Conditioning of double metal cyanide catalysts

US9114380B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Igor Shishkov · Mannheim, DE
• Sirus Zarbakhsh · Ludwigshafen, DE
• Ronald Adelmann · Darmstadt, DE
• Wolfgang Rohde · Speyer, DE
• Achim Loeffler · Puming, CN

Key dates

• Filing date: Oct 1, 2010
• Grant date: Aug 25, 2015
• Expiry date: Apr 13, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/2663
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.