Dewaxing process

Details Dewaxing process Dewaxing process

1991-09-27

1993-01-19

Morris, Theodore

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208 31, 208 33, 208 38, C10G 7302, C10G 7306

Patent

active

051804832

ABSTRACT:
This invention relates to a process of dewaxing a hydrocarbon oil involving the steps of separating and precipitating the wax component of the hydrocarbon oil. This process is facilitated by incorporating into the oil a linear polymer of carbon monoxide with one or more olefins comprising .alpha.-olefins with at least 10 carbon atoms per molecule (C.sub.10+ .alpha.-olefins) wherein in this polymer monomer units of carbon monoxide and olefins are present in a substantially alternating arrangement. Optionally, the process may also involve the use of a polymer of one or more olefinically unsaturated compound comprising of alkyl acrylates or alkyl methacrylates with at least 8 carbon atoms in the alkyl group (C.sub.8+ alkyl esters). The process may be practiced using the single-stage or multi-stage dilution method.

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patent: 4191631 (1980-03-01), Grisham
patent: 4192733 (1980-03-01), Onodera et al.
patent: 4451353 (1984-05-01), Briens et al.
patent: 4728414 (1988-03-01), West et al.

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