Catalytic hydrogenation of glucose to produce sorbitol

Details Catalytic hydrogenation of glucose to produce sorbitol Catalytic hydrogenation of glucose to produce sorbitol

C - Chemistry, Metallurgy

07

C

260/632.7

C07C 31/26 (2006.01)

Patent

CA 1173860

ABSTRACT Monosaccharides such as glucose solution are catalytically hydrogenated in fixed bed reaction process using a high activity nickel catalyst to produce at least about 98 W % conversion to sorbitol solution. The feedstream pH is controlled to between 7 and 13 by adding a basic solution such as sodium hydroxide. Reaction zone conditions are 500-2000 psig hydrogen partial pressure, 130-180°C temperature, and use a ratio of hydrogen gas/feed liquid within the range of 1000-5000. Feedstream liquid space velocity is within range of 0.5-3.5 Vf/Hr/Vc.

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