Distilling column

US4032410A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Bernhard Kuxdorf · Münstermaifeld, DE
• Herbert Pusche
• Heinz Erpenbach · Cologne, DE
• Wernfried Riechmann

Key dates

• Filing date: Apr 20, 1976
• Grant date: Jun 28, 1977
• Expiry date: Apr 20, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D3/32
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A distillation column comprising a shell which has serially arranged therein a plurality of distilling trays with respective liquid inlets and outlets. An annular slit of substantially uniform width is left between the individual trays and the shell. The slit may be interrupted by a plurality of spacers which bear against the inner surface of the shell, and the spacers are provided around the periphery of the individual trays.