Process for preparation of heterogeneous polysiloxane membrane a

Details Process for preparation of heterogeneous polysiloxane membrane a Process for preparation of heterogeneous polysiloxane membrane a

1988-04-01

1989-05-09

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55389, 427227, 427294, 4283073, 4283126, 428429, B01D 5322

Patent

active

048285889

ABSTRACT:
A heterogeneous glass silicone membrane is formed by reacting in situ a silane monomer and an aqueous catalyst solution. The polymerization reaction is controlled so that the polymerization occurs within the porous glass support member. This is caused by allowing the aqueous catalyst to permeate into the glass support member at the same time the silane monomer is permeating into the member from the opposite side. By controlling monomer amount, temperature, catalyst amount and the like the polymerization occurs under controlled conditions inside the support member.
Further a molecular sieve can be formed by pyrolysis of the formed heterogeneous membrane. Both the heterogeneous membrane and the molecular sieve can be used in a separation of gases.

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Undated abstract of a talk presented at the ACS meeting in Denver 1987.

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