论文部分内容阅读
在不同浓度的Cl~-(1和5M)、SO_4~(2-)(1.36M)和CO_3~(2-)(0.05、0.1、1、5和25％(w/v)的盐酸及硫酸介质中,研究了三种pH值(2、7和12)条件下,以煤油和异癸醇之比为9:1的混合物为溶剂,用伯胺(Primene JM-T)、仲胺(Amberlite LA-2)、叔胺(Alamine336)和一种季铵盐(Aliquat336)的氯化物和硫酸盐为萃取剂从W(Ⅵ)浓度为0.01M的水溶液中萃取钨。然后,使用不同浓度的NH_4Cl、NaCl、NaOH、Na_2CO_3、(NH_4)_2CO_3、等摩尔的NaOH+NaCl和NH_4Cl+NH_4OH溶液从在pH2下制得的负载钨有机相反萃取钨。还比较了不同萃取剂和反萃取剂的效率。
Under the different concentrations of Cl ~ - (1 and 5M), SO 4 2- (1.36M) and CO 3 2- (0.05,0.1,1,5 and 25% (w / v) Medium, three kinds of pH values (2, 7 and 12) were studied under the conditions of a mixture of kerosene and isodecanol of 9: 1, using Primene JM-T, Amberlite Tungsten was extracted from an aqueous solution of W (VI) at a concentration of 0.01 M using chloride and sulfate of a tertiary amine (Alamine 336) and a quaternary ammonium salt (Aliquat 336) as extractants. , Tungsten from the loaded tungsten organic solution prepared at pH 2, using equimolar solutions of NaOH + NaCl and NH 4 Cl + NH 4 O, NaCl, NaOH, Na 2 CO 3, (NH 4) 2 CO 3, and also the efficiencies of different extractants and stripping agents.