Porous inorganic membrane with reactive inorganic binder

Details Porous inorganic membrane with reactive inorganic binder Porous inorganic membrane with reactive inorganic binder

1990-08-29

1992-04-21

Spear, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050025, 21050026, B01D 7104

Patent

active

051065029

ABSTRACT:
A porous inorganic membrane for use with a membrane device having a porous support, the membrane including refractory particles bound to each other and to the support by a thermally reactive inorganic binder which reacts at a temperature below that at which the refractory particles react. Further, a method of forming a porous inorganic membrane on a support by applying a coating of a mixture of refractory particles and a thermally reactive inorganic binder to the support. The inorganic binder reacts at a first temperature lower than a second temperature at which the refractory particles sinter. The method further includes firing the support to a firing temperature at least as high as the first temperature and less than the second temperature to react the inorganic binder, and cooling the support to form the porous membrane.

REFERENCES:
patent: 4889630 (1989-12-01), Reinhardt et al.
patent: 4983423 (1991-01-01), Goldsmith

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