Global Patent Index - EP 0708174 B1

EP 0708174 B1 2001-12-12 - Method and installation for purifying used oils

Title (en)

Method and installation for purifying used oils

Title (de)

Verfahren und Anlage zur Reinigung von Altölen

Title (fr)

Procédé et installation pour la purification des huiles usagées

Publication

EP 0708174 B1 (FR)

Application

EP 95402302 A

Priority

FR 9412448 A

Abstract (en)

[origin: EP0708174A1] Purification of used oils comprises stages of de-hydration, vacuum distillation, solvent extraction and hydro-treatment. Direct vacuum distillation of the de-hydrated used oil produces a residue and at least one distillate fraction, the residue from the vacuum distillation is submitted to solvent extraction to give a clarified oil and an extraction residue, the clarified oil and oil distillate fraction(s) are stabilised by hydro-treatment. Also claimed is an installation for effecting the treatment.

IPC 1-7 (main, further and additional classification)

C10M 175/00

IPC 8 full level (invention and additional information)

C10M 175/02 (2006.01); C10M 175/00 (2006.01)

CPC (invention and additional information)

C10M 175/0033 (2013.01); C10M 175/005 (2013.01)

Designated contracting state (EPC)

DE ES GB GR IT NL SE

EPO simple patent family

EP 0708174 A1 19960424; EP 0708174 B1 20011212; CA 2160652 A1 19960418; CA 2160652 C 20071009; CN 1100854 C 20030205; CN 1128789 A 19960814; DE 69524533 D1 20020124; DE 69524533 T2 20020529; EG 20615 A 19990930; ES 2169748 T3 20020716; FR 2725725 A1 19960419; FR 2725725 B1 19961213; JP 4051488 B2 20080227; JP H08199185 A 19960806; KR 100372802 B1 20030426; NO 313296 B1 20020909; NO 954097 A 19960418; NO 954097 D0 19951013; PL 177602 B1 19991231; PL 310964 A1 19960429; SA 872 B1 20060604; SA 873 B1 20060604; US 5759385 A 19980602; US 5843384 A 19981201

INPADOC legal status


2016-04-29 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2015-11-04 [REG GB PE20] PATENT EXPIRED AFTER TERMINATION OF 20 YEARS

- Expiry date: 20151015

2015-10-21 [REG NL MK] PATENT EXPIRED BECAUSE OF REACHING THE MAXIMUM LIFETIME OF A PATENT

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2015-10-16 [REG DE R071] EXPIRY OF RIGHT

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2011-06-01 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: IFP ENERGIES NOUVELLES, FR

- Free text: FORMER OWNER: INSTITUT FRANCAIS DU PETROLE, RUEIL-MALMAISON, HAUTS-DE-SEINE, FR

- Document: DE 69524533

- Effective date: 20110331

2002-12-04 [26N] NO OPPOSITION FILED

2002-10-09 [REG GR EP] EP PATENT VALIDATED IN GREECE

- Document: GR 20010401013

2002-07-16 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2169748 T3

2002-03-20 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20020222

2002-01-24 [REF] CORRESPONDS TO:

- Document: DE 69524533 20020124

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE ES GB GR IT NL SE

2001-05-31 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: DE DOMINICIS & MAYER S.R.L.

2000-01-19 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19991206

1996-12-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19961024

1996-04-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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