PATENTS

      1538.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Recovery of Volatile Solvents.]  British Patent 302,297.  Sept. 12, 1927.  Chem. Zentralb., 1929. I. p. 1645: Chem. Abs., vol. 23, 1929. p. 4282.

            Products having a b. p.>200º obtained as byproducts in the catalytic hydrogenation of C oxides to form MeOH are used for washing gases and vapors such as result in the production of lacquers, artificial silk, or in cleaning fabrics.