摘要
研究了氯化十六烷基吡啶和KSCN分离钛的行为及与一些金属离子分离的条件。结果表明,在水溶液中,Ti4+与氯化十六烷基吡啶和KSCN形成不溶于水的三元缔合物[Ti(SCN)62-][CPC+]2,此三元缔合物沉淀浮于水相上层形成界面清晰的液-固两相。当溶液中氯化十六烷基吡啶和KSCN的浓度分别为8.0×10-4mol/L和6.0×10-2 mol/L时,Ti4+可与V5+、Mg2+、Al3+、Cd2+、Mn2+、Ga3+、Fe2+、Ni2+和Cr3+进行分离,该方法在微量Ti的分离和富集分析中有一定的实用价值。
The behavior and conditions for the enrichment and flotation separation of titanium from other metal ions were investigated with cetylpyridine chloride（CPC）-KSCN system.The results showed that Ti4＋ combined with CPC and KSCN into a ternary ion association precipitate [Ti（SCN）62-]2 in the aqueous solutions.The precipitate was floated well on the surface of water phase to make the system to divide into both liquid and solid phases with a distinct boundary layer.Ti4＋ could be quantitatively separated from V5＋,Mg2＋,Al3＋,Cd2＋,Mn2＋,Ga3＋,Fe2＋,Ni2＋and Cr3＋ by floatation when the concentrations of CPC and KSCN in solution were 8.0×10-4mol/L and 6.0×10-2mol/L,respectively.The method is easy,rapid and no pollution to the environment,which shows certain practical value in separation and enrichment analysis of trace titanium.
出处
《分析试验室》
CAS
CSCD
北大核心
2012年第8期44-46,共3页
Chinese Journal of Analysis Laboratory
基金
河南省教育厅自然科学研究计划项目(2006150023)资助
关键词
钛
氯化十六烷基吡啶
硫氰酸钾
浮选分离
Titanium； Cetylpyridine chloride； Potassium thiocyanate； Flotation separation
