Floatation separation and enrichment of germanium in cetyltrimethyl ammonium bromide-KI-H2O system
LIU De-gong1, SI Xue-zhi2, MA Dong-dong1, MA Wan-shan1
1.College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; 2.College of Chemistry and Chemical Engineering ，Henan University of Technology, Zhengzhou 450052, China
Abstract：The floatation separation behaviors of germanium in cetyltrimethyl ammonium bromide (CTMAB)KIwater system and the separation conditions with some metal ions were studied. The results showed that Ge could form a waterinsoluble ternary complex (［GeI62-］［CTMAB+］2) with CTMAB and KI in water solution. This ternary complex precipitation could float on water phase, generating a clear liquidsolid interface. When the concentration of CTMAB and KI was 6.0×10-4 mol/L and 8.0×10-3 mol/L, respectively, Ge(Ⅳ)could be quantitatively separated fromCo2＋、Ni2＋、Mn2＋、Mg2＋、Zn2＋、Al3+、Fe2＋、Cr3+、V(Ⅴ) and W(Ⅵ). The floatation rate ofGe(Ⅳ) was above 97.4 %. The proposed method was simple and rapid without environmental pollution, and had good practical value in separation and enrichment of micro-germanium.
刘德汞，司学芝 ，马冬冬，马万山. 锗在十六烷基三甲基溴化铵-KI-水体系中的浮选分离和富集[J]. 冶金分析, 2012, 32(5): 53-56.
LIU De-gong, SI Xue-zhi, MA Dong-dong, MA Wan-shan. Floatation separation and enrichment of germanium in cetyltrimethyl ammonium bromide-KI-H2O system. , 2012, 32(5): 53-56.
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