CATALYST FOR DEHYDRATING GLYCERIN AND METHOD FOR PRODUCING ACROLEIN

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PROBLEM TO BE SOLVED : To provide a catalyst which is used for dehydrating glycerin to produce acrolein and deterioration of the acrolein yield of which with time can be suppressed and to provide a method for producing acrolein. SOLUTION : The catalyst for dehydrating glycerin is obtained by essentially carrying the crystallized salt containing phosphorus and at least one element selected from aluminum, zirconium and boron and/or at least one element selected from rare earth elements on an amorphous porous carrier which contains ≥90 mass% silica and has micropores having 0.1-30 μm pore size and nanopores having 1-50 nm pore size. COPYRIGHT : (C)2011, JPO&INPIT