PATENTS

      87.              ------.  [BADISCHE ANILIN- UND SODA-FABRIK]  [Methane From Carbon Monoxide and Hydrogen.]  German Patent 390,861, Feb. 25, 1924; appl. filed Dec. 2, 1922.  Chem. Zentralb., 1924, I. p. 2396.

Any H₂ or CO remaining after the conversion is removed by physical means such as deep cooling or absorption through porous bodies or by selective oxidation.  This is an addition to German Patent 366,791 (abs. 2361).