Reactivity of 3- and 4-methylphenols in alkylation by methanol on a vanadium catalyst

Journal Article · Tue Oct 01 04:00:00 EDT 1985 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00948036· OSTI ID:6005190

Korenskii, V I; Kharlampovich, G D; Kolenko, I P; Skobeleva, V D; Vinograova, V N

2,3,6- and 2,4,6-Trimethylphenols (TMPs) are intermediate products in the synthesis of trimethylhydroquinone, which is used in the production of Vitamin E. The mentioned TMP's can be obtained by vapor-phase alkylation of 3-methyl and 4-methylphenols (MPs) by methanol on different catalysts. One of the shortcomings of existing selective catalysts (Mg and Mn oxides) is the need to carry out the reaction at elevated temperatures. Vanadium catalysts make it possible to lower the temperature with high selectivity of o-methylation. In this work the authors studied alkylation and 3and 4-MPs by methanol in the presence of a V aluminophosphate compound, to determine the ratio of their reactivities.

• Research Organization: Institute of Chemistry, Ural Scientific Center, Sverdlovsk
• OSTI ID: 6005190
• Journal Information: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 34:4; ISSN BACCA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ACTIVATION ENERGY
ALCOHOLS
ALKYLATION
ALUMINIUM COMPOUNDS
ALUMINIUM PHOSPHATES
AROMATICS
BY-PRODUCTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ELEMENTS
ENERGY
HYDROXY COMPOUNDS
KINETICS
MATERIALS TESTING
METALS
METHANOL
METHYLATION
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PHENOLS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PRODUCTION
QUINONES
REACTION INTERMEDIATES
REACTION KINETICS
SYNTHESIS
TEMPERATURE DEPENDENCE
TESTING
TRANSITION ELEMENTS
VANADIUM
VITAMIN E
VITAMINS