PATENT

3693. ----- [STUDIEN-UND VERWERTUNGS-G. M. B. H.]  [Purifying Gases.]  French Patent 784,337, July 22, 1935.  Chem. Abs., vol. 30, 1936, p. 272.

Compounds of S are removed from gases containing CO and H2 by using alkaline carbonates in amount of at least 5% in intimate mixture with oxides or hydroxides of Fe capable of reacting at temperatures < that at which accessory reactions with CO would take place (230°).