Study on extraction and enrichment of gallium by phase separation with rhodamine B1propanolsodium chloride system
LI Yuling1, SI Xuezhi2, LIU Dong1, MA Wanshan*1
1College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; 2College of Chemistry and Chemical Engineering，Henan University of Technology,Zhengzhou 450052, China
Abstract：The phase separation extraction behavior of gallium with rhodamine B1propanolsodium chloride system was investigated, as well as the separation conditions of gallium from other metal ions. The results showed that the aqueous solution of 1propanol could be divided into two phases in the presence of sodium chloride. The association complex of ［GaCl4-］［RhB+］ formed by GaCl4- and rhodamine B (RhB) could be completely extracted by 1propanol during this process. When the concentrations of rhodamine B, sodium chloride, 1propanol and hydrochloric acid were 04 g/L, 02 g/mL，30 % (V/ V) and 0０5-1 mol/L，respectively, the extraction yield of GaCl4- was up to 97.7 %. Meanwhile, other metal ions including Fe2+, Co2+, Mg2+, Ag+, Cu2+, Ru3+, Ni2+ and Cr3+ were not extracted, realizing the separation of Ga3+ from these metal ions.
李玉玲，司学芝，刘东，马万山*. 罗丹明B正丙醇氯化钠体系析相萃取分离和富集镓[J]. 冶金分析, 2012, 32(3): 77-79.
LI Yuling, SI Xuezhi, LIU Dong, MA Wanshan*. Study on extraction and enrichment of gallium by phase separation with rhodamine B1propanolsodium chloride system. , 2012, 32(3): 77-79.
杭州大学化学系分析化学教研室. 分析化学手册：第二分册[M].北京：化学工业出版社(Chemical Industry Press), 1982:209；7.
[2]
Chung N H, Masaaki T. Selective extraction of gold(Ⅲ) in the presence of Pd (Ⅱ) and Pt(Ⅱ) by salting-out of the mixture of 2-propanol and water[J]. Talanta,2002,58（4）: 927-933.
