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为了解决P204萃取分离铟铁或有机相中铁的完全反萃,已有很多研究,生产实践中亦积累了不少经验。如加入铁的阻萃剂;提高萃原液酸度;铟铁分步反萃;动力协萃剂的应用;铁的还原及铟铁萃取动力学性质差异的利用等。前四个问题文献中叙述较多,本文不加赘述,仅对后两个问题加以讨论。
In order to solve the P204 extraction and separation of indium or iron in the organic phase of the complete stripping, there have been many studies, production practice also accumulated a lot of experience. Such as the addition of iron as a stripping agent; increase the extraction liquid acidity; Indium iron step-by-step stripping; kinetic co-leveler application; iron reduction and indium-iron extraction kinetic properties of differences in the use of such. The first four issues described in the literature more, this article will not go into details, only the latter two issues to be discussed.