Process for preparing oligomers.

摘要

Oligomers of linear olefin monomers having 10 to 24 carbon atoms suitable as synthetic lubricant base stocks may be prepared by contacting the monomer with an acidic calcium montmorillonite clay having a moisture content of up to 20 wt.%, a residual acidity of 3 to 30 mg KOH/g, and a surface area of 300 m<2>/g or greater, at a temperature greater than 200 DEG C, and preferably in the presence of a tertiary hydrocarbon such as methylcyclopentane.