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:
Apr. 30, 2002
Filed:
Dec. 22, 2000
Soon-Haeng Cho, Daejeon-Si, KR;
Tae-Hwan Kim, Daejeon-Si, KR;
Kweon-Ill Kim, Daejeon-Si, KR;
Sung-Chul Cho, Daejeon-Si, KR;
Jong-Kee Park, Daejeon-Si, KR;
Heon-Do Jeong, Daejeon-Si, KR;
Hari Chand Bajaj, Daejeon-Si, KR;
Korea Institute of Energy Research, Daejeon-Si, KR;
Abstract
Disclosed is a process for effecting liquid-phase hydrogenation of MAN to GBL in high conversion and high selectivity. The present invention provides an improved process of catalytic hydrogenation for converting MAN or SA to GBL in the liquid phase in the presence of a noble metal (palladium-molybdenum-nickel) catalyst supported on silica having a large surface area. The catalytic hydrogenation is conducted at a temperature of 150 to 250° C. and under a pressure of 50 to 150 kg/cm .