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Preparation of Potassium Sulphate from Separation of Potassium and Sodium by Amine Extraction
Author(s): 
Pages: 151-154
Year: Issue:  1
Journal: Journal of Chemical Engineering of Chinese Universities

Keyword:  霓辉正长岩有机胺萃取硫酸钾;
Abstract: 以霓辉正长岩烧结物料的水浸滤液(经CO2酸化处理后)为研究对象,该溶液为简单的NaHCO3-KHCO3-H2O 三元体系.在60℃等温蒸发结晶至溶液中质量比m(Na2CO3)/m(K2CO3)≈2时,按照V(有机相)/V(无机相)=3.5:1加入有机胺萃取体系,萃取体系是由V(三正丁胺)/V(正丁醇)=1:2.5均匀混合而成,利用钾、钠的碳酸氢盐在有机相-H2O混合液体系中的溶解度差异显著进行钾钠...
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