Process for the removal of alcohols

US5480978A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Wilhelm Johannisbauer · Erkrath, DE
• Hermann Koerner · Goldkronach, DE
• Michael Nitsche · Solingen, DE

Key dates

• Filing date: Jul 28, 1994
• Grant date: Jan 2, 1996
• Expiry date: Jul 28, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07H15/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the removal of alcohols containing up to 30 and, more particularly, between 8 and 18 carbon atoms by distillation from a mixture of alkyl glycosides and alcohols remaining unreacted in the production of these alkyl glycosides, the alcohols being removed in two stages, a falling-film evaporator being used in the first stage and a thin-layer evaporator being used in the second stage.