红土镍矿日益成为重要的经济可行的镍资源。然而,低成本的常压浸出实际方案却因回收率低和形成对环境有危害的残渣(如黄钾铁矾)而受到一定制约。因此,采用易操作的实验室方法确定矿石、残渣中镍的矿物学特性,以及残渣中二次沉淀物的组成,作为日后优化浸出参数的方法是非常重要的。为 Laterite nickel is increasingly becoming an economically viable nickel resource. However, the practical solution of low-cost atmospheric leaching is constrained by the low recovery rate and the formation of environmentally-friendly residues such as jarosite. Therefore, it is important to use readily available laboratory methods to determine the ore, the mineralogy of nickel in the residue, and the composition of the secondary precipitate in the residue as a means of optimizing the extraction parameters in the future. for