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:
Oct. 30, 2012
Filed:
Jul. 24, 2009
Till Blum, Kuantan, MY;
Peter Zurowski, Landau, DE;
Steffen Rissel, Kirchheim, DE;
Sylke Haremza, Neckargemuend, DE;
Thorsten Friese, Mannheim, DE;
Ulrich Jaeger, Roemerberg, DE;
Volker Schliephake, Schifferstadt, DE;
Klaus Joachim Mueller-engel, Stutensee, DE;
Ulrich Hammon, Mannheim, DE;
Joerg Heilek, Bammental, DE;
Imke Britta Mueller, Heidelberg, DE;
Till Blum, Kuantan, MY;
Peter Zurowski, Landau, DE;
Steffen Rissel, Kirchheim, DE;
Sylke Haremza, Neckargemuend, DE;
Thorsten Friese, Mannheim, DE;
Ulrich Jaeger, Roemerberg, DE;
Volker Schliephake, Schifferstadt, DE;
Klaus Joachim Mueller-Engel, Stutensee, DE;
Ulrich Hammon, Mannheim, DE;
Joerg Heilek, Bammental, DE;
Imke Britta Mueller, Heidelberg, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for separating acrylic acid present as a main product and glyoxal present as a by-product in a product gas mixture of a partial gas phase oxidation of a Cprecursor compound, in which a liquid phase P is obtained, which consists of acrylic acid to an extent of at least 70% of its weight and, based on the molar amount of acrylic acid present therein, comprises at least 200 molar ppm of glyoxal, in which the glyoxal is separated from the acrylic acid in the liquid phase P by crystallization.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile