C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
202/62, 260/709.
C07C 11/09 (2006.01) C07C 1/24 (2006.01)
Patent
CA 1185271
Abstract of the Disclosure In a process for the production of isobutene, tertiary butanol, in an aqueous solution containing from 40 to 90 percent by weight of tertiary butanol in a homogeneous liquid phase, is dehydrated on a fixed catalytic bed consisting of a strongly acidic ion exchange resin at a temperature from 80 to 150°C and at a pressure from 5 to 25 bars. The homogeneous, liquid reaction mixture is fractionated in ii distillation column which is separate from the reaction chamber, to separate the isobutene from the water and the unreacted tertiary butanol. The unreacted tertiary butanol is returned to the reactor, as an aqueous solution at a circulating flow rate so that a mixture of fresh- fed tertiary butanol and the circulating tertiary butanol/water mix contains from 10 to 90 percent by weight of tertiary butanol at the reactor inlet.
418640
Balke Heinrich
Greving Bernd
Obenaus Fritz
Scholz Bernhard
Chemische Werke Huls Aktiengesellschaft
Degussa-Huls Aktiengesellschaft
Fetherstonhaugh & Co.
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