Abstract

The oxidized nickel ores from the Buruktal deposit (Orenburg oblast) contain significant sources of nickel (1 377 000 t). However, these ores are fairly poor in nickel (0.8–1.0%) and cobalt (0.04–0.07%) as compared to foreign deposits. The results of studying the possibility of nickel recovery by hydrometallurgical processing of ferriferous oxidized nickel (limonite) ore with weak solutions of sulfuric acid are presented. The studies are carried out for prereduced limonite ore. As a result of reduction, entire nickel and partially iron present in the initial ore are reduced to the metallic state to form an NiFe alloy. The influence of various factors on the degree of recovery of nickel into a solution and the acid consumption is studied.

中文翻译：

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亚铁还原氧化镍矿中硫酸浸出的一些特征

摘要

来自Buruktal矿床（奥伦堡州）的氧化镍矿石含有大量镍（1 377 000吨）。然而，与外国矿床相比，这些矿石的镍（0.8-1.0％）和钴（0.04-0.07％）相当贫乏。提出了研究用弱硫酸溶液湿法处理亚铁氧化镍（褐铁矿）矿石的湿法冶金法回收镍的结果。该研究是针对预先还原的褐铁矿进行的。作为还原的结果，存在于初始矿石中的全部镍和部分铁被还原为金属态以形成NiFe合金。研究了各种因素对镍在溶液中的回收率和酸消耗的影响。