Surfactants with a polyethersulfonate structure method for production thereof and use thereof for tertiary crude oil production

US8465668B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christian Bittner · Bensheim, DE
• Oetter Günter · Bischofswerda, DE
• Ulrich Steinbrenner · Kohlhof, DE
• Jürgen Huff · Ludwigshafen, DE
• Marcus Guzmann · Bad Windsheim, DE

Key dates

• Filing date: Oct 15, 2008
• Grant date: Jun 18, 2013
• Expiry date: Aug 26, 2030

Classification

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

Abstract

Surfactants with polyether sulfonate structure, which have a propanonylsulfonic acid group as a head group, a process for preparing such surfactants and their use for tertiary mineral oil extraction.