中國有色金屬學報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 16 No. 4 August 2006 |
Microbial leaching of marmatite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans
WANG Jun(王 軍), QIU Guan-zhou(邱冠周),
QIN Wen-qing(覃文慶), ZHANG Yan-sheng(張雁生)
QIN Wen-qing(覃文慶), ZHANG Yan-sheng(張雁生)
（School of Resources Processing and Bioengineering, Central South University,
Changsha 410083, China）
Abstract: The bioleaching of marmatite in shaken flasks was studied. After leaching for 29 days, the leaching ratio of zinc was 91%. Three kinds of bacteria, mixture-based bacteria, 9K-based bacteria and sulfur-based bacteria were used in marmatite leaching, of which the mixture-based bacteria have the best leaching result while the sulfur-based bacteria have the worst. By analyzing the leaching residue using SEM and EDXA, the marmatite leaching mechanism was discussed.
Key words: marmatite; bioleaching; leaching ratio; Acidithiobacillus ferrooxidans; Acidithiobacillus thiooxidans
