Solid phase extraction method for obtaining high-purity unsaturated compounds or derivatives of said compounds

US7365219B2 · kind B2 · utility

Assignee

• Nutrinova Nutrition Specialist & Food Ingredients GmbH · DE

Inventors

• Dirk Fabritius · Mainz, DE
• Silke Reimann · Ansbach, DE
• Doreen Neumann · Hofheim, DE
• Daniel Minoer · Frankfurt am Main, DE

Key dates

• Filing date: Jun 5, 2002
• Grant date: Apr 29, 2008
• Expiry date: Jul 16, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/56
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a novel extraction method for obtaining at least one unsaturated, optionally derivatized compound, from mixtures of said compounds with other less saturated constituents, e.g. for obtaining polyunsaturated fatty acids or the derivatives thereof from mixtures with saturated and/or less unsaturated, optionally derivatized fatty acids, by means of selective complexation with a cation exchanger which is partially or fully charged with silver ions, and subsequent decomplexation.