Method for the continuous hydroformylation of polyakenes having 30 to 700 carbon atoms

US6849769B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Michael Roper · Monsheim, DE
• Heinrich-Josef Blankertz · Hamm (Sieg), DE
• Armin Volker Grenacher · Mutterstadt, DE
• Roland Krokoszinski · Bad Dürkheim, DE
• Willi Schönmann · Schifferstadt, DE

Key dates

• Filing date: Sep 11, 2001
• Grant date: Feb 1, 2005
• Expiry date: Jan 28, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S585/901
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Essentially monounsaturated polyalkylenes having from 30 to 700 carbon atoms are continuously hydroformylated by a process in which i) a hydroformylation-active cobalt carbonyl catalyst is prepared from a catalyst precursor dissolved in an aqueous phase in the absence of the polyalkylenes, ii) the polyalkylenes are hydroformylated by means of synthesis gas in the presence of the cobalt carbonyl catalyst in a reaction zone, iii) the cobalt carbonyl catalyst is separated from the output from the reaction zone with at least partial reformation of the catalyst precursor and the catalyst precursor is recirculated to step i).