Method for producing catalyst for producing acrolein and acrylic acid, and method for producing acrolein and acrylic acid using said catalyst

Provided is a method for producing a catalyst having excellent catalytic activity and yield, which is used in a method for producing acrolein and acrylic acid by catalytic gas phase oxidation of propylene. A method for producing a catalyst for producing acrolein and acrylic acid by catalytic gas phase oxidation of propylene, the method comprising a step for mixing a starting material mixture containing a starting material compound of molybdenum, a starting material compound of bismuth, and a starting material compound of cobalt, the cobalt starting material compound is cobalt nitrate hexahydrate, and the mass loss ratio L1 of the cobalt nitrate hexahydrate from 25 DEG C to 105 DEG C in thermogravimetric analysis is 11-16 mass%. 本发明提供在对丙烯进行催化气相氧化而制造丙烯醛和丙烯酸的方法中使用的、催化活性和收率优异的催化剂的制造方法。所述催化剂的制造方法是用于对丙烯进行催化气相氧化来制造丙烯醛和丙烯酸的催化剂的制造方法，其包括将包含钼的原料化合物、铋的原料化合物和钴的原料化合物的原料混合物进行混合的工序，上述钴的原料化合物为硝酸钴六水合物，上述硝酸钴六水合物在热重量分析中的从25℃到105℃的质量减量率L1为11～16质量％。