PATENTS

      1524.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Purifying Products of Methanol Synthesis.]  Swiss Patent 136,373, no date.  Schmidt, J., Das Kohlenoxyd, Akad. Verlagsgesell., Leipzig. 1950, p. 218.

            Purification with oxidizing agents such as H₂O₂, NaOCl, KMnO₄, with addition of nonvolatile alkalies or organic bases and of halogen salts.

            See German Patent 508,953 (abs. 2379) and United States Patent 1,744,180 (abs. 3760).