Modeling of thermal effect of chemical reactions in heap bioleaching of chalcopyrite

Zhenyi Zhang, Chihiro Inoue, Taro Kamiya, Xuan Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationFuture Material Research and Industry Application, FMRIA 2011
Pages1009-1012
Number of pages4
DOIs
Publication statusPublished - 2012
Event2011 SSITE International Conference on Future Material Research and Industry Application, FMRIA 2011 - Macau, China
Duration: 2011 Dec 12011 Dec 2

Publication series

NameAdvanced Materials Research
Volume455-456
ISSN (Print)1022-6680

Other

Other2011 SSITE International Conference on Future Material Research and Industry Application, FMRIA 2011
CountryChina
CityMacau
Period11/12/111/12/2

Keywords

  • Chalcopyrite
  • Heap bioleaching
  • Thermal effect

ASJC Scopus subject areas

  • Engineering(all)

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