DEHYDROGENATION CATALYST AND PRODUCTION OF FORMALDEHYDE USING THE SAME DEHYDROGENATION CATALYST

Title:

DEHYDROGENATION CATALYST AND PRODUCTION OF FORMALDEHYDE USING THE SAME DEHYDROGENATION CATALYST

Document Type and Number:

Japanese Patent JPH0240237

Kind Code:

A

Abstract:

PURPOSE: To enhance activity of dehydrogenation reaction of methanol of a catalyst by forming the catalyst by fixing alkali metal ions and/or alkaline earth metal ions to a high silica zeolite substituted by boron.

CONSTITUTION: A high silica zeolite substituted by B is suspended in an aq. soln. contg. alkali metal ions and/or alkaline earth metal ions, and the metal ions are fixed by refluxing said suspension for several hours-several days at 90-120°C. Thus, a dehydrogenation catalyst is obtd. Suitable high silica zeolite substituted by B is one having 5-1000 atomic ratio of Si/B. Formaldehyde is produced by carrying out a dehydrogenation reaction of methanol in the gaseous phase in the presence of the obtd. dehydrogenation catalyst. Suitable reaction temp. therefor is usually 400-850°C, pref. 500-750°C.

Inventors:

MATSUMURA YASUYUKI

Application Number:

JP18914788A

Publication Date:

February 09, 1990

Filing Date:

July 27, 1988

Export Citation:

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Assignee:

OSAKA CITY

International Classes:

B01J29/04; B01J29/86; C01B35/10; C07B61/00; C07C45/00; C07C47/052; C07C67/00; (IPC1-7): B01J29/04; C01B35/10; C07B61/00; C07C47/052

Attorney, Agent or Firm:

Eiji Saegusa (2 others)

Next Patent: PRODUCTION OF ZEOLITIC CATALYST