| Patents for C10M 175 - Working-up used lubricants to recover useful products (2,783) |
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| 03/11/1992 | WO1992004424A1 Process for the recovery of oil from waste oil sludges |
| 03/11/1992 | CA2092926A1 Process for the recovery of oil from waste oil sludges |
| 03/04/1992 | EP0372016B1 Method in the processing of aluminium and the use of certain acids in oils therefor |
| 02/25/1992 | CA1296281C Method of and apparatus for treating waste oil |
| 02/05/1992 | EP0469701A2 Process for the simultaneous treatment of two hazardous feedstocks |
| 01/29/1992 | EP0468087A1 Process for working up used hydraulic fluids containing ethers of glycol as base material and borates of glycol ethers |
| 01/23/1992 | WO1992001033A1 Process for demetalizing oils |
| 12/27/1991 | EP0462856A2 Oil-water separation apparatus |
| 12/18/1991 | CN1057070A Reclaim of used engine oil |
| 12/03/1991 | US5069799 Series of chemically active, physically active and inactive fi lters |
| 11/27/1991 | EP0458015A1 Process for the treatment of coolant-lubricant emulsions contaminated with extraneous oils |
| 11/26/1991 | US5068044 Method for reducing piston deposits |
| 11/20/1991 | CN2089006U Waste oil regenerator for high viscous mineral-oil |
| 11/19/1991 | WO1991017804A1 Enhanced vacuum cyclone |
| 11/12/1991 | US5064523 Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge |
| 10/23/1991 | EP0452409A1 Process for reprocessing waste oil |
| 10/20/1991 | CA2014992A1 Degradationn of polychlorinated biphenyls |
| 10/17/1991 | DE4011611A1 Demulsifier compsns. contg. opt. substd. vinyl- sulphonic acid - for breaking oil-in-water or water-in-oil emulsions |
| 10/16/1991 | EP0451160A1 Purification of industrial lubricating agents. |
| 10/15/1991 | US5057658 Apparatus for oil filtration and recirculation |
| 10/15/1991 | US5057207 Process for reducing halogen impurities in oil products |
| 10/01/1991 | CA1289893C Purification of oils containing solid matters in suspension |
| 09/24/1991 | CA1289479C Vacuum pump equipped with filter for the lubricating oil |
| 09/17/1991 | US5049258 Cracking, distillation, hydrorefining |
| 09/12/1991 | DE4007304A1 Porous sheet structure - used as cleaner around centrifugal cooling lubricant to aid removal of heavier collected solids |
| 09/10/1991 | CA1288724C Process for exhaustively decontaminating perfluoropolyethereal oils |
| 09/05/1991 | WO1991012926A1 System for preparing cooling lubricants |
| 09/03/1991 | US5045179 Production of secondary raffinates for lubricants, treatment of hazardous waste |
| 08/29/1991 | DE4005627A1 Aufbereitungssystem fuer kuehlschmierstoffe Treatment system for kuehlschmierstoffe |
| 08/27/1991 | US5042617 Method of reducing the presence of sludge in lubricating oils |
| 07/16/1991 | US5032303 Method in the processing of aluminum and the use of certain acids in oils therefor |
| 07/16/1991 | US5032259 Friction-reducing lubricating-oil filter for internal combustion engine |
| 07/16/1991 | CA1286087C Process for cleaning of waste materials by refining and/or elimination of biologically difficult to degrade halogen-, nitrogen- and/or sulfur compounds |
| 07/02/1991 | US5028313 Process for treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component to produce a distillable hydrocarbonaceous product |
| 05/30/1991 | WO1991007475A1 Improving storage stability of oils |
| 05/16/1991 | WO1991006805A1 Process and installation for processing waste oil |
| 05/07/1991 | US5013424 Process for the simultaneous hydrogenation of a first feedstock comprising hydrocarbonaceous compounds and having a non-distillable component and a second feedstock comprising halogenated organic compounds |
| 05/01/1991 | CN1051056A Improved process for oil decontamination |
| 04/25/1991 | DE3935260A1 Appts. for regeneration of engineering oil - has dispersion tower between inlet sub-assembly and degassing sub-assembly |
| 04/09/1991 | US5006274 Dithiocarbamate from carbon disulfide and bishexamethylenetriamine; waste water treatment |
| 03/26/1991 | WO1991004309A1 Improved process for oil decontamination |
| 03/20/1991 | CN1012076B Reclaiming waste oil with organic coalescer |
| 03/13/1991 | EP0416908A2 Filter system for rejuvenating lubricating oils |
| 03/13/1991 | EP0416907A2 Method of removing soot from lubricating oils |
| 03/13/1991 | EP0416906A2 Method of removing hydroperoxides from lubricating oils |
| 03/13/1991 | EP0416905A2 Method of removing sludge from lubricating oils |
| 03/13/1991 | CN1012020B Determination and controll of sulfate reduced bacteria |
| 03/12/1991 | US4999286 Sulfate reducing bacteria determination and control |
| 03/08/1991 | CA2024005A1 Method of removing soot from lubricating oils |
| 03/05/1991 | US4997546 Decomposition |
| 02/27/1991 | EP0413786A1 A process for obtaining a hydrocarbon compound from used oil |
| 02/15/1991 | WO1991002782A1 Process for preparing low pour middle distillates and lube oil using a catalyst containing a silicoaluminophosphate molecular sieve |
| 02/15/1991 | CA2035027A1 Process for preparing low pour middle distillates and lube oil using a catalyst containing a silicoaluminophosphate molecular sieve |
| 02/13/1991 | CN1049179A Waste oil regenerating technology and producing device |
| 02/05/1991 | US4990237 Demetallization by heating, condensing and centrifuging to separate water and oil products for reuse |
| 01/10/1991 | WO1991000329A1 Process for the treatment of used oil |
| 01/03/1991 | DE3920869A1 Verfahren zur aufbereitung von altoel Process for treating waste oil |
| 12/27/1990 | CA1278267C Oil refiner with atomizing nozzle |
| 12/18/1990 | US4977871 Removal of carcinogenic hydrocarbons from used lubricating oil using activated carbon |
| 11/29/1990 | DE3916732A1 Demetallisation and further treatment of used lubricating oils - from internal combustion engines etc., by continuous economical method in which heavy metals are reduced to within safety limits |
| 11/22/1990 | DE3916030A1 Breaking stabilised emulsion, esp. cutting fluid soldering - from metal working, by organic cationic polymer pre-treated with carbon di:oxide |
| 10/31/1990 | DE3913845A1 Recycling biologically degradable coolant lubricating oil - comprising aq. soln. of alcohol and deriv. of carboxylic acid, by cross-flow membrane filtration |
| 10/11/1990 | DE3910932A1 Reprocessing method for spent brake fluids and hydraulic fluids based on glycol ethers and boron esters |
| 09/25/1990 | US4959160 Process for the treatment of contaminated emulsion |
| 09/12/1990 | EP0387235A1 Process for the recuperation of spent motor vehicle oils, and device for carrying out same |
| 09/05/1990 | CN1045122A Method of cleaning and reclaiming used oils |
| 08/23/1990 | WO1990009426A1 A process for obtaining a hydrocarbon compound from used oil |
| 08/14/1990 | US4948493 Enclosure surrrounding the tank containing oil; heating, adding a coagulant, precipitating impurities |
| 08/08/1990 | EP0380782A1 Liquid dehalogenation agents |
| 08/02/1990 | CA2009007A1 Liquid dehalogenating agents |
| 07/24/1990 | US4943377 Method for removing dissolved heavy metals from waste oils, industrial wastewaters, or any polar solvent |
| 07/18/1990 | EP0377606A1 Process for purifying and regenerating used oils. |
| 07/18/1990 | CN1043954A Process for reducing halogen impurities in oil products |
| 07/17/1990 | US4941967 Purification, distillation, vacuum evaporation of lubeoils |
| 07/12/1990 | WO1990007566A1 Process for reprocessing waste oil |
| 07/04/1990 | CA2007062A1 Process for reducing halogen impurities in oil products |
| 06/21/1990 | DE3841844A1 Verfahren und vorrichtung zum kontinuierlichen zerlegen in ihre bestandteile fliessfaehiger organischer medien, insbesondere von halogenierten kohlenwasserstoffe enthaltenden abfallprodukten und zum weiteren aufbereiten u./o. Method and apparatus for continuously decomposed into their constituents fliessfaehiger organic media, in particular of halogenated hydrocarbons containing waste products and to further prepare u. / O. entsorgen Dispose |
| 06/13/1990 | EP0372276A1 Process for the recuperation of contaminated oils |
| 06/13/1990 | EP0372016A1 Method in the processing of aluminium and the use of certain acids in oils therefor. |
| 06/06/1990 | EP0371639A1 Method for reducing piston deposits in internal combustion engines |
| 05/31/1990 | WO1990005768A1 Purification of industrial lubricating agents |
| 05/30/1990 | EP0370397A1 Process for the treatment of oil-containing water |
| 05/29/1990 | US4929351 Portable ultra-filtration system |
| 05/22/1990 | US4927500 Waste oil purifying apparatus |
| 05/08/1990 | US4923590 Process for treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component to produce a hydrogenated distillable hydrocarbonaceous product |
| 04/25/1990 | CN1041612A Apparatus and method for reclaiming waste oil |
| 04/04/1990 | CN1041002A Fliod fluid decontamination system |
| 03/28/1990 | EP0360500A2 Apparatus and method for reclaiming waste oil |
| 03/21/1990 | EP0359359A1 Fluid decontamination system |
| 03/06/1990 | US4906389 Method for reducing piston deposits |
| 02/20/1990 | US4902432 Treating method of preventing putrefaction and emission of rancidity of water-contained cutting or grinding oil and treating bag member for use in the same |
| 01/17/1990 | EP0350761A2 Drum separator for cooling lubricants |
| 01/16/1990 | US4894140 Method of treating waste oil |
| 01/09/1990 | US4892667 Method and means for dewatering lubricating oils |
| 12/28/1989 | WO1989012482A1 Process and device for separating harmful substances |
| 12/21/1989 | DE3820317A1 Process for separating flowable organic media containing harmful or polluting constituents |
| 12/12/1989 | US4886599 Filter cartridge with series elements for chemical and mechanical filtration |
| 12/12/1989 | CA1263845A1 Method of removing substances from fossil derived, hydrocarbon liquids |
| 11/15/1989 | EP0341802A1 Removal of metal contaminants from oil |
| 11/09/1989 | DE3814146A1 Method and plant for spent oil reprocessing |