Patent ID: 8378152
Filing Date: 2013-02-19
Classification: B01J,C07C

Abstract:
1. A method of producing propylene glycol, the method comprising: obtaining propylene glycol by performing catalytic hydrogenation of glycerol in the presence of a catalyst, the catalyst comprising a first component containing at least one of copper and copper oxide and a second component containing zinc oxide, and the catalyst, after being reduced at 180° C. to 230° C. in the presence of hydrogen, showing a half width of from 0.4 to 1.1 of a peak having a peak top at a position at which a diffraction angle (2θ±0.2°) is 43.1° in an X-ray diffraction pattern obtained using CuKα as a radiation source, wherein the catalyst has been subjected to a calcination treatment at a calcination temperature of from 400° C. to 500° C. for a calcination time of from 2.5 hours to 6 hours.