Surfactants for tertiary mineral oil extraction based on branched alcohols

US8080588B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christian Bittner · Bensheim, DE
• Günter Oetter · Bischofswerda, DE
• Ulrich Steinbrenner · Kohlhof, DE
• Marcus Guzmann · Bad Windsheim, DE
• Andrea Haunert · Mannheim, DE
• Rainer Papp · Speyer, DE
• Jens Rudolph · Abu Dhabi, AE

Key dates

• Filing date: Apr 8, 2009
• Grant date: Dec 20, 2011
• Expiry date: Jan 27, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Surfactants of the general formula R1—X where R1 is an aliphatic C17H35-alkyl radical and X is a hydrophilic group, and the mean degree of branching of the R1 radical is from 2.8 to 3.7. Mixtures which comprise such surfactants and the use of such surfactants and of mixtures thereof for tertiary mineral oil extraction.