Mww type zeolite substance, precursory substance thereof and their production method

摘要: PROBLEM TO BE SOLVED: To provide a method of easily synthesizing zeolite containing elements having large ionic radius which introduction is hard by common synthesis methods in skeleton at high ratio. SOLUTION: The producing substance an MWW type structure comprises the step 1 wherein mixture template compound, compound group 13 Periodic Table, silicon-containing and water heated to obtain precursor; 2 precursor obtained stage subjected acid treatment; 3 acid-treated together with once more; 4 fired crystalline substance. COPYRIGHT: (C)2004,JPO