Substituted polyacetylene separation membrane

Details Substituted polyacetylene separation membrane Substituted polyacetylene separation membrane

1996-06-14

1998-01-13

Spitzer, Robert

Gas separation: processes

Selective diffusion of gases

Selective diffusion of gases through substantially solid...

95 50, 95 54, 96 4, 96 12, B01D 5322

Patent

active

057074232

ABSTRACT:
A separation membrane useful for gas separation, particularly separation of C.sub.2+ hydrocarbons from natural gas. The invention encompasses the membrane itself, methods of making it and processes for using it. The membrane comprises a polymer having repeating units of a hydrocarbon-based, disubstituted polyacetylene, having the general formula: ##STR1## wherein R.sub.1 is chosen from the group consisting of C.sub.1 -C.sub.4 alkyl and phenyl, and wherein R.sub.2 is chosen from the group consisting of hydrogen and phenyl. In the most preferred embodiment, the membrane chemical resistance and has super-glassy properties with regard to separating certain large, condensable permeant species from smaller, less-condensable permeant species. The membranes may also be useful in other fluid separations.

REFERENCES:
patent: 4230463 (1980-10-01), Hemis et al.
patent: 4444970 (1984-04-01), Weddigen
patent: 4567245 (1986-01-01), Takamizawa et al.
patent: 4591440 (1986-05-01), Higashimura et al.
patent: 4657564 (1987-04-01), Langsam
patent: 4714481 (1987-12-01), Matsuura et al.
patent: 4746334 (1988-05-01), Matsui et al.
patent: 4755193 (1988-07-01), Higashimura et al.
patent: 4759776 (1988-07-01), Langsam et al.
patent: 4859215 (1989-08-01), Langsam et al.
patent: 4871378 (1989-10-01), Pinnau
patent: 4968470 (1990-11-01), Lynch et al.
patent: 4990255 (1991-02-01), Blume et al.
patent: 5049167 (1991-09-01), Castro et al.
patent: 5073175 (1991-12-01), Anand et al.
patent: 5085776 (1992-02-01), Blume et al.
patent: 5176724 (1993-01-01), Saito et al.
patent: 5281255 (1994-01-01), Toy et al.
patent: 5501722 (1996-03-01), Toy et al.
Masuda et al. "Polymerization of Methylpentynes by Transition Metal Catalysts," Polymer Journal, vol. 14, No. 5, pp. 371-377 (1982).
Masuda et al, "Polyacetylenes with Substituents: Their Synthesis and Properties", Advances in Polymer Science 81, 1987, pp. 124-148.
Takada et al. "Gas Permeability of Polyacetylenes Carrying Substituents," J. App. Polymer Sci., vol. 30, pp. 1605-1616 (1985).

Affiliated with

Also associated with

Rating

Substituted polyacetylene separation membrane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Substituted polyacetylene separation membrane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Substituted polyacetylene separation membrane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-322739