Gorniy vestnik Uzbekistana


New progressive methods include air-purged drilling. This method is fundamentally different from washing with a liquid in that a gaseous agent, in particular compressed air, is used to clean the bottom of the sludge. Drilling practice has proven that the use of compressed air as a cleaning agent provides a significant increase in the mechani- cal drilling speeds and reduces the time required to eliminate geological complications, due to which

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1. Blokhin A.A., Kopyrin A.A., Mikhailenko M.A. Extraction of rhenium from sulfuric acid solutions using a composite ion exchanger based on a polymer carrier and trialkylamine // Non-ferrous metals. - 2005. - No. 2. - pp. 59-62. 2. Troshkina I.D., G.A. Khasanova, AM, Chekmarev Sorption extraction of trace amounts of rhenium from washing sulfuric acid // Non-ferrous metals. - 2000. - No. 9. - pp. 134-137. 3. Troshkina I.D., Serbin A.M., Khaing Zo Naing. Sorption extraction of rhenium from sulfuric acid solutions by amine-containing impregnates // Sorption and chromato- graphic processes. - 2006. - T.6. - Issue 6. - pp. 1022-1027. 4. Zakharyan S.V. The study of sorption methods for the extraction of rhenium from washing acid and the development of technology for producing high-purity ammoni- um perrenate: Abstract. diss. Cand. tech. sciences. - M.: 2012. 22 p.



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