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.
申请公布号
CA2745228(A1)
申请公布日期
2012.01.05
申请号
CA20112745228
申请日期
2011.07.04
申请人
SHIN-ETSU CHEMICAL CO., LTD.;NISSIN CHEMICAL INDUSTRY CO., LTD.