Addition of mineral acids or salts thereof to a TMA production process

Addition of mineral acids or salts thereof to a TMA production process

This invention is related to the production of trimellitic anhydride (TMA). More specifically, the invention is related to the addition of a mineral acid or salt thereof in the production process of trimellitic anhydride to reduce the viscosity of the bottoms fraction when TMA is purified by distill...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: CEREFICE STEVEN A.,YOUNG DAVID A.,SCHAMMEL WAYNE P
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:This invention is related to the production of trimellitic anhydride (TMA). More specifically, the invention is related to the addition of a mineral acid or salt thereof in the production process of trimellitic anhydride to reduce the viscosity of the bottoms fraction when TMA is purified by distillation and thus to prevent fouling/plugging. This permits the use of lower levels of TMA in the bottoms fraction and increases TMA recovery.