Distillation: processes – separatory – Adding material to distilland except water or steam per se – Organic compound
Patent
1994-05-31
1995-09-26
Manoharan, Virginia
Distillation: processes, separatory
Adding material to distilland except water or steam per se
Organic compound
203 78, 203 80, 203DIG9, 549541, B01D 340, C07D30132
Patent
active
054531608
ABSTRACT:
An extractive distillation agent comprising a mixture of polyoxypropylene glycols is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead distillate anhydrous propylene oxide fraction contaminated with reduced quantities of methanol and a heavier bottoms distillation fraction containing the polyoxypropylene glycols, water and acetone and some of the methanol introduced into the distillation column.
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CA 76: 34601.
Culbreth, III William K.
Mueller Mark A.
Peters Michael W.
Bailey James L.
Manoharan Virginia
Priem Kenneth R.
Ries Carl G.
Texaco Chemical Inc.
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