Bicyclic decanedioic acids, a process for their production, and their use as flotation aids

US4956124A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Horst Eierdanz · Hilden, DE
• Paul Schulz · Wuppertal, DE
• Wolfgang von Rybinski · Goldkronach, DE
• Rita Koester · Goldkronach, DE

Key dates

• Filing date: May 11, 1988
• Grant date: Sep 11, 1990
• Expiry date: May 11, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B03D2203/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Bicyclic decanedioic acids corresponding to the following general formula ##STR1## in which R represents a C.sub.1 -C.sub.22 alkyl radical, a C.sub.2 -C.sub.34 alkylcarbonyl radical, or a residue of a polyalkoxylated C.sub.2 -C.sub.22 fatty alcohol, represent a new class of dicarboxylic acids which are useful as flotation aids in the flotation of non-sulfidic ores.