アクロレインの合成に関する研究 : 炭酸リチウムーシリカゲル触媒によるアセトアルデヒドまたはパラアルデヒドとホルムアルデヒドの気相接触反応

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Vapor phase condensation by dehydration of paraldehyde and formaldehyde (molar ratio 1: 3) through Li3CO3-silica gel catalyst for formation of acrolein has been investigated with reaction temperature range of 300-450°c and space velocity (SV) (of formaldehyde) at 3-24 mM/hr./g, catalyst. The result indicated that the maximum yield (to the feed passed) of 52-53% was obtainable with SV=6 mM/hr./g, catalyst and reaction temperature at 350°c. The side reaction product showed a considerable decrease with an increase of SV, there was practically no formation in 2.5 hrs, after the reaction at 12 mM/hr./g, catalyst (reaction temperature range at 360-400°c), and the yield under this condition was 44.6%.
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