Engineering & Technologies, 2016, 9(6), 811-820 ~ ~ ~ УДК 661.645:669.21 Development of a Roasting Process for Arsenic Gold-Bearing Concentrates to Recover Arsenic Into a Low-Toxic Product and Produce Calcine Suitable for Further Processing Denis V. Rumiantsev*, Vladimir A. Popov and Lev Sh. <...> Tsemekhman Gipronickel Institute 11 Grazhdansky Ave., Saint-Petersburg, 195220, Russia Received 14.03.2016, received in revised form 08.05.2016, accepted 19.07.2016 The processes of sulphiding roasting of arsenopyrite concentrate with arsenic sulfi de transition into the gas phase have been studied under laboratory and large-scale laboratory conditions. <...> The roasting shall be carried out in neutral atmosphere (nitrogen or complete fuel combustion products), pyrite concentrate is recommended to use as sulphidizer, mixture of arsenopyrite concentrate and sulphidizer previously undergoes briquetting. <...> Based on the investigation results, the process of gold-containing arsenopyrites treatment to produce low-hazardous sublimates and calcine suitable for further gold recovery has been proposed. <...> Development of a roasting process for arsenic goldbearing concentrates to recover arsenic into a low-toxic product and produce calcine suitable for further processing, J. Sib. <...> All rights reserved * Corresponding author E-mail address: dvrum@nickel.spb.ru # 811 # Denis V. Rumiantsev, Vladimir A. Popov… Development of a Roasting Process for Arsenic Gold-Bearing Concentrates… Разработка технологии обжига мышьяковистых золотосодержащих концентратов с выделением мышьяка в низкотоксичный продукт и получением годного для дальнейшей переработки огарка Д. <...> Introduction In today’s conditions of ever increasing gold production, the mining industry is forced to involve refractory arsenic (arsenopyrite) ores in processing. <...> According to the literature, one of the most promising options to prepare arsenopyrite gold concentrates for precious metals recovery is their roasting to recover arsenic into non-toxic sulfi de sublimates. <...> Some of the offered options envisage oxidation-sulfi dizing roasting [1], the use of water vapor [2], and the implementation of the process in a fl uidized bed furnace [3], however, they increase the risk of production of toxic arsenic compounds (trioxide, arsenic hydride) and their transition to waste, making the latter diffi cult to dispose. <...> The purpose of this work was to develop a process of dearsenifi cation of arsenic gold <...>