Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1979-01-10
1981-03-31
Hart, Charles N.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
2105002, 528337, 264 451, 427246, 525344, B01D 1300, C08G 6942, C08C 1920
Patent
active
042591830
ABSTRACT:
A composite permselective membrane is prepared by reaction of a film or layer containing cycloaliphatic polyfunctional secondary amines with a triacyl halide or its mixture with a diacyl halide. The membrane is useful in separating components of fluid mixtures or solutions, such as the removal of salts from aqueous solutions by reverse osmosis.
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"Polyamide Membranes" by P. Blais Ch. 9 Reverse osmosis and Synthetic Membrane by S. Souririjan NRSg Can. pp. 167-210 (1977) NTI Report PB 253 193/76A (Abstract, Table of Content, List of Tables and pp. 16-20.
Cross E. Rollins
Hart Charles N.
Midwest Research Institute
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