Arsenic removal when firing scorodite containing ore in steam atmosphere

In modern conditions in connection with exhaustion of reserves of placer gold, it is necessary to involve refractory ores in processing. These ores are gold-quartz-arsenic (scorodite). They contain finely disseminated and dispersed gold and have not yet been developed. Firing of scorodite containing ore in an atmosphere of superheated water from the sulfur-containing agents allows to remove arsenic in a small and toxic sulphidic form and to increase gold extraction. The results of pilot studies of dearsenization process of gold-bearing skorodite ore are given in the atmosphere of water vapor. It is shown that when firing a skorodite with pyrites in the atmosphere of superheated water vapor there is a full removal of arsenic and sulfur from initial material in the form of its sulfides, and also opening of precious metal. On the basis of the received results, creation of a combination of ecologically safe technologies for processing of this type of ore is possible.