PE20070417A1 - SULFOOXIDANT BACTERIA IN PROCESSES OF BIOLIXIVIATION OF SULFURED COPPER MINERALS - Google Patents
SULFOOXIDANT BACTERIA IN PROCESSES OF BIOLIXIVIATION OF SULFURED COPPER MINERALSInfo
- Publication number
- PE20070417A1 PE20070417A1 PE2006000960A PE2006000960A PE20070417A1 PE 20070417 A1 PE20070417 A1 PE 20070417A1 PE 2006000960 A PE2006000960 A PE 2006000960A PE 2006000960 A PE2006000960 A PE 2006000960A PE 20070417 A1 PE20070417 A1 PE 20070417A1
- Authority
- PE
- Peru
- Prior art keywords
- copper
- temperature less
- biolixiviation
- strain
- sulfooxidant
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 241000894006 Bacteria Species 0.000 title 1
- 229910001779 copper mineral Inorganic materials 0.000 title 1
- 230000001580 bacterial effect Effects 0.000 abstract 2
- 238000002386 leaching Methods 0.000 abstract 2
- 241000605272 Acidithiobacillus thiooxidans Species 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 230000001651 autotrophic effect Effects 0.000 abstract 1
- 229910052948 bornite Inorganic materials 0.000 abstract 1
- 229910052951 chalcopyrite Inorganic materials 0.000 abstract 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 241000894007 species Species 0.000 abstract 1
- 150000003464 sulfur compounds Chemical class 0.000 abstract 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
SE REFIERE A UNA CEPA BACTERIANA AISLADA DE LA ESPECIE ACIDITHIOBACILLUS THIOOXIDANS DENOMINADA LICANANTAY, DEPOSITADA COMO DSM 17318 Y QUE UTILIZA COMPUESTOS DE AZUFRE REDUCIDO PARA SOSTENER EL CRECIMIENTO AUTOTROFICO. DICHA CEPA PRESENTA UNA ACTIVIDAD AUMENTADA EN LA LIXIVIACION DEL COBRE DE MENAS SULFURADAS MIXTAS, EN ESPECIAL LAS QUE CONTIENEN CALCOPIRITA, BORNITA, CALCOSINA, COVELINA, ENTRE OTRAS ESPECIES MINERALOGICAS DE COBRE. SE REFIERE TAMBIEN A UN PROCESO DE BIOLIXIVIACION DE MINERALES QUE CONSISTE EN LIXIVIAR LA MENA SULFURADA CON SOLUCIONES ACIDAS BACTERIANAS QUE CONTIENEN LA CEPA LICANANTAY DSM 17318 PARA LA OBTENCION DE COBRE, A UNA TEMPERATURA MENOR DE 35 ºC Y UN pH DE 1,0 A 2,5REFERS TO AN ISOLATED BACTERIAL STRAIN OF THE ACIDITHIOBACILLUS THIOOXIDANS SPECIES CALLED LICANANTAY, DEPOSITED AS DSM 17318 AND USING REDUCED SULFUR COMPOUNDS TO SUPPORT AUTOTROPHIC GROWTH. SAID STRAIN PRESENTS AN INCREASED ACTIVITY IN THE LEACHING OF COPPER FROM MIXED SULFURATED ORE, ESPECIALLY THOSE CONTAINING CHALCOPYRITE, BORNITE, CALCOSINE, COVELIN, AMONG OTHER MINERALOGICAL SPECIES OF COPPER. IT ALSO REFERS TO A MINERAL BIOLIXIVIATION PROCESS WHICH CONSISTS OF LEACHING SULFURATED ORE WITH BACTERIAL ACID SOLUTIONS CONTAINING THE LICANANTAY DSM 17318 STRAIN FOR THE OBTAINING OF COPPER, AT A TEMPERATURE LESS THAN 35 ºC AND A TEMPERATURE LESS THAN 35 ºC AND A TEMPERATURE LESS THAN 35 ºC ,5
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CL2005000210 | 2005-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PE20070417A1 true PE20070417A1 (en) | 2007-04-14 |
Family
ID=43298619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PE2006000960A PE20070417A1 (en) | 2005-08-17 | 2006-08-07 | SULFOOXIDANT BACTERIA IN PROCESSES OF BIOLIXIVIATION OF SULFURED COPPER MINERALS |
Country Status (1)
| Country | Link |
|---|---|
| PE (1) | PE20070417A1 (en) |
-
2006
- 2006-08-07 PE PE2006000960A patent/PE20070417A1/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration | ||
| FD | Application declared void or lapsed |