CORE-SHELL SOLID CATALYST AND PROCESS FOR PREPARING 1,3-BUTADIENE USING THE CATALYST

摘要

PURPOSE: Solid catalyst in a core-shell structure and a Method for fabricating 1,3-butadiene are provided to improve the yield of the 1,3-butadiene from C4 raffinate-III based on the high catalytic activity of the solid catalyst. CONSTITUTION: The composition of the core part in solid catalyst is (100-z)% of D_dE_eFe_fNi_gMo_mO_y and z% of SiO_2. The composition of the shell part in the solid catalyst is Bi_nA_aO_x. The solid catalyst is represented by chemical formula 1. In the chemical formula 1, A represents one or more elements selected from boron, potassium, phosphorus, and molybdenum. D represents one or more trivalent elements. E represents one or more divalent elements. If m is 1, n is set between 0.001 and 1 according to A. a is between 0.001 and 3. d is between 0.01 and 3. e is between 0.01 and 3. f is between 0.01 and 5. g is between 0.1 and 5. z is between 1 and 90. x and y is set in order to equalize the valences of the core part and the shell part.