The choice of methods of gold-arsenic ores processing (Novotroitsk deposit) taking into account their technological peculiarities

Strukov, K. I.; Plotnikov, S. N.; Zyryanova, L. A.; Nikolaev, Yu. L.

doi:10.17580/tsm.2017.06.05

Cited by 1 publication

(1 citation statement)

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“…For example, these methods include oxidationsulfiding roasting of granulated concentrate with arsenic removal in a low-toxic form [ [11], [12]], and heating of arsenopyrite-pyrite-containing concentrates in reducing or sulfur-containing media with arsenic conversion to sulfide sublimates [ [13], [14]]. However, these methods have not found industrial application due to the complexity of strict control over the oxidative and sulfur potential of the gas phase.…”

Section: Introductionmentioning

confidence: 99%

Vacuum sublimators with rheological displacement of the dispersed medium

Trebukhov¹,

Володин²,

Nitsenko³

et al. 2022

KIMS/CUMR/MShKP

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Based on the analysis of designs and technological processes carried out in vacuum electric furnaces developed to date for the processing of dispersed materials by sublimation of volatile components from them, and problems associated with technological processes, technical solutions are proposed in the present work in which the movement of concentrate is carried out due to rheological properties with direct heating by radiation from the heater to the surface of the transported and mixing raw materials. During the development of the equipment, a concept was adopted in which the movement of material in the sublimation zone of the furnace is ensured due to rheological properties, which opens up the possibility of using materials inert to the sulfide atmosphere and realizing heat transfer by radiation to open areas of dispersed material. Technological tests on sublimation of arsenic sulfide compounds from granulated concentrates of Nezhdaninsky and Bakyrchik deposits have confirmed the prospects of such a constructive design of sublimation processes. The application of the developed equipment in practice will ensure the technical and economic efficiency of production in compliance with all environmental requirements with minimal impact on the environment, which is currently a fundamental indicator when choosing a particular technology.

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Section: Introductionmentioning

confidence: 99%