Method for producing nitroalkanes in a microstructured reactor

US9464029B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ralf Boehling · Lorsch, DE
• Michael Hayer · Bischofswerda, DE
• Alwin Rehfinger · Mutterstadt, DE
• Michael Schelper · Ludwigshafen, DE
• Johann-Peter Melder · Schifferstadt, DE
• Martin Ernst · Ludwigshafen am Rhein, DE
• Joaquim Henrique Teles · Waldsee, DE

Key dates

• Filing date: Apr 25, 2014
• Grant date: Oct 11, 2016
• Expiry date: Apr 25, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing nitroalkanes by reaction of at least one alkane with at least one nitrating agent in the gas phase, wherein the nitration is carried out in a microstructured reaction zone having parallel channels having hydraulic diameters of less than 2.5 mm and a total specific internal surface area of more than 1600 m2/m3 and the alkane and the nitrating agent are conveyed under a pressure of from 1 bar to 20 bar through the reaction zone and reacted at a temperature of from 150° C. to 650° C. and the reaction products are cooled downstream of the reaction zone and discharged and the at least one nitrating agent is introduced over from two to ten introduction points along the reaction zone.