一、绪言暗鎳蛇紋石属于不能直接以选矿处理的难选矿石,以前曾有若干报告提出所謂离析焙烧法,配合添加氯化物及固体还原剂进行焙烧,析出金属鎳,以改善其可选性,本研究所也在应用上述方法的原理处理暗鎳蛇紋石以后,发現可以得到高品位,高回收率的鎳精矿。以下叙述实驗結果的概要。 I. INTRODUCTION Dark nickel serpentine belongs to refractory ore that can not be directly beneficiated. There have been several reports before the so-called segregation roasting method, with the addition of chlorides and solid reducing agents for roasting and precipitation of metallic nickel to improve their selectivity , The Institute also applied the principle of the above method to deal with dark nickel serpentine and found that you can get high grade, high recovery of nickel concentrate. The following is a summary of the experimental results.