Method for treating alumina honeycomb monoliths
AssigneeCorning Incorporated
InventorsWilliam P. Addiego, Kevin R. Brundage, Christopher R. Glose, Jennifer M. Torns
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Abstract
High-surface-area alumina honeycombs are subjected to a water vapor pre-treatment to obtain protection from cracking damage on subsequent exposure to aqueous media e.g., aqueous solutions for depositing catalysts on the honeycombs.
Claims4
A method for treating an alumina honeycomb to disperse a catalyst constituent on honeycomb channel surfaces thereof which comprises the steps of:
- (a) exposing the honeycomb to water vapor for a time sufficient to develop a crack-inhibiting deposit of adsorbed water within the pore structure of the honeycomb;
- and thereafter
- (b) contacting the honeycomb with an aqueous liquid medium containing the catalyst constituent.
A method for protecting a calcined alumina honeycomb from damage through liquid water contact which comprises exposing the honeycomb to water vapor at a temperature and for a time sufficient to develop a crack-inhibiting deposit of adsorbed water within the pore structure of the honeycomb prior to the liquid water contact.
Dependencies are inferred from the claim text.