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:
Jul. 03, 2007
Filed:
Oct. 15, 2003
Armando Pombeiro, Lisbon, PT;
Joäo Fraústo Da Silva, Lisbon, PT;
Yuzo Fujiwara, Fukuoka, JP;
Josë Silva, Lisbon, PT;
Patricia Reis, Lisbon, PT;
António F. Palavra, Lisbon, PT;
Armando Pombeiro, Lisbon, PT;
Joäo Fraústo Da Silva, Lisbon, PT;
Yuzo Fujiwara, Fukuoka, JP;
Josë Silva, Lisbon, PT;
Patricia Reis, Lisbon, PT;
António F. Palavra, Lisbon, PT;
Instituto Superior Tecnico, Lisbon, PT;
Abstract
The invention consists on the utilization of complexes of vanadium (in the +4 and +5 oxidation states) with bi- or poly-dentate ligands coordinated by nitrogen and oxygen (N,O) or by oxygen and oxygen (O,O) atoms, namely derivatives of aminoalcohols, (hydroxyimino)dicarboxylic acids, hydroxypyranones, trifluoroacetic acid, triflic acid or inorganic acid, as catalysts for the direct single-pot conversion, under mild conditions, of methane in acetic acid, either in the absence or in the presence of carbon monoxide, and in the presence of a peroxodisulfate salt (K2S2O8), in trifluoroacetic acid (CF3COOH), according to the general reaction (I).