EP 0600055 B1 19970730 - WASTE LUBRICATING OIL PRETREATMENT PROCESS
Title (en)
WASTE LUBRICATING OIL PRETREATMENT PROCESS
Title (de)
Verfahren zur Vorbehandlung von Altschmieröl
Title (fr)
PROCESSUS DE PRETRAITEMENT POUR HUILE DE GRAISSAGE USEE
Publication
Application
Priority
- CA 2068905 A 19920519
- CA 9300193 W 19930505
Abstract (en)
[origin: WO9323506A1] A method of reducing the acidity and fouling tendencies of distillates, when waste lubricating oil is distilled, which comprises treating the oil in a state when the oil has some water content, with one or more alkali metal salts of an acid that is weaker than sulphonic, or with a hydroxide of an alkali metal salt.
IPC 1-7
IPC 8 full level
C10M 175/00 (2006.01); C10M 175/02 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP)
C10M 175/0016 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9323506 A1 19931125; AT E156184 T1 19970815; CA 2068905 A1 19931120; CA 2068905 C 19970722; DE 600055 T1 19950824; DE 69312649 D1 19970904; DE 69312649 T2 19971127; DK 0600055 T3 19970825; EP 0600055 A1 19940608; EP 0600055 B1 19970730; ES 2107029 T3 19971116; GR 3024596 T3 19971231; JP 2928639 B2 19990803; JP H06509604 A 19941027
DOCDB simple family (application)
CA 9300193 W 19930505; AT 93911712 T 19930505; CA 2068905 A 19920519; DE 69312649 T 19930505; DE 93911712 T 19930505; DK 93911712 T 19930505; EP 93911712 A 19930505; ES 93911712 T 19930505; GR 970402240 T 19970902; JP 51972693 A 19930505