| 摘要 |
A process for reducing the sulfur and ash content of coal comprising the steps of: (1) contacting coal particles containing ash and iron pyrite mineral matter with a promoting amount of at least one conditioning agent capable of modifying or altering the existing surface characteristics of the pyrite under conditions to effectuate alteration or modification of at least a portion of the contained pyritic sulfur; (2) separating the coal particles from at least a portion of the pyritic sulfur while surface characteristics are altered or modified; and (3) recovering coal particles wherein the coal exhibits reduced sulfur and ash content. |
