Ether recovery

Details Ether recovery Ether recovery

1992-12-30

1994-07-12

Mars, Howard T.

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

Organic compounds

Oxygen containing

C07C 4134, C07C 4138

Patent

active

053290518

ABSTRACT:
The alcohol, ether and hydrocarbon components of the reaction effluent from various etherifications of C.sub.4 or C.sub.5 isoolefins with an alcohol such as methanol or ethanol which produce MTBE, ETBE, TAME, or TAEE are separated using identical process equipment. The components are recovered by first removing a portion of the alcohol in a first water extraction step, then fractionating the ether, followed by the removal of additional alcohol in a second water extraction step and then fractionating the alcohol. Hydrocarbons are recovered from a extract stream of the second water extraction step.

REFERENCES:
patent: 3846088 (1974-11-01), Brown et al.
patent: 4118425 (1978-10-01), Herbstman
patent: 4198530 (1980-04-01), Wentzheime et al.
patent: 4479018 (1984-10-01), Pool
patent: 4490563 (1984-12-01), Pool et al.
patent: 4544776 (1985-10-01), Osterburg et al.
patent: 4664675 (1987-05-01), Torck et al.
patent: 4820877 (1989-04-01), Harandi

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