Chemistry 4 (2016 9) 504-514 ~ ~ ~ УДК 622.7 Extraction Colloidal Gold from Solutions Victor I. Bragina Victor I. Rostovtsevb Aleksandra V. Romanenko*a , Irina I. Baksheyevab , , and Anatoliy M. Zhizhayevc a 79 Svobodny, Krasnoyarsk, 660041, Russia b c Siberian Federal University Institute of mining SB RAS 54 Krasniy, Novosibirsk, 630091, Russia Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia Received 18.07.2016, received in revised form 26.09.2016, accepted 10.10.2016 The article discusses a gold extraction method based on the use dihydrothioctic acid as the dispersing reagent. <...> The possible use cases dihydrothioctic acid and optimal processing conditions are looked in the article. <...> Keywords: nanoparticles, gold, colloid functionalization, fi nely impregnated ores, refractory gold ores, magnetic separation, magnetic colloid. <...> All rights reserved * Corresponding author E-mail address: ali4ka1993@list.ru # 504 # Aleksandra V. Romanenko, Victor I. Bragin… Extraction Colloidal Gold from Solutions Извлечение коллоидного золота из растворов А. <...> Ключевые слова: наночастицы, золото, функционализация коллоида, тонковкрапленные руды, руды с упорным золотом, магнитная сепарация, магнитный коллоид. <...> Introduction Extraction hydrometallurgical methods of nonferrous and noble metals from secondary raw and technogenic oresare becoming more widespread with the decline of resource quality. <...> Extraction of nonferrous and noble metals from processingmedium is essential whether protection the environment ormetals value [1, 2]. <...> Hydrometallurgy is the most widely used in the gold extraction. <...> Cyanidationis the most extended method of gold recovery by changing over to the solution liquid phase, known as MacArthurForrest process [3]. <...> Gold recovery by cyanidation is limited to mineral composition of ores. <...> Mined gold contains various impurities, so before the cyanide leachingthe ore is subjected to special high purity processes, which are performed at refi neries. # 505 # Aleksandra V. Romanenko, Victor I. Bragin… Extraction Colloidal Gold from Solutions They use extraction, adsorption and ion exchange for the extraction of metals from the productive and circulating <...>