Catalysts for methanol synthesis and method for their production

Details Catalysts for methanol synthesis and method for their production Catalysts for methanol synthesis and method for their production

1980-12-05

1982-09-14

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252475, 252477Q, 518713, B01J 2104, B01J 2306, B01J 2372, B01J 2500

Patent

active

043494641

ABSTRACT:
A method for the preparation of a low temperature catalyst suitable to synthesize methanol or mixtures of methanol and dimethyl ether, comprising forming an alloy containing 35 to 60%, preferably 44 to 50%, by weight of aluminium, 0.1 to 25%, preferably 13 to 17%, by weight of zinc and the remainder being substantially all copper and extracting the alloy with an aqueous solution of an alkali metal hydroxide, preferably sodium hydroxide, preferably at atmospheric pressure and a temperature of from 50.degree. to 80.degree. C., preferably from 65.degree. to 75.degree. C.
The resultant novel catalyst is used to produce methanol or a mixture of methanol and dimethyl ether by a process comprising contacting the catalyst with a gaseous mixture of carbon monoxide or carbon dioxide, or a mixture thereof, with hydrogen. This reaction is preferably carried out at a temperature of from 200.degree. to 290.degree. C. and a pressure of from 1500 to 7500 kPa and linear hourly space times of from 0.001 to 0.5 hours.

REFERENCES:
patent: 3412042 (1968-11-01), Kudo et al.
patent: 3769236 (1973-10-01), Allen et al.
patent: 3790505 (1974-02-01), Casey et al.

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