Process for the production of pure dimethylether

Details Process for the production of pure dimethylether Process for the production of pure dimethylether

1989-04-28

1991-08-06

Manoharan, Virginia

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 42, 203 93, 203 94, 203 96, 203 97, 203 98, 203 99, 203DIG9, 203DIG19, 568698, 568699, B01D 314, C07C 4142

Patent

active

050375113

ABSTRACT:
A process for the production of pure dimethylether by feeding the dehydration product from a dimethylether-synthesis reactor into a distillation column for the production of pure dimethylether at defined trays of this column and withdrawal of pure dimethylether and a fraction containing contaminations at defined trays of the same column, whereby in addition washing liquids and bases can be added.

REFERENCES:
patent: 3356590 (1967-12-01), Johnson
patent: 3847756 (1974-11-01), Statman et al.
patent: 4560807 (1985-12-01), Murai et al.
patent: 4722769 (1988-02-01), Chan et al.
patent: 4802956 (1989-02-01), Dornhagen et al.
Matthew Van Winkle, "Distillation", McGraw Hill Book Co., New York, p. 498.
"DME 99,99: High Quality, High Purity", RWE-DEA Aktiengesellshaft fur Mineraloel und Chemie.

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