Thermal separation process

US9018416B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Klaus Joachim Mueller-Engel · Blankenloch, DE
• Thomas Walter · Dallas, US
• Frank Huetten · Mannheim, DE
• Markus Ottenbacher · Wilhelmsfeld, DE
• Ulrich Hammon · Mannheim, DE

Key dates

• Filing date: Mar 14, 2013
• Grant date: Apr 28, 2015
• Expiry date: May 8, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/3327
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A thermal separation process between a gas ascending in a separating column and a liquid descending in the separating column, which comprise (meth)acrylic monomers, wherein the separating column comprises a sequence of crossflow mass transfer trays, the crossflow mass transfer trays of which have passage orifices for the ascending gas in crossflow direction both in front of and beyond a downcomer for the descending liquid, and such crossflow mass transfer trays and one such crossflow mass transfer tray in a sequence of crossflow mass transfer trays present in a separating column.