Monolith coating apparatus and method therefor
AssigneeJohnson Matthey Public Limited Company
InventorsDirk Aderhold, Alan George Haynes, Michael Leonard William Spencer, Duncan John William Winterborn
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Abstract
Apparatus for coating a support such as a monolithic catalyst support (5) comprises a dispenser (1) for dispensing a predetermined quantity of coating liquid, a containment (2) for the liquid and a source of vacuum (8, 9) which can be actuated to draw the entire quantity of coating liquid into the support (5). The apparatus and method are particularly useful for coating car catalysts without wastage and with increased design options.
Claims3
A method of coating a monolithic support, comprising the steps of (a) locating a containment means on top of a monolithic support;
- (b) dosing a predetermined quantity of a liquid component into the containment means, wherein the order of steps (a) and (b) is (a) then (b) or (b) then (a);
- and (c) applying vacuum to draw the entirety of the quantity of the liquid component into at least a portion of the monolithic support, and retaining all of the quantity of the liquid component within the monolithic support without recycle.
Dependencies are inferred from the claim text.