EP 0708174 B1 20011212 - 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
Application
Priority
FR 9412448 A 19941017
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
IPC 8 full level
C10M 175/00 (2006.01); C10M 175/02 (2006.01)
CPC (source: EP KR US)
C10G 67/00 (2013.01 - KR); C10M 175/0033 (2013.01 - EP US); C10M 175/005 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES GB GR IT NL SE
DOCDB simple family (publication)
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; KR 960014307 A 19960522; NO 313296 B1 20020909; NO 954097 D0 19951013; NO 954097 L 19960418; PL 177602 B1 19991231; PL 310964 A1 19960429; SA 95160353 B1 20060604; SA 95260105 B1 20060604; US 5759385 A 19980602; US 5843384 A 19981201
DOCDB simple family (application)
EP 95402302 A 19951016; CA 2160652 A 19951016; CN 95119191 A 19951017; DE 69524533 T 19951016; EG 85795 A 19951015; ES 95402302 T 19951016; FR 9412448 A 19941017; JP 26828395 A 19951017; KR 19950035733 A 19951017; NO 954097 A 19951013; PL 31096495 A 19951016; SA 95160353 A 19951031; SA 95260105 A 19951031; US 54398895 A 19951017; US 77869297 A 19970103