Petroleo Brasileiro S.a. - Petrobras

Noemi Tatizawa

Jaime Correia Da Silva

Odyr Do Coutto Filho

Katia Simone Zanco Palma

Leandro Dos Santos Silveira

Danielle De Carvalho Pinto Freitas

Richard Faraco Amorim

The present invention relates to a process for obtaining a catalyst of high activity based on a mixture of supports, more specifically, the mixture of supports being AlOplus MgCl, intended for the production of polyolefins. The catalyst of the present invention involves the use of a spherical support based on special alumina that serves as a porous matrix, which is impregnated, by precipitation, with magnesium chloride by dissolving the latter in ethers and/or alcohols.

Catalyst and process for obtaining catalyst of high activity

A process is described for the production of synthetic basestocks from an alpha-olefin feedstock with carbon number in the range C.sub.7 -C.sub.30 the feedstock having origin in an ethylene polymerization process, the process comprising contacting the feedstock with a solid or soluble cationic AlCl.sub.3 catalyst. After separation and distilling out of the light fraction of the oligomer, a basestock of excellent viscometric, rheological and thermal stability properties is obtained. The basestocks so obtained are also described.

Synthetic basestocks and process for producing same

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Rio de Janeiro, Brazil

Noemi Tatizawa