Process for cleaving alkyl tert.-alkyl ethers

Details Process for cleaving alkyl tert.-alkyl ethers Process for cleaving alkyl tert.-alkyl ethers

1991-03-07

1992-03-10

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

585639, 568866, C07C 100

Patent

active

050951645

ABSTRACT:
Alkyl tert.-alkyl ethers can be cleaved into the underlying alkanols and tert.-olefins in the presence of strongly acidic substances in a column apparatus, the strongly acidic substance being made available at the foot of the column. A particularly advantageous process design results when a water stream is fed below the top column tray in countercurrent to the tert.-olefin flowing upwards and is taken off again from the column above the bottom circulation; in the case of using an insoluble, strongly acidic substance, the latter is located in a catalyst bed at the foot of the column, and the alkyl tert.-alkyl ether is preferably fed in between the catalyst bed and the bottom circulation evaporator.

REFERENCES:
patent: 4320232 (1982-03-01), Volkamer et al.
patent: 4447668 (1984-05-01), Smith, Jr. et al.
patent: 4536605 (1985-08-01), Kida et al.
patent: 4751343 (1988-06-01), Reinhard et al.

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