MECHANISM OF DEHYDRATION OF TERT-BUTYL ALCOHOL IN PHOSPHORIC ACID SOLUTIONS.

被引：0
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作者：
Obraztsov, P.A. [1 ]
Vinnik, M.I. [1 ]
机构：
[1] Acad of Sciences of the USSR, Moscow, USSR, Acad of Sciences of the USSR, Moscow, USSR
来源：
Kinetics and Catalysis | 1986年 / 27卷 / 5 pt 2期
关键词：
CATALYSIS - Reaction Kinetics - CATALYSTS - PHOSPHORIC ACID - Solutions;
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摘要：
The kinetic regularities of dehydration of tert-butyl alcohol on deposited phosphoric acid catalyst were studied by the pulsed gas-chromatographic method. Dehydration rate constants at 70 degree C were determined in the range of H//3PO//4 concentrations of 50-80. 4 wt. %. A dehydration mechanism was proposed from the dependence of this constant on the acidity of the medium. This includes the formation of a reactive complex consisting of a molecule of an unprotonated alcohol, a molecule of undissociated H//3PO//4 and a molecule of water.
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页码：1094 / 1097
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