| Patents for C10M 175 - Working-up used lubricants to recover useful products (2,783) |
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| 05/26/1981 | US4269698 Purification of waste oils by adding an aqueous solution of an alkali metal silicate; heating; stirring until agglomeration; settling; layers |
| 05/26/1981 | US4269695 Reclaiming wax contaminated lubricating oils |
| 05/13/1981 | EP0028409A1 De-ashing lubricating oils |
| 05/05/1981 | US4265734 Method for regeneration of used lubricant oils |
| 05/05/1981 | US4265733 Using ammonium salts as purifying agents |
| 04/28/1981 | US4264436 Treating with a soluble triazole compound |
| 04/28/1981 | CA1100078A1 Process for preparing lubricating oil from used waste lubricating oil |
| 03/17/1981 | US4256578 Waste oil recovery process |
| 03/10/1981 | US4255252 Treatment with sodium metal |
| 03/03/1981 | US4253819 System for the combustion of liquid fuel, notably of the mineral-oil type |
| 02/24/1981 | US4252637 Treatment with sodium and potassium hydroxides |
| 02/10/1981 | US4250021 Treating used hydrocarbon lubricating oils |
| 01/27/1981 | US4247389 Treatment with ammonium salt treating agent |
| 01/27/1981 | CA1094495A1 Process for cleaning rolling lubricant |
| 01/07/1981 | EP0021811A1 Method of and apparatus for treating liquid stored in a machine tool system settling tank |
| 12/16/1980 | CA1091607A1 Method for reclaiming waste lubricating oils |
| 11/11/1980 | US4233140 Recycling and solvent extraction |
| 10/21/1980 | US4229297 Method of separating oil from oil-containing liquid |
| 10/15/1980 | EP0016806A1 Oil reconditioning filter. |
| 10/14/1980 | US4227972 Process for recovering phosphate ester type hydraulic fluids from industrial waste liquids |
| 10/07/1980 | CA1087107A1 Ultrafiltration or reverse osmosis treatment of emulsified oil metal working coolants |
| 09/23/1980 | US4224142 Treatment of recycled ammonium sulfate-bisulfate solution |
| 08/12/1980 | US4217221 Oil refining apparatus |
| 06/10/1980 | CA1079215A1 Thermal treatment of used petroleum oils |
| 05/27/1980 | US4204946 Process for removing metal contaminants from used lubricating oils |
| 05/06/1980 | US4201664 Ultrafiltration or reverse osmosis treatment of emulsified oil metal working coolants |
| 04/29/1980 | CA1076507A1 Rerefining of used motor oils |
| 04/16/1980 | EP0009935A1 Process for removing metals and water from used hydrocarbon lubricating oil |
| 04/02/1980 | EP0009467A2 Magnetic filter |
| 02/21/1980 | WO1980000222A1 Oil reconditioning system |
| 02/19/1980 | US4189351 Oil reclamation device |
| 02/06/1980 | EP0007475A1 Method of operating a plant for the combustion of waste motor oil |
| 02/05/1980 | CA1071132A1 Process for the reclamation of waste hydrocarbon oils |
| 01/23/1980 | EP0006925A1 Method and apparatus for cleaning cutting fluid. |
| 12/18/1979 | US4179019 Apparatus for reclaiming used lubricating oils |
| 12/11/1979 | US4178202 Method and apparatus for facilitating the disposal of cutting liquid |
| 12/04/1979 | CA1067439A1 Process and apparatus for re-refining used petroleum products |
| 09/25/1979 | US4169044 Re-refining used lube oil |
| 09/18/1979 | CA1062622A1 Method for regenerating lubricating oil |
| 05/15/1979 | US4154670 For reuse |
| 05/08/1979 | CA1054068A1 Used lubricating oil regeneration through semi-permeable membrane |
| 04/24/1979 | US4151072 Reclaiming used lubricating oils |
| 04/19/1979 | WO1979000192A1 Method and arrangement for cleaning cutting fluid |
| 04/17/1979 | CA1052706A1 Lubricating oil regeneration through preheating prior to filtration by means of a semi-permeable membrane |
| 03/13/1979 | US4144166 Compositions, apparatus and methods useful for releasing solid lubricating oil additive |
| 03/13/1979 | US4143806 Centrifugal separator |
| 02/20/1979 | US4140212 Cyclonic distillation tower for waste oil rerefining process |
| 11/21/1978 | CA1042815A1 Method and apparatus for cleaning hydraulic and transmission oil |
| 11/07/1978 | US4124492 Process for the reclamation of waste hydrocarbon oils |
| 10/31/1978 | US4123345 Gravitational separation |
| 08/29/1978 | CA1037402A1 Process for reclaiming used crankcase oil |
| 08/22/1978 | US4108134 Modulator valve |
| 08/08/1978 | US4105542 Mixing with diluent, heating with water-alcohol mixture |
| 08/08/1978 | US4105538 Process for the refining of used motor oils and products thereof |
| 07/18/1978 | US4101433 Tris/hydroxymethyl/nitromethane, nitromorpholine compound, microbiocide |
| 07/18/1978 | US4101414 Rerefining of used motor oils |
| 06/27/1978 | US4097369 Coagulation, adsorption, filtration, vacuum distillation, dehalogenation, desulfurization, contacting with alkali metal and/or hydrides |
| 02/14/1978 | US4073720 Method for reclaiming waste lubricating oils |
| 02/14/1978 | US4073719 Process for preparing lubricating oil from used waste lubricating oil |
| 01/31/1978 | US4071438 Method of reclaiming waste oil by distillation and extraction |
| 01/03/1978 | US4066559 Additive permeable |
| 12/06/1977 | US4061572 Oil filter |
| 08/30/1977 | US4045330 Process for regenerating lubricating oils |
| 07/26/1977 | US4038176 Oil soluble polymeric flocculants |
| 07/05/1977 | US4033886 Cutting and grinding coolant |
| 07/05/1977 | US4033859 Thermal treatment of used petroleum oils |
| 06/28/1977 | US4032441 Settling, aerating, foam inhibiting, additives, fine particle filtering |
| 06/14/1977 | US4029569 Process for reclaiming spent motor oil |
| 06/07/1977 | US4028226 Dilution, purification, reuse |
| 06/07/1977 | US4027685 Method for processing used emulsion coolant |
| 05/03/1977 | US4021333 Method of rerefining oil by distillation and extraction |
| 03/29/1977 | US4014794 Oil filter adapter |
| 11/09/1976 | US3990963 Process for regenerating used lubricating oils |
| 10/12/1976 | US3985642 Treating with a surfactant and a polyalkylene-amine |
| 09/14/1976 | US3980551 Refining of waste lube oil to prepare usable lubestock |
| 08/10/1976 | US3974072 Filtration method |
| 07/20/1976 | US3970536 Liquid treating method and apparatus |
| 07/13/1976 | US3969196 Process for the separation of mixtures of substances |
| 05/11/1976 | US3956071 Electrical heating apparatus for removing vaporizable impurities from lubricating oil |
| 05/04/1976 | US3954611 Portable apparatus and method for purifying lubricating oil in various devices |
| 05/04/1976 | US3954602 Process for cleaning used oils |
| 04/06/1976 | US3948784 Treatment of industrial grinding and cutting lubricants |
| 01/06/1976 | US3930988 Reclaiming used motor oil |