Preparation of Nickel–Iron Concentrate from Low-Grade Laterite Nickel Ore by Solid-State Metalized Reduction and Magnetic Separation

IF 2.2 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Minerals Pub Date : 2024-09-11 DOI:10.3390/min14090926

Wei Wang, Sichun Hu, Shoujing Wang, Hongzhao Liu, Deshui Yu, Lin Liu, Hongliang Wang, Ke Wang

引用次数: 0

Abstract

In this paper, the process of solid-state metalized reduction and magnetic separation was investigated for preparation of nickel–iron concentrate from a low-grade laterite nickel ore. The effects of reduction temperature, reduction time, amount of dosages, and magnetic field strength on grades and recoveries of nickel and iron were studied. The results showed that nickel–iron concentrate with a nickel grade of 7.32%, nickel recovery of 81.84%, iron grade of 78.74%, and iron recovery of 69.78% were obtained under the conditions of a reduction temperature of 1200 °C, reduction time of 120 min, calcium fluoride addition of 12%, ferric oxide addition of 10%, coal addition of 12%, and magnetic field strength of 170 kA/m.

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通过固态金属化还原和磁选从低品位红土镍矿制备镍铁精矿

本文研究了从低品位红土镍矿中制备镍铁精矿的固态金属化还原和磁选过程。研究了还原温度、还原时间、剂量和磁场强度对镍和铁的品位和回收率的影响。结果表明，在还原温度为 1200 °C、还原时间为 120 分钟、氟化钙添加量为 12%、氧化铁添加量为 10%、煤添加量为 12%、磁场强度为 170 kA/m 的条件下，可获得镍品位为 7.32%、镍回收率为 81.84%、铁品位为 78.74%、铁回收率为 69.78%的镍铁精矿。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Minerals MINERALOGY-MINING & MINERAL PROCESSING

CiteScore

4.10

自引率

20.00%

发文量

1351

审稿时长

19.04 days

期刊介绍： Minerals (ISSN 2075-163X) is an international open access journal that covers the broad field of mineralogy, economic mineral resources, mineral exploration, innovative mining techniques and advances in mineral processing. It publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.