Process for the preparation of formaldehyde

Details Process for the preparation of formaldehyde Process for the preparation of formaldehyde

1990-06-21

1991-04-16

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568449, C07C 4500, C07C 4704

Patent

active

050084631

ABSTRACT:
The process dehydrogenates methanol in the presence of a catalyst based on aluminum oxide, alkali metal aluminate and/or alkaline earth metal aluminate with the exclusion of oxygen at a temperature of 650.degree. to 1050.degree. C. in a reactor whose inner wall is composed entirely or partly of aluminum oxide. The process gives anhydrous formaldehyde which contains only very minor impurities.

REFERENCES:
patent: 4181629 (1980-01-01), Cairati et al.
patent: 4788347 (1988-11-01), Sagou et al.
Ullmann 11: 693-694, 4th ed. (1976), pub. Verlag Chemie, Weinheim.

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