81. ------. [BADISCHE ANILIN- UND SODA-FABRIK] Hydrogenation or Dehydrogenation of Compounds Containing Carbon. British Patent 2,306, Jan. 28, 1914. Chem. Abs., vol. 10, 1916. p. 287.

Process is effected in the presence of a catalyst consisting of Fe, Ni, Co, or Cu, intimately mixed with 1 or more of the following promoters: Oxides or O-containing salts of earth metals, rare-earth metals, Be, Mg, Mn, U, V, Nb, Ta, Cr, Ti, or B: difficulty soluble phosphates, molybdates, tungstates, or selenates, of the alkaline earths or of Li, or O-containing reduction products of these compounds. The proportion of the promoter in the catalytic mixture may be as small as 1% or less. The catalytic mixtures may be employed in the hydrogenation of fats or fatty acids, the conversion of phenol into cyclohexanol, the reduction of nitrobenzene to aniline, and the conversion of C oxides into hydrocarbons. These processes may be effected under ordinary or increased pressure. According to an example, a solution containing Ni and Be nitrates is precipitated with NaOH, the NiO is reduced with a mixture of CO and H₂ or H₂ alone, and the product is used to convert a mixture of CO and H₂ into CH₄.