The Extraction of Gold from Sulfide Concentrates into Molten Lead

Тип публикации: статья из журнала

Год издания: 2008

Идентификатор DOI: 10.3103/S1067821208050052

Ключевые слова: Carrier minerals, Extraction of golds, Low temperatures, Mineral sulfides, Sulfide concentrates, Temperature range, Transient region, Anodic oxidation, Extraction, Gold, Lead, Sulfur compounds, Ore treatment

Аннотация: The results of investigation of the extraction of gold from mineral sulfide ore into molten lead at low temperatures (350-550 degrees C) are given. The questions of solubility of Au in Pb in the mentioned temperature range and the kinetics of dissolution of metal are analyzed. The condition that determines extraction of gold is the presence of a processing medium, which provides the decomposition of carrier minerals of gold and prevents the anodic oxidation of the lead alloy. The alkali melt is suggested to be used as such a medium. The procedures of preparation of sulfide Au-containing concentrates to the extraction associated with obtaining the cakes and their charging into the extraction apparatus are considered. Extraction proceeds in the transient region. In this case, high characteristics of extraction are achieved. The reasons for collector dispersion, which conditions the losses of gold, are established.

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Издание

Журнал: RUSSIAN JOURNAL OF NON-FERROUS METALS

Выпуск журнала: Vol. 49, Is. 5

Номера страниц: 340-345

ISSN журнала: 10678212

Место издания: NEW YORK

Издатель: ALLERTON PRESS INC

Авторы

  • Chekushin V.S. (Siberian Fed Univ, Inst Non Ferrous Met & Mat Sci, Krasnoyarsk 660025, Russia)
  • Oleinikova N.V. (Siberian Fed Univ, Inst Non Ferrous Met & Mat Sci, Krasnoyarsk 660025, Russia)
  • Tychenko A.I. (Siberian Fed Univ, Inst Non Ferrous Met & Mat Sci, Krasnoyarsk 660025, Russia)

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