| Patents for C10G 73 - Recovery or refining of mineral waxes, e.g. montan wax (1,976) |
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| 09/27/1989 | EP0334578A2 A solvent de-waxing method involving multi-point cold solvent injection in scraped surface dewaxing chillers |
| 09/27/1989 | EP0334547A2 Adjusting charge ratio of liquid mixtures |
| 09/27/1989 | CN1035837A Internal-chill dewaxing technology and apparatus |
| 09/19/1989 | CA1259569A1 Method for dewaxing aid recovery by means of ultrafiltration using a selective membrane and the spiral wound element for such recovery |
| 08/01/1989 | US4853129 Modified regenerated cellulose membrane for non-aqueous separations |
| 07/26/1989 | CN2041686U Spiral propulsion crystallizer with ceresin wax drivepipe |
| 07/19/1989 | EP0324528A1 Process for the preparation of a lubricating base oil |
| 07/12/1989 | EP0323724A2 A method for stabilizing hydroisomerates |
| 07/12/1989 | CN1033757A Dewaxing catalysts and processes employing silicoaluminophosphate molecular sieves |
| 07/12/1989 | CN1004760B Dewaxing catalysts and processes employing non-zeolitic molecular sieves |
| 07/05/1989 | CN1033643A Automatical and continuous producing technique of chlorinated paraffin wax and chlorocarbon |
| 07/05/1989 | CN1033642A Catalytic dewaxing process with high temperature sorbent bed |
| 06/28/1989 | CN1004633B Process for catalytic dewaxing and catalyst composition thereof |
| 06/27/1989 | US4843184 Process for extracting paraffins from their mixtures with paraffinsulfonic acids |
| 06/21/1989 | EP0321306A2 Wax isomerization process using palladium on fluorided amumina catalyst |
| 06/21/1989 | EP0321304A2 Method of improving lube oil yield by wax isomerization employing low treat gas rates |
| 06/21/1989 | EP0321303A2 Process for the hydroisomerization of wax to produce middle distillate products |
| 06/21/1989 | EP0321302A2 Method for isomerizing wax to lube base oils using an isomerization catalyst |
| 06/21/1989 | EP0321300A2 Wax isomerization catalyst and its production |
| 06/21/1989 | EP0321299A2 Process for preparing a wax isomerization catalyst |
| 06/21/1989 | EP0321298A2 Method for isomerizing wax to lube base oils using a sized isomerization catalyst |
| 06/21/1989 | EP0321061A2 Process for the catalytic dewaxing of a hydrocarbon oil |
| 06/06/1989 | US4837398 Ammonium activation of zeolites in the presence of gaseous ammonia |
| 06/06/1989 | US4836927 Recovery of dewaxing aid using asymmetric polyimide ultrafiltration membrane and method for producing said membrane |
| 05/23/1989 | CA1254530A1 Styrene-dialkyl maleate copolymers as dewaxing agents |
| 05/16/1989 | CA1254162A1 Method for dewaxing hydrocarbon oil |
| 05/16/1989 | CA1254006A1 Thin cellulose membrane regenerated in alcoholic acid solution for dewaxing hydrocarbon oils |
| 05/10/1989 | CN1032810A Catalytic hydrodewaxing process |
| 05/02/1989 | US4827078 Process for extracting paraffins from their mixtures with alkanesulfonic acids |
| 04/26/1989 | EP0313276A1 Catalytic hydrodewaxing process |
| 04/25/1989 | US4824553 Wax sweating process |
| 04/25/1989 | CA1253108A1 Mixed zeolite hydrodewaxing catalysts |
| 04/25/1989 | CA1253107A1 Process for dewaxing heavy distillates and residual liquids |
| 04/18/1989 | CA1252746A1 Catalytic dewaxing of light and heavy oils in duel parallel reactors |
| 04/11/1989 | US4820400 Introducing free charge before filtration with undewaxed oil |
| 03/15/1989 | CN1031711A Dewaxing catalysts employing non-zeolitic molecular sieves |
| 03/08/1989 | CN1031558A Catalytic dewaxing process |
| 03/07/1989 | US4810357 Zeolites |
| 02/28/1989 | CA1250530A1 Dewaxing aid recovery by use of semipermeable membranes |
| 02/22/1989 | EP0304252A1 Catalytic dewaxing process using binder-free catalyst |
| 02/22/1989 | EP0304251A1 Catalytic dewaxing process |
| 02/08/1989 | EP0302636A1 Ammonium activation of zeolites in the presence of gaseous ammonia |
| 01/31/1989 | CA1249578A1 Hydrocarbon oxidate composition |
| 01/31/1989 | CA1249565A1 Process for the preparation of composite crystalline aluminium silicates and their use as catalyst (carrier) |
| 01/31/1989 | CA1249544A1 Solvent dewaxing waxy hydrocarbon distillates using a combination poly acrylate polymer and polymethacrylate polymer dewaxing aid |
| 01/25/1989 | EP0300103A1 Wax crystal modification using dewaxing aids under agitated conditions |
| 01/17/1989 | US4798915 Process for the extraction of paraffins from mixtures thereof with alkane-sulfonic acids |
| 01/10/1989 | CA1248486A1 Filter-centrifuge series combination for improved oil- wax separation |
| 01/10/1989 | CA1248483A1 Process for making improved lubricating oils from heavy feedstock |
| 11/01/1988 | CA1243995A1 Catalytic dewaxing of lubricating oils |
| 10/26/1988 | EP0288293A2 Improved zeolite ZK-5 |
| 10/19/1988 | EP0287234A1 Multi-phase countercurrent hydrodewaxing process |
| 10/18/1988 | US4778945 Process for removing paraffins from their mixtures with paraffinsulphonic acids |
| 10/12/1988 | CN88105504A Extraction of paraffin from waste clays reclaimed in refining of paraffin |
| 09/13/1988 | US4770763 Process for producing lubricant base oil |
| 08/23/1988 | CA1240945A1 Straight chain paraffin producing material |
| 08/17/1988 | EP0278693A2 Process for producing formulated dewaxed oil products |
| 07/06/1988 | EP0273592A1 Process for continuous dewaxing of hydrocarbon oils |
| 06/29/1988 | EP0272729A1 Process for the manufacture of lubricating base oils |
| 06/22/1988 | CN87107355A Process for manufacture of lubricating base oils |
| 05/31/1988 | US4748288 Process for the separation of solvents from hydrocarbons dissolved in the solvents |
| 05/24/1988 | CA1237238A1 Dialkyl fumarate-vinyl acetate copolymers useful as dewaxing aids |
| 05/11/1988 | CN87105310A Process for extracting paraffins from their mixtures with alkanesulphonic acids |
| 05/10/1988 | US4743660 Water-dispersible quaternized aminoamide-modified waxes useful as textile finishing agents |
| 05/10/1988 | US4743354 Process for producing a product hydrocarbon having a reduced content of normal paraffins |
| 05/03/1988 | CA1236042A1 Solvent dewaxing waxy bright stock using a combination polydialkylfumarate-vinyl acetate copolymer and wax-naphthalene condensate dewaxing aid |
| 04/20/1988 | CN87105311A Process for extracting paraffins from their mixtures with paraffinsulphonic acids |
| 04/13/1988 | EP0263228A2 Process for producing a product hydrocarbon having a reduced content of normal paraffins |
| 04/05/1988 | US4735703 Method of increasing the concentration of straight chain paraffin material |
| 03/30/1988 | EP0261701A1 Process for removing paraffins from their mixtures with paraffinsulphonic acids |
| 03/30/1988 | EP0261700A1 Process for extracting paraffins from their mixtures with parraffinsulphonic acids |
| 03/23/1988 | CN87105306A Process for removing paraffins from their mixtures with paraffinsulphonic acids |
| 03/08/1988 | CA1233776A1 Overnight cloud and color in lube dewaxing |
| 03/02/1988 | CN86105061A Method of dewaxing and wax fractionation with solvent |
| 03/01/1988 | US4728414 Hydrocarbon oils |
| 03/01/1988 | US4728413 Agitated dewaxing employing modified agitator means |
| 01/27/1988 | EP0254368A1 Process for extracting paraffins from their mixtures with alkanesulphonic acids |
| 01/07/1988 | EP0251624A2 Process for producing lubricant base oil |
| 12/09/1987 | CN87103203A Crystalline aluminium silicate, its preparation and its use as catalyst (carrier) |
| 12/02/1987 | EP0247762A1 Method of improving filtration of wax from wax/oil slurry by agitation with modified agitator means |
| 11/10/1987 | CA1229061A1 Solvent dewaxing waxy hydrocarbon oil distillates using a combination poly di-alkyl fumarate-vinyl acetate copolymer having pendent carbon side chain length of predominantly c.sub.2.sub.2 and polyalkyl(meth-)acrylate polymer dewaxing acid |
| 11/04/1987 | CN87103209A Process for extraction of paraffin from mixtures thereof with alkane-sulphonic acids |
| 10/28/1987 | EP0242904A2 A crystalline aluminium silicate, its preparation and its use as catalyst (carrier) |
| 10/28/1987 | CN86108258A Process for catalytic dewaxing of more than one refinery-derived lubricating base oil precursor |
| 10/27/1987 | US4702817 Removing haze from hydrocarbon oil mixture boiling in the lubricating oil range |
| 10/27/1987 | CA1228564A1 Hydrodewaxing catalyst and process |
| 10/20/1987 | US4701254 Using aluminum oxide adsorbent |
| 10/07/1987 | CN86107556A Lubricant production process |
| 09/30/1987 | EP0239177A1 Process for the extraction of paraffins from mixtures thereof with alkane-sulphonic acids |
| 09/23/1987 | EP0237655A1 Process for catalytic dewaxing of more than one refinery-derived lubricating base oil precursor |
| 09/22/1987 | US4695364 Lube or light distillate hydrodewaxing method and apparatus with light product removal and enhanced lube yields |
| 09/22/1987 | US4695363 Wax crystal modification using dewaxing aids under agitated conditions |
| 09/22/1987 | CA1227153A1 Dewaxing process using agitated heat exchanger to chill solvent-oil and wax slurry to wax filtration temperature |
| 09/16/1987 | EP0236590A1 Process for the preparation of ferrierite and its use as dewaxing catalyst (carrier) |
| 09/16/1987 | CN87100834A Hydrodewaxing method and apparatus |
| 09/09/1987 | CN86108200A Process for preparation of ferrierite and its use as dewaxing catalyst (carrier) |
| 09/02/1987 | EP0234123A1 Hydrodewaxing method and apparatus |
| 08/19/1987 | CN86107004A Oil and fuel oil compositions |
| 08/11/1987 | US4686029 Lowering pour point |
| 08/11/1987 | CA1225349A1 Slack wax de-oiling process |