Distillation: processes – separatory – Addition of material to distilland to inhibit or prevent...
Patent
1991-12-06
1993-09-07
Bascomb, Jr., Wilbur
Distillation: processes, separatory
Addition of material to distilland to inhibit or prevent...
203 67, 203 73, 203 78, 203DIG19, 423 76, 423492, 570211, B01D 334, C01G 2302, C07C 1738
Patent
active
052425495
ABSTRACT:
An improved process for separation of valuable components of a waste stream resulting from production of an olefin polymerization procatalyst by the addition to the waste stream of a separation solvent of intermediate boiling point, subjecting the resulting mixture to a first distillation zone to separate the desired waste stream components from the upper portion of the zone and passing the bottoms product to a second distillation zone wherein separation solvent is recovered from the upper portion of the zone for recycle and passing the bottoms product to disposal or further processing.
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Cowan Stephen W.
Potter Michael W.
Tomaskovic Robert S.
Bascomb, Jr. Wilbur
Meyers, III Otto O.
Shell Oil Company
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