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Valuable Recovery Technology and Resource Utilization of Chromium-Containing Metallurgical Dust and Slag: A Review.

Authors :
Xu, Ju
Liu, Mengke
Ma, Guojun
Zheng, Dingli
Zhang, Xiang
Hou, Yanglai
Source :
Metals (2075-4701); Oct2023, Vol. 13 Issue 10, p1768, 21p
Publication Year :
2023

Abstract

As a type of metallurgical solid waste with a significant output, chromium-containing metallurgical dust and slag are gaining increasing attention. They mainly include stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag, which contain significant amounts of valuable elements, such as chromium, iron, and zinc, as well as large amounts of toxic substances, such as hexavalent chromium. Achieving the harmless and resourceful comprehensive utilization of chromium-containing metallurgical dust and slag is of great significance to ensuring environmental safety and the sustainable development of resources. This paper outlines the physicochemical properties of stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag. The current treatment technologies of chromium-containing metallurgical dust and slag by hydrometallurgy, the pyrometallurgical process, and the stabilization/solidification process are introduced. Moreover, the comprehensive utilization of resources of chromium-containing metallurgical dust and slag in the preparation processes of construction materials, glass ceramics, and refractories is elaborated. The aim of this paper is to provide guidance for exploring effective technology to solve the problem of chromium-containing metallurgical dust and slag. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20754701
Volume :
13
Issue :
10
Database :
Complementary Index
Journal :
Metals (2075-4701)
Publication Type :
Academic Journal
Accession number :
173315669
Full Text :
https://doi.org/10.3390/met13101768