3030. ----- [RUHRCHEMIE, A. G.] [Process for Increasing the Olefin Content of Hydrocarbon Mixtures.] German Patent Appl. R 115,152, R 657, filed Jan. 16, 1943 (Cl. IV d-23 b). FIAT Reel K-30, frames 7,999-8,003; PB 73,587; TOM Reel 36, bag 3,454, item

PATENTS

3030. ----- [RUHRCHEMIE, A. G.] [Process for Increasing the Olefin Content of Hydrocarbon Mixtures.] German Patent Appl. R 115,152, R 657, filed Jan. 16, 1943 (Cl. IV d-23 b). FIAT Reel K-30, frames 7,999-8,003; PB 73,587; TOM Reel 36, bag 3,454, item 36, 4 pp.; TOM Reel 177, frames 1,498-1,501; Meyer Transl. PC-S-V, Oxo, vol. 1, chap. 7, 1948, p. 14.

301275°--55—PT. II-----19

Product from the catalytic hydrogenation of CO is subjected to close fractionation, and the narrow molecular fractions thus obtained are distilled further and separated into olefin-rich and olefin-poor fractions, the former being collected into a mixture consisting in general of a high % of olefins.