Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1983-03-31
1983-12-20
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
260933, 568851, C07C 2970, C07C 4313
Patent
active
044219369
ABSTRACT:
A continuous process for producing alkali metal alkoxides comprising continuously introducing an aqueous solution of an alkali metal hydroxide into an upper section of a column reactor; continuously vaporizing an alkanol or an alkoxyalkanol of 4 to 18 carbon atoms into a lower section of the reactor at a rate of at least about 2 to 4 moles of alcohol for each mole of alkali metal hydroxide introduced into the reaction zone; reacting the aliphatic alcohol with the alkali metal hydroxide in the reactor; concurrently removing water from the alkali metal hydroxide solution and the alkoxide formation from an upper section of the reactor as an azeotrope formed by excess alcohol and water; continuously condensing and separating the azeotrope into an alcohol phase and a water phase, the water phase being removed from the process and the alcohol phase being returned to the column reactor; and removing a substantially anhydrous reaction product consisting primarily of alkoxide product in excess alcohol from a bottom section of the reactor while simultaneously maintaining a nonoxidizing atmosphere while conducting the reaction.
REFERENCES:
patent: 1910331 (1933-05-01), Halbig
patent: 2877274 (1959-03-01), Kramis
Turova et al., "Russian Chemical Reviews", Mar. 1965, pp. 161-185.
Smith Harry M.
Williams Raymond D.
Evans J. E.
Fellows Charles C.
FMC Corporation
Horsky Eugene G.
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