矿产综合利用2025，Vol.46Issue(2)：184-188,195,6.DOI:10.3969/j.issn.1000-6532.2025.02.026
从国外某镍钴矿中综合回收铬选矿实验
Test on Comprehensive Recovery of Chromium from a Foreign Nickel-cobalt Ore
孟德永 1孙爱辉 1邹坚坚2
作者信息
- 1. 瑞木镍钴管理(中冶)有限公司,北京 100020
- 2. 广东省科学院资源利用与稀土开发研究所,稀有金属分离与综合利用国家重点实验室,广东 广州 510651
- 折叠
摘要
Abstract
A foreign nickel-cobalt ore contains 1.10%nickel and 0.11%cobalt,which mainly exists in cryptocrystalline clay minerals in the form of ion adsorption.The ore contains 3.96%Cr2O3,and chromium basically exists in the form of chromite,which has the value of comprehensive recovery.In view of the high content of nickel and cobalt in the ore,and in clay minerals in the form of adsorption,clay minerals are easily sloughed during the grinding process,resulting in nickel and cobalt are enriched to the fine particle level and chromium basically exists in the form of chromite.During the grinding process,chromite particles of varying sizes are produced.Combined with the characteristics of relatively large gravity,the technical idea of grading and classifying after ore grinding,recovery of coarse-grained chromite by gravity separation,and recovery of fine-grained chromite by flotation is proposed adopting the process of"cyclone classifica-tion-spiral chute roughing-shaking table cleaning-shaking table tailings flotation"and selecting high-efficiency chromite collector GC to enhance the recovery of fine-grained chromite.The results of the whole process study show that chromite concentrate with Cr2O3 grade of 46.30%and Cr2O3 recovery rate of 71.95%can be obtained.At the same time,the nickel-cobalt slurry with Cr2O3 content of only 1.16%was obtained,creating favorable conditions for subsequent metallurgical recovery of nickel-cobalt.关键词
矿物加工工程/镍/钴/铬/综合回收Key words
Mineral Processing Engineering/Nickel/Cobalt/Chromium/Comprehensive recovery分类
矿山工程引用本文复制引用
孟德永,孙爱辉,邹坚坚..从国外某镍钴矿中综合回收铬选矿实验[J].矿产综合利用,2025,46(2):184-188,195,6.
