Process for the production of ethanol and/or acetaldehyde by rea

Details Process for the production of ethanol and/or acetaldehyde by rea Process for the production of ethanol and/or acetaldehyde by rea

1979-10-01

1981-04-14

Evans, Joseph E.

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

Organic compounds

Oxygen containing

568487, C07C 2700, C07C 2932

Patent

active

042621542

ABSTRACT:
Ethanol and/or acetaldehyde is (are) produced by reacting methanol and synthesis gas at elevated temperature and pressure in the presence of a catalyst consisting of (a) cobalt, (b) an iodide or a bromide and (c) a polydentate ligand wherein the donor atoms are selected from nitrogen, phosphorus, arsenic, antimony and bismuth, ethanol being the predominant product when the donor atoms are exclusively nitrogen or phosphorus, particularly phosphorus, and acetaldehyde being the major product when the donor atoms are exclusively arsenic, antimony or bismuth. A particularly effective polydentate ligand is one having the formula:

REFERENCES:
patent: 3239570 (1966-03-01), Slaugh et al.
patent: 3248432 (1966-04-01), Riley et al.
patent: 3401204 (1968-09-01), Mason et al.
patent: 3448157 (1969-06-01), Slaugh et al.
patent: 3954877 (1976-05-01), Gipson
patent: 4133966 (1979-01-01), Pretzer et al.
Wender et al., "Science", vol. 113, (1951), pp. 206-207.

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