Metallurgy, Vol. 61 No. 1, 2022.
Preliminary communication
Coverter sludge dezincification by hydrometallurgical method
A. K. Narembekova
; Karaganda Technical University, Karaganda, Kazakhstan
B. B. Kаtrenov
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
K. Zh. Zhumashev
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
Abstract
The article presents the results of studying the process of sludge dezincification by hydrometallurgical method: leaching of zinc from sludge with hydrochloric acid solutions. The object of the study was converter sludge with the zinc content of 1,24 %. On the basis of experimental data, the optimal conditions of sludge leaching were established: the concentration of hydrochloric acid in the solution was 15 %, the leaching time was 90 min, the liquid : solid phase L:S ratio was 6:1. The separated iron cake contained 0,43 % zinc and could be returned to the production cycle at the stage of agglomeration of iron ore raw materials.
Keywords
hydrometallurgy; converter sludge; zinc transition into the solution; leaching; hydrochloric acid
Hrčak ID:
262420
URI
Publication date:
3.1.2022.
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