Patents by Inventor Angelo Celli

Angelo Celli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Process for obtaining phthalic anhydride, starting from ortho-xylene, naphtalene and their mixtures, by oxidation in the presence of a specific catalyst and the catalyst obtained by carrying out said process

Patent number: 4472587

Abstract: The present invention concerns a process for obtaining phthalic anhydride by oxidizing ortho-xylene, naphthalene, or mixtures of the two, in the presence of a specific catalyst with a vanadium pentoxide and titanium dioxide base, and also regards the catalyst obtained by enactment of said process.

Type: Grant

Filed: May 18, 1982

Date of Patent: September 18, 1984

Assignee: Carbochimica Italiana S.p.A.

Inventors: Francesco Benedetti, Ezio Polacco, Angelo Celli

Process for obtaining phthalic anhydride, starting from ortho-xylene, naphtalene and their mixtures, by oxidation in the presence of a specific catalyst and the catalyst obtained by carrying out said process