中度嗜热微生物浸出复杂多金属铜精矿的优化

中度嗜热微生物浸出复杂多金属铜精矿的优化

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Bibliographic Details
Published in:中国有色金属学报：英文版 Vol. 24; no. 4; pp. 1161 - 1170
Main Author: 王玉光 苏丽君 曾伟民 邱冠周 万利利 陈新华 周洪波
Format: Journal Article
Language:English
Published: 2014
Subjects:
中度嗜热微生物
优化
复杂多金属铜精矿
生物浸出
铜浸出
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Bibliography:Effects of initial pH, temperature, liquid volume, rotation speed, galvanic interaction （pyrite ratio） and pulp density on bioleaching of complex Cu-polymetallic concentrate were investigated. The results indicated that the copper extraction at pH 1.5 was 1.5 and 1.4 times that at pH 1.0 and pH 2.0 respectively. The copper extraction obtained at 45 ℃ was 1236.8%higher than that at 50 ℃. With the increase of rotation speed or the decrease of liquid volume, copper extraction was improved obviously. Copper extraction was improved gradually with the increase of pyrite ratio. However, when the ratio was higher than 20.0%, no further increase in copper extraction was observed. And the statistically significant interactive effects on copper extraction were found between temperature and pH, and temperature and pyrite ratio.
moderate thermophiles; bioleaching; complex Cu-polymetallic concentrate; copper extraction; optimization
43-1239/TG
Yu-guang WANG, Li-jun SU, Wei-min ZENG, Guan-zhou QIU, Li-li WAN, Xin-hua CHEN, Hong-bo ZHOU（ 1. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; 2. Department of Clinic Laboratory, Changsha Medical University, Changsha 410219, China; 3. Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha 410083, China; 4. Key Laboratory of Marine Biogenetic Resources, State Oceanic Administration, Xiamen 361005, China）
ISSN:1003-6326