Processes for producing caprolactam and derivatives thereof from fermentation broths containing diammonium adipate, monoammonium adipate and/or adipic acid

US8703900B2 · kind B2 · utility

Assignee

• BIOAMBER INC. · US

Inventors

• Olan S. Fruchey · Port Aransas, US
• Leo Ernest Manzer · Wilmington, US
• Dilum Dunuwila · Okemos, US
• Brian T. Keen · Charleston, US
• Brooke A. Albin · Charleston, US
• Nye A. Clinton · Hurricane, US
• Bernard D. Dombek · Charleston, US

Key dates

• Filing date: Jun 10, 2011
• Grant date: Apr 22, 2014
• Expiry date: Jun 10, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12P17/10
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Processes for making caprolactam (CL) from monoammonium adipate (MAA) and/or adipic acid (AA) obtained from a clarified diammonium adipate-containing (DAA-containing) fermentation broth or MAA-containing fermentation broth and converting the MAA or AA to the CL with hydrogen in the presence of a catalyst at selected temperatures and pressures.