发明名称 |
ZEOLITE PRODUCTION METHOD |
摘要 |
Provided is a method for continuous production of zeolite in which a starting material is continuously supplied to a tubular reactor to produce an aluminophosphate zeolite that contains, in the framework structure, at least aluminum atoms and phosphorus atoms or an aluminosilicate zeolite having 5‰¤SiO 2 /Al 2 O 3 ‰¤2000. The tubular reactor is heated using a heat medium; a ratio (volume)/(lateral surface area) of the volume (inner capacity) to the lateral surface area of the tubular reactor is 0.75 cm or smaller; and seed crystals are added to the starting material. Through using a small-diameter tubular reactor and heating with a heat medium, it becomes possible to heat sufficiently the entirety of a starting material (zeolite precursor gel) in a short time, and to allow reaction to proceed at a high rate. The occurrence of irregular pressure fluctuations during continuous production of the zeolite can be prevented by adding seed crystals. |
申请公布号 |
EP3020688(A1) |
申请公布日期 |
2016.05.18 |
申请号 |
EP20140823636 |
申请日期 |
2014.07.09 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION;THE UNIVERSITY OF TOKYO |
发明人 |
OKUBO, TATSUYA;WAKIHARA, TORU;LIU, ZHENDONG;TAKEWAKI, TAKAHIKO;OSHIMA, KAZUNORI;NISHIOKA, DAISUKE |
分类号 |
C01B39/54;B01J8/08;C01B39/04;C01B39/46 |
主分类号 |
C01B39/54 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|