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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts661. ------. [FISCHER, E., AND DONATH, B.] [Synthetic Hydrocarbons.] French Patent 825,379, Mar. 2, 1938. Chem. Abs., vol. 32,1938, p. 6256. In making hydrocarbons from CO, CH4, C2H6, and other gases containing much C and H2 by combination with H2, very high pressures are used. The pressure increases in at least 5 stages from atm. up to 5,000 atm. Describes apparatus. See also British Patent 479,931 (abs. 660). |