作者: Kenji Yajima , Tetsuya Uchikawa
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摘要: There is provided a process for producing DDR-type zeolite having: raw material solution preparation step of preparing containing 1-adamantaneamine hydrochloride, silica (SiO2), and water at hydrochloride/SiO2 molar ratio 0.002 to 0.5 water/SiO2 10 500, crystal growth subjecting the powder heat treatment in state that both are brought into contact with each other grow crystals by use as seed crystals.