Abstract
The dehydration of 2,3-dimethyl-2,3-butanediol (pinacol) on LaHY, CaHY and HZSM-5 zeolites has been investigated in the temperature range 393–438 K in solvent-free liquid phase. The formation of pinacolone (3,3-dimethyl-2-butanone) and of 2,3-dimethyl-1,3-butadiene was observed. The higher activity of Y faujasites was followed by considerable deactivation, while that of HZSM-5 remained constant.
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