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Preservation of moderately thermophilic culture by freeze drying and frozen preservation way and effect on subsequent bioleaching of chalcopyrite ZENG Wei-min(曾伟民)1, 2, ZHOU Hong-bo(周洪波)1, 2, LIU... for bioleaching of chalcopyrite concentrate. After preservation of 15 months, the cell viability rate decreases to 22% with a cell density of 7×107 mL-1. When the growth time was extended from 8 days to 14 days......
="ChDivSummary" name="ChDivSummary">Bioleaching of chalcopyrite often encountered the formation of passivation layer,which inhibited the leaching process and resulted in a low leaching rate.This inhibitory effect can be eliminated by thermophilic bioleaching.The industrial test of BioCOP technology based on thermophiles was successfully completed,which confirmed the feasibility of chalcopyrite......
on chalcopyrite and pyrite flotation GU Guo-hua(顾帼华)1, SUN Xiao-jun(孙小俊)1, 2, LI Jian-hua(李建华)2, HU Yue-hua(胡岳华)1 1. School of Resource Processing and Bio-engineering, Central South University Changsha... in the flotation process of chalcopyrite and pyrite was investigated through flotation experiments, zeta potential measurements and infrared spectrum analysis. Flotation test results indicate that DLZ......
Bioleaching of two different types of chalcopyrite by Acidithiobacillus ferrooxidansYing-bo Dong1,2,Hai Lin1,2,Kai-bin Fu2,Xiao-fang Xu1,2,Shan-shan Zhou1,21. Key Laboratory of High-Efficient Mining... id="ChDivSummary" name="ChDivSummary">Two different types of chalcopyrite (pyritic chalcopyrite and porphyry chalcopyrite) were bioleached with Acidithiobacillus ferrooxidans ATF6. The bioleaching......
J. Cent. South Univ. Technol. (2007)04-0474-05 DOI: 10.1007/s11771-007-0092-2 Bioleaching of chalcopyrite by mixed culture of moderately thermophilic microorganisms WU Chang-bin(邬长斌)1,2, ZENG Wei... collected from several sulphide mines in China, and the bioleaching of chalcopyrite was conducted both in shake flask and bioreactor. The results show that in the shake flask, the mixture can......
STUDY ON BIOLEACHING OF PRIMARY CHALCOPYRITE ORE WITH THERMOACIDOPHLIC ARCHAE T. Lei1,P. Zou2,W.B. Zhang2,J.K. Wang1 (1.Technology Center, Yunnan Metallurgy Group Co., Ltd., Kunming 650031,China...-containing spring in the Yunnan Province, China, and was used in bioleaching experiments of a low-grade chalcopyrite ore. The TA grow at temperatures ranging from 40 to 80℃, with 65℃ being the optimum......
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J. Cent. South Univ. (2018) 25: 21-28 DOI: https://doi.org/10.1007/s11771-018-3713-z Improving of copper extraction from chalcopyrite by using NaCl M. Deniz Turan1, Mustafa Boyrazl1, H. Soner...; chalcopyrite; oxidation; leaching; dissolution Cite this article as: M. Deniz Turan, Mustafa Boyrazl, H. Soner Altundoan. Improving of copper extraction from chalcopyrite by using NaCl [J]. Journal of Central......
J. Cent. South Univ. Technol. (2009) 16: 0753-0757 DOI: 10.1007/s11771-009-0125-0 Effect of organic depressant lignosulfonate calcium on separation of chalcopyrite from pyrite LIU Run-qing(刘润清...; Abstract: In order to selectively separate chalcopyrite from......
Electrochemical behavior of chalcopyrite in presence of Thiobacillus ferrooxidans LI Hong-xu(李宏煦)1,2, QIU Guan-zhou(邱冠周)3, HU Yue-hua(胡岳华)3, CANG Da-qiang(苍大强)1,2, WANG Dian-zuo(王淀佐)3 1. School... 100083, China; 3. School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China Received 23 December 2005; accepted 17 April 2006 Abstract: The chalcopyrite......