An improved process for the smelting of iron ores

摘要

148,920. Phoenix Akt.-Ges. f³r Bergbau, und H³ttenbetrib Abteilung Hoerder Verein. March 10, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Treating ores to remove undesired constituents. -Iron ores are subjected to a preliminary heating to drive off water present in the form of moisture or contained hydrates, in order to avoid disintegration during subsequent smelting. The heating may be effected by a current of warm air or gas.