Pervaporation method of selectively separating water from an org

Details Pervaporation method of selectively separating water from an org Pervaporation method of selectively separating water from an org

1990-04-05

1991-03-05

Sever, Frank

Gas separation

Means within gas stream for conducting concentrate to collector

55158, 210640, 21050039, B01D 636

Patent

active

049974629

ABSTRACT:
A pervaporation separation method of water from an organic material aqueous solution at a high separating efficiency is effected by using a specific asymmetric separating membrane comprising a heat-resistant, solvent-soluble aromatic imide polymer prepared by the polymerization and imidization of an aromatic tetracarboxylic acid component comprising, as a principal ingredient, at least one biphenyl tetracarboxylic acid compound with an aromatic diamine component comprising a principal member selected from: ##STR1## and an additional member selected from another aromatic diamine compounds having 2 to 5 benzene ring structures and different from the diamine compounds (I) and (II).

REFERENCES:
patent: 4512893 (1985-04-01), Makino et al.
patent: 4528004 (1985-07-01), Makino et al.
patent: 4830640 (1989-05-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Pervaporation method of selectively separating water from an org does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pervaporation method of selectively separating water from an org, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pervaporation method of selectively separating water from an org will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-494155