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 3/32 (2006.01) C07C 231/02 (2006.01) C07C 235/06 (2006.01) C22B 59/00 (2006.01)

Patent

CA 2745229

A rare earth metal extractant in the form of a dialkyl diglycol amic acid is synthesized by reacting diglycolic anhydride with a dialkylamine in a synthesis medium. A molar ratio (B/A) of dialkylamine (B) to diglycolic anhydride (A) is at least 1Ø A non-polar or low-polar solvent in which the dialkyl diglycol amic acid is dissolvable is used as the synthesis medium.

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