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研究了硫酸铵-乙醇-铬天青S体系萃取分离和富集铝的行为及与一些金属离子分离的条件。硫酸铵能使乙醇的水溶液分成两相,在分相过程中,Al3+和铬天青S(CAS)生成的Al(CAS)2-能被乙醇相完全萃取,Pb2+、Pd2+、Cr3+、Ru3+、Ir4+、Ni2+、Mg2+、Co2+和Fe2+不被萃取而和Al3+分离。
The separation and concentration of aluminum by ammonium sulfate-ethanol-chrome azure S system were studied and the conditions of separation from some metal ions were studied. Ammonium sulfate can separate the aqueous solution of ethanol into two phases. During the phase separation, Al (CAS) 2- formed by Al3 + and chrome azure S (CAS) can be completely extracted by ethanol, and Pb2 +, Pd2 +, Cr3 +, Ru3 +, Ir4 + , Ni2 +, Mg2 +, Co2 + and Fe2 + are not extracted but separated from Al3 +.