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Gorniy vestnik Uzbekistana

Abstract

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

First Page

75

Last Page

78

References

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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