Patent ID: 8071835

Claim:
A process to produce liquid polyalpha-olefins comprising: (a) contacting at least one C 8 to C 30 alpha-olefin monomer with at least one activated homogeneous or colloidal polymerization catalyst wherein said catalyst is a metallocene catalyst comprising a transition metal selected from the group consisting of Ti, Zr, Hf, and Cr in a polymerization reactor to produce a product comprising at least one liquid polyalpha-olefin and residual catalyst; (b) adding a quench reagent to the product in an amount of 250 ppm or less, based on the total weight of the reactor content, to the solution product, (c) contacting said product comprising said liquid polyalpha-olefin with a solid sorbent slurry whereby, due to chemical and physical active sites on the solid sorbent, said solid sorbent absorbs at least a portion of said residual catalyst to produce a solid sorbent with residual catalyst; (d) separating said solid sorbent with residual catalyst from said at least one liquid polyalpha-olefin; and (e) recovering said at least one liquid polyalpha-olefin.