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         230.        ------.  [BRAUNKOHLE-BENZIN, A. G.]  [Synthesis-Gas Purification.]  German Patent Appl. B 175,954, filed Oct. 23, 1936 (Cl. IV b-12 e).  PB Rept. 412, May 15, 1945.

Desulferizing synthesis gas by contact with an oxidizing agent, such as a nitrate, chlorate, or permanganate, on a support such as active C or silica gel at a temperature of about 80º C.