PATENTS

      1500.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Production of Oxygenated Compounds.]  German Patent Appl. I 73,820. OZ 13,837. filed Dec. 12, 1942 (Cl. IV d-12 o).  FIAT Reel 169, frames 7,891-7,894: PB 25,613: TOM Reel 36. item 21, bag 3,454. 4 pp.: Meyer Transl. PC-S-V. Oxo. vol. 1, chap. 27, 1948. p. 66.

            In producing oxygenated compounds by the catalytic reaction of CO and H₂ with olefins with double bonds under raised temperature and pressure and in presence of Co catalysts, the formation of metal carbonyls is greatly suppressed by causing the reaction between the CO, H₂, and olefins to take place more rapidly than carbonyl can be formed.  This may be accomplished by increasing the active surface of contact between the reactants by various described means.  By such means conversion takes place very rapidly.  Example:  A slurry consisting of 97 parts of a cracked Fischer-Tropsch paraffin and 3 parts of a Co catalyst containing 35% Co and 65% kieselguhr is treated with lively stirring at 140º-155º with water gas for an average period of contact of 7 min.: the amount of gas being 180 m.3 per m.3 of liquid.  Olefin conversion is 97%.  The material from the converter is then hydrogenated at 190º.  The resulting alcohol is separated from the catalyst and the unreacted material by distillation.  The product, m. 14º, is of higher grade than that, m. 5º, which is obtained at a contact time of 30 min.