The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2010
Filed:
Sep. 21, 2009
Thomas Knauf, Dormagen, DE;
Alexandre Racoes, Krefeld, DE;
Wolfgang Dohmen, Duisburg, DE;
Andreas Rausch, Neuss, DE;
Thomas Knauf, Dormagen, DE;
Alexandre Racoes, Krefeld, DE;
Wolfgang Dohmen, Duisburg, DE;
Andreas Rausch, Neuss, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
The invention relates to a continuous process for the manufacture of nitrobenzene. This process comprises the nitration of benzene with nitrating acid that contains at least 3.0 wt. % of nitric acid and at least 67.0 wt. % of sulfuric acid, in a reaction space in which the start temperature of the reaction is above 100.0° C. but below 102.0° C. In addition, this process requires that the benzene and the nitrating acid are dispersed in one another several times.