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Class Information
Number: 208/432
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. > With specified circulation procedure in contact zone
Description: Subject matter wherein a specified agitation or circulation pattern, maintained by a fluid within a single contact zone, is claimed, or in which the location of streams associated with the contact zone are defined to establish a specific circulation pattern, e.g., use of a rotating kiln, etc.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6245216 |
Method for fluidizing tars |
Jun. 12, 2001 |
| 6004455 |
Solvent-free method and apparatus for removing bituminous oil from oil sands |
Dec. 21, 1999 |
| 5269910 |
Method of coil liquefaction by hydrogenation |
Dec. 14, 1993 |
| 5264118 |
Pipeline conditioning process for mined oil-sand |
Nov. 23, 1993 |
| 5156734 |
Enhanced efficiency hydrocarbon eduction process and apparatus |
Oct. 20, 1992 |
| 5120429 |
Co-processing of carbonaceous solids and petroleum oil |
Jun. 9, 1992 |
| 5008005 |
Integrated coke, asphalt and jet fuel production process and apparatus |
Apr. 16, 1991 |
| 4798668 |
Extraction of hydrocarbon-containing solids |
Jan. 17, 1989 |
| 4737267 |
Oil shale processing apparatus and method |
Apr. 12, 1988 |
| 4695373 |
Extraction of hydrocarbon-containing solids |
Sep. 22, 1987 |
| 4692238 |
Solvent extraction of organic oils and solvent recovery |
Sep. 8, 1987 |
| 4690732 |
Apparatus for shale oil retorting |
Sep. 1, 1987 |
| 4683063 |
Method for carrying out extractions in subterranean well |
Jul. 28, 1987 |
| 4597852 |
Static mixer retorting of oil shale |
Jul. 1, 1986 |
| RE32120 |
Hydrotreating supercritical solvent extracts in the presence of alkane extractants |
Apr. 22, 1986 |
| 4545892 |
Treatment of primary tailings and middlings from the hot water extraction process for recovering bitumen from tar sand |
Oct. 8, 1985 |
| 4539093 |
Extraction process and apparatus for hydrocarbon containing ores |
Sep. 3, 1985 |
| 4490237 |
Process for recovering heat from the combustion of residual carbon in oil depleted shale |
Dec. 25, 1984 |
| 4481099 |
Solvent extraction method |
Nov. 6, 1984 |
| 4477332 |
Solubilization of carbonaceous material |
Oct. 16, 1984 |
| 4470899 |
Bitumen recovery from tar sands |
Sep. 11, 1984 |
| 4457826 |
Prevention of deleterious deposits in a coal liquefaction system |
Jul. 3, 1984 |
| 4410416 |
Split hub wheel apparatus and use of same for shale oil retorting |
Oct. 18, 1983 |
| 4401551 |
Solvent extraction method |
Aug. 30, 1983 |
| 4396489 |
Method and apparatus for deashing coal liquefaction effluents |
Aug. 2, 1983 |
| 4389300 |
Solvent extraction method |
Jun. 21, 1983 |
| 4387016 |
Method for extraction of bituminous material |
Jun. 7, 1983 |
| 4376693 |
Solid liquid extraction |
Mar. 15, 1983 |
| 4361476 |
Process and apparatus for recovery of oil from tar sands |
Nov. 30, 1982 |
| 4342639 |
Process to separate bituminous material from sand (Tar Sands) |
Aug. 3, 1982 |
| 4309269 |
Coal-oil slurry pipeline process |
Jan. 5, 1982 |
| 4303494 |
Continuous reaction/separation method for nucleated growth reactions |
Dec. 1, 1981 |
| 4248692 |
Process for the discharge of ash concentrate from a coal deashing system |
Feb. 3, 1981 |
| 4243511 |
Process for suppressing carbonate decomposition in vapor phase water retorting |
Jan. 6, 1981 |
| 4227990 |
Thermal cracking of retort oil |
Oct. 14, 1980 |
| 4199432 |
Staged turbulent bed retorting process |
Apr. 22, 1980 |
| 4189376 |
Solvent extraction process |
Feb. 19, 1980 |
| 4157245 |
Countercurrent plug-like flow of two solids |
Jun. 5, 1979 |
| 4140583 |
Processing of lignite for petrochemicals |
Feb. 20, 1979 |
| 4120775 |
Process and apparatus for separating coarse sand particles and recovering bitumen from tar sands |
Oct. 17, 1978 |
| 4116809 |
Deaerator circuit for bitumen froth |
Sep. 26, 1978 |
| 4111789 |
Recovery of hydrocarbon from dilution centrifuging tailings |
Sep. 5, 1978 |
| 4102775 |
Conversion process for solid, hydrocarbonaceous materials |
Jul. 25, 1978 |
| 4090957 |
System for separating soluble and insoluble coal products from a feed mixture |
May. 23, 1978 |
| 4075080 |
Coal liquefaction process with removal of agglomerated insolubles |
Feb. 21, 1978 |
| 4070267 |
Coal processing system for reducing the amount of insoluble coal products in a light fraction stream |
Jan. 24, 1978 |
| 4055480 |
Multi-phase separation methods and apparatus |
Oct. 25, 1977 |
| 4054506 |
Method of removing bitumen from tar sand utilizing ultrasonic energy and stirring |
Oct. 18, 1977 |
| 4039425 |
Method for preparing a coal slurry substantially depleted in mineral-rich particles |
Aug. 2, 1977 |
| 4036732 |
Tar sands extraction process |
Jul. 19, 1977 |
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