Conversion of picrate to picric acid in a liquid-liquid two phase system
AssigneeGradient Technology
InventorsKym B. Arcuri, Dwayne A. Goetsch
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Abstract
A process for the conversion of a picrate salt, preferably ammonium pricrate, to picric acid by acidifying the picrate salt in a two phase liquid system. One phase is an aqueous phase which contains an acid which is effective for acidifying ammonium picrate to picric acid and the other phase is an organic solvent phase in which the picric acid is soluble.
Claims16
A process for converting a picrate salt to picric acid which process comprises reacting said picrate salt with an aqueous solution of a strong acid which is effective for converting said picrate salt to picric acid, said reaction taking place in the presence of an organic solvent phase in which the picric acid is substantially soluble, and into which the picric acid dissolves upon formation.
A process for converting ammonium picrate salt to picric acid which process comprises reacting said ammonium picrate with an aqueous solution of a strong acid selected from the group consisting of sulfuric acid, nitric acid, and chloric acid, said reaction taking place in the presence of an organic solvent phase in which the picric acid is substantially soluble, and into which the picric acid dissolves upon formation.
Dependencies are inferred from the claim text.