Distillation: processes – separatory – Plural distillations performed on same material – One a distillation under positive pressure or vacuum
Patent
1983-08-25
1986-05-20
Bashore, S. Leon
Distillation: processes, separatory
Plural distillations performed on same material
One a distillation under positive pressure or vacuum
203 77, 203 78, 203 82, 203 87, 203DIG19, 203 99, 526348, 159DIG18, B01D 300
Patent
active
045899576
ABSTRACT:
Improved process for the separation of a hydrocarbon-containing feedstream comprising monomer, comonomer and diluent into separate product streams which comprises subjecting the feedstream to two-stage distillation provided with a common accumulation zone wherein the condensate from the accumulation zone serves as the source of feed for the second distillation and reflux for the first distillation. In a specific embodiment, a feed comprising ethylene, 1-hexene, and isobutane is separated into separate streams of 1-hexene, ethylene and isobutane, and isobutane for recycle to polymerization.
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Chemical Engineering Progress, vol. 66, No. 8, Aug. 1970, pp. 54-60.
Hanson Donald O.
Sherk Fred T.
Bashore S. Leon
Doescher Howard D.
Manoharan V.
Phillips Petroleum Company
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