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