Stabilization of supported liquid membranes by gelation with PVC
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چکیده
منابع مشابه
Stabilization of Supported Liquid Membranes by Gelation with PVC
This article describes the gelation by PVC of supported liquid membranes (SLMs) for nitrate removal using a quaternary ammonium salt as carrier. Untreated SLMs with this carrier are very unstable. To improve their stability, the LM-phase was gelled with polyvinyl chloride as gel-forming polymer. Both homogeneous gelations of the LM-phase as well as the application of an interfacial gel layer ar...
متن کاملSupported liquid membranes: stabilization by gelation
A new method has been developed to increase the stability of supported liquid membranes. By applying a homogeneous gel network in the pores of the support both the mechanical stability (against liquid displacement) and the long term permeability increase substantially. The flux decreases only slightly because of the open structure of the gel network. A second technique, by which a thin dense ge...
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The use of ionic liquids (ILs) for gas separation processes recently has attracted much attention due to high solubilities of different gaseous species in ionic liquids [1]. The preparation of supported ionic liquid membranes (SILMs) is also reported for selective separation of different organic or gaseous compounds. Research activities have amongst others focused on CO2 separation from gas str...
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متن کاملSupported liquid membranes : instability effects
The instability behaviour of several supported liquid membranes (SLMs) has been studied for a system in which nitrate ions are removed from an aqueous feed phase and concentrated in a stripping phase. The composition of the aqueous phases and of the membrane liquid has been determined after the aqueous phases had flowed parallel to the membranes for a period of six days. From the experimental d...
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ژورنال
عنوان ژورنال: Journal of Applied Polymer Science
سال: 1997
ISSN: 0021-8995,1097-4628
DOI: 10.1002/(sici)1097-4628(19970808)65:6<1205::aid-app16>3.0.co;2-s