Distillation: processes – separatory – Adding material to distilland except water or steam per se – At least two materials
Patent
1989-07-12
1990-07-31
Manoharan, Virginia
Distillation: processes, separatory
Adding material to distilland except water or steam per se
At least two materials
203 56, 203 58, 203 65, 203 69, 585313, 585833, B01D 340
Patent
active
049448498
ABSTRACT:
A mixture of (a) at least one saturated C5-C9 alcohol (preferably cyclohexanol) and (b) at least one sulfolane (preferably unsubstituted sulfolane, cyclotetramethylene sulfone) is used as solvent in the extractive distillation of a feed mixture of cycloalkane(s) in particular cyclohexane) and close-boiling alkane(s). A novel composition of matter contains (a) and (b), as defined above, and optionally also (c) water.
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Brandes K. K.
Manoharan Virginia
Phillips Petroleum Company
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