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Noble metals and alloys
ArticleName Autoclave oxidation of sulphide gold-bearing concentrates
ArticleAuthor Bogorodskiy A. V., Balikov S. V., Emel'yanov Yu. E., Kopylova N. V.
ArticleAuthorData A. V. Bogorodskiy, Jounior Researcher, e-mail: bav@irgiredmet.ru; S. V. Balikov, Doctor of Engineering; Yu. E. Emel'yanov, Leading Researcher; N. V. Kopylova, Researcher, Irgiredmet.
Abstract
The laboratory researches of autoclave oxidation with follow cyanidation of sulphide gold-bearing ores and concentrates, contained organic carbonic substance from the one of deposit of the Amur region have been realized. The results of research for determination of optimal conditions of autoclave oxidation of ore and flotation concentrates, obtained via different beneficiation technologies have been presented. The influence of carbonic substance content in processing product on extraction of precious metals during cyanidation process has been educed. The results of researches have been shown, that gold and silver extraction during cyanidation depends on oxidation degree of pyrite in autoclave process. Autoclave opening allows to raise gold extraction from 6–15 till 86–90%. Gold extraction during cyanidation of products of autoclave oxidation essentially depends on mass correlation of gold and organic carbon.
keywords Autoclave oxidation, double resistance, extraction, oxidation degree, organic carbon, sulphide concentrates, sorption cyanidation.
References

1. Naboychenko S. S., Shneerson Ya. M., Kalashnikova M. I., Chugaev L. V. Avtoklavnaya gidrometallurgiya tsvetnykh metallov (Autoclave hydrometallurgy of non-ferrous metals). Ekaterinburg, 2008. Part. 1. 376 p.

2. Patent 97/16083 US. Method for pressure oxidizing gold. Bearing refractory sulfide ores having organic carbon. Simmons, Gary. L /WO 98/ 11019.1998.03.19.

3. Zyryanov M. N., Leonov S. B. Khloridnaya metallurgiya zolota (Chloride gold metallurgy). Moscow, 1997. 288 p.

4. Meretukov M. A. Zoloto i prirodnye uglerodistye veshchestva (Gold and natural carbonic matter). Moscow, 2007. 112 p.

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