The bioleaching characteristics of chalcopyrite with different genetic types

被引：0

作者：

Bai, Jing ^{[1
]}

Wen, Jiangkang ^{[1
]}

Huang, Songtao ^{[1
]}

Wu, Biao ^{[1
]}

Chen, Bowei ^{[1
]}

机构：

[1] Gen Res Inst Nonferrous Met, Natl Engn Lab Biohydrometallury, Beijing, Peoples R China

来源：

INTEGRATION OF SCIENTIFIC AND INDUSTRIAL KNOWLEDGE ON BIOHYDROMETALLURGY | 2013年 / 825卷

关键词：

Thermophiles; marine volcanic chalcopyrite; porphyry chalcopyrite; community composition;

D O I：

10.4028/www.scientific.net/AMR.825.443

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The copper extraction yield from thermophilic bioleaching of chalcopyrite depends on temperature, pH, and the oxidation-reduction potential (ORP), the activity of the thermophile used, as well as on the different genetic type of the chalcopyrite used. The bioleaching characteristics of chalcopyrite from marine volcanic type and porphyry type, and the influence of genetic type on microbial community were studied. The results indicated that the low dissolution rate of porphyry chalcopyrite is related to the high redox potential. The thermophiles composition of marine volcanic type bioleaching was Metallosphaera cuprina and Sulfobus sp HB59. Metallosphaera cuprina was the dominate bacteria population during porphyry chalcopyrite bioleaching. The different leachability between marine volcanic type and porphyry type is attributed to their nature which caused by genetic type.

引用

页码：443 / 446

页数：4

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