Liquid purification or separation – Filter – Material
Reexamination Certificate
2006-11-21
2006-11-21
Menon, Krishnan S. (Department: 1723)
Liquid purification or separation
Filter
Material
C210S500410, C210S483000, C210S488000, C210S490000, C210S651000, C210S652000, C210S653000, C210S654000
Reexamination Certificate
active
07138058
ABSTRACT:
Semi-permeable membranes are described that allow for the efficient processing of many liquid based feed solutions, particularly those that contain acids. The membranes of this invention are able to process such feeds with high permeate rates while maintaining excellent retention of dissolved metals, cations, and organic compounds, even in the presence of hot concentrated acids. The semi-permeable membranes of this invention are able to conduct such separations for a useful period of time due to their chemical stability towards acids and their ability to permeate acids.
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Hodgins Leonard T.
Kloos Steven D.
Kurth Christopher J.
Peschl Jessica A.
GE Osmonics, Inc.
Menon Krishnan S.
Viksnins Harris & Padys PLLP
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