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Class Information
Number: 208/402
Name: Mineral oils: processes and products > By treatment of solid mineral, e.g., coal liquefaction, etc. > Using electrical, magnetic or wave energy
Description: Subject matter which includes a step of (1) passing an electric current directly through a feedstock, intermediate, product or other material used in process or (2) subjecting any material in the process to an electric or magnetic field or (3), directly applying radiant energy to the material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7378012 |
Method for reforming lubricating oil used in lubricating an engine with a sliding region |
May. 27, 2008 |
| 5911885 |
Application of microwave radiation in a centrifuge for the separation of emulsions and dispersions |
Jun. 15, 1999 |
| 5902915 |
Process for producing liquid hydrocarbons |
May. 11, 1999 |
| 5055180 |
Method and apparatus for recovering fractions from hydrocarbon materials, facilitating the removal and cleansing of hydrocarbon fluids, insulating storage vessels, and cleansing storage vessel |
Oct. 8, 1991 |
| 4954246 |
Slurry-phase gasification of carbonaceous materials using ultrasound in an aqueous media |
Sep. 4, 1990 |
| 4790910 |
Apparatus for extracting hydrocarbons from tar sands |
Dec. 13, 1988 |
| 4772379 |
Extraction and liquefaction of fossil fuels using gamma irradiation and solvents |
Sep. 20, 1988 |
| 4495057 |
Combination thermal and solvent extraction oil recovery process and apparatus |
Jan. 22, 1985 |
| 4487683 |
Acetylene from coal and an electric arc |
Dec. 11, 1984 |
| 4477332 |
Solubilization of carbonaceous material |
Oct. 16, 1984 |
| 4443322 |
Continuous process and apparatus for separating hydrocarbons from earth particles and sand |
Apr. 17, 1984 |
| 4430175 |
Process for the electrochemical conversion of coal and use of the reaction products |
Feb. 7, 1984 |
| 4430160 |
Process for enhancing the thermal decomposition of solid matter |
Feb. 7, 1984 |
| 4428821 |
Oil shale extraction process |
Jan. 31, 1984 |
| 4419214 |
Process for the recovery of shale oil, heavy oil, kerogen or tar from their natural sources |
Dec. 6, 1983 |
| 4408999 |
Coal and oil shale beneficiation process |
Oct. 11, 1983 |
| 4401553 |
System and method for lowered hydrogen sulfide emissions from oil shale |
Aug. 30, 1983 |
| 4388179 |
Magnetic separation of mineral particles from shale oil |
Jun. 14, 1983 |
| RE31241 |
Method and apparatus for controlling fluency of high viscosity hydrocarbon fluids |
May. 17, 1983 |
| 4382850 |
Solar retorting of oil shale |
May. 10, 1983 |
| 4376033 |
Method for recovering shale oil from shale |
Mar. 8, 1983 |
| 4376034 |
Method and apparatus for recovering carbon products from oil shale |
Mar. 8, 1983 |
| 4359451 |
Desulfurization of carbonaceous materials |
Nov. 16, 1982 |
| 4358629 |
Method of producing acetylene from coal |
Nov. 9, 1982 |
| 4344839 |
Process for separating oil from a naturally occurring mixture |
Aug. 17, 1982 |
| 4332667 |
Liquefaction process for solid carbonaceous materials containing alkaline earth metal humates |
Jun. 1, 1982 |
| 4326945 |
Coal liquefaction process |
Apr. 27, 1982 |
| 4304656 |
Method for extracting an oil content from oil shale |
Dec. 8, 1981 |
| 4252189 |
Vibratory method for minimg shale oil or the like |
Feb. 24, 1981 |
| 4204923 |
Method and apparatus for recovery of hydrocarbons from tar-sands |
May. 27, 1980 |
| 4187167 |
Method and apparatus for the extraction and recovery of hydrocarbons from petroleum bearing materials |
Feb. 5, 1980 |
| 4180452 |
Method for hydrogenation of coal |
Dec. 25, 1979 |
| 4169128 |
Coal liquefaction apparatus |
Sep. 25, 1979 |
| 4151067 |
Method and apparatus for acquisition of shale oil |
Apr. 24, 1979 |
| 4135579 |
In situ processing of organic ore bodies |
Jan. 23, 1979 |
| 4136014 |
Method and apparatus for separation of bitumen from tar sands |
Jan. 23, 1979 |
| 4118282 |
Process and apparatus for the destructive distillation of high molecular weight organic materials |
Oct. 3, 1978 |
| 4108759 |
Process and apparatus for converting coal into oil and other coal derivatives |
Aug. 22, 1978 |
| 4090945 |
Method of operating an oil shale kiln |
May. 23, 1978 |
| 4054505 |
Method of removing bitumen from tar sand for subsequent recovery of the bitumen |
Oct. 18, 1977 |
| 4054506 |
Method of removing bitumen from tar sand utilizing ultrasonic energy and stirring |
Oct. 18, 1977 |
| 4052293 |
Method and apparatus for extracting oil from hydrocarbonaceous solid material |
Oct. 4, 1977 |
| 4010089 |
Reacting coal |
Mar. 1, 1977 |
| 4010090 |
Process for converting naturally occurring hydrocarbon fuels into gaseous products by an arc heater |
Mar. 1, 1977 |
| 3985637 |
Process for separating and recovering liquid products from solid and liquid substances |
Oct. 12, 1976 |
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