PATENTS

2796. ----- [ROELEN, O.]   (Ruhrchemie A. G.).  [Oxo Process.]  French Patent 860,289, Jan. 10, 1941; appl. filed Sept 18, 1939.  Chem. Zentralb., 1941, II, p. 536; Kainer, no date, pp. 267-268.

            Reaction takes place under pressure, at least 20 atm., at raised temperature 50°-200° in presence of a solvent.

R-CH=CH-R+CO+H₂→R-CH₂-CH-R

                                                        ↓

                                                     CHO

2R-CH=CH-R+CO+H₂→R-CH₂-CRH-CO-CRH-CH₂R

By passing C₂H₄ over a Co-Th catalyst at 90°-100° and 100 atm, pressure 40% propionaldehyde 40%, di-ethylketone 20% and higher boiling aldehydes and ketones and oxygenated compounds are obtained.