Patents for C10G 71 - Treatment by methods not otherwise provided for of hydrocarbon oils or fatty oils for lubricating purposes (421) |
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11/29/2000 | EP1054939A1 Improved wax hydroisomerization process |
11/29/2000 | EP1054938A1 Process for improving basestock low temperature performance using a combination catalyst system |
11/29/2000 | EP1054935A1 Hydroconversion process for making lubricating oil basestocks |
11/08/2000 | CN1058285C Lubricating oil high-temp. simulated oxidation device |
06/27/2000 | CA2107375C Process for producing low viscosity lubricating base oil having high viscosity index |
02/17/2000 | WO2000008116A1 A process for producing a lubricant base oil having improved oxidative stability |
02/17/2000 | WO2000008115A1 A lubricant base oil having improved oxidative stability |
02/17/2000 | CA2337888A1 A process for producing a lubricant base oil having improved oxidative stability |
02/15/2000 | US6025305 Process for producing a lubricant base oil having improved oxidative stability |
01/06/2000 | WO2000000521A1 Polyalphaolefins with improved oxidative stability and the process of making thereof |
12/28/1999 | US6008164 Lubricant base oil having improved oxidative stability |
08/19/1999 | WO1999041338A1 Raffinate hydroconversion process |
08/19/1999 | WO1999041337A1 Improved wax hydroisomerization process |
08/19/1999 | WO1999041336A1 Production of lubricating oils by a combination catalyst system |
08/19/1999 | WO1999041335A1 A lube basestock with excellent low temperature properties and a method for making |
08/19/1999 | WO1999041334A1 Process for improving basestock low temperature performance using a combination catalyst system |
08/19/1999 | WO1999041333A1 Process for making a lube basestock |
08/19/1999 | WO1999041327A1 Hydroconversion process for making lubricating oil basestocks |
08/19/1999 | CA2320106A1 Process for improving basestock low temperature performance using a combination catalyst system |
08/19/1999 | CA2319385A1 Process for making a lube basestock |
08/19/1999 | CA2319146A1 Improved wax hydroisomerization process |
08/10/1999 | US5935417 Hydroconversion process for making lubricating oil basestocks |
08/10/1999 | US5935416 Preparing lubricating oil basestocks having a high saturates content, high viscosity indices and low volatilities by hydroconversion, followed by a cold hydrofinishing step, catalytic dewaxing and solvent dewaxing |
08/04/1999 | EP0675938B1 Lubricant production by hydroisomerization of solvent extracted feedstocks |
06/30/1999 | EP0926218A2 Production process of low pour-point oil. |
12/02/1998 | EP0769984A4 Zeolite ssz-41 |
04/08/1998 | EP0833878A1 Method for preparing lubricating oils |
02/25/1998 | CN1174225A Ttansformer oil and its preparation |
12/16/1997 | US5699270 Method for preparing lubrication oils (LAW232) |
11/05/1997 | CN1163922A Lubricating oils |
10/15/1997 | CN1162005A Lubricant oil |
10/08/1997 | EP0799082A1 Wax hydroisomerization process |
08/13/1997 | CN1156753A Raw material formula for producing vaseline |
08/13/1997 | CN1156750A Process for producing vaseline using waste plastics as raw material |
08/12/1997 | US5656149 Hydrocarbon conversion processes using zeolite SSZ-41 |
06/18/1997 | CN1152263A Zeolite SSZ-41 |
06/04/1997 | CN1150969A Lubricating oil high-temp. simulated oxidation device |
05/02/1997 | EP0769984A1 Zeolite ssz-41 |
01/29/1997 | CN1141332A Multi-stage, energy-saving and universal lubricating oil and prepn. process thereof |
01/09/1997 | WO1997000926A1 Method for preparing lubricating oils |
01/07/1997 | US5591421 Zeolite SSZ-41 |
09/11/1996 | CN1130676A Process for improving lubricating base oil quality |
09/10/1996 | US5554307 Dry activated carbon |
09/06/1996 | WO1996026993A1 Wax hydroisomerization process |
09/06/1996 | CA2204127A1 Wax hydroisomerization process |
06/13/1996 | CA2203366A1 Production of high viscosity index lubricants |
01/25/1996 | WO1996001688A1 Zeolite ssz-41 |
10/31/1995 | US5462650 Catalytic hydrocracking of stock oil in presence of silica-alumina support which contains group 5 and 8 metal, cracked product separation into fuel and lubricating oil fractions by distillation, dewaxing and hydrofinishing of lubricating oil |
10/25/1995 | CN1110709A Method of production of transformer oil with hydrocracking tail oil |
10/11/1995 | EP0675938A1 Lubricant production by hydroisomerization of solvent extracted feedstocks |
09/20/1995 | EP0458895B1 Isomerization of waxy lube oils and petroleum waxes using a silicoaluminophosphate molecular sieve catalyst |
12/14/1994 | CN1026992C Process for the manufacture of lubricating base oils |
10/19/1994 | EP0620264A2 Lubricating oils |
08/24/1994 | CN1091150A Method for production of lubricating oil base oil by hydrode-waxing |
08/10/1994 | EP0438588B1 Process for preparing low pour middle distillates and lube oil using a catalyst containing a silicoaluminophosphate molecular sieve |
07/07/1994 | WO1994014924A1 Lubricant production by hydroisomerization of solvent extracted feedstocks |
07/07/1994 | CA2145086A1 Lubricant production process |
04/12/1994 | US5302279 Solvent extraction of a waxy vacuum gas oil feed to lower aromatics and nitrogen heterocyclic compounds followed by using a low acidity zeolite beta hydrorefining catalyst to produce a high viscosity index lube |
04/06/1994 | EP0590672A1 Process for producing low viscosity lubricating base oil having high viscosity index |
10/07/1992 | CN1018553B Camalytic dewaxing process using binderfree camalyst |
08/18/1992 | US5139647 Process for preparing low pour middle distillates and lube oil using a catalyst containing a silicoaluminophosphate molecular sieve |
08/04/1992 | US5135638 Wax isomerization using catalyst of specific pore geometry |
07/29/1992 | CN1017624B Process for increasing moleoular weight of hydrocarbons and /or derivatives thereof |
06/09/1992 | CA1302935C Catalytic dewaxing process using binder-free catalyst |
03/24/1992 | US5098551 Catalytic hydroisomerization of hydrocarbon to form lubricants |
12/18/1991 | EP0458895A4 Isomerization of waxy lube oils and petroleum waxes using a silicoaluminophosphate molecular sieve catalyst |
12/04/1991 | EP0458895A1 Isomerization of waxy lube oils and petroleum waxes using a silicoaluminophosphate molecular sieve catalyst. |
10/23/1991 | EP0452320A1 Synthetic polyolefin lubricant blends having high viscosity indices |
08/13/1991 | US5039399 Solvent extraction of lubricating oils |
07/23/1991 | US5034108 Hydrocarbons formed by generating a hydrogen plasma using an electrical field and generating a higher molecular weight |
06/26/1991 | EP0434342A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
06/20/1991 | CA2031163A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
06/05/1991 | EP0430444A1 Solvent extraction of lubricating oils |
02/15/1991 | WO1991002782A1 Process for preparing low pour middle distillates and lube oil using a catalyst containing a silicoaluminophosphate molecular sieve |
02/15/1991 | CA2035027A1 Process for preparing low pour middle distillates and lube oil using a catalyst containing a silicoaluminophosphate molecular sieve |
02/05/1991 | US4990711 Oligomerized substantially linear olefins |
12/12/1990 | CN1047687A Process for manufacture of lubricating base oils |
12/05/1990 | EP0400742A1 Process for the manufacture of lubricating base oils |
10/09/1990 | US4962271 Permselective membranes |
08/22/1990 | EP0383395A1 Lubricating base oils |
08/18/1990 | WO1990009363A1 Isomerization of waxy lube oils and petroleum waxes using a silicoaluminophosphate molecular sieve catalyst |
08/14/1990 | CA2009830A1 Lubricating base oils |
07/04/1990 | EP0376637A1 Process for the manufacture of polyolefin lubricants from sulfur-containing thermally cracked petroleum residua |
06/29/1990 | CA2004494A1 Multistep process for the manufacture of novel polyolefin lubricants from sulfur containing thermally cracked petroleum residua |
04/03/1990 | US4913794 Controlling diffusion mixing of lubricating oil and organic peroxide |
03/21/1990 | CN1040613A Camalytic dewaxing process using binderfree camalyst |
02/20/1990 | CA1266007A1 Adsorbent processing to reduce basestock foaming |
01/24/1990 | CN1039047A Process for increasing molecular weight of hydrocarbons and/or derivatives thereof |
12/28/1989 | WO1989012672A1 Synthetic polyolefin lubricant blends having high viscosity indices |
12/20/1989 | EP0346999A1 Process for increasing the molecular weight of hydrocarbons and/or derivatives thereof |
10/10/1989 | US4872968 Catalytic dewaxing process using binder-free catalyst |
02/22/1989 | EP0304252A1 Catalytic dewaxing process using binder-free catalyst |
08/10/1988 | CN87105043A High temp. refining technology of waste oil regeneration using clay and without pollution |
07/15/1986 | US4600502 Adsorbent processing to reduce basestock foaming |
07/09/1986 | EP0187036A2 Adsorbent processing to reduce hydrocarbon basestock foaming |
04/15/1986 | CA1203225A1 Two-stage hydrocarbon dewaxing hydrotreating process |
05/21/1985 | US4518481 Catalytic hydrogen refining |
05/14/1985 | CA1187072A1 Process for production of oxidation-resistant hydrocarbon oil composition and oxidation-resistant composition made thereby |
10/16/1984 | CA1176197A1 Lubricating oil stabilizer |
11/08/1983 | US4413914 Recovery of heavy hydrocarbons from oil sludge |