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PATENT 3435. ----- [SOCIÉTÉ NATIONALE DE RECHERCHES SUR LE TRAITEMENT DES COMBUSTIBLES.] [Purifying Synthesis Gas.] French Patent 34,348, May 4, 1929; appl. filed Sept. 21, 1927. Chem. Zentralb., 1929, II, p. 1250. Gas mixtures containing CO and H2 are purified from carbonyl sulfide, Fe, and Ni-carbonyls by washing with a solution of NaOH in MeOH or H2O at ordinary or raised pressure. See abs. 63, 64. |