Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1990-01-25
1990-09-04
Gray, Bruce
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568855, C07C 2700
Patent
active
049546643
ABSTRACT:
A process for the catalytic hydrogenation of butterfat where non-deacidified butterfat is continuously reacted with hydrogen under pressures of from 20 to 300 bar and at temperatures of from 180.degree. to 250.degree. C. with molar ratios of hydrogen to fatty acid residue in the butterfat of from 10:1 to 500:1. The reaction is carried out over catalysts which contain from 30 to 40% by weight copper, from 23 to 30% by weight chromium, from 1 to 10% by weight manganese, from 1 to 10% by weight silicon, and from 1 to 7% by weight barium. The percentages by weight in each case are based on the total oxidic mass of the catalyst. Other transition metals, especially zirconium and cerium, are additionally incorporated into the catalyst. The metals in the catalyst are converted to their oxides by calcination. The catalyst is converted into shaped particulate or granulated elements with from 1 to 10% by weight of at least one binder in addition to 1 to 10% by weight graphite. The catalyst is activated with hydrogen or a hydrogen-containing gas mixture.
The reaction products include alcohols, oxo- and hydroxyfatty alcohols corresponding to the natural fatty acid composition of the butterfat and the desired, valuable product, propylene glycol. This process is advantageous since it eliminates the need for preseparation of the relatively short-chain fatty acids (or deacidification) of the butterfat prior to hydrogenation.
REFERENCES:
patent: 74814 (1868-02-01), Carduck et al.
patent: 3173959 (1965-03-01), Rittmeister
patent: 3193586 (1965-07-01), Rittmeister
Carduck Franz-Josef
Falbe Juergen
Fleckenstein Theo
Goebel Gerd
Pohl Joachim
Gray Bruce
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Ortiz Daniel S.
Szoke Ernest G.
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