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Electrochemical studies on interplay of mineralogical variation and particle size on bioleaching low grade complex sulphide ores P. A. OLUBAMBI1, J. H. POTGIETER2, S. NDLOVU3, J. O... particle sizes on the dissolution behaviour of a low grade complex sulphide ore was investigated through bioleaching experiments and electrochemical technique. Investigations were carried out......
High efficient mixed culture screening and selected microbial community shift for bioleaching process LI Shou-peng1, 2, GUO Ning1, 2, WU Hai-yan1, 2,QIU Guan-zhou1, 2, LIU Xin-xing1, 2 1..., China Received 12 June 2010; accepted 24 January 2011 Abstract: To screen the high efficient mixed culture and understand the bioleaching behaviors of mixed culture for low-grade copper sulfide ore......
Feasibility study on heap bioleaching of chalcopyriteBo-Wei Chen,Jian-KangNational Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals摘 要:Bioleaching of chalcopyrite often encountered the formation of passivation layer,which inhibited the leaching process and resulted in a low leaching rate.This inhibitory......
Trans. Nonferrous Met. Soc. China 22(2012) 1250-1254 Electrochemical oxidation behavior of pyrite bioleaching by Acidthiobacillus ferrooxidans GU Guo-hua1, SUN Xiao-jun1,2, HU Ke-ting1, LI...., Huangshi 435005, China Received 9 May 2011; accepted 30 August 2011 Abstract: The electrochemical oxidation behavior of pyrite in bioleaching system of Acidthiobacillus ferrooxidans was investigated......
and potassium hydroxide solution. On the contrary, ZHAO et al [21] proposed that a synergistic effect existed between chalcopyrite and bornite bioleaching in the presence of A. ferrooxidans. Moreover... dissolution; acid culture medium; bioleaching 1 Introduction Chalcopyrite (CuFeS2) and bornite (Cu5FeS4) are the most abundant copper-bearing minerals in the world, both having three crystal forms [1,2......
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Trans. Nonferrous Met. Soc. China 24(2014) 1171-1178 Effect of pyrite, elemental sulfur and ferrous ions on EPS production by metal sulfide bioleaching microbes Zhi-guo HE1,2, Yan-ping YANG1,2, Shan... polymeric substances (EPS) produced by acidophilic bioleaching microorganisms play an important role in the production of acid mine drainage and metal sulfide bioleaching. EPS mediate the contact......
characteri- stics before and after bioleaching microorganism adhesion to pyrite 3.1.1 Electrical double layer at pyrite/solution interface After the treatment of crushing and polishing, crystal... Interfacial electrokinetic characteristics before and after bioleaching microorganism adhesion to pyrite LIU Jian-she(柳建设), WANG Zhao-hui(王兆慧), CHEN Hong(陈 红), ZHANG Yan-hua(张艳华) School......
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