A new process for extracting gold from auriferous ores, and particularly applicable with great advantage to pyrites and other ores containing gold in small quantities
نویسندگان
چکیده
منابع مشابه
A two-stage bacterial pretreatment process for double refractory gold ores
Double refractory gold concentrates were subjected a two-stage microbial process to destroy both sulfides and carbonaceous matter. In the first stage, the well-known sulfide biooxidation process, which utilizes chemolithotrophic bacteria was used to oxidize sulfides and in the second stage carbonaceous matter is destroyed using the bacterium Streptomyces setonii. After biooxidation of sulfides ...
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Biomining is the use of microorganisms to extract metals from sulfide and/or iron-containing ores and mineral concentrates. The iron and sulfide is microbially oxidized to produce ferric iron and sulfuric acid, and these chemicals convert the insoluble sulfides of metals such as copper, nickel and zinc to soluble metal sulfates that can be readily recovered from solution. Although gold is inert...
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ژورنال
عنوان ژورنال: Journal of the Franklin Institute
سال: 1865
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(65)90521-1