2268.     ---------------.  [MICHAELIS, P.]  [Development of the Conversion of Coal.  III.  Coal as a Raw Material for Gaseous Products.]  Oel u. Kohle, vol. 37, 1941, pp. 949-955; Chem. Abs., vol. 37, 1943, p. 3584.

        Review of 79 German papers on coal-gas production, processing, and uses, published from 1926-41, outlines briefly the production of city gas; such gas purification methods as the Alkazid, Thylox, Polythionate, and Katasulf processes; recovery of H₂, S, and NH₃ from coal gas; production of water gas; and production of hydrocarbons and O-containing organic compounds by the Fischer-Tropsch process.