3678. ----- [STUDIEN-UND VERWERTUNGS-G. M. B. H.] [Long-Chain Hydrocarbons.] German Patent 676,919, June 19, 1939; appl. St 52,990 filed Jan. 3, 1935 (Cl. 12 o-1.03). FIAT Reel AA ii, frames 3,421-3,423; PB 70,273; Chem. Abs., vol. 33, 1939, p. 7310.

PATENT

3678. ----- [STUDIEN-UND VERWERTUNGS-G. M. B. H.] [Long-Chain Hydrocarbons.] German Patent 676,919, June 19, 1939; appl. St 52,990 filed Jan. 3, 1935 (Cl. 12 o-1.03). FIAT Reel AA ii, frames 3,421-3,423; PB 70,273; Chem. Abs., vol. 33, 1939, p. 7310.

In the catalytic reduction of CO by the aid of superheated steam or salt solutions to form long chain hydrocarbons, tubes of elliptical, rhomboidal or rectangular cross sections are used for the circulating system. Addition to German Patent 672,731 (abs. 693).