Process for the decomposition of methyl-tert-butyl ether

A process for recovering isobutylene (B) and methanol (C) by decomposing methyl-tert-butyl ether (MTBE) (A) is provided, which comprises a reaction distillation wherein (a) MTBE is decomposed in the presence of acid catalyst in the liquid phase (1), (b) decomposition product is distilled under reflu...

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Bibliographische Detailangaben
Hauptverfasser:	TOKUMARU, TOORU, DEGUCHI, TAKASHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL METHODS OF ORGANIC CHEMISTRY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for recovering isobutylene (B) and methanol (C) by decomposing methyl-tert-butyl ether (MTBE) (A) is provided, which comprises a reaction distillation wherein (a) MTBE is decomposed in the presence of acid catalyst in the liquid phase (1), (b) decomposition product is distilled under reflux in a distillation column (2) to separate isobutylene from the top of the said column and methanol from a side cut effluent and/or effluent from the bottom of the said column. Methanol is preferably separated (3) from the effluent which is then returned to (a) and/or (b).