CN101130807A - Method for screening bauxite desulfurizing bacteria by using acidic pit water in high-sulfur ore zone - Google Patents
Method for screening bauxite desulfurizing bacteria by using acidic pit water in high-sulfur ore zone Download PDFInfo
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- CN101130807A CN101130807A CNA200710119907XA CN200710119907A CN101130807A CN 101130807 A CN101130807 A CN 101130807A CN A200710119907X A CNA200710119907X A CN A200710119907XA CN 200710119907 A CN200710119907 A CN 200710119907A CN 101130807 A CN101130807 A CN 101130807A
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- sulfur
- mine water
- acidic mine
- bauxite
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- 239000011593 sulfur Substances 0.000 title claims abstract description 62
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 62
- 241000894006 Bacteria Species 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 31
- 238000012216 screening Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910001570 bauxite Inorganic materials 0.000 title claims description 41
- 230000003009 desulfurizing effect Effects 0.000 title abstract description 3
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 22
- 238000005065 mining Methods 0.000 claims abstract description 21
- 230000001580 bacterial effect Effects 0.000 claims abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 13
- 239000005864 Sulphur Substances 0.000 claims description 12
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 4
- 238000011534 incubation Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 230000023556 desulfurization Effects 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 229910052569 sulfide mineral Inorganic materials 0.000 description 3
- 241000605272 Acidithiobacillus thiooxidans Species 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 2
- 241000186541 Desulfotomaculum Species 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002054 inoculum Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- SRRKNRDXURUMPP-UHFFFAOYSA-N sodium disulfide Chemical compound [Na+].[Na+].[S-][S-] SRRKNRDXURUMPP-UHFFFAOYSA-N 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 241000605222 Acidithiobacillus ferrooxidans Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000589921 Leptospirillum ferrooxidans Species 0.000 description 1
- 241000605008 Spirillum Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 241000605118 Thiobacillus Species 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- NFMAZVUSKIJEIH-UHFFFAOYSA-N bis(sulfanylidene)iron Chemical compound S=[Fe]=S NFMAZVUSKIJEIH-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
-
- 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
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Zoology (AREA)
- Environmental & Geological Engineering (AREA)
- Genetics & Genomics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biomedical Technology (AREA)
- Virology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Medicinal Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The present invention relates to a method for screening alumyte desulfurizing bacteria by utilizing acidic pit water of high-sulfur mining area. It is characterized by that said invention utilizes acidic pit water of high-sulfur alumyte mining area and uses it as bacterial strain source, and utilizes high-sulfur alumyte to enrich the bacteria in the acidic pit water of high-sulfur alumyte mining area. Said method can be used for quickly screening bacteria for high-sulfur alumyte desulfurization.
Description
Technical field
Utilize high-sulfur mining area acidic mine water to carry out the method for alumyte desulfuration bacteria screening, relate to the bacteria screening method that a kind can remove sulfur impurity in the high-sulfur bauxite, relate to the screening method of a kind of alumyte desulfuration bacterium.
Background technology
The main sulfide mineral that high-sulfur type bauxite contains has pyrite (FeS
2), its isomer white pyrite and melnikovite and gypsum CaSO
4One class vitriol.When Bayer process is handled high-sulfur bauxite, wherein sulfide mineral and alkali react, its reaction mechanism is: the sulfide of iron at first resolves into sodium disulfide, and sodium disulfide decomposes generation sodium sulphite and Sulfothiorine under the high temperature, finally is oxidized to sodium sulfate and enters into solution.Owing to sodium sulfate accumulation gradually in alumina producing, bring many difficulties and harm for alumina producing and operation, so high-sulfur bauxite need by utilizing after the desulfurization processing again.Sulphur content in the Bayer process production requirement ore is lower than 0.7%, even low more good more.Effectively get rid of the sulphur impurity in the high-sulfur bauxite, seem very necessary opening up new alumina producing resource.
Microorganism can be by number of ways to the mineral effect, and the element in the mineral is converted into ion in the solution.The research object of biological metallurgy mainly is to utilize iron, sulfur-oxidizing bacteria to carry out the leaching of nearly all sulfide minerals such as copper, uranium, gold, nickel, but bibliographical information is not seen in the research of alumyte desulfuration as yet at present.Reported that the microorganism that can be used for soaking the ore deposit has kind more than 20, mainly contain thiobacillus ferrooxidant (Acidithiobacillus ferrooxidans, A.f), thiobacillus thiooxidans (Acidithiobacillus thiooxidans, A.t), iron protoxide hook end spirillum (Leptospirillum ferrooxidans, L.f).The research bacterium is leached the sulfur impurity remove in the high-sulfur bauxite, and the efficient utilization of high-sulfur bauxite is had very significant meaning.
The biological metallurgy Related Bacteria all adopts following method to carry out enrichment at present: gather the water sample that contains bacterium, the inoculation small amount of water sample carries out enrichment in iron content 9K substratum, the bacterium in the pregnant solution is screened again.Aforesaid method is a random screening, and the bacterium that filters out might not be needed bacterium, therefore needs repeatedly screening, repeatedly enrichment.
Summary of the invention
The objective of the invention is at the shortcoming that the purpose that exists in the above-mentioned biological metallurgy Related Bacteria triage techniques is strong, there is randomness in bacteria screening, propose that a kind of energy is simple, the high-sulfur mining area acidic mine water that utilizes of rapid screening carries out the method for alumyte desulfuration bacteria screening.
The objective of the invention is to be achieved through the following technical solutions.
Utilize high-sulfur mining area acidic mine water to carry out the method for alumyte desulfuration bacteria screening, it is characterized in that it being to utilize the acidic mine water in high-sulfur bauxite mining area to originate for bacterial classification; Utilize high-sulfur bauxite that the bacterium in the acidic mine water in high-sulfur bauxite mining area is carried out enrichment.
Method of the present invention need not after repeatedly enrichment and the enrichment bacterium repeatedly to be tamed, through promptly can be used for the desulfurization of high-sulfur bauxite after the mineral enrichment.
The method of utilizing high-sulfur mining area acidic mine water to carry out the alumyte desulfuration bacteria screening of the present invention is characterized in that its screening process is is (NH to adding iron-free 9K composition in the acidic mine water of gathering
4)
2SO
41～5g, K
2HPO
40.2～0.7g, Ca (NO
3)
20.005～0.02g, MgSO
47H
2The inorganic salt of O 0.2～0.7g, KCl 0.05～0.3g are used 1:1H again
2SO
4Regulating pH is 1.2～3.0, adds the high-sulfur bauxite breeze again, and the weight concentration that adds breeze in the pulp density that forms behind the breeze is 5%～20%; Place the gas bath constant temperature oscillator to cultivate above-mentioned solution, temperature is 25～50 ℃, and rotating speed is 100～200rpm, incubation time 20～40 days.
The method of utilizing high-sulfur mining area acidic mine water to carry out the alumyte desulfuration bacteria screening of the present invention is characterized in that its acidic mine water is a sulphur content greater than the acidic mine water in 0.7% high-sulfur bauxite district; Described high-sulfur bauxite is a sulphur content greater than 0.7% high-sulfur bauxite stone.
Adopt the high-sulphur alumyte desulfuration bacterium of seed selection of the present invention that following characteristics are arranged:
What (1) screening obtained is mixt bacteria, and in the microhabitat that various bacteria is formed, the interaction between bacterium makes bacterium remain high reactivity, thereby the effect of microbial desulfurization is obviously improved; The additionally mixed bacterium also is easier to preservation;
(2) bacterium is to screen to obtain in containing the substratum of high-sulfur bauxite, and bacterium is the energy with sulfur-bearing in the high-sulfur bauxite or iron-bearing mineral, thereby obtains the bacterium to sulfur-containing impurities obligate leaching in the high-sulfur bauxite;
Therefore (3) because bacterium is screen to obtain in containing the substratum of high-sulfur bauxite, the bacterium that obtains of screening has the ability of higher tolerance ore pulp shearing, does not need repeatedly to tame promptly to can be used for high-sulphur alumyte desulfuration.
(4) utilize the high-sulfur bauxite in mining area, acidic mine water place that the bacterium in the acidic mine water is carried out enrichment, the gained bacterium is better than the high-sulfur bauxite bacterium that enrichment obtains to acidic mine water that utilizes other mining area to the sweetening effectiveness of high-sulfur bauxite.
Embodiment
Utilize high-sulfur mining area acidic mine water to carry out the method for alumyte desulfuration bacteria screening, adopt high-sulfur bauxite that the method that bacterium in the acidic mine water of high-sulfur mining area carries out enrichment is screened desulfurizing bacteria.Following iron-free 9K inorganic salt composition will directly be added: (NH in the acidic mine water in collection high-sulfur bauxite mining area
4)
2SO
41～5g, K
2HPO
40.2～0.7g, Ca (NO
3)
20.005～0.02g, MgSO
47H
2O 0.2～0.7g, KCl 0.05～0.3g is with 1: 1H
2SO
4PH is adjusted to 1.2～3.0, and adding is milled to-200～-40 purpose high-sulfur bauxite breezes again, and adding the pulp density that forms behind the breeze is 5%～20%.Place the gas bath constant temperature oscillator to cultivate the nutrient solution that adds inorganic salt composition and high-sulfur bauxite, temperature is 25～50 ℃, and rotating speed is 100～200rpm, and incubation time can be screened mixt bacteria after 20～40 days for the first time.Be to collect bacterial classification behind the filtering with microporous membrane of 0.22 μ m with the mixt bacteria of screening for the first time through filter paper filtering, hole, use the deionized water wash millipore filtration of pH=1.0～2.5 then, with iron-free 9K substratum bacterium is swept away at last, can obtain being used for the bacterium of high-sulphur alumyte desulfuration.
Table 1 high-sulfur bauxite major ingredient content (%)
| Al(％) | Si(％) | Fe(％) | S(％) | |
| The Chongqing high-sulfur bauxite | 56.25 | 8.68 | 8.06 | 5.73 |
| Nanchuan 1300 | 58.95 | 12.11 | 5.82 | 4.76 |
Embodiment 1
Utilize the method for the invention, utilize the Chongqing high-sulfur bauxite that Chongqing high-sulfur bauxite district acidic mine water is carried out bacteria screening, the mixt bacteria that utilizes screening to obtain carries out desulfotomaculum bacteria to the Chongqing high-sulfur bauxite, leaching system pH 1.2～3.0, shaking speed 100～200r/min, soak 25～50 ℃ of ore deposit temperature, inoculum size 50% leached 20 days.Leach that the sulphur content of mineral is 1.88% after 20 days, desulfurization degree is 67.2%; Leach that the sulphur content of mineral is 0.36% after 40 days, desulfurization degree is 93.7%, and the alumina recovery rate is 96.1%.
Embodiment 2
Utilize the method for the invention, utilize the Chongqing high-sulfur bauxite that Chongqing high-sulfur bauxite district acidic mine water is carried out bacteria screening, the mixt bacteria that utilizes screening to obtain carries out desulfotomaculum bacteria to Nanchuan 1300 high-sulfur bauxites, leaching system pH 1.2～3.0, shaking speed 100～200r/min soaks 25～50 ℃ of ore deposit temperature, inoculum size 2%, leach that the sulphur content of mineral is 0.61% after 40 days, desulfurization degree is 87.2%, and the alumina recovery rate is 97.5%.
Claims (3)
1. utilize high-sulfur mining area acidic mine water to carry out the method for alumyte desulfuration bacteria screening, it is characterized in that it being to utilize the acidic mine water in high-sulfur bauxite mining area to originate for bacterial classification; Utilize high-sulfur bauxite that the bacterium in the acidic mine water in high-sulfur bauxite mining area is carried out enrichment.
2. the method for utilizing high-sulfur mining area acidic mine water to carry out the alumyte desulfuration bacteria screening according to claim 1 is characterized in that its screening process is is (NH to adding iron-free 9K composition in the acidic mine water of gathering
4)
2SO
41～5g, K
2HPO
40.2～0.7g, Ca (NO
3)
20.005～0.02g, MgSO
47H
2The inorganic salt of O 0.2～0.7g, KCl 0.05～0.3g use 1: 1H again
2SO
4Regulating pH is 1.2～3.0, adds the high-sulfur bauxite breeze again, and the weight concentration that adds breeze in the pulp density that forms behind the breeze is 5%～20%; Place the gas bath constant temperature oscillator to cultivate above-mentioned solution, temperature is 25～50 ℃, and rotating speed is 100～200rpm, incubation time 20～40 days.
3. the method for utilizing high-sulfur mining area acidic mine water to carry out the alumyte desulfuration bacteria screening according to claim 1 is characterized in that its acidic mine water is a sulphur content greater than the acidic mine water in 0.7% high-sulfur bauxite district; Described high-sulfur bauxite is a sulphur content greater than 0.7% high-sulfur bauxite stone.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710119907XA CN101130807A (en) | 2007-08-03 | 2007-08-03 | Method for screening bauxite desulfurizing bacteria by using acidic pit water in high-sulfur ore zone |
| PCT/CN2007/003720 WO2009018695A1 (en) | 2007-08-03 | 2007-12-21 | An enriching and screening bauxite desulfurizing bacteria method by using acidic water from the mining pit in high sulfur ore regions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710119907XA CN101130807A (en) | 2007-08-03 | 2007-08-03 | Method for screening bauxite desulfurizing bacteria by using acidic pit water in high-sulfur ore zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101130807A true CN101130807A (en) | 2008-02-27 |
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ID=39128212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710119907XA Pending CN101130807A (en) | 2007-08-03 | 2007-08-03 | Method for screening bauxite desulfurizing bacteria by using acidic pit water in high-sulfur ore zone |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101130807A (en) |
| WO (1) | WO2009018695A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897812B (en) * | 2012-10-19 | 2016-09-21 | 北京化工大学 | A kind of method of low-temperature bake doctor treatment activation processing high-sulfur bauxite |
| WO2022012904A1 (en) | 2020-07-13 | 2022-01-20 | Unilever Ip Holdings B.V. | Antiperspirant stick compositions |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475559A (en) * | 2002-08-15 | 2004-02-18 | 北京有色金属研究总院 | Breeding method of acid resistant mutagenic ore immersion bacterial culture |
| CN100398677C (en) * | 2006-10-13 | 2008-07-02 | 中国铝业股份有限公司 | Method of bacterial eliminating sulfur in high sulfur bauxite |
-
2007
- 2007-08-03 CN CNA200710119907XA patent/CN101130807A/en active Pending
- 2007-12-21 WO PCT/CN2007/003720 patent/WO2009018695A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2009018695A1 (en) | 2009-02-12 |
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