Process for the preparation of pulverulent alkoxycarbonylaminotriazine

US8030485B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Joerg Schneider · Weinheim, DE
• Guenter Scherr · Ludwigshafen, DE
• Rainer Erhardt · Shanghai, CN
• Andreas Eichfelder · Frankenthal (Pfalz), DE
• Martin Reif · Lichtenfels, DE
• Stefan Hirsch · Neustadt, DE
• Georg Sieder · Bad Dürkheim, DE
• Thomas Holtmann · Speyer, DE
• Juergen Ciprian · Ludwigshafen, DE
• Hermann Ascherl · Dirmstein, DE

Key dates

• Filing date: May 31, 2006
• Grant date: Oct 4, 2011
• Expiry date: Dec 2, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D251/70
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing free-flowing, pulverulent alkoxycarbonylaminotriazine from an alkanolic reaction mixture which is obtained in the preparation of alkoxycarbonylaminotriazines and comprises at least one alkoxycarbonylaminotriazine, at least one cyclic and/or acyclic carbonic ester, at least one C1-C13-alkanol which optionally comprises one or two oxygen atoms in the form of ether bonds and is optionally substituted by C1-C4-alkyl and/or hydroxyl, and also at least one alkali metal or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, by atomizing and drying the reaction mixture in a spray drier.