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. 31, 2007
Filed:
Mar. 30, 2004
Masayuki Shirai, Miyagi, JP;
Chandrashekhar Vasant Rode, Pune, IN;
Uday Dattopant Joshi, Nanded, IN;
Kazuo Torii, Miyagi, JP;
Takafumi Sato, Miyagi, JP;
Masayuki Shirai, Miyagi, JP;
Chandrashekhar Vasant Rode, Pune, IN;
Uday Dattopant Joshi, Nanded, IN;
Kazuo Torii, Miyagi, JP;
Takafumi Sato, Miyagi, JP;
Abstract
The present invention provides a novel method of hydrogenating a phenol for hydrogenating a phenol industrially advantageously. The present invention relates, in the case of phenol hydrogenation in which carbon dioxide is made to participate in the reaction, to a method of hydrogenating a phenol characterized by using a supported rhodium and/or ruthenium catalyst, whereby the phenol is hydrogenated efficiently at a lower reaction temperature than with prior art; such a method characterized in that carbon dioxide having a temperature of 20 to 250° C. and a pressure of 0.1 to 50 MPa is used as the carbon dioxide; and such a method characterized in that hydrogen under conditions of a temperature of 20 to 250° C. and a pressure of 0.1 to 50 MPa is used. An environmentally friendly phenol hydrogenation process that uses no harmful organic solvents can be realized.