3903.  WENZEL, ---,WINTZER,, ---, AND BREYWISCH,---. (I. G. Farbenindusrie A. G.). [Separation of the Synthesis Products of Carbon Monoxide Conversion.] German Patent Appl. I 74,241, OZ 13,974, filed Feb. 4, 1943 (Cl. IV d-12 o). FIAT Reel 172, frame 363; PB 25,616; TOM Reel 19,, item 142, frames 1,665-1,674; Transl. TOM Reel 243; Meyer Transl. PC-S-II, Fischer-Tropsch, vol. 3, 1948, chap. 116, p. 28.

In producing oxygenated compounds by the hydrogenation of CO in presence of Fe catalysts at raised pressure, the low-boiling products are separated by adsorption or absorption agents which are them regenerated by steam. After condensation of the steam and the low-boiling synthesis products, the aqueous layer of the condensate is treated for the recovery of the oxygenated compounds by distillation or extraction.