TY - GEN
T1 - Modeling of thermal effect of chemical reactions in heap bioleaching of chalcopyrite
AU - Zhang, Zhenyi
AU - Inoue, Chihiro
AU - Kamiya, Taro
AU - Zhao, Xuan
PY - 2012
Y1 - 2012
N2 - Heap bioleaching is regarded as an environmental-friendly technology to extract valuable metals, such as gold, silver, copper, etc., from low grade or waste ores. The chemical reactions accelerated by microorganisms are usually complex. Microbial activity is ascribed to the physiochemical factors such as temperature. Due to the variety of ore components, the thermal effect is difficult to elaborate. In this study, typical ores used for heap bioleaching of chalcopyrite are theoretically analyzed to explore the mechanism involving the thermal effect of chemical reactions. The thermal distribution is compared between different proportional combinations. The results show that biotite is the dominant contributor and should be verified carefully in the heap bioleaching of chalcopyrite.
AB - Heap bioleaching is regarded as an environmental-friendly technology to extract valuable metals, such as gold, silver, copper, etc., from low grade or waste ores. The chemical reactions accelerated by microorganisms are usually complex. Microbial activity is ascribed to the physiochemical factors such as temperature. Due to the variety of ore components, the thermal effect is difficult to elaborate. In this study, typical ores used for heap bioleaching of chalcopyrite are theoretically analyzed to explore the mechanism involving the thermal effect of chemical reactions. The thermal distribution is compared between different proportional combinations. The results show that biotite is the dominant contributor and should be verified carefully in the heap bioleaching of chalcopyrite.
KW - Chalcopyrite
KW - Heap bioleaching
KW - Thermal effect
UR - http://www.scopus.com/inward/record.url?scp=84863121714&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863121714&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.455-456.1009
DO - 10.4028/www.scientific.net/AMR.455-456.1009
M3 - Conference contribution
AN - SCOPUS:84863121714
SN - 9783037853009
T3 - Advanced Materials Research
SP - 1009
EP - 1012
BT - Future Material Research and Industry Application, FMRIA 2011
T2 - 2011 SSITE International Conference on Future Material Research and Industry Application, FMRIA 2011
Y2 - 1 December 2011 through 2 December 2011
ER -