Separation of alcohol from alcohol/ether/olefin/non-linear hydro

Details Separation of alcohol from alcohol/ether/olefin/non-linear hydro Separation of alcohol from alcohol/ether/olefin/non-linear hydro

1992-11-02

1994-03-15

Drodge, Joseph W.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

21050039, 210649, 568699, B01D 1500

Patent

active

052943445

ABSTRACT:
Mixtures comprising alcohol/ether
on-linear hydrocarbon are separated using polyester or polyester polyimide copolymer membranes. The mixture is contacted under pervaporation conditions with the membrane and the alcohol selectively permeates through the membrane. In this way alcohol especially C.sub.1 -C.sub.10, preferably C.sub.1 -C.sub.4 alcohols can be effectively removed from the synthesis solutions used for the production of high value ethers such as methyl-tertiary butyl ether (MTBE) or tertiary-amyl methyl ether (TAME) used as octane enhancers in motor fuels.

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patent: 4798674 (1989-01-01), Pasternak et al.
patent: 4944880 (1990-07-01), Ho et al.
patent: 5139677 (1992-08-01), Pasternak
patent: 5230801 (1993-07-01), Darnell et al.
patent: 5238573 (1993-08-01), Pasternak
Hackh's Chemical Dictionary, Fourth Edition, Copyright 1969 by McGraw-Hill, Inc., pp. 248-250.
"Preparation as an Alternative Process for the Separation of Methanol from C4 Hydrocarbons in the Production of MTBE and TAME", Furnand et al, Published in AICHE Symposium Series 85 (272) 82 pp. 89-92, 1989.

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