C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/462.3
C07F 9/142 (2006.01) C07F 9/02 (2006.01)
Patent
CA 1086768
ABSTRACT Process for the manufacture of aluminium ethylphosphite which consists in reacting an excess of a ternary equilibrium mixture comprising, in molar terms, from 23 to 93% of diethyl phosphite, from 59 to 7% of monoethyl phosphite and from 18 to 0.1% of phosphorous acid, with alumina, which may be hydrated, at a temperature between 20 and 100°C under reduced pressure, all or substantially all the water resulting from the reaction being removed as it is formed.
290724
Abblard Jean
Ghazarian Michel
Viricel Rene
Macrae & Co.
Philagro
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