Extraction of Chromium from Carbon Ferrochromium Residual Wastes

6th International Scientific Practical Conference on Innovative Technologies and Economics in Engineering

工业技术;经济学

Lazarevskiy, P.P.^1 ; Gizatulin, R.A.^2,3 ; Romanenko, Yu.E.^1 ; Valuev, D.V.^2,3 ; Valueva, A.V.^2,3 ; Serikbol, A.^2,3

Siberian State Industrial University, Kirova str, 42, Kemerovo Region, Novokuznetsk

654007, Russia^1

Leningradskaya str, 26, Kemerovo region, Yurga

652050, Russia^2

Yurga Technological Institute Branch, Tomsk Polytechnic University, Russia^3

关键词: Aluminothermic methods;    Chromium hydroxide;    Ferrochrome production;    Granulometric compositions;    Hydrometallurgical methods;    Metallic chromium;    Residual wastes;    Smelting process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/91/1/012038/pdf
DOI  :  10.1088/1757-899X/91/1/012038

学科分类：工业工程学

来源: IOP

【 摘 要 】

This work reports the problem of processing residual wastes after producing carbon ferrochrome by recycling dust using a hydrometallurgical method with the purpose of extracting the basic component - chromium, The X-ray diffraction analysis results, chemical and granulometric compositions of dust from the carbon ferrochrome production are given, The method for the production of chemical-enrichment concentrate (CEC) by processing ferrous dust is described, with obtaining a middling product - sodium mono-chromate with its further reduction to chromium hydroxide, followed by autoclave leaching, and resulting in the production of chemically enriched chrome concentrate, The plant used for autoclave leaching and filtering is schematically depicted, The smelting process of metallic chromium using the ladle aluminothermic method is described,