Patent · US Expired

Distillation column with vaporous sidestream removal

US5336376A · kind A · utility

3Cited by

10References

3Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Siegfried Taurat · Leverkusen, DE
Heinrich Steude · Leverkusen, DE
Ludwig Deibele · Neunburg vorm Wald, DE
Heinz-Jurgen Alpers · Krefeld, DE

Key dates

Filing date	Apr 27, 1993
Grant date	Aug 9, 1994
Priority date	—
Expiry date	Apr 27, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S203/90
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a distillation column with vaporous sidestream removal, the vaporous product removed is condensed in a condenser. The vapor pipe provided for the removal of product opens into a dip tank of which the upper end is connected to the condenser while its lower end is connected to a discharge pump. Inert gas present in the condensate is returned to the column above the sidestream removal through an inert gas pipe arranged at the upper end of the condenser.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.