Thorium element and rare earth element separation method and separation reagent
A separation method and rare earth element technology, applied in the direction of improving process efficiency, can solve the problems of difficult stripping, expensive reagents, etc., and achieve the effects of avoiding low solubility, simple extraction system and high extraction efficiency
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[0017] specific implementation plan
[0018] The present invention is illustrated below in conjunction with specific embodiments.
[0019] The extractant 1-methylimidazole specifically used in the present invention can be obtained commercially. The diluent used in the present invention is the conventional solvent n-amyl alcohol.
[0020] The results of some specific experiments are provided below:
[0021] Take 0.5 mL of n-amyl alcohol dissolved with a certain amount of extractant 1-methylimidazole and add it to the centrifuge tube. In the example, the concentration of 1-methylimidazole is 0.1 molL -1 ~1.5molL -1 , adding 4×10 -4 moL -1 , pH = 3 nitrate solution 5mL, shake in the shaker at 298K for 10 minutes, take out and centrifuge for 3 minutes, take the upper aqueous phase to measure the concentration of metal ions to calculate the distribution ratio respectively, the results are as follows figure 1 shown.
[0022] pass figure 1 It can be seen from the data that...
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