Synthesis of rare earth metal extractant

Details Synthesis of rare earth metal extractant Synthesis of rare earth metal extractant

C - Chemistry, Metallurgy

22

B

C22B 59/00 (2006.01) C07C 231/02 (2006.01) C07C 235/06 (2006.01)

Patent

CA 2745228

A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in an aprotic polar solvent, with a molar ratio of dialkylamine to diglycolic anhydride being at least 1.0, and removing the aprotic polar solvent.

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