2294a.     ---------------.  [MITTASCH, A.]  Early Studies of Multicomponent Catalysts.  Advances in Catalysis.  Academic Press, Inc., New York, 1950, vol. 2, pp. 81-104.

                      Historical development of multicomponent catalysts is given.  Their activity in NH₃ synthesis, catalytic production of H₂, hydrogenation of CO to CH₄, hydrogenation of unsaturated organic compounds, production of organic compounds by catalytic reduction of CO with H₂ under pressure, and catalytic oxidations is discussed.  52 refs. listed.