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

US8350063B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Markus Siegert · Heidelberg, DE
• Neven Lang · Mannheim, DE
• Laszlo Szarvas · Ludwigshafen, DE
• Christoph Sigwart · Schriesheim, DE
• Franz Niklaus Windlin · Heidelberg, DE
• Eckhard Stroefer · Mannheim, DE

Key dates

• Filing date: Sep 22, 2008
• Grant date: Jan 8, 2013
• Expiry date: Jan 5, 2030

Classification

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

Abstract

A process for separating trioxane from a feed stream I comprising formaldehyde, trioxane and water, in which