Hydrometallurgical processing of a ferrous cake accompanied by nonferrous-metal recovery and pigment production

Motov, D. L.; Vasekha, M. V.

doi:10.1134/s0036029507030020

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Cited by 3 publications

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“…The reaction mixture was kept for 1 h under permanent agitation. After the suspension settled, equal portions of the liquid phase ware taken for analysis and the rest was converted to a red iron oxide pigment by the scheme describe in [5].…”

Section: Methodsmentioning

confidence: 99%

Sulfite solutions for conversion of iron hydrate wastes formed at copper-nickel industries

Vasekha

2012

Russ J Appl Chem

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Possibility was examined of using spent solutions of sulfur dioxide gas sorbents, together with sodium sulfi te and pyrosulfi te, for conversion of iron hydrate wastes produced by copper-nickel industries to red iron oxide pigment.Effl uent gases from nonferrous metallurgy plants and exhaust gases of sulfuric acid shops are most frequently purifi ed to remove sulfur(IV) oxide by alkaline purifi cation methods and, in particular, by the sodium sulfi te-bisulfi te technique employing soda ash or its mixture with sodium bicarbonate as SO 2 absorbent. Spent chemisorbents have the form of a dry mixture or a solution of sulfi tes and are wastes that should be buried or utilized [1].In absorption of sulfur(IV) oxide by a soda ash solution, the following processes occur [2]:

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Section: Methodsmentioning

confidence: 99%