초록 ▼

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

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 C6-C14 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.

대표청구항 ▼

A process for the production of mono-alkylbenzenes containing C12-C28 alkyl group from alpha-olefin dimer, comprising, contacting a C6-C14 alpha olefin with a supported solid reduced metal oxide catalyst under oligomerization conditions at a temperature of about 90°to 250°C., said metal oxide compri

A process for the production of mono-alkylbenzenes containing C12-C28 alkyl group from alpha-olefin dimer, comprising, contacting a C6-C14 alpha olefin with a supported solid reduced metal oxide catalyst under oligomerization conditions at a temperature of about 90°to 250°C., said metal oxide comprising a lower valence form of at least one Group VIB metal to produce lubricant range hydrocarbon product oligomers having a branch ratio of about 0.10 to 0.19 and a viscosity index of at least about 130 and a C12-C28 olefin dimer; separating the oligomers and recovering the dimer, reacting benzene or substituted benzene with the dimer, or mixture of said dimers, in contact with acidic shape selective metallosilicate catalyst under alkylating conditions whereby said mono-alkylbenzenes are produced.