Abstract
AbstractThere are no technological barriers to an organic chemical industry based heavily on coal. The coal chemical industry dates from the late nineteenth century and was based on the byproduct of chemicals from coke ovens. These materials are totally inadequate in quantity to support a worldwide coal chemical industry. Alternative routes to chemicals from coal including solvent extraction, direct liquefaction, or Fischer-Tropsch technology are potentially suitable, but may produce very complex mixtures. Coal can be used to convert lime to calcium carbide, the raw material needed to make acetylene, another potential source of chemicals. Though not yet well-explored, the greatest potential could come from combining advances in molecular modeling with the principles of green chemistry to develop clean routes to specific, targeted products. Valuable trace elements, particularly the rare earth elements, could be extracted from coals or their ashes.
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