Claims
- 1. An aluminum substrate surface having a solid adsorbent selected from the group consisting of crystalline molecular sieves, activated alumina and mixtures thereof as a coating by a method which comprises:
- (a) heating said surface in an oxygen containing atmosphere to a temperature of at least about 200.degree. C. and sufficient to enable bonding of the solid adsorbent to said surface; and,
- (b) contacting said surface with a slurry comprising the solid adsorbent and a binder selected from the group consisting of volclay, kaolin, sepiolite, attapulgite, silicates, aluminates, activated alumina, and mixtures thereof in a suspending liquid to form a slurry-coated surface and removing sufficient liquid to form an adsorbent coating thereon.
- 2. The aluminum substrate surface of claim 1 wherein the adsorbent is selected from the group consisting of Zeolite A, Zeolite X, Zeolite Y, and mixtures thereof.
CROSS-REFERENCE
The present application is a divisional of U.S. Ser. No. 846,093, filed Mar. 5, 1992 which is a divisional of U.S. Ser. No. 386,319, filed Jul. 28, 1989, now U.S. Pat. No. 5,120,694.
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Divisions (2)
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Number |
Date |
Country |
Parent |
846093 |
Mar 1992 |
|
Parent |
386319 |
Jul 1989 |
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