Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification

US7713387B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Markus Siegert · Heidelberg, DE
• Neven Lang · Mannheim, DE
• Eckhard Ströfer · Mannheim, DE
• Achim Stammer · Freinsheim, DE
• Thorsten Friese · Mannheim, DE
• Hans Hasse · Kaiserslautern, DE

Key dates

• Filing date: Dec 21, 2004
• Grant date: May 11, 2010
• Expiry date: Sep 12, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D323/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by