Chemistry: physical processes – Physical processes – Crystallization
Patent
1975-09-23
1976-09-14
Wolk, Morris O.
Chemistry: physical processes
Physical processes
Crystallization
23262, 23279, 260475R, B01J 916, C07C 6976
Patent
active
039804410
ABSTRACT:
Dimethyl terephthalate is prepared by the continuous esterification of terephthalic acid in the gas phase by evaporating solid terephthalic acid in a pre-reactor by means of a hot methanol vapor stream, conducting the gas mixture through a solid bed catalyst in a follow-up reactor, and recirculating a portion of the reaction product to the pre-reactor.
REFERENCES:
patent: 3227743 (1966-01-01), Shaw et al.
patent: 3364251 (1968-01-01), Benning et al.
patent: 3377376 (1968-04-01), Gainer et al.
patent: 3617226 (1971-11-01), List et al.
patent: 3676485 (1972-07-01), Lewis et al.
List Ferdinand
Wember Kurt
Wilke Norbert
Wulf Horst-Dieter
Chemische Werke Huls Aktiengesellschaft
Turk Arnold
Wells Gilbert L.
Wolk Morris O.
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