Mechanism of dehydration of tert-butyl alcohol in phosphoric acid solutions

Journal Article · Tue Mar 31 23:00:00 EST 1987 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:5736178

Obraztsov, P A; Vinnik, M I

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/sup 0/C were determined in the range of H/sub 3/PO/sub 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/sub 3/PO/sub 4/ and a molecule of water.

• Research Organization: Institute of Chemical Physics, Moscow, USSR
• OSTI ID: 5736178
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 27:5; ISSN KICAA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
AQUEOUS SOLUTIONS
BUTANOLS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHROMATOGRAPHY
DEHYDRATION
DISPERSIONS
EQUATIONS
GAS CHROMATOGRAPHY
HOMOGENEOUS CATALYSIS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
KINETIC EQUATIONS
KINETICS
MATHEMATICAL MODELS
MIXTURES
ORGANIC COMPOUNDS
PH VALUE
PHOSPHORIC ACID
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
REACTION KINETICS
SEPARATION PROCESSES
SOLUTIONS
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE