Preliminary communication

Beneficiation of chrome slurry tailings at Donskoy mining and beneficiation plant (DMBP) JSC to produce hard pellets

I. Bondarenko ; JMOB Satbayev University, Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
N. Serzhanova ; JMOB Satbayev University, Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
Y. Kuldeev ; JMOB Satbayev University, Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
N. Sadykov ; JMOB Satbayev University, Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
A. Tastanova ; JMOB Satbayev University, Institute of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan

Abstract

The article is about the problem of beneficiation of finely dispersed chromium slurry tailings of “Donskoy Mining and Beneficiation Plant” JSC by chemical and gravitation methods. Chemical destruction of chromium spinelids by sulphation with a mixture of ammonium sulphate and sulphuric acid enables to transfer a part of magnesium oxide to a water-soluble state and further gravitation beneficiation on concentration tables to obtain a fine-grained rich chromium concentrate. Silica, calcium, and iron oxide additives are used to produce pellets from the fine chrome concentrate, serving as binding agents and enabling the production of hard chrome pellets during roasting. In the future, roasted pellets will be used in the smelting of high-carbon ferrochrome in electric furnaces.

Keywords

chrome oxide; slurries; chemical beneficiation of chromite; chrome pellet composition; crushing strength of pellets

Hrčak ID:

274034

URI

https://hrcak.srce.hr/274034

Publication date:

1.7.2022.

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