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:
Aug. 23, 2016
Filed:
Jun. 12, 2015
Basf SE, Ludwigshafen, DE;
Volker Schliephake, Schifferstadt, DE;
Klaus Bott, Ludwigshafen, DE;
Rolf-Dieter Becher, Mannheim, DE;
Klaus Joachim Mueller-Engel, Stutensee, DE;
Jochen Petzoldt, Weisenheim am Berg, DE;
Ulrich Cremer, Mannheim, DE;
Andreas Raichle, Ludwigshafen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed, in which a heterogeneously catalyzed partial gas phase oxidation of an organic compound had been performed beforehand in a preceding fixed catalyst bed comprising Mo-comprising multielement oxide active compositions to form a steam-comprising product gas mixture, in which, before the recharge, solid deposit which had been deposited on the tube inner walls and comprises molybdenum oxide and/or molybdenum oxide hydrate is brushed away with the aid of a brush.