840. GRASSNER, F. (I. G. Farbenindustrie A. G.). [Freeing Gases Containing Carbon Monoxide From Volatile Iron Compounds.] German Patent 499,652, June 16, 1925. Schmidt, J. Das Kohlenoxyd. Akad. Verlagsgesell., Leipzig 1950. p. 214: Chem. Abs., vol. 24

Patent Abstracts

840. GRASSNER, F. (I. G. Farbenindustrie A. G.). [Freeing Gases Containing Carbon Monoxide From Volatile Iron Compounds.] German Patent 499,652, June 16, 1925. Schmidt, J. Das Kohlenoxyd. Akad. Verlagsgesell., Leipzig 1950. p. 214: Chem. Abs., vol. 24, 1930. p. 4562.

Gases containing CO (except MeOH) are freed from volatile Fe compounds, especially Fe(CO)_x, by leading them over burned lime, BaO, SrO, Al₂O₃, MgO, magnesite, pumice stone, fragments of earthenware, diatomacetous masses or active H₂SiO₃at high temperatures.

See abs. 2428, 2429.