| 摘要 |
PURPOSE:To provide an inexpensive supporting method of active metal on a catalyst carrier while suppressing the deterioration of the strength of the catalyst carrier at the time of the supporting of active metal by adding an org. solvent wherein the condition of a solubility parameter is specified to a support soln. and specifying the surface tension of the support soln. before impregnating the catalyst carrier. CONSTITUTION:A support soln. containing one or more kind of active metal selected from Mo, Ni and Co is infiltrated into an alumina carrier of which the primary particle has an aspect ratio of 30 or less. At this time, an org. solvent wherein the sum of the hydrogen bonding term and polar term of a solubility parameter is 40% or more of the sum of the intermolecular term, polar term and hydrogen bonding term of the solubility parameter is added to the support soln. The surface tension of the support soln. is set to 40dyn/cm or less before the alumina carrier is impregnated. By this constitution, the deterioration of the strength of the catalyst carrier can be suppressed when the catalyst carrier is impregnated with the support soln. to support active metal on the catalyst carrier and active metal is inexpensively supported with the catalyst carrier. |
