(19) |
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(11) |
EP 0 620 264 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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08.02.1995 Bulletin 1995/06 |
(43) |
Date of publication A2: |
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19.10.1994 Bulletin 1994/42 |
(22) |
Date of filing: 30.03.1994 |
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(84) |
Designated Contracting States: |
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BE DE ES FR GB IT NL |
(30) |
Priority: |
14.04.1993 GB 9307652
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(71) |
Applicant: BP Chemicals Limited |
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London EC2M 7BA (GB) |
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(72) |
Inventors: |
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- Kneale, Brian,
BP Chemicals Limited
Sunbury-on-Thames,
Middlesex TW16 7LN (GB)
- Sharp, Christopher,BP Chemicals Limited
Sunbury-on-Thames,
Middlesex TW16 7LN (GB)
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(74) |
Representative: Krishnan, Suryanarayana Kalyana et al |
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BP INTERNATIONAL LIMITED
Patents & Agreements Division
Chertsey Road Sunbury-on-Thames
Middlesex TW16 7LN Sunbury-on-Thames
Middlesex TW16 7LN (GB) |
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(57) This invention relates to a process for producing lubricating oils from waste or
virgin polymers, especially olefin polymers such as polyethylene. The polymer is first
thermally cracked in a fluidised bed and under inert conditions to form a waxy product
and the latter, optionally after a hydrotreatment step, is catalytically isomerized
and fractionated to recover the lubricating oil. This oil can be used in automotive
applications or can be subjected to further hydrofinishing.