Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1997-07-09
1999-07-27
Dentz, Bernard
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549257, 549262, 562591, 562595, C07D30760, C07C 5100, C07C 51087
Patent
active
059292555
ABSTRACT:
The present invention provides a process for recovering fumaric acid formed as a by-product during the production of maleic anhydride so that both fumaric acid and maleic anhydride are obtained. The process of the present invention further eliminates the wasting of MAN that occurs when fumaric acid is incinerated and improves the production of maleic anhydride by eliminating a source of fouling caused by the fumaric acid which leads to down-time in the reaction process to clean out the fumaric acid.
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patent: 3865849 (1975-02-01), Garkisch et al.
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patent: 3993671 (1976-11-01), Ramioulle
patent: 4191695 (1980-03-01), Neri et al.
Dr. Kurt Lohbeck, Veba Chemie AG/Werk Bottrop Postfach 740, 425 Bottrop "Experience With Continuous Maleic Acid Anhydride Distillation by the Veba-Chemie/Lurgi Method". Presented at the Fourth Communal Conference OGEW/DGMK on Oct. 4-6, 1976 in Salzburg.
BP Amoco Corporation
Dentz Bernard
Kanady Mary Jo
Oliver Wallace L.
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