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 theПоказать полностьюpresence 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.
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