Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Patent
1989-04-03
1991-02-05
Garvin, Patrick P.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
585467, C07C 264, C07C 1510
Patent
active
049907182
ABSTRACT:
A process is disclosed for the production of novel monoalkylbenzenes or substituted benzenes by aromatics alkylation wherein the alkylation catalyst is an acidic shape selective metallosilicate catalyst and the alkylating agent is the olefins dimer by-product of the oligomerization of alpha-olefins in contact with reduced valence state solid chromium oxide catalyst on a porous support. The alkylated benzenes produced comprise those mono-alkylbenzenes wherein the alkyl group contains 12 to 28 carbon atoms and have high viscosity index, low pour point and low viscosity. They have a low degree of residual olefinic unsaturation and are useful as additives to thermally and oxidatively stabilize lubricant materials. The process comprises reacting benzene or substituted benzene with C.sub.6 -C.sub.14 alpha-olefin olefinic dimer having a branch ratio of less than 0.19, or mixture of said dimers, in contact with acidic shape selective zeolite catalyst having large pore size.
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Garvin Patrick P.
Irzinski E. D.
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
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