Method of stabilizing aldehydes

US6137013A · kind A · utility

Assignee

• Celanese GmbH · US

Inventors

• Michael Riedel · Essen, DE
• Wolfgang Zgorzelski · Oberhausen, DE
• Michael Messerschmidt · Dinslaken, DE
• Klaus Bergrath · Oberhausen, DE

Key dates

• Filing date: Dec 15, 1998
• Grant date: Oct 24, 2000
• Expiry date: Dec 15, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/86
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method of stabilizing aliphatic C.sub.3 -C.sub.14 -aldehydes against polymerization and autocondensation by the addition of alkaline substances to the aldehydes wherein the alkaline substances used are alkali metal hydroxides, alkaline earth metal hydroxides, alkali metal carbonates, alkaline earth metal carbonates or alkali metal carboxylates which are added to the aldehyde to be stabilized in amounts of 0.05-20 ppm, based on the aldehyde.