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Title: Inorganic dual-layer microporous supported membranes

Abstract

The present invention provides for a dual-layer inorganic microporous membrane capable of molecular sieving, and methods for production of the membranes. The inorganic microporous supported membrane includes a porous substrate which supports a first inorganic porous membrane having an average pore size of less than about 25 .ANG. and a second inorganic porous membrane coating the first inorganic membrane having an average pore size of less than about 6 .ANG.. The dual-layered membrane is produced by contacting the porous substrate with a surfactant-template polymeric sol, resulting in a surfactant sol coated membrane support. The surfactant sol coated membrane support is dried, producing a surfactant-templated polymer-coated substrate which is calcined to produce an intermediate layer surfactant-templated membrane. The intermediate layer surfactant-templated membrane is then contacted with a second polymeric sol producing a polymeric sol coated substrate which is dried producing an inorganic polymeric coated substrate. The inorganic polymeric coated substrate is then calcined producing an inorganic dual-layered microporous supported membrane in accordance with the present invention.

Inventors:
 [1];  [2];  [3]
  1. 14 Eagle Nest Dr. NE., Albuquerque, NM 87122
  2. 6 Mount Vernon Dr., Apt. C, Vernon, CT 06066
  3. 1055 N. Capital Ave., #20, San Jose, CA 95133
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
875122
Patent Number(s):
6536604
Application Number:
09/602579
Assignee:
Brinker; C. Jeffrey (14 Eagle Nest Dr. NE., Albuquerque, NM 87122); Tsai; Chung-Yi (6 Mount Vernon Dr., Apt. C, Vernon, CT 06066); Lu; Yungfeng (1055 N. Capital Ave., #20, San Jose, CA 95133)
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
inorganic; dual-layer; microporous; supported; membranes; provides; membrane; capable; molecular; sieving; methods; production; porous; substrate; supports; average; pore; size; 25; ang; coating; dual-layered; produced; contacting; surfactant-template; polymeric; sol; resulting; surfactant; coated; support; dried; producing; surfactant-templated; polymer-coated; calcined; produce; intermediate; layer; contacted; pore size; coated substrate; microporous membrane; molecular sieving; microporous support; /210/96/502/

Citation Formats

Brinker, C Jeffrey, Tsai, Chung-Yi, and Lu, Yungfeng. Inorganic dual-layer microporous supported membranes. United States: N. p., 2003. Web.
Brinker, C Jeffrey, Tsai, Chung-Yi, & Lu, Yungfeng. Inorganic dual-layer microporous supported membranes. United States.
Brinker, C Jeffrey, Tsai, Chung-Yi, and Lu, Yungfeng. Wed . "Inorganic dual-layer microporous supported membranes". United States. https://www.osti.gov/servlets/purl/875122.
@article{osti_875122,
title = {Inorganic dual-layer microporous supported membranes},
author = {Brinker, C Jeffrey and Tsai, Chung-Yi and Lu, Yungfeng},
abstractNote = {The present invention provides for a dual-layer inorganic microporous membrane capable of molecular sieving, and methods for production of the membranes. The inorganic microporous supported membrane includes a porous substrate which supports a first inorganic porous membrane having an average pore size of less than about 25 .ANG. and a second inorganic porous membrane coating the first inorganic membrane having an average pore size of less than about 6 .ANG.. The dual-layered membrane is produced by contacting the porous substrate with a surfactant-template polymeric sol, resulting in a surfactant sol coated membrane support. The surfactant sol coated membrane support is dried, producing a surfactant-templated polymer-coated substrate which is calcined to produce an intermediate layer surfactant-templated membrane. The intermediate layer surfactant-templated membrane is then contacted with a second polymeric sol producing a polymeric sol coated substrate which is dried producing an inorganic polymeric coated substrate. The inorganic polymeric coated substrate is then calcined producing an inorganic dual-layered microporous supported membrane in accordance with the present invention.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

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