C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/625.2
C07C 31/30 (2006.01) C07C 41/18 (2006.01) C07C 41/42 (2006.01) C07C 43/13 (2006.01) C07F 9/09 (2006.01) C07F 9/11 (2006.01)
Patent
CA 1199035
ABSTRACT: CONTINUOUS ALKOXIDATION PROCESS 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 alkox- ide formation from an upper section of the reactor as an azeotrope formed by excess alcohol and water; contin- uously 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 substan- tially 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.
424436
Smith Harry M.
Williams Raymond D.
Fmc Corporation
Osler Hoskin & Harcourt Llp
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