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:
May. 10, 2011
Filed:
Aug. 22, 2007
Günther Bub, Marl, DE;
Jürgen Mosler, Marl, DE;
Franz-felix Kuppinger, Marl, DE;
Andreas Sabbagh, Bensheim, DE;
Guido Stochniol, Haltern am See, DE;
Jörg Sauer, Dülmen, DE;
Markus Winterberg, Datteln, DE;
Udo Knippenberg, Marl, DE;
Günter Latoschinski, Marl, DE;
Franck Furno, Düsseldorf, DE;
Thorsten Schwärtzke, Marl, DE;
Jörg Leistner, Rheda-Wiedenbrück, DE;
Günther Bub, Marl, DE;
Jürgen Mosler, Marl, DE;
Franz-Felix Kuppinger, Marl, DE;
Andreas Sabbagh, Bensheim, DE;
Guido Stochniol, Haltern am See, DE;
Jörg Sauer, Dülmen, DE;
Markus Winterberg, Datteln, DE;
Udo Knippenberg, Marl, DE;
Günter Latoschinski, Marl, DE;
Franck Furno, Düsseldorf, DE;
Thorsten Schwärtzke, Marl, DE;
Jörg Leistner, Rheda-Wiedenbrück, DE;
Evonik Stockhausen GmbH, Kredfeld, DE;
Abstract
The present invention relates to a process for production of acrylic acid, comprising the steps of a) dehydration of glycerine to an acrolein-comprising dehydration product; b) gas phase oxidation of the dehydration product to obtain an acrylic acid-comprising monomer gas; c) bringing into contact of the monomer gas with a quench agent to obtain an acrylic acid-comprising quench phase; and d) work-up of the quench phase to obtain an acrylic acid-comprising monomer phase; whereby, during the dehydration a liquid phase a1 and a gas phase a2 is present, whereby in the liquid phase a1 a plurality of gas bubbles is generated, as well as a process for production of polymers by polymerization of acrylic acid, preferably for production of water-absorbing polymers, the water-absorbing polymers obtainable by this process, a composite, a process for production of a composite, the composite obtainable by this process, and further chemical products.