Способ извлечения золота из теллуристых руд и концентратов: патент на изобретение

Translated title of the contribution: METHOD TO EXTRACT GOLD FROM TELLURIDE ORES AND CONCENTRATES: patent of invention

Владимир Геннадьевич Лобанов (Inventor), Фарит Минниахметович Набиуллин (Inventor), Владимир Борисович Начаров (Inventor), Николай Александрович Филонов (Inventor), Ольга Юрьевна Маковская (Inventor), Евгений Иванович Тимофеев (Inventor)

Research output: Patent

Abstract

FIELD: metallurgy.
SUBSTANCE: invention relates to the field of metallurgy of non-ferrous and noble metals, in particular, to the method to extract gold from telluride ores and concentrates. Initial raw materials are treated with a solution containing 1-10 g/l of sodium sulphite, 0.1-1 mg/l of dissolved oxygen, at pH=10-11. After treatment the cake is separated from the solution and exposed to cyanidation. Solution separated from the cake is returned to treat new portion of raw materials in sodium sulphite solution.
EFFECT: increased speed of gold dissolution during cyanidation by 20-30% due to damage of strong connection between gold and tellurium.
Translated title of the contributionMETHOD TO EXTRACT GOLD FROM TELLURIDE ORES AND CONCENTRATES: patent of invention
Original languageRussian
Patent number2541236
IPC C22B 11/08
Filing date23/04/2013
Publication statusPublished - 10 Feb 2015

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