Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1995-12-08
1997-11-25
Caldarola, Glenn A.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502303, 502342, 502343, B01J 2372
Patent
active
056912684
ABSTRACT:
The invention provides for a method of making isoalcohols using syngas-to-alcohol catalyst and method of making it. The catalyst is a highly dispersed, alkali promoted, La stabilized, microcrystalline Cu.sub.2 O having a particle size of .ltoreq.6 nm in the presence of an alumina structural promoter, wherein on a mole % alkali free metals-only basis Cu is present in from 45 to 55%, Zn from 10 to 20%, Al from 10 to 25%, La from 5 to 15%, and wherein the alkali is from 0.01 to 0.91% K and from 3 to 6.5% Cs. The method of making it involves coprecipitation at a constant pH from a solution of soluble metal salts of copper, zinc, lanthanum and aluminum with an alkali hydroxide, washing the coprecipitate in the essential absence of CO.sub.2, drying and calcining it, then contacting it with K and Cs to form the promoted catalyst. The promoted catalyst is dried and recalcining to produce a catalyst precursor with highly dispersed CuO crystallites. The catalyst is activated in flowing hydrogen.
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Koveal Russell John
Vanderspurt Thomas Henry
Caldarola Glenn A.
Exxon Research and Engineering Company
Ghyka Alexander G.
Scuorzo Linda M.
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