| Patent Number |
Title Of Patent |
Date Issued |
| 4492588 |
Method for removing sulfur from fossil fuels |
January 8, 1985 |
| A process for removal of sulfur from fossil fuels, such as coal, lignite, peat and fuel oil. The process includes the oxidative treatment of the fuel at or about ambient temperature, followed by a wash with a dilute basic aqueous solution of a basic compound of alkali metal or alkaline |
| 4388171 |
Supercritical multicomponent solvent coal extraction |
June 14, 1983 |
| The yield of organic extract from the supercritical extraction of coal with larger diameter organic solvents such as toluene is increased by use of a minor amount of from 0.1 to 10% by weight of a second solvent such as methanol having a molecular diameter significantly smaller than the |
| 4378022 |
Energy-frequency-time heart sound analysis |
March 29, 1983 |
| A method for determining the operability status of heart valves IN VIVO. Accoustical data emanating from a heart valve to be analyzed is gathered. The data are divided into time slices, and the power, energy, and frequency relations for each time slice are calculated. The energy ratio |
| 4334888 |
Coal desulfurization |
June 15, 1982 |
| A method for enhancing solubilizing mass transport of reactive agents into and out of carbonaceous materials, such as coal. Solubility parameters of mass transfer and solvent media are matched to individual peaks in the solubility parameter spectrum of coals to enhance swelling and/or |
| 4325707 |
Coal desulfurization by aqueous chlorination |
April 20, 1982 |
| A method of desulfurizing coal is described in which chlorine gas is bubbled through an aqueous slurry of coal at low temperature below 130 degrees C., and at ambient pressure. Chlorinolysis converts both inorganic and organic sulfur components of coal into water soluble compounds which |
