PATENTS

3273.            SCHILLER, J. C., BETHEA, S. R., AND MOSESMAN, M. A.  (Standard Oil Development Co.).  Process for Hydrogenation of Carbon Monoxide.  United States Patent 2,546,017, Mar. 20, 1951; appl. filed Dec. 11, 1948, Serial No. 64,744; 8 claims (Cl. 260-449.6).  Chem. Abs., vol. 45, 1951, p. 4430.

Catalytic material including a support highly resistant to disintegration is suspended in a mixture of H₂ and CO.  As the suspension is carried into the raection zone, a small quantity of catalytic material such as salts and oxides of Group VIII elements such as Fe, Co, Ni is added.  It may be added as an aqueous or alcoholic solution or as a suspension of the catalytic compound or as a finely divided powder suspended in a gas.  If it is added as a solution, it is pumped into the reactor at a number of points.  If it is added as a solid, it is blown into the reactor at a pressure higher than that within the reaction zone.  When it is added as a solution, the particles of inert support already within the reactor become coated with the catalytic compound.  When it is blown in, it is added to the support either as a mechanical mixture or as a deposit.  The amount of catalytic compound added may vary 0.1-10% of the supported material circulating in the system.  Usually 1-5% by weight will give good results.  9 United States patents cited.

SCHLECHT, L.  See abs. 783,2373, 2430, 2431.