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:
Nov. 05, 2013
Filed:
May. 25, 2012
Saeed Mohammed Al-zahrani, Riyadh, SA;
Horacio Falcon Richeni, Madrid, ES;
Ainara Aguadero Garin, Madrid, ES;
Jose Antonio Alonso Alonso, Madrid, ES;
Jose Miguel Campos Martin, Madrid, ES;
Jose Luis Garcia Fierro, Madrid, ES;
Saeed Mohammed Al-Zahrani, Riyadh, SA;
Horacio Falcon Richeni, Madrid, ES;
Ainara Aguadero Garin, Madrid, ES;
Jose Antonio Alonso Alonso, Madrid, ES;
Jose Miguel Campos Martin, Madrid, ES;
Jose Luis Garcia Fierro, Madrid, ES;
King Saud University, Riyadh, SA;
Abstract
The present invention relates to a method for preparing carboxylic acids comprising the step of contacting an aromatic hydrocarbon comprising at least one group including an α C-atom that is oxidizable to a carboxylic group in liquid phase with an oxygen containing gas in the presence of a heterogeneous catalyst with perovskite structure ABOwith A being selected from at least one element of groups 1 to 3 of the Periodic Table, lanthanides or actinides, and B being selected from at least one element of the groups 4 to 15 of the periodic table or an oxygen-defective derivative of that catalyst having the formula ABOwith 0<δ<1.