2859. -----[Ruhrchemie A.G.] [Catalyst for Synthesis of Gasoline From Carbon Monoxide and Hydrogen.] Italian Patent 349,478, Mar. 31, 1937. Chem Zentralb., 1938, II, p.3774.

Basic Mg carbonate is used as the carrier for the known Co-Th-Mg catalysts. The catalysts are highly active and can be easily regenerated. After extraction of the paraffin they are washed out with cold H₂O and CO₂, whereby all the Mg goes into solution as Mg(CO₃)₂. From this the basic salt is again precipitated by heating the solution and flowing steam there-through. The other constituents are dissolved in HNO₃and precipitated with NaOH, and the hot precipitate is again mixed with the precipitated basic Mg carbonate.