C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/495.1
C07C 69/24 (2006.01) B01J 23/94 (2006.01) B01J 31/02 (2006.01) C07C 67/00 (2006.01) C07C 67/04 (2006.01) C07C 67/38 (2006.01) C07C 69/02 (2006.01)
Patent
CA 1157040
ABSTRACT OF THE DISCLOSURE . In a method for producing fatty acid esters by reacting olefins, alkanols, and carbon monoxide in the presence of a cobalt containing catalyst and an activator consisting of pyridine, a non-ortho-substituted alkyl-pyridine, or mixtures thereof, the improvement comprising separating the reaction discharge carefully, after treatment with an oxygen containing gas, in two distilling stages, the first of which operates at a higher pressure than the second, into a cobalt free distillate and a concentrate arising as a sump of the second distilling stage and containing all of the cobalt used as the catalyst, the cobalt containing concentrate being taken up in pyridine, a non-ortho-substituted alkyl-pyridine or mixtures thereof, the suspension thus obtained being treated with a mixture of carbon monoxide and hydrogen, at a temperature of between 100 and 250°C and a pressure of at least 50 bars, and the product of the treatment being returned to the fatty acid ester synthesis.
380491
Hofmann Peter
Muller Wolfgang H.e.
Chemische Werke Huls Aktiengesellschaft
Fetherstonhaugh & Co.
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