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Class Information
Number: 208/435
Name: Mineral oils: processes and products > By treatment of solid mineral, e.g., coal liquefaction, etc. > Including contact with extraneous additive other than hydrogen, e.g., solvent, etc. > Additive is specified catalyst or liquid solvent or dispersant
Description: Subject matter in which the additive is claimed to be a catalyst for a chemical reaction or a liquid which is claimed to dissolve or disperse at least one other material in the process.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7594996 |
Petroleum recovery and cleaning system and process |
Sep. 29, 2009 |
| 7357857 |
Process for extracting bitumen |
Apr. 15, 2008 |
| 7338593 |
Drilling fluid |
Mar. 4, 2008 |
| 7264711 |
Process for converting oil shale into petroleum |
Sep. 4, 2007 |
| 6156946 |
Biological activation of aromatics for chemical processing and/or upgrading of aromatic compounds, petroleum, coal, resid, bitumen and other petrochemical streams |
Dec. 5, 2000 |
| 6036849 |
Process for the removal of hydrocarbons from soils |
Mar. 14, 2000 |
| 5936134 |
Method for obtaining storable products of calorific energy and synthetical oils, by processing waste rubber materials with coal |
Aug. 10, 1999 |
| 5856600 |
Production process of depolymerized natural rubber |
Jan. 5, 1999 |
| 5811607 |
Composite shingle particle salvage system |
Sep. 22, 1998 |
| 5573556 |
Conversion of solid carbonaceous material using polyoxoanions |
Nov. 12, 1996 |
| 5496464 |
Hydrotreating of heavy hydrocarbon oils in supercritical fluids |
Mar. 5, 1996 |
| 5492618 |
Recovery of hard acids and soft bases from decomposed coal |
Feb. 20, 1996 |
| 5489376 |
Recovery of hard acids and soft bases from decomposed coal |
Feb. 6, 1996 |
| 5489377 |
Recovery of hard acids and soft bases from decomposed coal |
Feb. 6, 1996 |
| 5454934 |
Coal liquefaction using atomically dispersed metals |
Oct. 3, 1995 |
| 5368723 |
Method of and apparatus of producing low boiling point hydrocarbon oil from waste plastics or waste rubbers |
Nov. 29, 1994 |
| 5360537 |
Apparatus and method for retorting oil shale and like materials |
Nov. 1, 1994 |
| 5338442 |
Process for converting and upgrading organic resource materials in aqueous environments |
Aug. 16, 1994 |
| 5336395 |
Liquefaction of coal with aqueous carbon monoxide pretreatment |
Aug. 9, 1994 |
| 5298157 |
Coal depolymerization utilizing hard acid/soft base |
Mar. 29, 1994 |
| 5296133 |
Low ash coal products from depolymerized coal |
Mar. 22, 1994 |
| 5294349 |
Coal depolymerization and hydroprocessing |
Mar. 15, 1994 |
| 5277796 |
Pretreating oil shale with organic acid to increase retorting yield and process efficiency |
Jan. 11, 1994 |
| 5256278 |
Direct coal liquefaction process |
Oct. 26, 1993 |
| 5248413 |
Process for removing sulfur and producing enhanced quality and environmentally acceptable products for energy production from coal |
Sep. 28, 1993 |
| 5200063 |
Coal hydroconversion process comprising solvent enhanced pretreatment with carbon monoxide |
Apr. 6, 1993 |
| 5151173 |
Conversion of coal with promoted carbon monoxide pretreatment |
Sep. 29, 1992 |
| 5128017 |
Single-step coal liquefaction process |
Jul. 7, 1992 |
| 5110450 |
Coal extract hydroconversion process comprising solvent enhanced carbon monoxide pretreatment |
May. 5, 1992 |
| 5091076 |
Acid treatment of kerogen-agglomerated oil shale |
Feb. 25, 1992 |
| 5061363 |
Method for co-processing waste rubber and carbonaceous material |
Oct. 29, 1991 |
| 5017282 |
Single-step coal liquefaction process |
May. 21, 1991 |
| 5015366 |
Process and apparatus for coal hydrogenation |
May. 14, 1991 |
| 5013428 |
Recovery of oil from a shale containing the same |
May. 7, 1991 |
| 5009772 |
Solvent extraction process |
Apr. 23, 1991 |
| 5009770 |
Simultaneous upgrading and dedusting of liquid hydrocarbon feedstocks |
Apr. 23, 1991 |
| 4954246 |
Slurry-phase gasification of carbonaceous materials using ultrasound in an aqueous media |
Sep. 4, 1990 |
| 4909928 |
Coating of solid carbonaceous material with hydrocarbon liquid in process utilizing water containing system for receiving such carbonaceous material therethrough |
Mar. 20, 1990 |
| 4839030 |
Coal liquefaction process utilizing coal/CO.sub.2 slurry feedstream |
Jun. 13, 1989 |
| 4828031 |
In situ chemical stimulation of diatomite formations |
May. 9, 1989 |
| 4822481 |
Recovery of heavy oil |
Apr. 18, 1989 |
| 4818374 |
Process for converting coal to an oil fraction |
Apr. 4, 1989 |
| 4804459 |
Process for upgrading tar sand bitumen |
Feb. 14, 1989 |
| 4798668 |
Extraction of hydrocarbon-containing solids |
Jan. 17, 1989 |
| 4747938 |
Low temperature pyrolysis of coal or oil shale in the presence of calcium compounds |
May. 31, 1988 |
| 4703798 |
In situ method for recovering hydrocarbon from subterranean oil shale deposits |
Nov. 3, 1987 |
| 4695373 |
Extraction of hydrocarbon-containing solids |
Sep. 22, 1987 |
| 4692239 |
Method of recovering hydrocarbon from oil shale |
Sep. 8, 1987 |
| 4673484 |
Amphiphilic phase behavior separation of carboxylic acids/hydrocarbon mixtures in recovery of oil from tar sands or the like |
Jun. 16, 1987 |
| 4668380 |
Method for treating shale |
May. 26, 1987 |
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