Nitration of aromatic hydrocarbons

US6362381B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Matthias Eiermann · Schifferstadt, DE
• Klaus Ebel · Lampertheim, DE

Key dates

• Filing date: Sep 6, 2001
• Grant date: Mar 26, 2002
• Expiry date: Sep 6, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C201/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Aromatic hydrocarbons are nitrated by a process in which the aromatic hydrocarbon is reacted in the liquid phase with an oxide of nitrogen selected from NO, N2O3, NO2 and N2O4 and with an oxygen-containing gas stream in the presence of a heterogeneous oxidic catalyst, wherein at least 0.1 mol %, based on the aromatic hydrocarbon, of water is present at the beginning of the reaction.