Metallurgy, Vol. 66 No. 1, 2027.
Original scientific paper
https://doi.org/https://doi.org/10.64486/m.66.1.3
Experimental Study on Direct Reduction of Laterite Nickel Ore Leaching Residue Pellets
F. Yang
; Wuhan University of Science and Technology, College of Resources and Environmental Engineering, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan, China
CH. Pi
; Wuhan University of Science and Technology, College of Resources and Environmental Engi-neering, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan, China
ZH. Q. Guo
; Wuhan University of Science and Technology, College of Resources and Environmental Engi-neering, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan, China
K. Xu
; Wuhan University of Science and Technology, College of Resources and Environmental Engi-neering, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan, China
J. Y. He
; Wuhan University of Science and Technology, College of Resources and Environmental Engi-neering, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan, China
Abstract
Pellets were formed by adding carbon to laterite nickel ore leaching residue in the laboratory and then reduction roasting was carried out. The effects of reduction conditions such as the ratio of reducing agents, reduction temperature, and reduction time on the products of direct reduction iron (total iron content and iron recovery rate) were studied. The research results show that under the conditions of a reducing agent (coal powder) ratio of 16 %, a reduction temperature of 1200 °C, and a reduction time of 40 minutes, the total iron content of directly reduced iron is 93.10 %, and the iron recovery rate is 96 %.
Keywords
leaching residue of laterite nickel ore pellets; direct reduction; reducing agent ratio; reduction temperature; reduction time
Hrčak ID:
350068
URI
Publication date:
1.1.2027.
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