▎ 摘　　要

NOVELTY - Core-shell structure allyl acetate catalyst comprises carrier inner core, and active component coating and co-active component coating which are sequentially coated on outer surface of carrier. The carrier is e.g. at least one of titanium nitride, carbon nitride, vanadium carbide, and titanium carbide, preferably vanadium carbide; active component coating comprises active metal, ligand and matrix, and active metal is at least one of metals palladium, platinum, gold, copper, or zinc, preferably palladium, gold, or copper; ligand is at least one of 2,3,6,7,10,11-hexahydroxytriphenylene, hexasubstituted benzene and hexasubstituted benzobenzene; co-activation component coating comprises co-activation metal salt and substrate, and co-activation metal salt is at least one of alkali metal acetates, preferably sodium acetate and/or potassium acetate; substrate is at least one of silica sol, graphene, or silicon powder, preferably graphene, or silica sol. USE - The core-shell structure allyl acetate catalyst is useful for preparing allyl acetate (claimed). ADVANTAGE - The catalyst has characteristics of high dispersion of active components, low activation temperature, high space-time yield, excellent thermal conductivity, high product selectivity, excellent stability and long catalyst life. DETAILED DESCRIPTION - Core-shell structure allyl acetate catalyst comprises carrier inner core, and active component coating and co-active component coating which are sequentially coated on outer surface of carrier. The carrier is at least one of titanium nitride, carbon nitride, vanadium carbide, and titanium carbide, preferably vanadium carbide; active component coating comprises active metal, ligand and matrix, and active metal is at least one of metals palladium, platinum, gold, copper, or zinc, preferably palladium, gold, or copper; ligand is at least one of 2,3,6,7,10,11-hexahydroxytriphenylene, hexasubstituted benzene and hexasubstituted benzobenzene; matrix is at least one of silica sol, graphene, and silicon powder, preferably graphene and silica sol; co-activation component coating comprises co-activation metal salt and substrate, and co-activation metal salt is at least one of alkali metal acetates, preferably sodium acetate and/or potassium acetate; substrate is at least one of silica sol, graphene, or silicon powder, preferably graphene, or silica sol. INDEPENDENT CLAIMS are also included for: Preparing core-shell structure allyl acetate catalyst comprising (i) mixing the metal salt solution containing the active component with the ligand, carrying out the coordination reaction, then adding the matrix and mixing to obtain the coating solution 1, and adhering coating solution 1 to the surface of the carrier by thermal spraying to obtain the precursor A, (ii) adding the precursor A into the aqueous solution of the precipitating agent to carry out the precipitation reaction, then adding the reducing agent to carry out the reduction reaction, washing and drying to obtain precursor B, (iii) mixing the metal salt solution containing the co-active component with the matrix to obtain the coating solution 2, depositing coating solution 2 on the surface of precursor B by vacuum filtration, and drying; and Preparing allyl acetate, comprising mixing propylene, oxygen, acetic acid, and water in fixed bed reactor and presence of the core-shell structure allyl acetate catalyst to obtain allyl acetate, where molar ratio of propylene to oxygen, acetic acid and water is 1:0.1-1:0.1-1:0.1-1, temperature is 120-180 ℃, preferably 140-170 ℃, pressure is 0.6-0.9 MPaG, preferably 0.7-0.8 MPaG, reaction volume space velocity is 1500-2500 h, preferably 1800-2000 h.-1-1