Phosphoric acid extraction process
AssigneeInternational Minerals & Chemical Corp.
InventorMartin J. Jacobs
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Abstract
A method for extracting phosphoric acid from wet process phosphoric acid is disclosed. N,N-dialkyl-.alpha.-aminoacids are contacted with wet process phosphoric acid to extract substantially pure phosphoric acid therefrom. The N,N-dialkyl-.alpha.-aminoacids are dissolved in a diluent.
Claims7
A method of extracting phosphoric acid from wet process phosphoric acid containing impurities which comprises contacting the wet process phosphoric acid with an effective phosphoric acid-extracting amount of an N,N-dialkyl-.alpha.-aminoacid wherein the N,N-dialkyl-.alpha.-aminoacid is dissolved in a diluent and recovering the phosphoric acid therefrom.
Dependencies are inferred from the claim text.