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Class Information
Number: 208/45
Name: Mineral oils: processes and products > Asphalts, tars, pitches and resins; making, treating and recovery > Solvent extraction
Description: Processes including a solvent extraction of the asphalt, tar, pitch, or resin.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622035 |
Methods of deresinating crude oils using carbon dioxide |
Nov. 24, 2009 |
| 7597794 |
Deep separation method and processing system for the separation of heavy oil through granulation of coupled post-extraction asphalt residue |
Oct. 6, 2009 |
| 7579303 |
Polar solvent-asphaltene dispersant method for upgrading heavy oils |
Aug. 25, 2009 |
| 7566394 |
Enhanced solvent deasphalting process for heavy hydrocarbon feedstocks utilizing solid adsorbent |
Jul. 28, 2009 |
| 7540951 |
Integrated scheme of processes for extracting and treating an extra-heavy or bituminous crude |
Jun. 2, 2009 |
| 7438797 |
Method of controlling asphaltene precipitation in a fluid |
Oct. 21, 2008 |
| 7393449 |
Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content |
Jul. 1, 2008 |
| 7381320 |
Heavy oil and bitumen upgrading |
Jun. 3, 2008 |
| 6878263 |
Rubber process oil and production process thereof |
Apr. 12, 2005 |
| 6821413 |
Method and apparatus for continuous separation and reaction using supercritical fluid |
Nov. 23, 2004 |
| 6717021 |
Solvating component and solvent system for mesophase pitch |
Apr. 6, 2004 |
| 6673234 |
Combined process of low degree solvent deasphalting and delayed coking |
Jan. 6, 2004 |
| 6641716 |
Method for isolating enriched source of conducting polymers precursors using monohydroxyl alcohol treating agent |
Nov. 4, 2003 |
| 6566410 |
Methods of demulsifying emulsions using carbon dioxide |
May. 20, 2003 |
| 6555728 |
Process for decontamination of ballast pitch material |
Apr. 29, 2003 |
| 6549817 |
Method for regulating centrifuges for dehydrating wastewater sludge, using fuzzy logic |
Apr. 15, 2003 |
| 6533925 |
Asphalt and resin production to integration of solvent deasphalting and gasification |
Mar. 18, 2003 |
| 6464859 |
Process for deacidifying a crude oil system |
Oct. 15, 2002 |
| 6464856 |
Separation of tars, oils and inorganic constituents from oil bearing sands or shales |
Oct. 15, 2002 |
| 6383365 |
Low softening point petroleum pitch and sealer |
May. 7, 2002 |
| 6357526 |
Field upgrading of heavy oil and bitumen |
Mar. 19, 2002 |
| 6274030 |
Filtration of feed to integration of solvent deasphalting and gasification |
Aug. 14, 2001 |
| 6270653 |
Method of controlling asphaltene precipitation in a fluid |
Aug. 7, 2001 |
| 6270652 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers |
Aug. 7, 2001 |
| 6245217 |
Regenerative thermal oxidation system for treating asphalt vapors |
Jun. 12, 2001 |
| 6241874 |
Integration of solvent deasphalting and gasification |
Jun. 5, 2001 |
| 6194344 |
Process for preparing carbonaceous material carrying ultrafinely dispersed metal |
Feb. 27, 2001 |
| 6174431 |
Method for obtaining base oil and removing impurities and additives from used oil products |
Jan. 16, 2001 |
| 6117305 |
Method of producing water slurry of SDA asphaltene |
Sep. 12, 2000 |
| 6106701 |
Deasphalting process |
Aug. 22, 2000 |
| 6080302 |
Method for making a process oil by using aromatic enrichment with extraction followed by single stage hydrofinishing (LAW764) |
Jun. 27, 2000 |
| 6074558 |
Biochemical treatment of bitumen froth tailings |
Jun. 13, 2000 |
| 6048447 |
Asphalt compositions containing solvent deasphalted bottoms and rerefined lube oil bottoms, and their preparation |
Apr. 11, 2000 |
| 5998640 |
Method for recovering oil from an oil-bearing solid material |
Dec. 7, 1999 |
| 5968349 |
Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands |
Oct. 19, 1999 |
| 5932186 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers |
Aug. 3, 1999 |
| 5846405 |
Process oils and manufacturing process for such using aromatic enrichment and two pass hydrofinishing |
Dec. 8, 1998 |
| 5843302 |
Solvent deasphalting unit capable of generating power |
Dec. 1, 1998 |
| 5840175 |
Process oils and manufacturing process for such using aromatic enrichment with extraction followed by single stage hydrofinishing |
Nov. 24, 1998 |
| 5811607 |
Composite shingle particle salvage system |
Sep. 22, 1998 |
| 5804060 |
Method of and apparatus for producing power in solvent deasphalting units |
Sep. 8, 1998 |
| 5736030 |
Process for manufacturing fine particles of pitch with a high softening point |
Apr. 7, 1998 |
| 5728291 |
Demetallation - high carbon conversion process, apparatus and asphalt products |
Mar. 17, 1998 |
| 5720871 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers |
Feb. 24, 1998 |
| 5711856 |
Asphalt extracting apparatus |
Jan. 27, 1998 |
| 5601697 |
Demetallation-High carbon conversion process, apparatus and asphalt products |
Feb. 11, 1997 |
| 5562816 |
Tar dissolution process |
Oct. 8, 1996 |
| 5540832 |
Process for producing solvated mesophase pitch and carbon artifacts therefrom |
Jul. 30, 1996 |
| 5538621 |
Solvated mesophase pitches |
Jul. 23, 1996 |
| 5538621 |
Solvated mesophase pitches |
Jul. 23, 1996 |
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