| 摘要 |
PROBLEM TO BE SOLVED: To obtain the superior mechanical strength and corrosion resistance of carboxylate by containing aluminum, magnesium and silicon respectively in the given range and using a silica-alumina-magnesia as a carrier in a palladium containing carrier catalyst used for preparing carboxylate. SOLUTION: In a palldium containing carrier catalyst used for preparing carboxylate by reacting aldehyde with alcohol under the presence of oxygen, a silica-alumina-magnesia containing aluminum of 5-40wt.% as Al2 O3 , magnesium of 3-30wt.% as MgO and silicon of 50-92wt.% as SiO2 is used as a carrier. At that time, it is preferable to use acrolein or methacrolein as aldehyde and methanol as alcohol. The specific surface area for the carrier is preferably 10-700m<2> /g, and also it is preferable that burning is carried out, for example, at 200-800 deg.C in the adjustment stage. |
