Purification of phosphorus-containing acid comprises mixing a first aqueous phase comprising a phosphorus-containing acid with a second phase comprising an organic solvent, separating the phases and isolating the second phase

摘要

Purification of phosphorus-containing acid, comprises: (a) mixing a first aqueous phase comprising a phosphorus-containing acid with a second phase comprising at least one organic solvent to form an aqueous two-phase system; (b) separating the phases by centrifugation; and (c) isolating the second phase, which contains the phosphorus-containing acid.