TECHNOLOGICAL FLOW SHEET FOR PREPARING ORES FROM ROSIA MONTANA DEPOSITS AND OTHER SIMILAR DEPOSITS, FOR OBTAINING CONCENTRATES ENRICHED IN USEFUL MINERAL SUBSTANCES, BECOME RAW MATERIAL IN THE SAID FLOW, FOR OBTAINING GOLD, SILVER AND OTHER METALLIC AND NON-METALLIC ASSOCIATED ELEMENTS, WITHOUT USING CYANIDATION OR AMALGAMATION PROCESSES

摘要

The invention relates to a technological flow sheet for preparing the ores from the Rosia Montana deposits or from other similar deposits, in order to obtain concentrates enriched in useful mineral substances, from which gold, silver and other metallic and non-metallic associated elements can be obtained, as well as to a composition of steel of which the used equipments are made. According to the invention, the flow sheet comprises the ore classification, crushing and grinding, hydraulic classifications, gravitational concentration, flotation, decantation, filtration, drying, and dry purification of the sulphur dioxide, by pneumatic classification, after burning the sulphur from the ores with sulphide content, for recovering the metallic and non-metallic elements with relatively low volatilisation temperatures from dust. As claimed by the invention, the composition comprises: 0.56...0.42% C, 0.17...0.35% Si, 0.50...0.80% Mu, P=0.025%, S=0.025%, 4.80...5.80% Cr, 0.80...1.40% Mo, 0.25...0.50% V and it is used for manufacturing both rolled sheet metal and cast or forged pieces that various equipments are made of and where the technological flow sheet is applied according to the Claim 1.