Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1995-03-09
1997-08-12
McGinty, Douglas J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502439, 502326, 502313, 502333, 502331, 502327, 502334, 502308, 502311, 502314, 502315, 502318, 502338, 502319, 502320, 502321, 502322, 502323, 502337, 502316, 423403, 423404, B01J 2342, B01J 2344, C01B 2126, C01B 2128
Patent
active
056565674
ABSTRACT:
A catalyst unit (16), in which a quantity of a relatively expensive material such as platinum is replaced by a greater quantity of a relatively inexpensive material such as palladium. Thus, material cost saved by "tailoring" a pack is used to pay for a large quantity of a cheaper material. Although the cheaper material is generally less intrinsically efficient than the expensive material, a sufficient additional amount of the cheaper material can be used to more than compensate for this lack of efficiency. Thus, a catalytic pack of high catalytic efficiency, low material cost, low metal loss and long run duration can be produced.
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Heywood, A.E., "Platinum Recovery in Ammonia Oxidation Plants", Platinum Metals Review, 17(4), 118-129 (Oct. 1973).
Darling, A.S., "The Search for Alternatives to Rhodium-Platinum Alloys", Platinum Metals Review, 17(4), 130-6 (Oct. 1973).
"Nitric acid catalysts: the economic significance of composition, operating conditions and recovery techniques", Nitrogen, 183, 27-32, (Jan.-Feb. 1990).
McGinty Douglas J.
PGP Industries Inc.
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