Patent · US Active

Method for producing nitrobenzene by adiabatic nitriding

US9284255B2 · kind B2 · utility

1Cited by

10References

15Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Thomas Knauf · Dormagen, DE
Alexandre Racoes · Krefeld, DE
Wolfgang Dohmen · Duisburg, DE
Antoni Mairata · Düsseldorf, DE

Key dates

Filing date	Jul 23, 2013
Grant date	Mar 15, 2016
Priority date	—
Expiry date	Jul 23, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C201/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to an adiabatic process for producing nitrobenzene by nitrating benzene with sulphuric acid mixtures and nitric acid mixtures using a stoichiometric excess of benzene and reusing non-reacted benzene, the content of the aliphatic organic compounds in the feed benzene being limited, by the targeted evacuation of aliphatic organic compounds to at least one step in the process, to a content of less than 1.5 mass-%, in relation to the total amount of feed benzene.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.