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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 WangA 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 polymersVolume
4Issue
1Pagination
27 - 31Publisher
Korean Fiber SocietyLocation
Seoul, KoreaPublisher DOI
ISSN
1229-9197eISSN
1875-0052Language
engNotes
The original publication is available at springerlink.com.Publication classification
C1 Refereed article in a scholarly journalCopyright notice
2003, SpringerUsage metrics
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