Process for the preparation of metal oxide catalysts and metal o

Details Process for the preparation of metal oxide catalysts and metal o Process for the preparation of metal oxide catalysts and metal o

1975-11-19

1977-05-03

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252455R, 252457, 252463, 252475, 252476, B01J 2900, B01J 2308

Patent

active

040213714

ABSTRACT:
The invention relates to a novel method of preparing catalysts containing the oxides and/or oxyhydrates of aluminum, silicon, magnesium or zinc either alone or in combination with each other, or catalysts containing a metal or a metal oxide as active component and an above-identified oxide and/or oxyhydrate or a mixture thereof as support. According to the invention catalysts with excellent activities can be prepared with a simple and economic operation.
One proceeds, in accordance with the invention, as follows: powdered metallic aluminum, silicon, magnesium or zinc or a fused mixture thereof, or, when a supported catalyst is to be prepared, a fused mixture also containing one or more catalytically active metals, is admixed with an alkali metal hydroxide or carbonate or an alkaline earth metal hydroxide, said alkaline agent being used in an amount of 0.01 to 2 times the stoichiometric amount with respect to the aluminum, silicon, magnesium and/or zinc component, this mixture is wetted with water, stirred in solid phase, while the evaporated water is supplemented continuously, the resulting crude product is suspended in water, and the suspension is neutralized and/or washed until neutral.

REFERENCES:
patent: 1938560 (1933-12-01), Hunter
patent: 2103461 (1937-12-01), Hock et al.
patent: 2888323 (1959-05-01), Teichner
patent: 2989372 (1961-06-01), Gilbert
patent: 3953367 (1976-04-01), Hoffman

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