Patents for C10G 73 - Recovery or refining of mineral waxes, e.g. montan wax (1,976) |
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11/11/1980 | CA1089392A1 Dilchill dewaxing using wash filtrate solvent dilution |
10/21/1980 | US4229282 Nickel-tungsten zeolite |
10/01/1980 | EP0016530A1 Catalytic dewaxing of hydrocarbon oils with synthetic offretite |
08/19/1980 | US4218263 Process for preparing oxygen-containing waxes |
08/12/1980 | US4217203 Of hydrocarbon oil with solvent, multistage |
08/06/1980 | EP0013834A2 Method of converting a hydrophilic, water-containing regenerated cellulose membrane to a membrane useful for separating organic liquids |
08/05/1980 | US4216075 Continuous, ketone-autorefrigerant solvent for hydrocarbon oils |
07/09/1980 | EP0013150A1 Process for dewaxing waxy hydrocarbon oils using ketone dewaxing solvent and a polyvinylpyrrolidone dewaxing aid |
06/17/1980 | US4208184 Leather fatting agent |
06/11/1980 | EP0011926A1 Production of high V.I. lubricating oil stock |
06/03/1980 | US4206034 Felted-cloth filter |
05/20/1980 | US4203824 Polyvinylpyrrolidone dewaxing aid for bright stocks |
05/20/1980 | CA1077698A1 Dewaxing with a polyol ester aid |
04/22/1980 | US4199433 Solvent dewaxing of lubricating oils, stripping solvent from dewaxed oils, deoiled waxes and slack waxes with inert gas in counterflow |
04/22/1980 | US4199431 Oxidation of petrolatums in the presence of halide salts |
04/15/1980 | CA1075629A1 Olefin dicarboxylic copolymers and esters thereof as dewaxing aids |
03/25/1980 | CA1074244A1 Hydrodewaxing |
03/11/1980 | US4192733 Solvent dewaxing waxy hydrocarbon oils using dewaxing aid |
03/11/1980 | US4192732 Recovery and recycle of dewaxing aid |
03/04/1980 | US4191631 Ketone solvent, polyalkyl acrylate crystal modifier |
02/19/1980 | CA1072036A1 Immiscible coolant in propylene-acetone dewaxing |
01/29/1980 | US4186078 Metal oxide hydrogenation catalyst on porous alkali metal aluminum silicate |
01/09/1980 | EP0006665A1 Process for the separation of straight paraffins from a mixture |
11/27/1979 | US4176050 Catalytic dewaxing, zeolites |
11/20/1979 | CA1066832A1 Mixed oxidation product on the basis of bark waxes and other waxes |
10/23/1979 | CA1064847A1 Mineral oil dewaxing process with dehydration of feed and solvent |
09/25/1979 | US4169039 Recovering useful oil from wax filter hot washings and dumped slurry |
09/04/1979 | CA1061732A1 Temporarily immiscible dewaxing |
08/14/1979 | CA1060460A1 Hydroxyalkylhydroxy - aromatic condensation products as fuel and lubricant additives |
08/07/1979 | US4163730 Hydroxyalkyl hydroxy-aromatic condensation products as lubricant additives |
04/24/1979 | US4151069 Olefin-dicarboxylic anhydride copolymers and esters thereof are dewaxing aids |
04/17/1979 | US4149960 Dewaxing by contacting with an aluminum silicate zeolite catalyst |
04/10/1979 | US4148711 Microcrystalline waxes, colorless |
03/27/1979 | US4146461 Dilution chilling dewaxing by modification of tower temperature profile |
03/20/1979 | US4145275 Dilchill dewaxing using wash filtrate solvent dilution |
03/20/1979 | CA1050913A1 Process for the purification of slack waxes |
02/27/1979 | CA1049435A1 Method and apparatus for wax deoiling |
02/20/1979 | US4140620 Incremental dilution dewaxing process |
02/20/1979 | US4140619 Wax treating process |
02/13/1979 | US4139494 Catalyst for hydrofining petroleum wax |
12/05/1978 | US4128472 Solvent dewaxing process |
11/07/1978 | US4124650 Process for the production of low pour point synthetic oils |
11/07/1978 | US4124495 Processing of crude oils |
10/03/1978 | CA1039675A1 Urea dewaxing of low n-paraffin content oils |
09/19/1978 | US4115245 Solvent dewaxing process |
09/19/1978 | US4115244 Petroleum distillates |
09/19/1978 | US4115243 Solvent dewaxing process |
09/19/1978 | US4115242 Solvent dewaxing process |
09/19/1978 | US4115241 Precipitation, fractionation |
09/05/1978 | US4111790 Dilution chilling dewaxing solvent |
08/22/1978 | US4108784 Hydroxyalkyl hydroxy-aromatic condensation products as fuel and lubricant additives |
08/15/1978 | CA1036527A1 Catalytic hydrodewaxing gas oils and other selective hydrocracking |
08/08/1978 | US4105539 Dewaxing with a polymerized polyol ester dewaxing aid |
05/23/1978 | US4090950 Without acid treatment and clay contact, catalytic hydrogenation and dewaxing |
05/09/1978 | US4088565 Solvent dewaxing process |
05/09/1978 | US4088564 Dehydrating process for ketone dewaxing solvents |
05/02/1978 | US4087255 Copolymers of ethylene and ethylenically unsaturated monomers, process for their preparation and distillate oil containing said copolymers |
04/11/1978 | US4083731 Polishes, chromic and sulfuric acid |
03/28/1978 | US4081352 Combination extraction-dewaxing of waxy petroleum oils |
01/24/1978 | US4070410 Method of isolating individual normal alkanes from petroleum stock |
01/24/1978 | US4070269 Complexing, slurrying |
11/29/1977 | US4060569 Hydrocarbon polymers |
10/04/1977 | US4052294 Method of solvent recovery in autorefrigerant/ketone dewaxing processes |
09/13/1977 | US4048094 Reactivation of hydrotreating catalyst by operating at a temperature in excess of normal operating temperature |
09/13/1977 | US4048055 Process for regenerating aqueous urea solutions |
08/16/1977 | US4042411 Method of processing food paraffins and uses of obtained products |
07/05/1977 | US4033855 Mineral oil dewaxing process with dehydration of feed and solvent |
03/22/1977 | US4013542 Partial predilution dilution chilling |
03/22/1977 | US4013541 Method and apparatus for wax deoiling |
09/21/1976 | US3981850 Process for preparing copolymers of ethylene and vinyl esters or mixtures with other ethylenically unsaturated monomers |
09/21/1976 | US3981789 Apparatus for oil dewaxing |
09/07/1976 | US3979345 Extrusion of a thermoplastic resin mixed with a paraffin wax and calcium fatty acid salt |
08/03/1976 | US3972802 Immiscible coolant in propylene-acetone dewaxing |
06/01/1976 | US3960703 Process for the purification of slack waxes |
05/11/1976 | US3956102 Hydrodewaxing |
03/23/1976 | US3945912 Mineral oils, paraffin-urea adducts |