采用TOPS-99和Cyanex 272钠盐从镍红土矿细菌浸出液中萃取锌、锰、钴和镍

中国有色金属学报(英文版), 2016, 26(1): 301-309. doi: 10.1016/S1003-6326(16)64119-5

采用TOPS-99和Cyanex 272钠盐从镍红土矿细菌浸出液中萃取锌、锰、钴和镍

R.K.MISHRA ^1, , P.C.ROUT ^2, , K.SARANGI ^3, , K.C.NATHSARMA ^4,

1.Council of Scientific and Industrial Research, Institute of Minerals and Materials Technology,Bhubaneswar 751 013, Odisha, India

2.Council of Scientific and Industrial Research, Institute of Minerals and Materials Technology,Bhubaneswar 751 013, Odisha, India;Academy of Scientific and Innovative Research, Chennai 600 113, Tamilnadu, India

3.Council of Scientific and Industrial Research, Institute of Minerals and Materials Technology,Bhubaneswar 751 013, Odisha, India;Academy of Scientific and Innovative Research, Chennai 600 113, Tamilnadu, India

4.Council of Scientific and Industrial Research, Institute of Minerals and Materials Technology,Bhubaneswar 751 013, Odisha, India

关键词：镍红土矿 , 锰 , 镍 , TOPS-99 , Cyanex 272

Solvent extraction of zinc, manganese, cobalt and nickel from nickel laterite bacterial leach liquor using sodium salts of TOPS-99 and Cyanex 272

Keywords： nickel laterite , manganese , nickel , TOPS-99 , Cyanex 272

在煤油中采用TOPS-99和Cyanex 272钠盐从镍红土矿细菌浸出液中提取与分离锌、锰、钴和镍.采用沉淀法去除不需要的金属离子,使用溶剂萃取提取/分离锌、锰、钴和镍.生物浸出铬铁矿表土样品得到的镍红土矿浸出液中含有3.72 g/L Fe,2.08 g/L Al,0.44 g/L Ni,0.02 g/L Co,0.13 g/LMn,0.14 g/L Zn和0.22 g/L Cr.在pH4时采用CaCO3沉积去除100％ Fe,96.98％ Al和70.42％ Cr,随后在pH 5.4时采用50％氨沉积,溶液中剩有Al和Cr.沉积后,采用0.1 mol/L TOPS-99从无铁、铝和铬的浸出液中提取锌,随后采用0.04 mol/L NaTOPS-99提取锰.锌和锰的产率分别是97.77％和95.63％.提取锰后,再采用0.0125 mol/L NaCyanex 272从浸取液去除钴,最后采用0.12 mol/L NaTOPS-99提取镍,其产率达99.84％.采用稀硫酸去除浸出液中的有机相.

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