Journals →  Non-ferrous Мetals →  2012 →  #1 →  Back

NOBLE METALS AND ALLOYS
ArticleName Certain features of the autoclave liberation of carbonaceous gold-bearing ores and concentrates
ArticleAuthor Shneerson Ya. M., Chugaev L. V., Pleshkov M. A.
ArticleAuthorData

Research and Development Centre “Gidrometallutgiya”

Ya. M. Shneerson, General Director, e-mail: ims@gidrometall.ru

L. V. Chugaev, Leading Researcher

M. A. Pleshkov, Leading Researcher

Abstract

The paper reviews chemical processes and related technological characteristics of the autoclave liberation of carbonaceous gold-bearing feed and highlights a tendency towards the expansion of industrial processing of such materials. It has been shown that the development of this trend requires a detailed study of gold and carbon chemical transformations in the course of autoclave leaching. According to the proposed model, the simultaneous processes of carbonaceous matter oxidation and passivation, interaction of gold precipitated during sulfide decomposition with carbon and products of its oxidation, with their rates changing differently when varying POL parameters, determine the nature of effect of these parameters on gold recovery. The presented considerations are hypothetic and needed to be proved through studying the chemical transformations of gold and carbonaceous matter in the course of pressure oxidizing leaching Cases of successful commercial extraction of gold from refractory raw materials containing carbonaceous matter via POL methods testify the promising perspectives of this trend and necessity of detailed studies of chemical transformations of gold and carbon, a crucial part of the present technology.

keywords Autoclave, leaching, recovery, gold, refractory gold-bearing ores, carbonaceous material
References

1. Naboychenko S. S., Shneerson Ya. M., Kalashnikova M. I., Chugaev L. V. Avtoklavnaya gidrometallurgiya tsvetnykh metallov (Pressure Hydrometallurgy of Non-ferrous Metals). Ekaterinburg, 2008. Vol. 1. 376 pp.
2. Naboychenko S. S., Shneerson Ya. M., Kalashnikova M. I., Chugaev L. V. Avtoklavnaya gidrometallurgiya tsvetnykh metallov (Pressure Hydrometallurgy of Non-ferrous Metals). Ekaterinburg, 2009. Vol. 2. 612 pp.
3. Meretukov M. A. Zoloto : khimiya, mineralogiya, metallurgiya (Gold: Chemistry, Mineralogy, Metallrgy). Moscow, 2008. 528 pp.
4. Chryssoulis S. L., McMullen J. Advances in gold ore processing: ed. M. D. Adams. Development in mineral processing Series 15. : ed. B. A. Wills. Elsevier, 2005. pp. 21–72.
5. Chen T. T., Cabri L. J., Dutrizak J. E. JOM. 2002. Vol. 54, No. 12. pp. 20–23.
6. Paddefet R. Khimiya zolota (Chemistry of Gold). Moscow, 1982. 264 pp.
7. Chugaev L. V., Korzhenevskaya M. M. Izvestiya vuzov. Tsvetnaya metallurgiya — Proceedings of higher school. Nonferrous metallurgy. 1972. No. 5. pp. 57–62.
8. Busev A. I., Ivanov V. M. Analiticheskaya khimiya zolota (Analytical Chemistry of Gold). Moscow, 1973. 264 p.
9. Simmons G. L. Proc. Randol Gold Forum’96. Randol Int., Golden. Colorado, 1996. pp. 199–208.
10. Simmons G. L., Baughman D. R., Gathje J. C., Oberg K. C. Min. Eng. 1998. Vol. 50, No. 1. pp. 69–73.
11. Chugaev L. V., Shneerson Ya. M., Nikitin M. V., Ivanova N. F. Tsvetnye metally — Non-ferrous metals. 1998. No. 2. pp. 56–60.
12. Proskuryakov V. A. Issledovaniya v oblasti okisleniya goryuchikh iskopaemykh kislorodom vozdukha v vodnoy i vodno-shchelochnoy sredakh : doklad na soiskanie uchenoy stepeni doktora tekhnicheskikh nauk (Research in the field of combustible fossil oxidation by atmospheric oxygen in aqueous and aqueous-alkaline media: a competition report for the degree of Doctor of Technical Sciences). Leningrad, 1967.
13. Chistyakov A. N. Okislenie kondensirovannykh aromaticheskikh svyazey kislorodom vozdukha v vodno-shchelochnoy srede : avtoref. dis. d-ra tekhn. nauk (The oxidation of condensed aromatic bonds by atmospheric oxygen in aqueous alkaline medium : thesis of inauguration of dissertation... of Doctor of Engineering Sciences). Leningrad, 1971.
14. Proskuryakov V. A., Soloveychik E. V. Raboty v oblasti khimii i tekhnologii topliva (Papers on chemistry and technology of fuel). 1964. Iss. 63. pp. 62–66.
15. Danilov V. A., Yakovlev V. I., Soloveychik E. V., Proskuryakov V. A. Okislenie uglevodorodov i kaustobiolitov (Oxidation of Hydrocarbons and Caustobioliths). Leningrad, 1975. pp. 47–49.
16. Danilov V. A., Yakovlev V. I., Soloveychik E. V., Proskuryakov V. A. Okislenie uglevodorodov i kaustobiolitov (Oxidation of Hydrocarbons and Caustobioliths). Leningrad, 1975. pp. 45–47.
17. Chistyakov A. N. Khimiya i tekhnologiya pererabotki kamennougolnykh smol (Chemistry and Technology of Rock-Coal Resins). Chelyabinsk, 1990. pp. 99–159.
18. Meretukov M. A. Zoloto i prirodnoe uglistoe veshchestvo (Gold and Natural Coaly Substance). Moscow, 2007. 112 pp.
19. Martynov B. V. Ekstraktsiya organicheskimi kislotami i ikh solyami : sprav. po ekstraktsii (Extraction with Organic Acids and Their Salts : reference book on extraction). Moscow, 1978. Vol 3. 368 pp.
20. Fleming S., Geldart J., Blatter P. etal. Flowsheet development for Agnico Eagle’s refractory gold Kittila Project in Finland. Proc. 6th Int. Symp. Hydrometallurgy. 2008. August 17–20. Phoenix, Littleton (Arizona) : SME, 2008.
21. Simmons G. Method for treating mineral material having organic carbon to facilitate recovery of gold and silver. Patent US, No. 5536480. 1996.
22. Ketcham V. J., O’Reilly J. F., Vardill W. D. Miner. eng. 1993. Vol. 6, No. 8/9/10. pp. 1037–1065.
23. Liu J. Q., Nicol M. J. Proc. 32th Annual meeting Chloride Metallurgy 2002. Montreal : Canadian Institute of Mining. 2002. Vol. 1. pp. 41–54.
24. Avraamides J., Hefter G., Budiselic C. Bull. Proc. Australasia, November, 1995. pp. 59–62.
25. Gathje J., Simmons G. Method for pressure oxidizing goldbearing refractory sulfide ores having organic carbon. Patent. US, No. 5851499. 1998.
26. Cadzow M. D., Giraudo T. S. Proc. New Zealand Minerals and Mining Conf. 2000. October 29–31. Wellington : 2000. pp. 275–281.

Language of full-text english
Full content Buy
Back