Process for the mild distillative separation of mixtures

Details Process for the mild distillative separation of mixtures Process for the mild distillative separation of mixtures

2003-05-12

2008-10-14

Manoharan, Virginia (Department: 1797)

Distillation: processes, separatory

And returning product of distillation step to distillation zone

C203SDIG016, C203SDIG011, C568S749000, C568S934000, C585S800000

Reexamination Certificate

active

07435319

ABSTRACT:
The invention relates to a semibatchwise process for the mild distillative separation of mixtures, in a first stage a column being supplied continuously with a feed and the feed being separated at least into different fractions, one of the fractions being removed continuously into a container, and, in a second step, the fraction removed into the container being recycled to the column and being separated again batchwise into different fractions.

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Maczynski and Maczynska (Przemysl Chemiczny 49/10, (Month unavailable) 1970, pp. 599-601 “Rektyfikacja ciagla na kolumnie periodycznej”.
cf. Kaibel, Krug, Chemie Ingenieur Technik [Chemical Engineering] 70, (month unavailable) 1998, pp. 711-713 “Abwärtsfahrweise und Zwischenspeicherung bei der diskontinuierlichen Destillation”.

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