US Patent 9981252 Catalyst preparation method
Patent 9981252 was granted and assigned to Johnson Matthey PLC on May, 2018 by the United States Patent and Trademark Office.
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A method for preparing a catalyst comprising (i) preparing a calcined shaped calcium aluminate catalyst support, (ii) treating the calcined shaped calcium aluminate support with water, and then drying the support, (iii) impregnating the dried support with a solution containing one or more metal compounds and drying the impregnated support, (iv) calcining the dried impregnated support, to form metal oxide on the surface of the support and (v) optionally repeating steps (ii), (iii) and (iv) on the metal oxide coated support. The method provides an eggshell catalyst in which the metal oxide is concentrated in an outer layer on the support.
US Patent 09981252 Catalyst preparation method US Patent 9981252 Catalyst preparation method
US Patent 09981252 Catalyst preparation method
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