Process for recycling a liquid hydroformylation discharge

US6100432A · kind A · utility

Assignee

• BASF SE

Inventors

• Franz Borgel · Dirmstein, DE
• Rolf Muller · Karben, DE
• Roland Krokoszinski · Bad Dürkheim, DE

Key dates

• Filing date: May 29, 1998
• Grant date: Aug 8, 2000
• Expiry date: May 29, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the purification of a substantially liquid effluent containing aldehydes and unconverted olefins coming from a hydroformylation reactor following low-pressure hydroformylation of C.sub.2 -C.sub.20 olefins or olefin mixtures containing different isomers of the respective olefins, said hydroformylation being catalyzed by means of a phosphorous rhodium catalyst homogeneously dissolved in the reaction medium and carried out at a temperature of from 50.degree. to 150.degree. C. and a pressure of from 2 to 30 bar.