Method for extracting tobacco alkaloids

US5119835A · kind A · utility

Assignee

• B.A.T. Cigarettenfabriken GmbH · DE

Inventors

• Volker Heemann · Goldkronach, DE
• Gerald Schmekel · Elmshorn, DE
• Uwe Werner Ehling · Goldkronach, DE
• Bernhard Hauser · Schenefeld, DE
• Casper H. Koene · Hamburg, DE
• Helge Rabitz · Hamburg, DE

Key dates

• Filing date: Jan 29, 1991
• Grant date: Jun 9, 1992
• Expiry date: Jan 29, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S131/90
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method is described for extracting tobacco alkaloids from tobacco in which the tobacco alkaloids are extracted from the tobacco with carbon dioxide under supercritical conditions and the tobacco alkaloids separated from the carbon dioxide, wherein in the carbon dioxide for the extraction of the tobacco alkaloids from the tobacco is mixed with a solid 2 to 3-basic organic acid having a total of 2 to 6 carbon atoms, a monoalkali or monoammonium salts thereof in order to appreciably shorten the extraction times.