Loading patent…
AssigneeNippon Kayaku Kabushiki Kaisha
InventorsAtsushi Sudo, Tatsuhiko Kurakami, Toshitake Kojima, Shigeo Hayashimoto, Yasushi Kobayashi
Estimating the term…
It is an object of the present invention to provide a catalyst having excellent performance and high mechanical strength for use in the production of methacrylic acid. A method for manufacturing a catalyst comprising essential active components of molybdenum, phosphorus, vanadium, cesium, ammonia, copper, and antimony for use in the production of methacrylic acid, comprising drying a slurry prepared by mixing a compound(s) containing the essential active components with water and then calcining the resulting dry powder and molding the calcined powder.
A method for manufacturing a catalyst comprising essential active components of molybdenum, phosphorus, vanadium, cesium, ammonia, copper, and antimony for use in the production of methacrylic acid, comprising drying a slurry prepared by mixing a compound(s) containing the essential active components other than antimony with water to form a dry powder, calcining the resulting dry powder, and molding a mixture of the calcined powder and a compound containing antimony, wherein the molding of the mixture of the calcined powder and a compound containing antimony comprises coating an inert carrier with the mixture using a binder to form a coated catalyst.
Dependencies are inferred from the claim text.