摘要
镍精矿氯气浸出液经除铁后 ,用萃取剂N2 35 萃取净化 ,研究了有机相组成对除杂效果的影响 ;确定了最佳的有机相组成为 2 5 %N2 35 — 12 %异构醇— 63 %磺化煤油 (体积分数 ) ;测定了有机相的钴饱和容量并进行了相应的串级试验。结果表明 :净化后溶液中 ρ(Ni) >2 0 0g L ,ρ(Ni) ρ(Co) >5 0 0 0 0 ,并且溶液中Cu、Fe、Mn、Zn等杂质含量也达到了生产 1号电镍的技术要求 ;产出的氯化钴溶液中 ρ(Co) >110g L ,ρ(Co) ρ(Ni) >5 0 0 0 ,实现了钴的富集。
In the experiments of purifying the solution of chlorine leaching and removing iron from nickel concentrate with N235, the effects of organic phase composition on purifying efficiency have been studied. From the results obtained, the optimal organic phase composition is found to be 25% N235 + 12% isomerous alcohol + 63% sulfonic kerosene (V/V) and the saturated content of cobalt in organic phase is 8 g/L. And then the serial experiment is carried out. The results show that at the given organic phase composition, the purified solution contains ρ(Ni) > 200 g/L, ρ(Ni) / ρ(Co) > 50 000 and the contents of Cu, Fe, Mn, Zn meet the technical criterion of 1# nickel electrolyte. The cobalt chloride solution contains ρ(Co) > 110g/L, ρ(Co) / ρ(Ni) > 5 000 and the enrichment of cobalt has been achieved. The technical process is simple, stable and reliable.
出处
《矿冶工程》
EI
CAS
CSCD
北大核心
2001年第1期56-58,共3页
Mining and Metallurgical Engineering
