发明名称 |
METHOD FOR PRODUCING DDR ZEOLITE |
摘要 |
Disclosed is a method for producing a DDR zeolite, which can be carried out using materials that are less harmful to the environment. The method for producing a DDR zeolite has a short hydrothermal synthesis time and does not require continuous agitation of the raw material solution. Specifically disclosed is a method for producing a DDR zeolite, which comprises: a raw material solution preparation step in which a raw material solution that contains 1-adamantaneamine, silica (SiO 2 ) and water at a molar ratio 1-adamantaneamine/SiO 2 of 0.002-0.5 and a molar ratio water/SiO 2 of 10-500 but does not contain ethylenediamine is prepared; and a crystal growth step in which hydrothermal synthesis is carried out while having the raw material solution and a DDR zeolite powder in contact with each other, so that crystals of DDR zeolite are grown using the DDR zeolite powder as a seed crystal. |
申请公布号 |
EP2489636(A4) |
申请公布日期 |
2015.08.05 |
申请号 |
EP20100823284 |
申请日期 |
2010.09.28 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
UCHIKAWA, TETSUYA;NIINO, MAKIKO |
分类号 |
C01B39/48;B01D53/14;B01D53/22;B01D61/36;B01D67/00;B01D69/10;B01D71/02;C01B37/02;C01B39/06 |
主分类号 |
C01B39/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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