Invention Grant
- Patent Title: Method for producing MTW-type zeolite
- Patent Title (中): 生产MTW型沸石的方法
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Application No.: US13509677Application Date: 2010-11-19
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Publication No.: US09333495B2Publication Date: 2016-05-10
- Inventor: Keiji Itabashi , Tatsuya Okubo , Kenta Iyoki
- Applicant: Keiji Itabashi , Tatsuya Okubo , Kenta Iyoki
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: UniZeo Co., Ltd.,The University of Tokyo
- Current Assignee: UniZeo Co., Ltd.,The University of Tokyo
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Locke Lord LLP
- Agent James E. Armstrong, IV; Nicholas J. DiCeglie, Jr.
- Priority: JP2009-264550 20091120
- International Application: PCT/JP2010/070663 WO 20101119
- International Announcement: WO2011/062256 WO 20110526
- Main IPC: C01B39/42
- IPC: C01B39/42 ; B01J29/70 ; B01J20/30
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Abstract:
A method for producing an MTW-type zeolite, comprising (1) mixing an alumina source, an alkali source, a lithium source, and water so as to obtain a reaction mixture (2) Adding a seed crystal of an MTW-type zeolite before or while a silica source is added to the reaction mixture in a proportion of 0.1 to 20% by weight relative to the silica component in the reaction mixture. Mixing and stirring the reaction mixture. Wherein the MTW-type zeolite of the seed crystal has a SiO2/Al2O3 ratio of 10 to 500 and does not contain an organic compound. The reaction mixture has a composition represented by the following molar ratios: SiO2/Al2O3=12 to 200, Na2O/SiO2=0.1 to 0.3, Li2O/(Na2O+Li2O)=0.05 to 0.5 and H2O/SiO2=10 to 50. (3) Air tightly heating the reaction mixture, to which the seed crystal of the MTW type zeolite has been added, at 100 to 200° C.
Public/Granted literature
- US20130156689A1 METHOD FOR PRODUCING MTW-TYPE ZEOLITE Public/Granted day:2013-06-20
Information query
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