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Class Information
Number: 208/430
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. > Contact with additive, followed by chemical conversion
Description: Subject matter wherein a chemical conversion step is performed after a feed or intermediate is contacted with an additive, e.g., mixing followed by conversion, extraction followed by conversion of extract, etc.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7264711 |
Process for converting oil shale into petroleum |
Sep. 4, 2007 |
| 5846385 |
Process and apparatus for energy recovering through waste classification and calcination |
Dec. 8, 1998 |
| 5744026 |
Catalyst system and process for benzyl ether fragmentation and coal liquefaction |
Apr. 28, 1998 |
| 5676711 |
Oil conversion process |
Oct. 14, 1997 |
| 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 |
| 5256278 |
Direct coal liquefaction process |
Oct. 26, 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 |
| 5135871 |
Method for isolating kerogen from a mineral sample in a pressurized reaction cell |
Aug. 4, 1992 |
| 5110450 |
Coal extract hydroconversion process comprising solvent enhanced carbon monoxide pretreatment |
May. 5, 1992 |
| 5015366 |
Process and apparatus for coal hydrogenation |
May. 14, 1991 |
| 4994174 |
Process and system for low-temperature carbonization of oil shale, oil sands or similar oil-bearing solids |
Feb. 19, 1991 |
| 4963250 |
Kerogen agglomeration process for oil shale beneficiation using organic liquid in precommunication step |
Oct. 16, 1990 |
| 4846963 |
Ionic liquefaction process |
Jul. 11, 1989 |
| 4778585 |
Two-stage pyrolysis of coal for producing liquid hydrocarbon fuels |
Oct. 18, 1988 |
| 4764270 |
Simultaneous upgrading of tar sand bitumen and coal by corefining |
Aug. 16, 1988 |
| 4747938 |
Low temperature pyrolysis of coal or oil shale in the presence of calcium compounds |
May. 31, 1988 |
| 4702820 |
Pretreatment by alkaline wetting and holding at temperature of natural materials having an argillaceous gangue containing combustible elements |
Oct. 27, 1987 |
| 4692239 |
Method of recovering hydrocarbon from oil shale |
Sep. 8, 1987 |
| 4689139 |
Process for the hydrogenation of coal |
Aug. 25, 1987 |
| 4668380 |
Method for treating shale |
May. 26, 1987 |
| 4663028 |
Process of preparing a donor solvent for coal liquefaction |
May. 5, 1987 |
| 4617105 |
Coal liquefaction process using pretreatment with a binary solvent mixture |
Oct. 14, 1986 |
| 4609455 |
Coal liquefaction with preasphaltene recycle |
Sep. 2, 1986 |
| H69 |
Solvent treatment of coal for improved liquefaction |
May. 6, 1986 |
| 4584088 |
Method for treating shale |
Apr. 22, 1986 |
| RE32120 |
Hydrotreating supercritical solvent extracts in the presence of alkane extractants |
Apr. 22, 1986 |
| 4576707 |
Process for beneficiating coal |
Mar. 18, 1986 |
| 4576708 |
Beneficiation of shale kerogen and its conversion into shale oil |
Mar. 18, 1986 |
| 4566965 |
Removal of nitrogen and sulfur from oil-shale |
Jan. 28, 1986 |
| 4522700 |
Coal liquefaction |
Jun. 11, 1985 |
| 4521293 |
Oil recovery |
Jun. 4, 1985 |
| 4518480 |
Process for the efficient utilization of solvent modified oil shales |
May. 21, 1985 |
| 4501651 |
Process for treating oil shale with a mild oxidant |
Feb. 26, 1985 |
| 4495054 |
Method of operating a blast furnace to extract carbonaceous oil and gas from bituminous materials |
Jan. 22, 1985 |
| 4491511 |
Two-stage coal liquefaction process |
Jan. 1, 1985 |
| 4487684 |
Process for hydrogenation of coal |
Dec. 11, 1984 |
| 4473120 |
Method of retorting oil shale using a geothermal reservoir |
Sep. 25, 1984 |
| 4454017 |
Process for recovering hydrocarbon and other values from shale oil rock |
Jun. 12, 1984 |
| 4448665 |
Use of ammonia to reduce the viscosity of bottoms streams produced in hydroconversion processes |
May. 15, 1984 |
| 4447310 |
Production of distillates by the integration of supercritical extraction and gasification through methanol to gasoline |
May. 8, 1984 |
| 4443330 |
Catalyst activity in coal liquid upgrading |
Apr. 17, 1984 |
| 4437974 |
Coal liquefaction process |
Mar. 20, 1984 |
| 4431511 |
Enhanced removal of nitrogen and sulfur from oil-shale |
Feb. 14, 1984 |
| 4422922 |
Coal liquefaction and hydroprocessing of petroleum oils |
Dec. 27, 1983 |
| 4421632 |
Process for hydrogenation of coal |
Dec. 20, 1983 |
| 4420930 |
Process for operating a furnace or a combustion engine |
Dec. 20, 1983 |
| 4417972 |
Recovery of coal liquefaction catalysts |
Nov. 29, 1983 |
| 4411767 |
Integrated process for the solvent refining of coal |
Oct. 25, 1983 |
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