Title:
Composition of hyperactive Large crystal ZSM-5
Document Type and Number:
Japanese Patent JP5990594
Kind Code:
B2
Abstract:
In a process for preparing a high activity, large crystal ZSM-5 type zeolite in the absence of a template, a reaction mixture can be prepared comprising water, a silica source having a surface area less than 150 m2/g, an alumina source, seeds, a source of an oxide of an alkali metal, M, and a source of gluconic acid or salt thereof, Q, wherein the mixture has a SiO2/Al2O3 molar ratio≰40. The reaction mixture can be heated to a crystallization temperature from about 100° C. to 200° C. for a time sufficient for crystals of ZSM-5 to form Crystals of ZSM-5 can then be recovered from the reaction mixture which crystals can have a SiO2/Al2O3 molar ratio≰40 and a majority of which crystals can have at least one crystalline dimension of at least about 2 μm.
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Inventors:
When Lee Frank Rye
Marci A. Hamilton
Marci A. Hamilton
Application Number:
JP2014544807A
Publication Date:
September 14, 2016
Filing Date:
November 27, 2012
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
C01B39/38; B01J29/40; C07C6/12; C07C15/08
Domestic Patent References:
| JP11507321A | ||||
| JP2011523393A | ||||
| JP2006512268A | ||||
| JP59064520A | ||||
| JP53039999A | ||||
| JP3193622A | ||||
| JP2097416A | ||||
| JP59013621A |
Attorney, Agent or Firm:
Samejima Mutsumi
Keiichi
Yoshida Tamaki
Fukumasa Mitsuru
Keiichi
Yoshida Tamaki
Fukumasa Mitsuru