EP 0572630 B1 19980902 - METHOD OF REGENERATING USED LUBRICANTS
Title (en)
METHOD OF REGENERATING USED LUBRICANTS
Title (de)
VERFAHREN ZUR REINIGUNG VON GEBRAUCHTEN SCHMIERÖLEN
Title (fr)
PROCEDE DE REGENERATION D'HUILES LUBRIFIANTES USEES
Publication
Application
Priority
- DE 9201074 W 19921221
- DE 4142829 A 19911223
Abstract (en)
[origin: WO9313189A1] The invention concerns a method of regenerating used lubricants by vacuum distillation and subsequently treating the distillate twice with finely divided, non-activated Fuller's earth at 260 to 350 C.
IPC 1-7
IPC 8 full level
B01D 3/00 (2006.01); C10M 175/00 (2006.01); C10M 175/02 (2006.01)
IPC 8 main group level
C10M (2006.01)
CPC (source: EP)
C10M 175/0008 (2013.01); C10M 175/0033 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI NL PT SE
DOCDB simple family (publication)
WO 9313189 A1 19930708; AT E170548 T1 19980915; BR 9205666 A 19940517; CA 2104578 A1 19930624; DE 4142829 A1 19930624; DE 4142829 C2 19940825; DE 59209484 D1 19981008; EP 0572630 A1 19931208; EP 0572630 B1 19980902; JP H06510562 A 19941124; NO 932937 D0 19930818; NO 932937 L 19930818
DOCDB simple family (application)
DE 9201074 W 19921221; AT 93901602 T 19921221; BR 9205666 A 19921221; CA 2104578 A 19921221; DE 4142829 A 19911223; DE 59209484 T 19921221; EP 93901602 A 19921221; JP 51134993 A 19921221; NO 932937 A 19930818