Process for preparing solid alkaline earth metal salts of secondary paraffinsulphonic acids

US8426635B2 · kind B2 · utility

Assignee

• Clariant Finance (BVI) Limited · VG

Inventors

• Gerd Reinhardt · Kelkheim, DE
• Peter Naumann · Stockelsdorf, DE
• Georg Borchers · Bad Nauheim, DE
• Mathias Groeschen · Hadamar, DE

Key dates

• Filing date: Mar 4, 2009
• Grant date: Apr 23, 2013
• Expiry date: Mar 4, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D11/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing solid alkaline earth metal salts of secondary paraffinsulphonic acids is claimed. This process comprises converting an aqueous solution of a secondary paraffinsulphonic acid and an alkaline earth metal hydroxide into solid form by spray drying.