Process for isolation of an organic amine

US7977514B2 · kind B2 · utility

Assignee

• DSM IP ASSETS B.V. · NL

Inventors

• Alexander Volker Peters · Aachen, DE
• Gerardus Johannes Paulus Krooshof · Sittard, NL
• Nicolaas M.H. Beckers · Cadier en Keer, NL
• John Krijgsman · Dordrecht, NL

Key dates

• Filing date: Dec 20, 2006
• Grant date: Jul 12, 2011
• Expiry date: Dec 20, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/86
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the isolation of an organic amine from a composition comprising the organic amine and an acid, or a salt of the organic amine and the acid, wherein the process comprises steps wherein ammonia or hydrazine is added to the composition thereby forming a multi-phase system comprising an organic amine-rich phase and an acid-rich phase, the organic amine-rich phase and the acid-rich phase obtained in step (i) are separated, and the organic amine is isolated from the organic amine-rich phase.