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An investigation of solubility of aliquat 336 in different extracted solutions

journal contribution
posted on 2003-03-01, 00:00 authored by J Xu, R Paimin, W Shen, Xungai Wang
A major concern in solvent extraction processes is the loss of extractant into the aqueous phase due to its slight solubility in the aqueous phase. Similarly, in membrane extraction processes, extractant loss through extractant leakage from the membrane into the aqueous phase is also a concern. Several published membrane extraction studies using Aliquat 336 as the extractant, have expressed this concern, but none has studied extractant leakage quantitatively. It is the authors’ opinion that the extractant leakage should be considered as a technical parameter of a membrane. In our laboratory active progress has been made in using Aliquat 336 ‘entangled’ into the polymer membranes to remove heavy metal ions from wastewater samples. In this work, we studied the loss of Aliquat 336 from the point of view of its solubility in aqueous solutions. The results showed that the solubilities of Aliquat 336 in an aqueous phase acidified with 2 M HCl is about 0.1 g/100 m/ of the solution. This figure provides a useful guideline for evaluating the leakage of the Aliquat 336 extractant from the membranes.

History

Journal

Fibers and polymers

Volume

4

Issue

1

Pagination

27 - 31

Publisher

Korean Fiber Society

Location

Seoul, Korea

ISSN

1229-9197

eISSN

1875-0052

Language

eng

Notes

The original publication is available at springerlink.com.

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2003, Springer

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