EP 0926226 A1 19990630 - Synthetic oil filtration with a silico-calcareous product
Title (en)
Synthetic oil filtration with a silico-calcareous product
Title (de)
Filtration von synthetischen Ölen mit einem Kalkkieselsäureprodukt
Title (fr)
Filtration d'huiles synthétiques par produit silico-calcaire
Publication
Application
Priority
EP 97870202 A 19971222
Abstract (en)
Cleaning used synthetic oils comprises the use of a silico-calcareous material to remove fatty material. The mineralogical silico-calcareous product is of the formula CaCO3, SiO2, Al2(Si4O10)(OH)2.nH2O, mica in the proportions 50%, 35%, 12% and 3% respectively. This is milled to a particle size of 50 mu m and added at a concentration of 10-50 g/l. The degree of attenuation of fatty material is 95%. Before use the product is thermally treated at 220 degrees C to remove interstitial water.
Abstract (fr)
L'épuration des matières grasses dans l'huile de synthèse se fait par adjonction à l'huile de produit silico-calcaire composé de CaCO3, SiO2, AL2 (SI4 O10) (OH) 2. nH2 O, MICA, broyé à 50µm à raison de 10 à 50 g/l. Le taux d'épuration des graisses est d'environ 95%.
IPC 1-7
IPC 8 full level
C10M 175/00 (2006.01)
CPC (source: EP)
C10M 175/0075 (2013.01)
Citation (search report)
- [A] FR 2453211 A1 19801031 - RHONE POULENC IND
- [A] US 4756825 A 19880712 - BACHMANN PAUL [DE], et al
- [A] DE 4142829 A1 19930624 - RWE ENTSORGUNG AG [DE]
- [A] DE 2856248 A1 19800717 - ANLAGEN UND FILTERBAU GMBH & C
- [A] EP 0307716 A1 19890322 - TAKANO CORP [JP]
- [A] FR 2157166 A5 19730601 - CARBON CHARBONS ACTIFS
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 97870202 A 19971222