Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Activating treatment
Reexamination Certificate
2006-06-13
2006-06-13
Sample, David (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Activating treatment
C502S060000, C502S077000, C502S085000, C423S700000, C540S536000
Reexamination Certificate
active
07060645
ABSTRACT:
The present invention provides a method for manufacturing a zeolite comprising following steps of:(1): calcining crystals obtained by hydrothermal synthesis reaction of a silicon compound;(2): contact treating a calcined product obtained by the step (1) with an aqueous solution including an amine and/or a quaternary ammonium compound;(3): calcining a treated product obtained by the step (2); and(4): contact treating the calcined product obtained by the step (3) with an aqueous solution including ammonia and/or an ammonium salt.According to the present invention, a method is also provided wherein ε-caprolactam is manufactured by Beckmann rearrangement reaction of cyclohexanone oxime in a gaseous phase in the presence of the zeolite manufactured by the above-described method.
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Hoshino Masahiro
Kitamura Masaru
Sugita Keisuke
Sample David
Sumitomo Chemical Company Limited
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