3905.  ----- [WENZEL, ---,WINTZER,, ---, AND REISINGER,---.] (I. G. Farbenindusrie A. G.). [Conversion of Carbon Monoxide With Hydrogen to Liquid and Solid Oxygenated Organic Compounds.] German Patent Appl. I 70,503, filed Sept. 25, 1941; OZ 13,010 (Cl. IV d-12 o). FIAT Reel 172, frames 250-251; PB 25,616; TOM Reel 19, item 138, frames 1,619-1,630.

Gas containing at least 30% CO is converted at 180°-230° and ordinary or increased pressure, preferably 12-25 atm., over an Fe catalyst which has been reduced at a gas velocity of >800 m.³ per m.³ of catalyst 370°-800°. The temperature of conversion is maintained such that the content of CO₂ in the tail gas should not amount to > 15%. The Fe catalyst may be of the sintered, skeleton or precipitated type. The conversion is carried out in 4 furnaces in series. The contact time of synthesis gas on the catalyst is generally 4-400 sec. calculated on all stages and at the preferred hourly throughput of 70-500 m.³ of gas per m.³ of catalyst space, the depth of catalyst bed being 0.5-5 m. The liquid and solid products contain 42% alcohol, the fraction b. 230°-350°, 51.5%.