Role of the interface in solvent extraction processes.
Role of the interface in solvent extraction processes.
复制标题
界面在溶剂萃取过程中的作用。
DOI：
10.1246/bcsj.61.39
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发表时间：
1988
影响因子：
4
通讯作者：
H. Freiser
中科院分区：
文献类型：
--
作者：
H. Freiser
本文综述了25年来高速搅拌条件下金属螯合物萃取体系动力学的研究。螯合物的形成速率常数的分析和湿法冶金萃取剂的值来自这样的测量使用的假设，即速率决定步骤（S）发生在散装水相，已被证明是在合理的协议与预期。然而，引入微孔聚四氟乙烯相分离器的萃取动力学导致明确的证据，涉及的接口，以及散装水相的反应途径，即使是简单的螯合萃取剂。
This paper reviews 25 years’ investigation of kinetics of metal chelate extraction systems under high speed stirring conditions. Values of chelate formation rate constants for both analytical and hydrometallurgical extractants derived from such measurements using the assumption that the rate-determining step(s) occur in bulk aqueous phase, have been shown to be in reasonable agreement with expectations. Nevertheless, the introduction of the microporous Teflon phase separator in extraction kinetics resulted in clear evidence of reaction pathways involving the interface, as well as the bulk aqueous phase, even for simple chelating extractants.