Abstract: A catalyst composition for the hydrodesulfurization of a hydrocarbon oil, comprising a composite of metal oxides comprising:aluminum; andat least one metal selected from a group consisting of(A) at least one metal belonging to Group VIB of the Periodic Table; and(B) at least one the metal belonging to Group VIII of the Periodic Table;where the at least one metal belonging to Group VIB of the Periodic Table accounts for, in terms of as oxide, from 10 to 60% by weight with respect to the total catalyst, and the at least one metal belonging to Group VIII of the Periodic Table accounts for, in terms of oxide, from 3 to 20% by weight with respect to the total catalyst; and a process for producing a catalyst composition for the hydrodesulfurization of a hydrocarbon oil comprising a composite of a metal oxide containing aluminum, at least one metal belonging to Group VIB of the Periodic Table, and at least one metal belonging to Group VIII of the Periodic Table, which comprises:drying and thereafter calcining an eff

Abstract: A process is described for producing a catalyst composition for hydrodesulfurization of hydrocarbon oil, which comprises:drying and calcining a carrier comprising alumina or an alumina-containing material impregnated with a solution mixture of(A) at least one of an alkoxide, a chelate compound, or a glykoxide of molybdenum or chromium;(B) at least one of an alkoxide, a chelate compound, or a glykoxide of cobalt or nickel; andan organic solvent capable of dissolving (A) and (B). Also described is a process for hydrodesulfurizing hydrocarbon oil using the same catalyst composition.

Abstract: An internal sizing agent for paper making which produces excellent sizing effect and which can be used in neutral to alkaline regions without the ordinarily employed fixing agent such as aluminum sulfate. The sizing agent contains a specific reaction product and/or hydrogenation product of said reaction product, said reaction product being prepared by adding maleic anhydride to branched internal olefins having 14 to 36 carbon atoms which branched internal olefins are obtained by oligomerizing one member or a mixture of two or more of olefins having 6 to 18 carbon atoms.

Abstract: A self-emulsifying sizing composition comprising at least one substituted succinic anhydride, and at least one member selected from the group consisting of an acetylated polyoxyethylene sorbitan fatty acid ester and a polyoxyethylene compound as a dispersing agent. The composition can simultaneously satisfy the dispersibility in water, the storage stability and the sizing effect, and is suitable for use in neutral paper making.