PATENT

3411. ----- [SOCIÉTÉ FRANCAISE DE CATALYSE GÉNÉRALISÉE]  [Catalytic Apparatus.]  French Patent 787,896, Sept. 30, 1935.  Chem. Abs., vol. 30, 1936, p. 1268.

Space in which the gaseous reaction mixture circulates is divided into a number of narrow rectilinear conduits, for example, the gas passes through a number of long tubes and returns along the spaces between these tubes and outer surrounding tubes, the catalyst being in these spaces.