Chemical Removal of Pyritic Sulfur from Coal - Advances in .Jul 22, 2009 . A new approach for the chemical removal of pyritic sulfur from coal is described. The process is based on the discovery that aqueous ferric salts selectively oxidize the pyritic sulfur in coal to chemical forms which can be removed by vaporization, steam, or solvent extraction. Data for removal of the pyritic.الفحم إزالة الكبريت السلطة,Removal of Organic Sulfur from Coal by Reaction with Supercritical .Jul 23, 2009 . The processing of high organic sulfur content coals with methanol and ethanol as supercritical solvents has resulted in reduction in sulfur concentrations exceeding 50%. Since the total sulfur removed exceeds the mineral sulfur content of the coal processed, it is evident that organic sulfur is being removed.
الفحم إزالة الكبريت السلطة