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本文测定了N1923在pH=6的条件下对三价稀土离子的萃取,实验表明N1923作为中性萃取剂配位于稀土原子,并且有较高的萃取率。分别选用三氯醋酸和硫氰酸根作为阴离子,对N1923作为萃取剂时两个体系的萃取行为、萃合物组成和配位数进行了测定和比较。
In this paper, the extraction of trivalent rare earth ions by N1923 under the condition of pH = 6 has been measured. The experiment shows that N1923 coordinates with rare earth atoms as a neutral extractant and has a high extraction rate. Trichloroacetic acid and thiocyanate were chosen as anions respectively. The extraction behavior, composition and coordination number of the two systems were determined and compared with N1923 as extractant.