Invention Grant
- Patent Title: Method and system for producing nitrobenzene
- Patent Title (中): 制备硝基苯的方法和系统
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Application No.: US14374665Application Date: 2013-01-28
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Publication No.: US09139508B2Publication Date: 2015-09-22
- Inventor: Bernd Pennemann , Juergen Munnig , Wulf Dietrich , Andreas Karl Rausch
- Applicant: Bayer Intellectual Property GmbH
- Applicant Address: DE Monheim
- Assignee: Bayer Intellectual Property GmbH
- Current Assignee: Bayer Intellectual Property GmbH
- Current Assignee Address: DE Monheim
- Agent Donald R. Palladino
- Priority: EP12153202 20120131
- International Application: PCT/EP2013/051561 WO 20130128
- International Announcement: WO2013/113651 WO 20130808
- Main IPC: C07C201/08
- IPC: C07C201/08 ; C07C205/06 ; C01B17/94 ; C01B17/88
Abstract:
The present invention relates to a process and a plant for the production, in particular the continuous production, of nitrobenzene by means of adiabatic nitration of benzene with nitric acid in the presence of sulfuric acid, in which, following the nitration, a multi-stage concentration of the sulfuric acid is carried out by means of heating at a pressure that is reduced as compared with ambient pressure, and wherein the heating takes place using the heat generated in the adiabatic nitration of benzene.
Public/Granted literature
- US20140357905A1 METHOD AND SYSTEM FOR PRODUCING NITROBENZENE Public/Granted day:2014-12-04
Information query
