2697. PINTIAUX, O. (Sociètè de Produits Chimiques et Engrais d’Auby). Contact Tower for Conversion of Carbon Monoxide Under Pressure. United States Patent 2,530,314, Nov. 14, 1950; appl. filed Mar. 16, 1945, Serial No. 583,122, in France June 9, 1943; 5 claims (Cl. 23-288).

Tower is made up of a series of superposed baskets receiving the catalyst and is also provided with a double series of heat exchange tubes. It is chiefly characterized by an inner lining that may be dismantled and removed. 4 United States patents cited.