Abstract
An urgent issue for the Republic of Kazakhstan is the processing of man-made waste, in particular baritecontaining waste, and the expansion of the raw material base of non-ferrous metallurgy. Currently, the Republic of Kazakhstan has a large amount of man-made waste: ash dumps of power plants, waste from processing plants, waste from metallurgical production. Man-made waste causes great harm to the environment and pollutes the air, water and soil. In addition, they are a valuable raw material for obtaining high quality products. Waste from flotation enrichment of barite-polymetallic ore from the Karagaily deposit is the raw material under study in this article. In order to determine the effectiveness of the use of the flotation enrichment method without preliminary desiliconization, studies were carried out on the initial barite raw material of the composition, wt., %: SiO2 – 40.9; BaSO4 – 32.6; Al2O3 – 5.3; Fe – 4.6; S – 6.8; Zn – 0.6; Pb – 0.5; Cu – 0.2. Three open cycle flotation schemes were considered: a simple flotation scheme using potassium butyl xanthate as a collector for non-ferrous minerals and T-92 frother; simple flotation scheme with the same reagents and additionally with lime; collective-selective flotation scheme. For each cycle, results were obtained and the content and extraction of a valuable component into concentrates were calculated.