Patent attributes
A process for the dissociation of methyl tert-butyl ether (MTBE), which includes at leasta) catalytic dissociation of MTBE which is present in two streams I and VII over a catalyst to give a dissociation product II,b) separation by distillation of the dissociation product II obtained in a) into an overhead stream III containing more than 90% by mass and a bottom stream IV containing diisobutene, MTBE and more than 80% of the methanol present in the dissociation product II,c) separation by distillation of the bottom stream IV obtained in b) into a methanol-containing bottom stream V, a side stream VI containing diisobutene, methanol and MTBE and an overhead stream VII containing MTBE and methanol andd) recirculation of the overhead stream VII to a).
