Process for regenerating facilitated-transport membranes
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United States of America Patent
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Issued Date -
Jan 26, 2006
app pub date -
Jul 15, 2005
filing date -
Jul 20, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A process for regenerating a facilitated-transport membrane, such as a gas separation membrane, that contains an ionic complexing agent, and that has lost performance as a result of reduction of at least some of the ions to a less charged or uncharged form. The process involves exposing the membrane to an oxidizing agent, such as hydrogen peroxide. The invention also includes membranes that have been regenerated in this way, and their use, particularly for separating light olefins from light paraffins by membrane gas separation.
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