Distillation: processes – separatory – With measuring – testing or inspecting
Patent
1996-10-17
1998-11-03
Manoharan, Virginia
Distillation: processes, separatory
With measuring, testing or inspecting
203 2, 203 3, 203 14, 203 62, 203 64, 549541, B01D 340, B01D 342, C07D30132
Patent
active
058303243
ABSTRACT:
In the continuous purification of a propylene oxide feedstock contaminated with water, methanol and acetone wherein an acetone buffer is established in the column, normal distillation conditions are maintained or restored during or after an upset by continuously monitoring predetermined distillation conditions in the acetone buffer zone, and adding additional acetone to the extractive distillation column when the monitored distillation condition deviates from a predetermined value by a predetermined amount.
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patent: 5145563 (1992-09-01), Culbreth, III et al.
patent: 5464505 (1995-11-01), Peters et al.
Downs James Joseph
Hiester Andrew Charles
Mueller Mark Allan
Nelson William Pleasie
Peters Michael Warren
Brown Ron D.
Huntsman Specialty Chemicals Corp.
Manoharan Virginia
Ries Carl G.
Stolle Russell R.
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