| Patents for C10M 175 - Working-up used lubricants to recover useful products (2,783) |
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| 08/04/1994 | WO1994017165A1 Improved liquid decontamination apparatus and method |
| 08/04/1994 | DE4307348C1 Oil- and water- emulsion sepn. process |
| 07/26/1994 | US5332510 Oleic acid dimers and aluminum fines |
| 07/20/1994 | CN1089640A A process for converting waste motor oil to diesel fuel |
| 07/07/1994 | WO1994014731A1 Destruction of halide containing organics and solvent purification |
| 06/29/1994 | EP0603400A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 06/15/1994 | EP0601159A1 Process for ultrafiltration of stabilized emulsions. |
| 06/09/1994 | DE4240860A1 Appts. for physical-chemical treatment of used emulsions - esp. water-oil mixts. with cooling lubricants |
| 06/08/1994 | EP0600055A1 Waste lubricating oil pretreatment process. |
| 05/31/1994 | US5316743 Diesel fuel cracking unit |
| 05/26/1994 | WO1994011471A1 A process for converting waste motor oil to diesel fuel |
| 05/25/1994 | EP0598307A1 Treatment of coolant- and/or lubricant-emulsions |
| 05/24/1994 | US5314613 Process and apparatus for oil decontamination |
| 05/19/1994 | DE4238280A1 Deoiling of metal sludges, esp mill scale - by extraction with water contg nonionic surfactant |
| 05/18/1994 | EP0597803A1 Method for cleaning rolling oils |
| 05/11/1994 | EP0596348A1 Apparatus for separating leakage oil from lubricating and cooling emulsions |
| 05/11/1994 | CA2109495A1 Process for cleaning rolling oils |
| 05/05/1994 | DE4336324A1 Circulating belt-type oil separator - has a partially immersed belt, an associated mechanical scraper and entrained vane wheels for removing leakage oil from surface of coolant-lubricant emulsion |
| 05/04/1994 | EP0595217A1 Process for working up hydraulic fluids containing glycols as base materials |
| 05/04/1994 | CN1086252A Process to re-refine used oils |
| 05/03/1994 | US5308503 Purification of industrial lubricating agents |
| 04/28/1994 | DE4235932A1 Metal and plastics recovery from hydrocarbon-contg. scrap - esp. filters, oil cans, etc. by comminution, sepn. and washing steps |
| 04/27/1994 | EP0593586A1 Filter system and method for rejuvenating used lubricating oils |
| 04/27/1994 | CN1085820A Device for filtering contaminated fluids |
| 04/26/1994 | US5306419 Reducing the zinc dithophosphate concentration by thermo decomposition |
| 04/26/1994 | CA1328826C Means for dewatering lubricating oils |
| 04/26/1994 | CA1328824C Removal of carcinogenic hydrocarbons from used lubricating oil |
| 04/21/1994 | DE4235214A1 Processing contaminated pre-cleaned oil in plasma reactor - with pre-cleaning by extn. with mixt. of polar solvent and non-polar solvent, sepg. heavy phase, and removing volatiles by distn.. |
| 04/21/1994 | DE4235213A1 Cleaning contaminated oil by extn. with mixt. of polar solvent and non-polar solvent - sepg. heavy phase, removing volatiles from extract by distn. and cracking prod. in plasma reactor |
| 04/21/1994 | DE4234582A1 Splitting emulsion by treatment with carbonate or bi-carbonate and carbon di:oxide - esp. for used coolant lubricants from metal working or wash water from degreasing |
| 04/14/1994 | WO1994007798A1 Process to re-refine used oils |
| 04/14/1994 | WO1994007587A1 Device for filtering polluted liquids, in particular used oil |
| 04/14/1994 | CA2145421A1 Device for filtering polluted liquids, in particular used oil |
| 04/07/1994 | DE4233302A1 Vorrichtung zum Filtern von Öl, wie Altöl Apparatus for filtering of oil, such as waste oil |
| 03/31/1994 | WO1994006534A1 Oil filter and method of increasing service life of oil filter |
| 03/30/1994 | EP0588854A1 Apparatus and method for reclaiming waste oil. |
| 03/30/1994 | EP0588851A1 Apparatus and method for reclaiming useful oil products from waste oil |
| 03/30/1994 | CN1084553A Refining process of used all-purpose axle oil |
| 03/17/1994 | DE4230798A1 Treatment appts. for machining coolant - includes multistage filter and UV irradiation unit |
| 03/17/1994 | DE4230780A1 Treatment of aq. waste, esp. machine tool coolant/lubricant - by distilling waste and using vapour to degrease machine tool swarf before returning to evaporator. |
| 03/17/1994 | DE4230765A1 Recycling used oily emulsions, esp machine tool lubricants - by filtering emulsion, treating with flotation agent, electrolysing and removing floating oil and particles |
| 03/17/1994 | DE4230256A1 Equipment for making use and disposal of sump oil - functions in diesel engine plants and involves heat input with air exclusion to convert oil to vapour and gaseous state |
| 03/16/1994 | EP0587552A1 Additive for mineral oils and mineral oil products, especially electrically insulating oils |
| 03/16/1994 | CN1024019C Non-acid regenerated technology for fluid oil |
| 03/09/1994 | EP0585260A1 Process and device for processing free-flowing organic waste materials containing noxious substances. |
| 03/03/1994 | DE4228960A1 Recycling of used oil - by ultraviolet and/or infrared radiation treatment |
| 03/03/1994 | DE4228096A1 Sepn. of emulsified oil from bath waste water - uses activator and additive to float emulsified oil mixt. for removal and disposal with recycling of cleaned water. |
| 02/22/1994 | US5288413 Filtering under vacuum or low applied inert gas pressure using filter aid, drying at low temperature to remove moisture |
| 02/15/1994 | US5286380 Apparatus for contaminated oil reclamation |
| 02/15/1994 | US5286349 Apparatus for reclaiming useful oil products from waste oil |
| 02/02/1994 | EP0581402A2 Method and device for reclaiming used oil |
| 01/20/1994 | WO1994001519A1 Process for removing metals from waste oil |
| 01/13/1994 | DE4320814A1 Gravity sepn. of oil from liq. mixt. - esp. oil-contaminated machining coolant |
| 01/12/1994 | EP0578039A1 Method for the treatment of oil-in-water emulsions |
| 01/11/1994 | US5277832 Recovery of reactive soap lubricants |
| 01/11/1994 | US5277827 Oil water separator system |
| 01/06/1994 | WO1994000540A1 Process for operating a centrifugal separator and attachment therefor |
| 01/05/1994 | EP0577007A2 Vehicle door |
| 01/05/1994 | EP0576497A1 Method for refining of waste lubricating oils and an apparatus for employing the method |
| 01/05/1994 | DE4221446A1 Verfahren zum Betreiben eines Zentrifugalseparators und Zusatzeinrichtung für einen solchen A method of operating a centrifugal separator and associated equipment for such a |
| 12/23/1993 | WO1993025635A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 12/23/1993 | WO1993025298A1 Process for ultrafiltration of stabilized emulsions |
| 12/23/1993 | DE4220401A1 Water circulation management for installations for workpiece etc. treatment in baths - including an evaporation unit for production of rinsing water |
| 12/23/1993 | CA2114840A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 12/21/1993 | US5271842 Contaminant removal system and process |
| 12/21/1993 | US5271808 Apparatus from waste oil for reclaiming a useful oil product |
| 12/15/1993 | EP0574272A2 Improved process for the production of base stock oils from used oil |
| 12/15/1993 | CN1079497A Method for removal of halogenated aromatic compound from hydrocarbon oil |
| 12/14/1993 | US5269906 Process for the recovery of oil from waste oil sludges |
| 12/08/1993 | EP0572630A1 Method of regenerating used lubricants |
| 11/25/1993 | WO1993023507A1 Apparatus for removing acidic impurities from lubricating oil |
| 11/25/1993 | WO1993023506A1 Waste lubricating oil pretreatment process |
| 11/18/1993 | EP0569385A1 Process for cleaving emulsions or the like |
| 11/16/1993 | CA1324334C Neutralizing oxidation product components in continuous rerefining of used oil stocks |
| 11/11/1993 | WO1993022025A1 Extraction of water from oil |
| 11/06/1993 | CA2095564A1 Method for recycling used or contaminated lubricating oils |
| 11/02/1993 | US5258539 Ester interchange by contact with alkoxide salt |
| 11/02/1993 | CA1323842C Simultaneous removal of aromatics and wax from lube distillate by an adsorption process |
| 10/27/1993 | EP0566663A1 A process of recycling used lubricant oil |
| 10/14/1993 | WO1993019812A1 Treatment of liquids |
| 10/14/1993 | CA2133551A1 Treatment of liquids |
| 10/06/1993 | EP0563754A1 Purification device |
| 10/06/1993 | EP0563646A1 Cross-flow filtration device with submerged circulation pump |
| 10/05/1993 | US5250180 Oil recovering apparatus from used lubricant |
| 09/29/1993 | EP0562321A1 Oil separator with integrated micro-filtration device |
| 09/22/1993 | EP0560980A1 Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
| 09/22/1993 | CN1076475A Re-generation method of lubricating oil for loaded large-scale unit |
| 09/16/1993 | WO1993018122A1 Method of removing hydroperoxides from lubricating oils using sodium hydroxide |
| 09/14/1993 | US5244586 Machine coolant recycling system |
| 09/08/1993 | CN1075980A Comprehensive utilization of white soil oil dregs from refining transformer oil and turbine oil |
| 09/08/1993 | CN1075938A Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
| 09/07/1993 | US5242605 Method and apparatus for removing water from lubricants, coolants and the like |
| 09/07/1993 | US5242034 Oil reclamation device |
| 09/02/1993 | DE4205884A1 Sepg. dewatered used oil into mineral oils and solids - by heating, removing gases, removing heated oil, cooling and sepg. into two phases |
| 09/01/1993 | EP0557286A1 Process for recovery of oil from waste oil sludges |
| 08/25/1993 | CN1075434A Metalworking fluid management system |
| 07/22/1993 | DE4201424A1 Continuous cleaning by vacuum of transformer or other oil - without excessive heating of oil when removing gas particles |
| 07/15/1993 | DE4200270A1 Reconditioning used oil with min. use of energy - where distillate is continuously drawn off into separate condensn. chamber and hot flue gases are circulated to heat whole distn. chamber |
| 07/14/1993 | EP0550991A1 Metalworking fluid management system |
| 07/08/1993 | WO1993013190A1 Method for removing pollutants from used oil |