Chlorine-resistant composite membranes with high organic rejecti

Details Chlorine-resistant composite membranes with high organic rejecti Chlorine-resistant composite membranes with high organic rejecti

1995-05-19

1996-12-10

Spear, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050038, 264 41, B01D 7156

Patent

active

055827250

ABSTRACT:
A method for making a chlorine-resistant composite polyamide membrane having high organic rejection, the essential step of which comprises treating a conventional composite membrane with an acyl halide. The novel membrane is especially suitable for the treatment of water containing chlorine or lower molecular weight organic compounds.

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patent: 4812238 (1989-03-01), Cadotte et al.
patent: 4960517 (1990-10-01), Cadotte
patent: 4960518 (1990-10-01), Cadotte et al.
patent: 4964998 (1990-10-01), Cadotte et al.

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