Hydrogenation process for the preparation of alcohols and diols

Details Hydrogenation process for the preparation of alcohols and diols Hydrogenation process for the preparation of alcohols and diols

1993-12-30

1995-04-11

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568822, 568830, 568840, 568834, 568861, 568864, 568881, C07C 3113

Patent

active

054060044

ABSTRACT:
A process is described for the production of a hydroxylic compound selected from alcohols and diols by hydrogenation of a corresponding hydrogenatable material selected from monoesters of carboxylic acids, monoesters of dicarboxylic acids, diesters of dicarboxylic acids, lactones, and mixtures of two or more thereof which comprises:
(a) providing a hydrogenation zone containing a charge of a granular heterogeneous ester hydrogenation catalyst;
(b) supplying to the hydrogenation zone a vaporous feed stream containing hydrogen and a hydrogenatable material selected from monoesters of carboxylic acids, monoesters of dicarboxylic acids, diesters of dicarboxylic acids, lactones, and mixtures of two or more thereof, at an inlet temperature which is above the dew point of the mixture;
(c) maintaining the hydrogenation zone under temperature and pressure conditions which are conducive to effecting hydrogenation of esters;
(d) recovering from the hydrogenation zone a two phase product stream containing a hydroxylic compound selected from alcohols and diols at an exit temperature which is below its dew point.
In a preferred process the hydrogenatable material comprises dimethyl cyclohexanedicarboxylate.

REFERENCES:
patent: 2040944 (1936-05-01), Lazier
patent: 2079414 (1937-05-01), Lazier
patent: 2091800 (1937-08-01), Adkins et al.
patent: 2105664 (1938-01-01), Lazier
patent: 2137407 (1938-11-01), Lazier
patent: 2755317 (1956-07-01), Kassel
patent: 2818393 (1957-12-01), Lefrancois et al.
patent: 2830095 (1958-04-01), Nicolaisen
patent: 2884450 (1959-04-01), Holmquist
patent: 2901466 (1959-08-01), Kibler et al.
patent: 2917549 (1959-12-01), Hasek et al.
patent: 3334149 (1967-08-01), Akin et al.
patent: 4032458 (1977-06-01), Cooley et al.
patent: 4052467 (1977-10-01), Mills et al.
patent: 4172961 (1979-10-01), Henery et al.
patent: 4268695 (1981-05-01), Lange et al.
patent: 4361710 (1982-11-01), Weitz et al.
patent: 4584419 (1986-04-01), Sharif et al.
patent: 4652685 (1987-05-01), Cawse et al.
patent: 4751334 (1988-06-01), Turner et al.
patent: 4837368 (1989-06-01), Gustafson et al.
patent: 4918248 (1990-04-01), Hattori et al.
patent: 4929777 (1990-05-01), Irick, Jr. et al.
patent: 4999090 (1991-03-01), Tateno et al.
patent: 5030771 (1991-07-01), Fuhrmann et al.
patent: 5124435 (1992-06-01), Mori et al.
patent: 5142067 (1992-08-01), Wegman et al.
patent: 5185476 (1993-02-01), Gustafson
patent: 5191091 (1993-03-01), Wegman et al.
Mansour et al., "Sel. Hydrog. of Esters to Alcoh. with a Catal. Obtained Rh.sub.2 O.sub.3, Sn (n-C.sub.4 H.sub.9).sub.4 and SiO.sub.2 and Based On Isol. Active Centres", Angew. Chem. 101. (1989) Nr. 3, 360-63.
Wehner & Gustafson, "Catalytic Hydrog. of Esters Over Pd/ZnO", Journ. of Catalysis, 135, 420-426 (1992).
Homer Adkins, "Catal. Hydrog. of Esters to Alcoh.", Organic Reactions, vol. 8, Chp. 1, pp. 2-27 (1954).

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