中国矿山工程

Taking a certain laterite nickel ore as the research object, this study explores the feasibility of using mineral processing technology to remove the chromite, in response to the problem of its containing chromite being unfavorable for subsequent wet smelting. The experimental results show that the use of a hydraulic cyclone classification-shaking table gravity- magnetic separation process can effectively remove chromite from laterite nickel ore, with a chromite removal rate of 50.99%. The chromium grade of chromite ore is 34.32%, and the chromium iron ratio is 2.03, which meets the smelting requirements and achieves comprehensive resource utilization. Meanwhile, the distribution rates of nickel and cobalt in wet metallurgical products are 99.51% and 97.17%, respectively, indicating a relatively low loss rate of nickel and cobalt. This study can effectively remove chromite from laterite nickel ore, providing important guidance for the comprehensive development and utilization of this type of laterite nickel ore.