CN100422358C - Bioleaching process of sulfide mineral ore or concentrate or tailing containing alkaline veinstone - Google Patents
Bioleaching process of sulfide mineral ore or concentrate or tailing containing alkaline veinstone Download PDFInfo
- Publication number
- CN100422358C CN100422358C CNB02128833XA CN02128833A CN100422358C CN 100422358 C CN100422358 C CN 100422358C CN B02128833X A CNB02128833X A CN B02128833XA CN 02128833 A CN02128833 A CN 02128833A CN 100422358 C CN100422358 C CN 100422358C
- Authority
- CN
- China
- Prior art keywords
- ore
- concentrate
- leaching
- powder
- mine tailing
- 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.)
- Expired - Fee Related
Links
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)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The present invention relates to a biologic leaching process of sulfide ores or beneficiated ores or tailings containing alkaline veinstone, which comprises the steps that a mixed bacteria bearing water sample containing thiobacillus ferrooxidans, micro spirillum ferrooxidans, etc. is separated and cultivated in a 9K basal culture medium of which the pH value is 1.5 to 2.5; then, desired sulfide ores or the beneficiated ores or the tailings soaked with the alkaline veinstone and pyrite ore powder or pyrite beneficiated ore powder or sulfur powder, etc. which can be oxidized by ore leaching microbes and produce acid are added in common tap water of which the pH value is 1.5 to 2.5 to be adaptively naturalized and cultivated, and the culture is progressively amplified to obtain adaptively naturalized ore leaching bacteria; the sulfide ores or the beneficiated ores or the tailings containing the alkaline veinstone are mixed with the pyrite ore powder or the pyrite beneficiated ore powder or the sulfur powder to build piles or build piles after granulation, high iron liquor containing the bacteria is sprayed or trickled, and the metal is leached out by bacterium containing liquor under natural conditions. The pH value in a leaching process can be automatically controlled, the higher activity of the ore leaching microbes can be guaranteed, the metal leaching out speed and the leaching rate are obviously improved, a leaching cycle is shortened, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of bioleaching technology, particularly contain the sulphide ores ore of basic gangue or the bioleaching process of concentrate or mine tailing.
Background technology
In the biological metallurgy process, keeping the activity of leaching microbacteria is the key problem in technology of bioleaching process, and influences the pH value that one of active key factor of leaching microbacteria is a biological leaching system.Owing to the biology leaching acid consumption of the sulphide ores ore that contains basic gangue or concentrate or mine tailing is big, prior art is to adopt at spray liquid or drip to drench to add the vitriolic method in the liquid and carry out to the control of leaching process pH value, the shortcoming of this method is: it is wayward that leaching process pH value is replenished sulfuric acid by the external world, the leaching microbacteria poor growth, active low, the metal leaching velocity is slow, leaching yield is low, leaching cycle is long, the production cost height, even can't normally carry out biology and leach.In addition, directly add the pH value that sulfuric acid is regulated the leaching system, sulfuric acid consumption is big, the reagent cost height; If build vitriol works, then investment is big, relieving haperacidity expense height.
Summary of the invention
The purpose of this invention is to provide a kind of sulphide ores ore of basic gangue or bioleaching process of concentrate or mine tailing of containing, this bioleaching process is simple, implement easily, do not need additional sulfuric acid, and can keep leaching microbacteria to have greater activity, improve metal leaching velocity and leaching yield, shorten leaching cycle, reduce production costs.
For achieving the above object, the present invention takes following technical scheme:
1, a kind of sulphide ores ore of basic gangue or bioleaching process of concentrate or mine tailing of containing, it comprises:
(1) contains the preparation of bacterium high ferro liquid: will contain thiobacillus ferrooxidant, thiobacillus thiooxidans and the mixed bacterium of the little spirillum of iron protoxide the water sample that carries disease germs and in the pH value is 1.5～2.5 9K basic medium, separates, cultivate, be to add required quilt in 1.5～2.5 the ordinary tap water to soak the sulphide ores ore that contains basic gangue or concentrate or mine tailing and can and produce the pyrite ore powder of acid or sulphur ore powder or SULPHUR POWDER are carried out the adaptability domestication and cultivated in the pH value again by the leaching microbacteria oxidation, amplification culture step by step, obtaining bacteria concentration is 10
6～10
9The ore deposit bacterium is soaked in the adaptability domestication of individual/ml;
(2) contain the sulphide ores ore of basic gangue or concentrate or mine tailing and pyrite ore or sulphur ore powder or SULPHUR POWDER and mix, build heap after building heap or granulation, spray or drip to drench and contain bacterium high ferro liquid leaches metal to contain bacterium liquid under the natural condition.
The present invention has adopted and has contained bacterium high ferro liquid, wherein bacterial classification is from the mixed bacterium water sample that contains thiobacillus ferrooxidant, thiobacillus thiooxidans and the little spirillum of iron protoxide commonly used, this water sample can be taken from the mine acidic mine water, the abandoned mine heap overflows sour water, mine tailing storehouse sour water, this water sample separates, cultivates in the pH value is 1.5～2.5 9K basic medium, and the biological activity of this cultivation bacterium will be for will contain 44.43g/L Fe at 24 hours with interior
2+Solution 100K be oxidized to Fe
3+, reduced sulfur is oxidized to SO
4 2-
For make bacterium adapt to the leaching of sulphide ores ore or sulphide concentrate or mine tailing and leach in the needs of pH value, containing again through the bacterium after the separation and Culture and to be soaked ore and can be by the leaching microbacteria oxidation do the adaptability domestication in the tap water of acidic material pyrite ore or sulphur ore or sulphur and cultivate, and to the ore-leaching bacteria adaptability more than three generations domestication bacterium amplification culture step by step, what needing to obtain contains bacterium high ferro liquid.
Wherein, as the domestication condition, containing by the ore consumption of caustic dip gangue in the tap water is 5%～20%, basic oxide content (total amount) such as calcium magnesium is 2～40% in the ore, the consumption of pyrite ore powder or sulphur ore powder is 5～20%, and wherein the sulphur content of the smart powder of pyrite ore powder or pyrite is 35～45%, and the consumption of sulphur is 1～10%, the sulphur sulphur content is 98～99.5%, and above-mentioned content is weight percentage.The spray flux of soaking bacterium high ferro liquid of described sulphide ores ore or concentrate or mine tailing is 5～25L/ (m
2.h) build the heap surface-area; Pelletizing granularity 5-25mm. after the granulation of described sulphide ores ore or concentrate or mine tailing
Described mixed bacterium is separated, is cultivated in the pH value is 1.5～2.5 9K basic medium, and condition is to contain (NH in 1 liter of culture
4)
2SO
41.5～4.5 grams, KCl 0.05～0.5 gram, K
2HPO
40.1～1.5 grams, MgSO
47H
2O 0.1～1.5 gram, Ca (NO
3)
20.01～0.1 gram, FeSO
47H
2O 11～56 grams, pH value 1.5～2.5, infected water sample access amount 5～50%, 25～35 ℃ of temperature, shaking speed 50-250 rev/min.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1:
The water sample of from the copper mine acidic mine water, gathering that contains thiobacillus ferrooxidant, thiobacillus thiooxidans and the little spirillum of iron protoxide, the pH value of this water sample is 2.3, this water sample separates in the pH value is 1.7～2.0 9K basic medium, cultivates, and its condition is to contain (NH4) in 1 liter of culture
2SO
43.0 gram, KCl 0.1 gram, K
2HPO
40.5 gram, MgSO
47H
2O 0.5 gram, Ca (NO
3)
20.01 gram, FeSO
47H
2O 44.43 grams, pH value 1.85, infected water sample access amount 20%, 30 ℃ of temperature, 150 rev/mins of shaking speed, the biological activity of bacterium is an autotrophic type, obtains the energy with oxidation ferrous iron and reduced sulfur, with CO in the air
2Being carbon source, is nitrogenous source with the ammonium nitrogen; The form of bacterium is shaft-like, bar-shaped; The thalline size is 0.5～1.0 * 1.0～2.0 microns.Subsequently the pH value be add in 1.7～2.0 the ordinary tap water granularity less than 200 orders 95% contain the basic gangue copper sulfide ore (wherein the content of calcite account for the mineral total amount 18.30%), cultivate with the ore-leaching bacteria adaptability domestication that the sulphur ore powder carried out more than 3 generations, in domestication is cultivated, the consumption that contains the copper sulfide ore of basic gangue is 5～20g/100ml water, the consumption of sulphur ore powder is 1～4g/100ml water, S content is 39.2% in the sulphur ore powder, culture condition is that solution medium is an ordinary tap water, the pH value of solution value is 1.7～2.0, temperature 30 ~ C, 150 rev/mins of shaking speed; Afterwards, the ore-leaching bacteria adaptability more than the 3rd generation domestication bacterium is carried out step by step amplification culture to 600m by 50ml
3, culture condition is: the temperature in the amplification culture pond is natural temperature (18 ℃～25 ℃), and inoculum size is 10%～20%, and the air flow quantity of cultivation pools at different levels is 0.06～0.1 liter/minute, the acquisition bacteria concentration is that the ore deposit bacterium is soaked in the adaptability domestication of 109～109/ml.
The vulcanizing copper mine ore that will contain basic gangue is crushed to granularity less than 25mm, with granularity less than 76 microns account for 95%, the sulphur ore powder of sulphur grade 39.2% builds heap after mixing at 100: 20 in proportion.Build stack height 5m, the limit is built the heap limit and is sprayed with the bacterium high ferro liquid that contains that it is good that pH value is 1.5～2.0 amplification culture, and spray flux is 10～20L/ (m
2.h), as leach liquor Cu
2+During ionic concn＞1.5g/L, the extraction operation that enters copper is leached through 240 days circulated sprinklings, and copper leaching rate is more than 85%.
Embodiment 2:
Fetch the acidic mine water of copper cobalt ore, adopt the condition identical to carry out separation and Culture with embodiment 1, the form of the cultivation bacterium that obtains after its separation and Culture is shaft-like, bar-shaped, the thalline size is that 0.5～1.0 * 1.0～2.0 microns, biological activity are autotrophic type, obtain the energy with oxidation ferrous iron and reduced sulfur, with CO in the air
2Be carbon source, with the ammonium nitrogen is nitrogenous source, be to add granularity in 1.7～2.0 the ordinary tap water to be 76 microns and to account for 95% the basic gangue nickelous sulfide cobalt copper mine stone that contains (wherein MgO content is 28.80% in the pH value subsequently, CaO content is 2.5%), cultivate with the ore-leaching bacteria adaptability domestication that the sulphur ore powder carried out more than 3 generations, in domestication is cultivated, the consumption that contains the copper sulfide ore of basic gangue is 2～20g/100ml water, the consumption of sulphur ore powder is 1.5～6g/100ml water, S content is 39.2% in the sulphur ore powder, and culture condition is that solution medium is an ordinary tap water, and the pH value of solution value is 1.7～2.0, temperature 30 ~ C, 150 rev/mins of shaking speed; Afterwards, ore-leaching bacteria adaptability more than the 3rd generation domestication bacterium is carried out amplification culture step by step, and culture condition is that warm arm spread is natural temperature (18 ℃～25 ℃) in the amplification culture pond, and inoculum size is 10%～20%, the air flow quantity of cultivation pools at different levels is 0.06～0.1 liter/minute, and obtaining bacteria concentration is 10
8～10
9The ore deposit bacterium is soaked in the adaptability domestication of/ml.
The nickelous sulfide cobalt copper mine ore reduction that will contain basic gangue is to less than 25m, with granularity less than 76 microns account for 95%, the sulphur ore powder of sulphur grade 39.2% builds heap after mixing at 100: 30 in proportion.Build stack height 5m, the limit is built the heap limit and is sprayed with the bacterium high ferro liquid that contains that it is good that pU value is 1.5～2.0 amplification culture, and spray flux is 10～20L/ (m
2H), Cu in leach liquor
2+During/ionic concn＞1.5g/L, the extraction operation that enters copper, raffinate enters and reclaims nickel, cobalt respectively after precipitation purifies, and leaches through 150 days circulations, and leaching yield is respectively nickel 85%, cobalt 80%, copper more than 70%.
Embodiment 3:
With embodiment 1, the ore that contains basic gangue that is adopted is the flotation tailings of nickelous sulfide cobalt copper mine stone, (wherein MgO content is 29.60%, CaO content is 2.69%), the flotation tailings and the sulphur ore powder (sulphur product .39.2%) that with the bacterium after separating at consumption are 10% nickelous sulfide cobalt copper mine are tamed cultivation, carry out amplification culture step by step afterwards, obtaining bacteria concentration is 10
8～10
9The ore deposit bacterium is soaked in the adaptability domestication of individual/ml.
The nickelous sulfide that will contain basic gangue bores the flotation tailings of copper mine, and granularity accounts for 60～70% less than 76 microns, and (wherein MgO content is 29.60%, CaO content is 2.69%), then with granularity less than 76 microns account for 95%, sulphur grade 39.2% sulphur ore powder carries out granulation after mixing at 100: 30 in proportion, the pelletizing granularity is 8～12mm, heap was built in the pelletizing maintenance in 24-48 hour again, build stack height 5m, drip to drench and leach with the bacterium high ferro liquid that contains that it is good that the pH value is 1.5～2.0 amplification culture afterwards, dripping a pouring amount is 10～20L/ (m
2H), work as Ni
2+, Co
2+, Cu
2+Enter the back operation behind ionic concn＞1.0g/L.Leach through 90 days circulations, the leaching yield of above-mentioned nickel, cobalt, copper is respectively more than 92%, 88% and 78%.
Embodiment 4:
With embodiment 3, used ore is the flotation concentrate that contains the nickelous sulfide cobalt copper mine of basic gangue, granularity accounts for 85～90% less than 76 microns, (MgO content 19.00%, CaO content 1.38%), then with granularity less than 76 microns account for 95%, the sulphur ore powder of sulphur grade 39.2% carries out granulation after mixing at 100: 15 in proportion, the pelletizing granularity is 8～12mm, the pelletizing maintenance was built heap in 24～48 hours again, built the high 5m of being of heap.Build heap and finish the back and drip the pouring leaching with the bacterium high ferro liquid that contains that it is good that pH value is 1.5～2.0 amplification culture, a pouring amount is 10～20L/ (m2h), works as Ni
2+, CO
2+, Cu
2+Enter the back operation behind ionic concn＞1.0g/L.Leach through 120 days circulations, the leaching yield of above-mentioned nickel, cobalt, copper is respectively more than 90%, 85% and 75%.
Embodiment 5:
With embodiment 1, the ore that contains basic gangue that is adopted is a copper sulfide ore, wherein the content of calcite accounts for 18.30% of mineral total amount, is that 10% copper-sulphide ores and 5% SULPHUR POWDER (sulphur grade 99.5%) are tamed cultivation with the bacterium after separating at consumption, carry out amplification culture step by step afterwards, obtaining bacteria concentration is 10
8～10
9The ore deposit bacterium is soaked in the adaptability domestication of individual/ml.
The vulcanizing copper mine ore that will contain basic gangue is crushed to granularity less than 25mm, with sulphur grade 99.5% SULPHUR POWDER 100: 7 in proportion.9 build heap after mixing.Build stack height 5m, build heap finish the back with pH value be 1.5～2.0 amplification culture good contain the pouring of bacterium high ferro drop, a pouring amount is 10～201/ (m
2H), as leach liquor Cu
2+During ionic concn＞1.5g/L, the extraction operation that enters copper is leached through 240 days circulated sprinklings, and copper leaching rate is more than 85%.
Advantage of the present invention is that bioleaching process is simple, implements easily, does not need additional sulfuric acid, leaches The pH value of journey can realize automatic control, can guarantee that leaching microbacteria has greater activity, significantly improves gold Belong to leaching velocity and leaching rate, shorten leaching cycle, reduce production costs.
Claims (4)
1. one kind contains the sulphide ores ore of basic gangue or the bioleaching process of concentrate or mine tailing, it is characterized in that it comprises:
(1) contains the preparation of bacterium high ferro liquid: will contain thiobacillus ferrooxidant, thiobacillus thiooxidans and the mixed bacterium of the little spirillum of iron protoxide the water sample that carries disease germs and in the pH value is 1.5～2.5 9K basic medium, separates, cultivate, be to add required quilt in 1.5～2.5 the ordinary tap water to soak the sulphide ores ore that contains basic gangue or concentrate or mine tailing and can and produce the pyrite ore powder of acid or sulphur ore powder or SULPHUR POWDER are carried out the adaptability domestication and cultivated in the pH value again by the leaching microbacteria oxidation, amplification culture step by step, obtaining bacteria concentration is 10
6～10
9The ore deposit bacterium is soaked in the adaptability domestication of individual/ml;
(2) contain the sulphide ores ore of basic gangue or concentrate or mine tailing and pyrite ore or sulphur ore powder or SULPHUR POWDER and mix, build heap after building heap or granulation, spray or drip to drench and contain bacterium high ferro liquid leaches metal to contain bacterium liquid under the natural condition.
2. the sulphide ores ore of basic gangue or the bioleaching process of concentrate or mine tailing of containing according to claim 1, it is characterized in that: described mixed bacterium is separated, is cultivated in the pH value is 1.5～2.5 9K basic medium, and condition is to contain (NH in 1 liter of culture
4)
2SO
41.5～4.5 grams, KCl 0.05～0.5 gram, K
2HPO
40.1～1.5 grams, MgSO
47H
2O 0.1～1.5 gram, Ca (NO
3)
20.01～0.1 gram, FeSO
47H
2O 11～56 grams, pH value 1.5～2.5, infected water sample access amount 5～50%, 25～35 ℃ of temperature, shaking speed 50-250 rev/min, in the pH value is to add in 1.5～2.5 the ordinary tap water to contain the sulphide ores ore of basic gangue or the consumption of concentrate or mine tailing is 5～20%, described sulphide ores ore or concentrate or mine tailing neutral and alkali oxide content are 2～40%, the consumption of added pyrite ore or sulphur ore powder is 5～20%, the S amount of containing of its correspondence is 35～45%, the consumption of SULPHUR POWDER is 1～10%, and the S amount of containing of its correspondence is 98～99.5%.
3. the sulphide ores ore of basic gangue or the bioleaching process of concentrate or mine tailing of containing according to claim 1 and 2, it is characterized in that: the spray flux of soaking bacterium high ferro liquid of described sulphide ores ore or concentrate or mine tailing is 5～25L/ (m
2H) build the heap surface-area.
4. the sulphide ores ore of basic gangue or the bioleaching process of concentrate or mine tailing of containing according to claim 3, it is characterized in that: the pelletizing granularity after the granulation of described sulphide ores ore or concentrate or mine tailing is 5～25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02128833XA CN100422358C (en) | 2002-08-15 | 2002-08-15 | Bioleaching process of sulfide mineral ore or concentrate or tailing containing alkaline veinstone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02128833XA CN100422358C (en) | 2002-08-15 | 2002-08-15 | Bioleaching process of sulfide mineral ore or concentrate or tailing containing alkaline veinstone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1475587A CN1475587A (en) | 2004-02-18 |
| CN100422358C true CN100422358C (en) | 2008-10-01 |
Family
ID=34143844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02128833XA Expired - Fee Related CN100422358C (en) | 2002-08-15 | 2002-08-15 | Bioleaching process of sulfide mineral ore or concentrate or tailing containing alkaline veinstone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100422358C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560110A (en) * | 2010-12-08 | 2012-07-11 | 北京有色金属研究总院 | Biological pre-oxidation treatment process of low-grade refractory gold ores or ore concentrate |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602005008972D1 (en) * | 2004-07-16 | 2008-09-25 | Bhp Billiton Sa Ltd | OPTIMIZING BIO EXPLOSION METHODS |
| PE20060789A1 (en) * | 2004-10-22 | 2006-08-10 | Biosigma Sa | WENELEN BACTERIA STRAIN DSM 16786 AND LEACHING PROCESS BASED ON INOCULATION OF SAID STRAIN |
| CN102251108B (en) * | 2011-07-07 | 2013-03-20 | 中国地质科学院矿产综合利用研究所 | Pre-treatment method for biological heap leaching of high-alkaline sulfide ore |
| CN103920694B (en) * | 2014-04-08 | 2015-12-09 | 重庆大学 | The method of Rapid deactivation parcel phosphorus mine tailing |
| CN104152691B (en) * | 2014-08-08 | 2016-04-27 | 西北矿冶研究院 | Biological heap leaching process for stripping copper sulfide ore in open air |
| CN105200232B (en) * | 2015-08-27 | 2017-12-12 | 中国科学院过程工程研究所 | A kind of method that copper sulfide mineral biological dump leaching Water spray starts |
| CN110563102A (en) * | 2019-09-11 | 2019-12-13 | 北京金山生态动力素制造有限公司 | Method for extracting natural mineral substances and trace elements from ores by using microorganisms |
| CN114196833B (en) * | 2021-12-17 | 2023-03-24 | 中南大学 | Method for promoting leaching of valuable metals in red mud by using sulfur oxidation of acidophilic microorganisms |
| CN115232981B (en) * | 2022-08-24 | 2024-05-14 | 深圳市中金岭南有色金属股份有限公司 | Biological leaching method of copper-zinc flotation tailings based on aeration oxidation and waste acid curing |
| CN115595438A (en) * | 2022-10-13 | 2023-01-13 | 中国科学院过程工程研究所（Cn） | Biological heap leaching method for low-sulfur ore |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5006320A (en) * | 1990-03-05 | 1991-04-09 | William W. Reid | Microbiological oxidation process for recovering mineral values |
| CN1040552C (en) * | 1994-09-06 | 1998-11-04 | 吉林省冶金研究所 | Pre-oxidating method for difficultly beneficiated gold containing ore or concentrated mineral by bacteria |
| CA2275098A1 (en) * | 1998-06-19 | 1999-12-19 | University Of Manitoba | Bacterial leaching of copper and zinc without iron leaching |
| CN1351180A (en) * | 2000-10-31 | 2002-05-29 | 中国科学院化工冶金研究所 | Microbe-catalytic oxidization-reduction compling process for extracting valuable metals from manganese oxide ore |
-
2002
- 2002-08-15 CN CNB02128833XA patent/CN100422358C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5006320A (en) * | 1990-03-05 | 1991-04-09 | William W. Reid | Microbiological oxidation process for recovering mineral values |
| CN1040552C (en) * | 1994-09-06 | 1998-11-04 | 吉林省冶金研究所 | Pre-oxidating method for difficultly beneficiated gold containing ore or concentrated mineral by bacteria |
| CA2275098A1 (en) * | 1998-06-19 | 1999-12-19 | University Of Manitoba | Bacterial leaching of copper and zinc without iron leaching |
| CN1351180A (en) * | 2000-10-31 | 2002-05-29 | 中国科学院化工冶金研究所 | Microbe-catalytic oxidization-reduction compling process for extracting valuable metals from manganese oxide ore |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560110A (en) * | 2010-12-08 | 2012-07-11 | 北京有色金属研究总院 | Biological pre-oxidation treatment process of low-grade refractory gold ores or ore concentrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1475587A (en) | 2004-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101260465B (en) | Method for improving biological leaching speed of metallic sulphide ore or concentrate by using leaching liquid containing separated microorganism to inoculate continuously | |
| CN103396964B (en) | Compound bacterium community capable of efficiently leaching sulphide ore, and compounding method and application method thereof | |
| CN100562566C (en) | The chemistry of moderate thermophilic bacteria and low-grade primary copper sulfide ore and bio combined heap leaching method | |
| CN100422358C (en) | Bioleaching process of sulfide mineral ore or concentrate or tailing containing alkaline veinstone | |
| CN105734285B (en) | A kind of method for strengthening zincblende Microorganism Leaching | |
| CN101434920B (en) | An strain of low temperature leaching-ore bacteria and process for using the same for low temperature heap leaching of nickel sulfide ore | |
| CN100537799C (en) | The biological stirring of cobalt-containing sulfur concentrate soaked the cobalt novel process | |
| CN108611489A (en) | A method of with Thiobacillus ferrooxidans from vanadium-containing shale Leaching Vanadium | |
| CN1322152C (en) | Desulfur method of iron ore | |
| CN100362117C (en) | Sulfide ore treatment technology by thermoacidophile | |
| CN105200232B (en) | A kind of method that copper sulfide mineral biological dump leaching Water spray starts | |
| CN101748080A (en) | Ore leaching bacteria and selectivity organism extraction process of low grade zinc sulfide ore | |
| CN101805829B (en) | Selective bioleaching process of high-sulphur/copper ratio secondary copper sulphide ore | |
| CN102020252B (en) | Biological leaching method of low-grade tellurium mine | |
| CN109957649A (en) | A kind of method that complexity iron concentrate prepares high-quality iron ore concentrate and cooperates with recycling copper zinc | |
| CN110029231B (en) | Bacterial leaching method of complex copper oxide ore containing multiple copper minerals | |
| CN101736155B (en) | Method for control oxidation of pyrite in bioleaching process | |
| CN108130424B (en) | A kind of method of pyrite cinder biological desulphurization upgrading collaboration recycling valuable metal | |
| CN1056646C (en) | Microbe and its application | |
| CN101597037B (en) | Method for bioleaching phosphor in iron ore containing phosphor | |
| CN1244685C (en) | Acid resistant mutagenic bacteria and its dump leaching process used for ore | |
| CN102312091A (en) | Method for leaching low-grade gold in high-arsenic sulfur concentrate acid-making cinder by microorganism preoxidation | |
| CN101984094B (en) | Method for controlling oxidation-reduction potential in biological heap leaching process | |
| CN104531992B (en) | Application of ferric phosphate for reinforcement of bacterial leaching out of nickel sulphide ores | |
| CN109182751B (en) | A method of chalcopyrite Bioleaching is promoted based on iron sulphur metabolic regulation |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190628 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: 100088, 2, Xinjie street, Beijing Patentee before: General Research Institute for Nonferrous Metals |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210413 Address after: 101407 No.11, Xingke East Street, Yanqi Economic and Technological Development Zone, Huairou District, Beijing Patentee after: Youyan resources and Environment Technology Research Institute (Beijing) Co.,Ltd. Address before: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee before: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20200815 |