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:
Sep. 17, 2013
Filed:
Dec. 19, 2008
Sascha Braune, Luftenberg an der Donau, AT;
Stefan Steinhofer, Gurten, AT;
Peter Poechlauer, Linz, AT;
Rafael Wilhelmus E. G. Reintjens, Maaseik, BE;
Nicole Theodora W. Linssen, Kessenich, BE;
Mehul Thathagar, Geleen, NL;
Sascha Braune, Luftenberg an der Donau, AT;
Stefan Steinhofer, Gurten, AT;
Peter Poechlauer, Linz, AT;
Rafael Wilhelmus E. G. Reintjens, Maaseik, BE;
Nicole Theodora W. Linssen, Kessenich, BE;
Mehul Thathagar, Geleen, NL;
DSM Fine Chemicals Austria NFG GmbH & Co KG, Linz, AT;
Abstract
A process for the continuous production of a compound of Formula (II), HO—R—ONO(II) wherein Ris a straight chain alkyl radical having from 3 to 6 carbon atoms, in a two-phase solvent system, comprising contacting a compound of Formula (I), HO—R—OH (I) wherein Ris as defined above, with nitric acid in the presence of a first solvent, wherein the compound of Formula (II) is continuously extracted into a second solvent, and the reaction is carried out in a mixing microreactor which provides a power loss of at least 1.3 times the power loss provided under identical conditions by a circular cross-section straight-channel microreactor having an internal diameter equal to the average hydraulic diameter of the mixing microreactor and a length equal to the length of the mixing microreactor.