| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive and efficient method for producing high-silica aluminosilicate having a CHA structure. <P>SOLUTION: In a method for producing aluminosilicate having a CHA structure and in which a molar ratio of SiO<SB>2</SB>to Al<SB>2</SB>O<SB>3</SB>is ≥5 by hydrothermal synthesis of a mixture containing a cation derived from 1-adamantane amine, an Si-element source, an alkali metal source, an Al-element source and water, the hydrothermal synthesis is carried out under conditions that the molar ratio of the cation derived from the 1-adamantane amine to Si-element is 0.001-0.05 and the molar ratio of alkali metal to Si-element is ≥0.3 in the reaction mixture. <P>COPYRIGHT: (C)2011,JPO&INPIT |
