony, the lead in the base metal salt mineral such as antimony, lead enter liquid phase, by solid---and the liquid separation reaches gold and the isolating purpose of base metal.
2) owing to do not adopt amalgamate, calomel roasting operation, greatly reduce environmental pollution, eliminated the harm of mercury poison, ensured workman's physical and mental health;
3) Jin total direct yield height can reach more than 97%;
4) the resulting gold containing material product of technology of the present invention gold grade height can reach more than 95%.
Description of drawings
Fig. 1 is amalgamate, calomel roasting gold extracting process flow sheet:
Fig. 2 is a concrete process flow sheet of the present invention:
" removal of impurities concentrate " among Fig. 2 is " filter residue "
Embodiment
Following embodiment is intended to illustrate the present invention rather than limitation of the invention further.The present invention can implement with the described any way of summary of the invention.
Embodiment 1:
To contain Au60.48%, Sb1.40%, WO
37.0%, Pb1.51%, the gold ore of Cu0.72% takes by weighing 1145g, adds mass concentration 20% aqueous hydrochloric acid 2000g, adds the pure hydrogen peroxide control of top grade solution potential at 490～510mv, and 60 ℃～70 ℃ of temperature were reacted 4 hours.Filter then, the hydrochloric acid of mass concentration 20%～30% cleans 1 time, and 75 ℃～90 ℃ hot water clean 2 times.The oven dry filter residue, baking is to there not being moisture, the heavy 920g of slag, gold, antimony, tungsten, lead, copper grade are respectively in the analysis slag: 75.27%, 0.03%, 0.7%, 0.032%, 0.021%, impurity antimony, tungsten, lead, copper leaching rate are respectively: 98.28%, 91.97%, 98.30,97.66%, the filter residue melting obtains gold containing material 704.90g after sprinkling the Zhu, and gold grade is in the analysis gold containing material: 95.62%, and direct yield 97.33%.
Embodiment 2:
To contain Au55.04%, Sb1.62%, WO
311.03%, Pb2.16%, the gold ore of Cu1.53% takes by weighing 2000g, add mass concentration 25% aqueous hydrochloric acid 4000g, add the pure hydrogen peroxide control of top grade solution potential at 500～510mv, 65 ℃～75 ℃ of temperature, reacted 7 hours, filter then, the hydrochloric acid of mass concentration 20%～30% cleans 1 time, and 75 ℃～90 ℃ hot water clean 2 times.The oven dry filter residue, baking is to there not being moisture; The heavy 1617.1g of slag, gold, antimony, tungsten, lead, copper grade are respectively in the analysis slag: 68.07%, 0.034%, 1.10%, 0.064%, 0.057%, impurity antimony, tungsten, lead, copper leaching rate are respectively: 98.30%, 91.94%, 97.60,96.99%, the filter residue melting obtains gold containing material 1171.77g after sprinkling the Zhu, gold grade is in the analysis gold containing material: 96.57%, and direct yield is 97.28%.
Embodiment 3:
With average grade be: Au69.95%, Sb1.22%, WO
36.58%, Pb2.80%, the gold ore 15504.43g of Cu2.45%, add mass concentration 30% hydrochloric acid soln at 3: 1 by liquid-solid ratio, add the pure hydrogen peroxide control of top grade solution potential at 480～490mv, 70 ℃～80 ℃ of temperature, average response 3.5 hours, filter then, the hydrochloric acid of mass concentration 20%～30% cleans 1 time, and 75 ℃～90 ℃ hot water clean 2 times.The oven dry filter residue, baking is to there not being moisture; The heavy 14980.20g of slag, gold, antimony, tungsten, lead, copper grade are respectively 71.34%, 0.028%, 0.61%, 0.079%, 0.08% in the analysis slag, impurity antimony, tungsten, lead, copper leaching rate are respectively: 97.78%, 91.04%, 97.27,96.85%, the filter residue melting obtains gold containing material 10862.37g after sprinkling the Zhu, gold grade is 97.57% in the analysis gold containing material, and direct yield is 97.72%.
Gold containing material product analysis of the present invention the results are shown in Table 1:
Table 1 industrial production gold containing material product analysis result
Can draw gold containing material product of the present invention by table 1 and all reach its relevant criterion.
Claims (10)
1. a technology of carrying gold from the higher-grade gold ore is characterized in that, the higher-grade gold ore is immersed in the hydrochloric acid soln, add hydrogen peroxide and make control of Electric potentials at 450～1000mv, and reaction after-filtration, cleaning, filter residue oven dry, melting are sprinkled the Zhu and are obtained gold containing material.
2. technology according to claim 1 is characterized in that, adds hydrogen peroxide and makes control of Electric potentials at 480～520mv.
3. technology according to claim 1 is characterized in that, described higher-grade gold ore contains gold and is not less than 35%, contains antimony and is not higher than 2.0%, and tungstenic is not higher than 15.0%, leadedly is not higher than 3.0%, and cupric is not higher than 3.0%.
4. technology according to claim 1 is characterized in that the volume ratio in described hydrochloric acid and ore deposit is not less than 1, hydrochloric acid mass concentration 1%～37%.
5. according to claim 1 or 4 described technologies, it is characterized in that the volume ratio 2-5 in described hydrochloric acid and ore deposit, hydrochloric acid mass concentration 20%～30%.
6. technology according to claim 1 is characterized in that, 40 ℃～100 ℃ of described temperature of reaction, and the reaction times was not less than 0.5 hour.
7. according to claim 1 or 6 described technologies, it is characterized in that 60 ℃～80 ℃ of described temperature of reaction, reaction times 3-7 hour.
8. technology according to claim 1 is characterized in that, described being reflected in the whipping process carried out, and stirring velocity is 300～2000 rev/mins.
9. according to claim 1 or 8 described technologies, it is characterized in that described being reflected in the whipping process carried out, stirring velocity is 800～1500 rev/mins.
10. technology according to claim 1 is characterized in that, described cleaning process is to clean with hydrochloric acid and hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100325620A CN102071324B (en) | 2011-01-29 | 2011-01-29 | Process for extracting gold from high-grade gold concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100325620A CN102071324B (en) | 2011-01-29 | 2011-01-29 | Process for extracting gold from high-grade gold concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102071324A true CN102071324A (en) | 2011-05-25 |
| CN102071324B CN102071324B (en) | 2012-11-28 |
Family
ID=44030081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100325620A Active CN102071324B (en) | 2011-01-29 | 2011-01-29 | Process for extracting gold from high-grade gold concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102071324B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925719A (en) * | 2012-03-09 | 2013-02-13 | 湖南有色金属研究院 | Method for deep recovery of antimony from arsenic alkali residue leaching solution by using electric potential control |
| CN104874471A (en) * | 2015-06-09 | 2015-09-02 | 湖南辰州矿业股份有限公司 | Process for beneficiation and separation of low-grade gold, antimony and tungsten coexistence raw ore |
| CN110257627A (en) * | 2019-07-08 | 2019-09-20 | 湖南辰州矿业有限责任公司 | A kind of method that gold sulphide concentrate removes antimony, lead |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958814A (en) * | 2005-12-22 | 2007-05-09 | 湖南辰州矿业有限责任公司 | Method for enriching noble metals from noble antimonial alloy |
| CN101560608A (en) * | 2009-06-02 | 2009-10-21 | 长春黄金研究院 | Nitrogen-free wet-process refining method for gold-bearing materials |
-
2011
- 2011-01-29 CN CN2011100325620A patent/CN102071324B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958814A (en) * | 2005-12-22 | 2007-05-09 | 湖南辰州矿业有限责任公司 | Method for enriching noble metals from noble antimonial alloy |
| CN101560608A (en) * | 2009-06-02 | 2009-10-21 | 长春黄金研究院 | Nitrogen-free wet-process refining method for gold-bearing materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925719A (en) * | 2012-03-09 | 2013-02-13 | 湖南有色金属研究院 | Method for deep recovery of antimony from arsenic alkali residue leaching solution by using electric potential control |
| CN104874471A (en) * | 2015-06-09 | 2015-09-02 | 湖南辰州矿业股份有限公司 | Process for beneficiation and separation of low-grade gold, antimony and tungsten coexistence raw ore |
| CN110257627A (en) * | 2019-07-08 | 2019-09-20 | 湖南辰州矿业有限责任公司 | A kind of method that gold sulphide concentrate removes antimony, lead |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102071324B (en) | 2012-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105420501B (en) | A kind of technique that noble metal is extracted from the earth of positive pole | |
| CN102690955B (en) | Method for comprehensively recycling valuable metals from lead anode slime by oxygen pressure treatment | |
| CN105568003B (en) | The method of niobium is enriched with a kind of mine tailing from Bayan Obo | |
| CN103757421B (en) | The extracting method of rare precious metal in platinum palladium mud | |
| CN102459659A (en) | Method for processing precious metal source materials | |
| CN102168179A (en) | Technology for producing Au and Ag from precious Pb by vacuum distillation | |
| CN102162035A (en) | Vacuum distillation process for extracting silver from silver zinc slag | |
| CN102994771A (en) | Method for extracting palladium sponge from silver electrolysis anode slime parting liquid | |
| CN107586956A (en) | A kind of method of efficiently concentrating rhodium in organic rhodium catalyst waste liquid from failure | |
| CN103468956A (en) | Method for recycling multiple elements in acid mud generated in acid making through gold smelting | |
| CN104878205A (en) | Method for recovering valuable metals in waste circuit boards | |
| CN101985696A (en) | Method for extracting iridium from iridium containing materials | |
| CN106148689B (en) | The method that oxygen presses acidleach efficiently concentrating gold and platinum group metal concentrate | |
| JP6011809B2 (en) | Method for producing gold powder with high bulk density | |
| CN103695636A (en) | Preparation method of electrolytic manganese dioxide | |
| CN102828029A (en) | Method for preliminarily separating valuable metals from copper anode slime | |
| CN104073650B (en) | One reclaims zinc technology from tin metallurgy electric furnace dust | |
| CN107557570A (en) | Method for comprehensively recovering valuable metals from cyanidation tailings | |
| CN102071324B (en) | Process for extracting gold from high-grade gold concentrate | |
| CN104789785A (en) | Method for extracting germanium from germanium-containing smoke dust | |
| CN102061395A (en) | Smelting and separating method of noble lead | |
| CN102703694A (en) | Method for treating low-grade zinc oxide ores by wet method | |
| CN104818396A (en) | Technique for recovering germanium from electric furnace germanium slag | |
| CN106498178B (en) | A kind of recycle carries method golden in bronze charcoal | |
| CN106756085B (en) | A kind of smelting process of platinum concentrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151028 Address after: 419607, Hunan, Huaihua province Yuanling County town of Wo Wo Village Patentee after: Chenzhou Mining Industry Co., Ltd., Hunan Address before: 419607, Huaihua County, Hunan City, Yuanling Province Patentee before: Hu'nan Chenzhou Mining Co., Ltd. |