Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1989-02-22
1990-08-21
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
502244, 502259, 502260, 502261, 502325, 502337, 502345, C07C 29132, C07C 2914, C07C 3118, C07C 3126
Patent
active
049508121
ABSTRACT:
A single-step process for the conversion of polysaccharides to polyhydric alcohols by hydrogenation at high pressure and temperature in the presence of a catalyst comprising (i) a supported metal selected from ruthenium, copper, nickel, cobalt and their mixtures, the metal being highly dispersed on the support so as to be capable of adsorbing more than 0.58 molecules of CO per atom of metal, and (ii) a solid having acidic functions, which may or may not be identical to the support, the solid having sufficient acid functions so that the rate constant of hydrolysis of sucrose on the catalyst is greater than 70% of the rate constant of hydrogenation of glucose on the catalyst. The process gives substantially pure polyhydric alcohols in a single step.
REFERENCES:
patent: 2609399 (1952-09-01), Kool et al.
patent: 3963788 (1976-06-01), Kruse et al.
patent: 3963789 (1976-06-01), Kruse et al.
608A, Bull. Ste chimique de France (1981) juillet-aout, Partie II, Paris, France, with translation thereof.
Chemical Abstracts 72, 134408 (1970), p. 109.
Hinnekens Herve
Jacobs Pierre
Evans J. E.
Fina Research S.A.
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