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Gorniy vestnik Uzbekistana

Abstract

The article presents the results of laboratory studies on the extraction of iron from acidic waste solutions of the process of bacterial leaching of sulfide gold-bearing concentrates. The aim of this work is to extract iron from technogenic arsenic-containing acidic wastes, to increase the efficiency of using mineral raw materials with obtaining additional products. The studies were carried out on a solution taken from the biooxidation unit of the NMMC. The main task of this work was to determine the optimal parameters for the processing of acid waste solutions and the separation of iron from the solution without arsenic impurities. Based on the results of laboratory studies, a technological scheme was proposed that includes the precipitation of iron and arsenic from acidic effluents with ammonia water and the removal of arsenic from the precipitate by dissolving with caustic soda.

First Page

73

Last Page

75

References

1.Sanakulov K.S., Ergashev U.A. Theory and practice of development of processing of gold-bearing refractory ores of Kyzylkum, Tashkent. SE "NIIMR", 2014, 297 p. 2.Peter V.A., Rashidov I.Sh., Oliver I.V., Ergashev U.A., Installation of BIOKS Kokpatas. Mining Bulletin of Uzbekistan, 2008, No. 3, рр. 12-14. 3.Sanakulov K.S. On the issue of substantiation and development of technology for processing waste from mining and metallurgical industries, Gorny Vestnik of Uzbekistan. No. 1, 2009, pp. 27-39. 4.Utin E.V. "Neutralization and purification from arsenic of solutions after bacterial leaching of refractory gold-arsenic concentrates." Thesis. Moscow, 1996. 25 pp 5.Sanakulov U.K., Tazhibaev D.Yu. "Method for processing acidic waste solutions of the biooxidation process of sulfide flotation concentrates." Utility model patent FAP 03129 dated 05.06.2018 6.Sovmen V.K., Guskov V.N., Bely A.V. and others. Processing of gold-bearing ores using bacterial oxidation in the Far North. Novosibirsk, Nauka, 2007, 144 pp. 7.Vapoev Kh.M., Tagaev I.A., Khusenov K.Sh., Tokhirova N.B., Study of the nature and degree of solubility of some elements in the composition of sulfide ores. Mining Bulletin of Uzbekistan, 2019, No. 2, рр. 71-75 8.Sanakulov U.K., Ergashev U.A. Pilot industrial tests of obtaining pigments from acidic effluents of a bioleaching unit. International conference “Comprehensive innovative development of the Zarafshan region: achievements, problems and prospects”. Navoiy: publishing house named after Alisher Navoiy, 2019. рр. 204-207.

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