Process for producing lower alkylene glycol, catalyst...

Details Process for producing lower alkylene glycol, catalyst... Process for producing lower alkylene glycol, catalyst...

B - Operations, Transporting

01

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260/635.5

B01J 23/72 (2006.01) B01J 37/03 (2006.01) C07C 29/136 (2006.01) C07C 29/147 (2006.01) C07C 31/20 (2006.01)

Patent

CA 1206135

Title of the Invention: PROCESS FOR PRODUCING LOWER ALKYLENE GLYCOL, CATALYST COMPOSITION USED THEREFOR, AND PROCESS FOR PRODUCTION THEREOF Abstract of the Disclosure: A hydrogenation catalyst composition for use in the hydrogenation of a lower alkyl ester of a lower hydroxycarboxylic acid. The composition is composed of a reduction product of copper-containing silica gel formed by contacting an ammine complex of copper with dry silica gel having an average particle diameter of not more than 200 microns or colloidal silica sol. A process for producing the catalyst composition is also provided. By using the aforesaid catalyst composition, a lower alkylene glycol can be produced efficiently in high conversions and selectivities without causing pollution attributed to the use of a chromium-containing catalyst composition.

427557

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