Two product process for methyl tertiary butyl ether production

Details Two product process for methyl tertiary butyl ether production Two product process for methyl tertiary butyl ether production

1981-12-18

1983-11-01

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

44 56, 44 77, 203DIG13, C07C 4105

Patent

active

044131500

ABSTRACT:
A hydrocarbon conversion process which net high purity isobutane feed streams into two product streams containing an ether such as methyl tertiary butyl ether (MTBE) by reaction with methanol or ethanol. The isobutylene, alcohol and a recycle stream containing C.sub.4 hydrocarbons, alcohol and the product ether are passed through an etherification zone. The total etherification zone effluent stream is separated in a single fractionation column. Preferably the new overhead of the fractionation column is divided into the recycle stream and a second portion which is combined with a portion of the bottoms of this column to produce a gasoline grade MTBE product stream. The remainder of the fractionation column bottoms is a second product stream of chemical grade MTBE.

REFERENCES:
patent: 2720547 (1955-10-01), Wolff et al.
patent: 4182913 (1980-01-01), Takezono et al.
patent: 4193770 (1980-03-01), Chase et al.
patent: 4219678 (1980-08-01), Obenaus et al.
patent: 4252541 (1981-02-01), Herbstman
patent: 4282389 (1981-08-01), Droste et al.
patent: 4310710 (1982-01-01), Torck et al.
Chemical & Engineering News, Jun. 25, 1979, pp. 35-36 by Stephen C. Stinson entitled "New Plants, Processes Set for Octane Booster".
Paper presented at AIChE 85th National Meeting, Jun. 4-8, 1978 by Fritz _Obenaus & Wilhelm Droste, entitled "Huls-Process: Methyl Tertiary Butylether".

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