Ce^(4+) Extraction Mechanism from RE Sulfate Solution Containing Fluorine with DEHPA
Ce^(4+) Extraction Mechanism from RE Sulfate Solution Containing Fluorine with DEHPA出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)
年 卷 期：2000年第18卷第1期
页 面：61-61页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
主 题：DEHPA rare earth cerium solvent extraction fluorine
摘 要：RE sulfate solution containing fluorine is obtained from bastnasite which is roasted in air and then leached with sulfuric acid. Solvent extraction of Ce4+ with DEHPA in sulphonating kerosene from the solution is investigated. It is found that fluorine ion is extracted into organic phase with Ce4+. The extraction mechanism is proposed by slope analysis and studying the influence of aqueous acidity, fluorine concentration and DEHPA concentration on CF- /cC4+ in equilibrium organic phase.
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