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在50年代初期,比利时卢万(Louvain)大学的布雷克波特(Breckpot)教授与霍博肯冶金总公司的试验室共同研究,发现用硫化镍去极化置换沉淀法从硫酸钻溶液中分离镍是可能的,后来以锌沉淀进行的这种反应发展成扎伊尔矿业总公司西土鲁和卢易卢(Shituru,Luilu Gecamine)钴厂的净(?)方法。由于对高质量产品不断增长的需求和降低生产成本的需要,对硫化镍和硫化锌沉淀的关键参数做了许多试验室和中间工厂研究,尤其是对用元素硫或硫氢化钠沉淀的钴、镍、锌硫化物的相对稳定性与pH值和氧化还原电位的关系做了试验,这些试验已导致生产实践的改善并给新的发展带来可能。同样,对硫化物沉淀的处理也作了考虑。
In the early 1950s, Professor Breckpot of the University of Louvain, Belgium, and the lab of Hoboken Metallurgical Corp. studied together and found that nickel sulphate depolarization displacement precipitation was used to separate sulfuric acid from the drilling solution Nickel was possible, and this reaction, which was later carried out with zinc precipitation, developed into a net (?) Method for the Zituro and Luilu Gecamine cobalt plants at the Zaire Mining Corporation. Due to the growing demand for high quality products and the need to reduce manufacturing costs, many laboratory and intermediate plant studies have been conducted on the key parameters of nickel sulphide and zinc sulfide precipitation, especially for cobalt precipitated with elemental sulfur or sodium hydrosulfide, The relative stability of nickel and zinc sulphides was tested in relation to pH and redox potential and these tests have led to improvements in production practices and to new developments. Similarly, the treatment of sulfide precipitation is also considered.