Patents for C10G 73 - Recovery or refining of mineral waxes, e.g. montan wax (1,976) |
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07/17/1984 | US4460453 Solvent dewaxing waxy bright stock using a combination polydialkyl fumarate-vinyl acetate copolymer and polyalkyl (meth-) acrylate polymer dewaxing aid |
07/03/1984 | US4458024 Group 8 and group 6 oxides on zeolite and alumina |
06/13/1984 | EP0110651A1 Process for separating wax from mixture of wax and oil or wax, oil and solvent |
05/29/1984 | US4451572 Production of surface modified zeolites for shape selective catalysis |
05/29/1984 | US4451353 Solvent dewaxing waxy hydrocarbon distillates using a combination poly acrylate polymer and polymethacrylate polymer dewaxing aid |
05/09/1984 | EP0107917A1 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 22 and polyalkyl (meth-)acrylate polymer dewaxing aid |
05/08/1984 | US4447311 Vaporization of autorefrigerant in flotation column, separation of wax from oil, and removal |
04/24/1984 | US4444648 Solvent dewaxing with methyl tertiary butyl ether |
04/18/1984 | EP0105631A1 Very low crystallinity catalyst made from crystalline zeolite and process for catalytic dewaxing/pour point reduction of waxy hydrocarbon oils using said catalyst |
04/18/1984 | EP0105529A1 Copolymers, process for their preparation and their use |
04/10/1984 | US4441987 Dewaxing process using agitated heat exchanger to chill solvent-oil and wax slurry to wax filtration temperature |
04/04/1984 | EP0104890A1 Separation of a crystallized component from a slurry |
04/04/1984 | EP0104855A2 Improved hydrodewaxing catalyst and process |
03/27/1984 | US4439308 Solvent dewaxing waxy bright stock using a combination polydialkylfumarate-vinyl acetate copolymer and wax-naphthalene condensate dewaxing aid |
02/14/1984 | US4431527 Denitrogenation and catalytic cracking using a hydrorefining catalyst of refractory, zeolite, phosporus pentoxide and metal oxide |
02/08/1984 | EP0100115A2 Composite crystalline alumium silicates and their use in a process for dewaxing hydrocarbon oils |
02/07/1984 | CA1161828A1 Mixed alkyl esters of interpolymers for use in crude oils |
12/27/1983 | US4422924 Solvent dewaxing waxy hydrocarbons using an alpha olefin polymer-olefin vinyl acetate copolymer composite dewaxing aid |
12/06/1983 | US4419220 Zeolite beta catalyst |
11/30/1983 | EP0095303A1 Catalytic dewaxing process |
11/08/1983 | CA1156588A1 Catalytic dewaxing of hydrocarbon oils |
11/01/1983 | CA1156265A1 Process for carrying out catalytic conversions |
10/04/1983 | CA1154668A1 Mechanically agitated liquid-vapor contacting apparatus |
09/27/1983 | US4406771 Solvent dewaxing waxy hydrocarbon oil distillates using a combination poly di-alkyl fumarate-vinyl acetate copolymer having pendent carbon side chain length of predominantly C22 and polyalkyl(meth-)acrylate polymer dewaxing aid |
09/14/1983 | EP0088603A1 Process for solvent dewaxing hydrocarbon oil using methyl tertiary butyl ether |
09/14/1983 | EP0088458A2 Process for the separation of a liquid mixture |
09/14/1983 | EP0088405A2 Process for the extraction of high quality natural waxes |
09/06/1983 | US4403044 Process for carrying out catalytic conversions |
07/19/1983 | US4394251 Hydrocarbon conversion with crystalline silicate particle having an aluminum-containing outer shell |
06/28/1983 | US4390414 Selective dewaxing of hydrocarbon oil using surface-modified zeolites |
06/22/1983 | EP0082019A2 Selective dewaxing of hydrocarbon oil using surface modified zeolites |
06/14/1983 | US4388244 Reaction product with polyamine; corrosion inhibitor |
06/07/1983 | CA1147689A1 Solvent dewaxing waxy hydrocarbon oils using a lithium isostearate-acrylic ester polymer dewaxing aid |
05/31/1983 | CA1147108A1 Modification of regenerated cellulose membranes for organic liquid permeation and the use of said membranes to recover selected organic liquids |
05/24/1983 | US4384835 Apparatus for the production of beads from molten materials |
04/12/1983 | CA1144503A2 Continuous autorefrigerative dewaxing process and apparatus |
03/22/1983 | US4377469 Maintaining catalytic activity of sodium aluminosilicates |
03/22/1983 | US4377467 Solvent dewaxing waxy hydrocarbon oils using dewaxing aid |
03/22/1983 | CA1143317A1 Polyvinylpyrrolidone dewaxing aid for bright stocks |
03/08/1983 | US4376035 Process for the separation of saturated hydrocarbons from a hydrocarbon charge containing them |
03/01/1983 | US4375403 Solvent dewaxing process |
03/01/1983 | CA1142112A1 Process for manufacturing lube base stocks |
02/23/1983 | EP0072379A1 Mechanically agitated liquid-vapor contacting apparatus |
01/25/1983 | CA1140067A1 Continuous autorefrigerative dewaxing process and apparatus |
01/11/1983 | US4368112 Conditioned by series of solvents of decreasing polarity |
01/05/1983 | EP0068199A1 Petroleum or hydrocarbon wax oxidate composition |
12/21/1982 | CA1137911A1 Process for the separation of saturated hydrocarbons from a hydrocarbon charge containing them |
12/01/1982 | EP0065704A1 Redox catalyst plus promoter for oxidation of hydrocarbons |
11/09/1982 | US4358363 Method for enhancing catalytic activity |
11/09/1982 | US4358362 Method for enhancing catalytic activity |
11/08/1982 | EP0054031A4 Solvent dewaxing process. |
11/02/1982 | US4357232 Method for enhancing catalytic activity |
10/26/1982 | US4356080 Solvent deoiling apparatus and process |
10/19/1982 | US4354921 Solvent dewaxing process |
10/12/1982 | US4354003 Synergistic mixture having improved efficiency |
10/12/1982 | CA1133412A1 Production of high v.i. lubricating oil stock |
10/05/1982 | CA1132935A1 Filtration of wax in a solvent dewaxing process |
09/21/1982 | CA1132073A1 Solvent dehydration system |
09/07/1982 | CA1131155A1 Dewaxing process |
08/24/1982 | CA1130232A1 Solvent dewaxing wax-containing hydrocarbon oils using dewaxing aid |
08/18/1982 | EP0057980A1 Pretreatment of catalytic dewaxing feedstocks |
08/04/1982 | EP0057071A1 Pretreatment of catalytic dewaxing feedstocks |
07/28/1982 | EP0056718A2 Pretreatment of catalytic conversion feedstocks |
07/13/1982 | US4339619 Solvent dewaxing waxy hydrocarbon oils using dewaxing aid |
06/23/1982 | EP0054031A1 Solvent dewaxing process |
06/15/1982 | US4334978 Precipitating from a hydrocarbon oil-solvent mixture |
04/06/1982 | CA1121291A1 Control system and method for a plurality of solvent dewaxing filters |
03/16/1982 | US4319962 Continuous autorefrigerative dewaxing apparatus |
02/16/1982 | US4315813 Solvent dewaxing waxy hydrocarbon oils using dewaxing aid |
02/09/1982 | US4314886 For dewaxing hydrocarbons |
02/09/1982 | CA1117888A1 Solvent dewaxing waxy hydrocarbon oils using dewaxing aid |
02/02/1982 | CA1117457A1 Catalytic dewaxing with a hydrogen form zeolite l catalyst |
01/26/1982 | CA1117064A1 Recovery and recycle of dewaxing aid |
01/26/1982 | CA1117063A1 Dilution chilling dewaxing by modification of tower temperature profile |
01/07/1982 | WO1982000029A1 Solvent dewaxing process |
11/17/1981 | CA1112594A1 Methods and rotary continuous vacuum filter, particularly for dewaxing oil |
11/10/1981 | CA1112201A1 Recovering useful oil from wax filter hot washings and dumped slurry |
11/10/1981 | CA1112196A1 Sweating |
11/03/1981 | CA1111797A1 Dilution chilling dewaxing solvent |
11/03/1981 | CA1111781A1 Wax separation process |
09/30/1981 | EP0036460A1 A continuous process for dewaxing waxy oil using dewaxing solvent and auto-refrigerant, and apparatus therefor |
09/16/1981 | EP0035807A1 Process for carrying out catalytic conversions |
09/01/1981 | CA1108084A1 Gas oil processing |
08/18/1981 | US4284414 Mixed alkyl esters of interpolymers for use in crude oils |
08/18/1981 | CA1107217A1 Process for alkylating waxy hydrocarbons |
08/11/1981 | CA1106859A1 Process for the production of low pour point synthetic oils |
06/30/1981 | CA1104082A1 Process for manufacturing refrigeration oils |
06/16/1981 | CA1103187A1 Dewaxing waxy oil by dilution chilling employing static mixing means |
06/09/1981 | CA1102730A1 Processing of crude oils |
06/03/1981 | EP0029778A1 Process for the separation of saturated hydrocarbons from a hydrocarbon feed |
05/26/1981 | US4269695 Reclaiming wax contaminated lubricating oils |
05/06/1981 | EP0027841A1 Dewaxing plant |
04/29/1981 | EP0027722A2 Process for dewaxing hydrocarbons employing low-speed scraped-surface chillers |
04/21/1981 | US4262790 Controllable flow through heat exchanger |
04/21/1981 | CA1099655A1 Incremental dilution dewaxing process |
03/31/1981 | US4259174 Catalytic dewaxing of hydrocarbon oils |
03/31/1981 | US4259169 Process for the separation of n-paraffins from hydrocarbon oils |
12/10/1980 | EP0020094A1 An improved solvent extraction process for providing lubricating oil fractions |
12/09/1980 | US4238321 Selective adsorption on a molecular sieve; desorption by hydrogen gas |
11/12/1980 | EP0018778A1 Catalytic dewaxing of hydrocarbon oils |