http://pec.lib.wvu.edu/record/P8001952Carbide takes the hex out of coal.Journal article reprint from: <em>Chemical and engineering news</em>, 1952: May 12. "A CEN staff report." "Compliments of Carbide and Carbon Chemicals Company, a division of Union Carbide and Carbon Corporation." Carbide.Coal liquefaction--West Virginia.Carbide and Carbon Chemicals Company (Institute, W. Va.)Hydrogenation.14256