Method for the production of a purified melt of at least one monomer

US7129376B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ulrich Hammon · Mannheim, DE
• Bernd Eck · Viernheim, DE
• Dieter Baumann · Greven, DE
• Joerg Heilek · Bammental, DE
• Klaus Joachim Mueller-Engel · Blankenloch, DE

Key dates

• Filing date: May 2, 2002
• Grant date: Oct 31, 2006
• Expiry date: Jun 24, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/48
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the production of a purified melt of a monomer melt obtained by condensation, absorption or extraction in a crystallizer, wherein the inlet to the crystallizer is subjected to a mechanical solid/liquid separation operation.