On gold extraction from rebellious ores

The paper generalizes research findings on application of chemical additives to stage-by-stage processing of rebellious gold-bearing ores. The designed stages of gold extraction intensification are the controlled mineral alteration by preparation, use of conventional and specific collecting agents to prepare mineral surface to sorption to intensify flotation, creation of selective collecting agents, and cyanation optimization by introducing additional oxidation agents. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 102–109, March–April, 2009.