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鈷矿中多伴生有鎳。因此,在提炼鈷的同时必須考虑鎳的回收。我厂在生产鈷的工艺过程中,鎳残留在提鈷后的母液內,并用純碱将母液中残留的鈷与鎳沉淀为碳酸盐,其中含Co 5～10％,Ni20～26％,习慣称其为鈷渣。經过多次試驗研究,我們已成功地从鈷渣中生产出七水結晶硫酸鎳,并正式投入了工业生产。半年多的生产实践表明,产品质量全部符合商品硫酸鎳标
Cobalt ore often associated with nickel. Therefore, the extraction of cobalt must be considered in conjunction with nickel recovery. I plant in the production of cobalt process, the remaining nickel in the mother liquor after mentioning cobalt and soda ash in the mother liquor remaining in the nickel and nickel precipitate as carbonate, including Co 5 ~ 10%, Ni 20 ~ 26% It is customary to call it cobalt slag. After many trial and error studies, we have successfully produced the heptahydrate crystalline nickel sulfate from cobalt slag and officially put it into industrial production. More than six months of production practice shows that product quality all in line with the standard nickel sulfate