| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst for addition reaction of alkylene oxide by which an alkylene oxide addition product with specific carbonyl value(COV) is obtained and of which catalyst activity is excellent, a method to produce the catalyst and a method to produce the alkylene oxide addition product by using the catalyst. SOLUTION: A catalyst is expressed by a general formula (I), wherein M is at least one bivalent metal of Mg, Zn, Ca, Ba, Fe, Co, Mn, Ni, Sr, Pd, Cd, Sn, Pt, Pb and Be; Q is at least one trivalent metal of Al, Sb, Fe, Co, and Cr; m is zero or more; 0<y<1, and is prepared in such a way that a catalyst precursor is baked which as been obtained by mixing a solution containing an ion expressed by M2+ and an ion expressed by Q3+ with alkali agent in 45 deg.C or lower. The carbonyl value(COV) of an alkylene oxide addition product is 5 μm mol/g or less. |
