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  • 氧化钴是怎么制作生产的?
  • 本站编辑:桐乡市恒瑞化工有限公司发布日期:2018-08-30 13:19 浏览次数:

钴矿用球磨机粉碎到粒度约-100目大小后,将矿浆打到溶解槽,用硫酸或盐酸溶解后压滤,将滤液加热,往热溶液中加入碳酸钠、硫化钠、氟化钠、硫代硫酸钠等化工原料作为除杂剂,除去溶液中的大量的铜、铁、钙、镁、铅、锌等杂质。少量的杂质随溶液进入下一道工序,利用P204[磷酸二异辛酯]作萃取剂,将钴、镍与铜铁等杂质元素分离,萃取液用稀盐酸反萃(洗脱),钴、镍进入水相中,将含钴、镍溶液送入含P507[2-乙基己基磷酸-2-乙基己基酯]的萃取槽进行钴镍分离。
Cobalt ore ball mill grinding to the size of about - 100 mesh, the pulp is beaten to the dissolution tank, dissolved with sulfuric acid or hydrochloric acid, filtrate is pressed, heated, into the hot solution to add sodium carbonate, sodium sulfide, sodium fluoride, sodium thiosulfate and other chemical raw materials as impurity removal agent, remove a large number of copper, iron, calcium, magnesium, lead, lead in the solution. Zinc and other impurities. A small amount of impurities with the solution into the next process, the use of P204 [diisooctyl phosphate] as extractant, cobalt, nickel and copper and iron and other impurities were separated, the extraction solution with dilute hydrochloric acid stripping (elution), cobalt, nickel into the aqueous phase, cobalt, nickel solution into the extraction tank containing P507 [2-ethylhexyl phosphate-2-ethylhexyl ester] cobalt Nickel separation.
含镍溶液作为副产品生产硫酸镍,含钴溶液经浓缩达到规定的浓度后用盐酸反萃,生成氯化钴溶液,用草酸铵沉淀钴,转化为草酸钴沉淀,将沉淀物干燥后以草酸钴形式作为产品使用。草酸钴经高温锻烧后生成氧化钴,经氢气还原后制成钴粉。经钴镍分离后的钴溶液,如果用硫酸溶液洗脱,可制成硫酸钴产品,用醋酸洗脱可制成醋酸钴,氯化钴溶液用碳酸钠沉淀可制成碳酸钴,用于生产钴粉、氧化亚钴或四氧化三钴。
Nickel-containing solution is used as a by-product to produce nickel sulfate. The cobalt-containing solution is concentrated to the prescribed concentration and then stripped with hydrochloric acid to form cobalt chloride solution. The cobalt is precipitated with ammonium oxalate and converted to cobalt oxalate precipitation. The precipitate is dried and used as a product in the form of cobalt oxalate. Cobalt oxalate is calcined at high temperature to form cobalt oxide, which is reduced by hydrogen to form cobalt powder. The cobalt solution after separation of cobalt and nickel can be made into cobalt sulphate product if it is eluted with sulphuric acid solution, and cobalt acetate can be made by elution with acetic acid, and cobalt carbonate can be made by precipitation of cobalt chloride solution with sodium carbonate, which can be used to produce cobalt powder, cobalt oxide or cobalt trioxide.

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