Nanofiltration apparatus and processes

Details Nanofiltration apparatus and processes Nanofiltration apparatus and processes

1996-06-18

1997-04-01

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210652, 210653, 210654, 21050037, 21050038, 21032172, B01D 6100

Patent

active

056162499

ABSTRACT:
Improved nanofiltration apparatus and processes utilizing thin film composite asymmetric nanofiltration membranes in which the thin film semi-permeable barrier layer consists of substantially "all aliphatic" polymer(s) prepared, for example, by the interfacial polymerization of one or more aliphatic monomers having two or more substituents selected from the group consisting of primary and secondary amine substitutents with one or more aliphatic monomers having two or more acid halide substituents. The monomers are linked together in the thin film substantially exclusively by amide linkages.

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