Method for dehydration of unsaturated aldehyde-containing gas

Details Method for dehydration of unsaturated aldehyde-containing gas Method for dehydration of unsaturated aldehyde-containing gas

1980-12-05

1982-05-11

Lone, Werren B.

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

Organic compounds

Oxygen containing

562449, C07C 4558, C07C 4720

Patent

active

043295134

ABSTRACT:
Methanol is allowed to flow downwardly and contacted countercurrently with an unsaturated aldehyde-containing gas obtained from gas phase catalytic oxidation of the starting gas containing at least one gas selected from the group consisting of propylene, isobutylene and t-butanol, said methanol being supplied in such an amount that substantially the whole thereof can be gasified in the treatment. According to this method, the water content in said unsaturated aldehyde-containing gas can be rendered smaller than that in the azeotropic mixture of the unsaturated aldehyde and water, and also there takes place no polymerization of the unsaturated aldehyde.

REFERENCES:
patent: 2514966 (1950-07-01), Pierotti et al.
patent: 2514967 (1950-07-01), Pierotti et al.
patent: 2767216 (1956-10-01), Evans et al.
patent: 3828099 (1974-08-01), Sato et al.
patent: 3957880 (1976-05-01), Sato et al.

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