Distillation: processes – separatory – With chemical reaction – Including step of adding catalyst or reacting material
Patent
1996-08-05
1998-05-05
Manoharan, Virgina
Distillation: processes, separatory
With chemical reaction
Including step of adding catalyst or reacting material
203 71, 203DIG21, 562600, B01D 334
Patent
active
057468923
ABSTRACT:
A continuous process for producing a pure grade of acrylic acid having residual aldehyde levels under 10 parts per million. The process applies two groups of amines sequentially and continuously in selectively reducing acrolein and furfural and may be advantageously conducted in the presence of maleic acid and maleic anhydride impurities.
REFERENCES:
patent: 3674651 (1972-07-01), Otsuki et al.
patent: 3725208 (1973-04-01), Maezawa et al.
patent: 3893895 (1975-07-01), Dehnert et al.
patent: 4828652 (1989-05-01), Schropp
patent: 5208370 (1993-05-01), Bauer, Jr. et al.
CA 81:121 364.
CA 80:965 66.
CA 80:703 36.
European Search Report dated Sep. 29, 1995.
Research Disclosure 167066 dated 78/02/20.
Bauer, Jr. William
Hale Timothy Allen
Mason Robert Michael
Upmacis Rita Karina
Gironda Kevin F.
Leightner Joseph F.
Lemanowicz John L.
Manoharan Virgina
Rohm and Haas Company
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