Method for producing alcohol surfactants and alcohol ether surfactants, the products obtained and their use

US6906230B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Heiko Maas · Mannheim, DE
• Michael Roper · Monsheim, DE
• Marc Walter · Bischofswerda, DE
• Ralf Schulz · Speyer, DE
• Jurgen Tropsch · Lichtenfels, DE
• Hans-Ulrich Jager

Key dates

• Filing date: Mar 17, 2000
• Grant date: Jun 14, 2005
• Expiry date: Mar 17, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2523/755
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention describes a process for the preparation of surfactant alcohols and surfactant alcohol ethers which are, inter alia, highly suitable as surfactants or for the preparation of surfactants. The process, starting from olefin mixtures having a defined minimum content of linear hexenes, gives mixtures having a predominant fraction of branched dodecenes, which are subsequently derivatized to give surfactant alcohols and then optionally alkoxylated.The surfactant alcohol mixture obtained in the process has a degree of branching of from 2.0 to 3.0 and in particular exhibits advantageous properties as regards ecotoxicity and biodegradability.A description is also given of the use of the surfactant alcohols and surfactant alcohol ethers as surfactants by glycosidation or polyglycosidation, sulfation or phosphation.