PROCESS FOR PRODUCING HIGH PURITY ISOBUTENE BY DEHYDRATING TERTIARY BUTANOL

This is a process consisting of(i) continuously supplying aq. soln. contg. about 40-90 wt.% of TBA into rxn. container, (ii) dehydrating as a homogeneous liq. phase at 80-150 deg.C and at 5-25 bar on the fixed-catalyst-bed composed of strong acidic ionexchange resin, (iii) fractionally distg. homoge...

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Hauptverfasser:	SCHOLZ, BERNHARD, GREVING, BERND, BALKE, HEINRICH, OBENAUS, FRITZ
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	This is a process consisting of(i) continuously supplying aq. soln. contg. about 40-90 wt.% of TBA into rxn. container, (ii) dehydrating as a homogeneous liq. phase at 80-150 deg.C and at 5-25 bar on the fixed-catalyst-bed composed of strong acidic ionexchange resin, (iii) fractionally distg. homogeneous liq. rxn. mixt. at distg. parts sepd. from rxn. chamber and separating isobuten from water/unreacted TBA and (iv) concentrating unreacted TBA by distn. and resupplying into rxn. container with circulation rate (in here a mixt. of newly supplied TBA and TBA/water mixt. contd. about 40-90 wt.% of TBA, with excess water expelled.