期刊
PETROLEUM CHEMISTRY
卷 51, 期 1, 页码 61-69出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0965544111010117
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资金
- Russian Academy of Sciences [19]
- Russian Federation [MD 793.2009.3]
The ketalization of polyols (glycerol, xylitol, xylose) in the presence of a number of heterogeneous acid catalysts has been studied. It has been shown that zeolite catalysts exhibit high activity in the formation of the acetone ketal of glucose in a flow system with the quantitative selectivity for the 1,2-product. The best catalyst is zeolite beta; in the presence of this zeolite and excess acetone, the yield is over 90% or, in the case of the structured reactor, even greater than 98% It has been shown that zeolite-based systems catalyze the formation of ketals of xylitol and xylose with a yield of up to 50% in the presence of excess acetone.
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