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本文测定了1,4-双-(1′-苯基-3′-甲基-5′-氧代吡唑啉-4′-基)丁二酮-[1,4](BPMOPB)在0.1mol/L NaNO_3溶液中的酸离解常数及其两相分配常数。还研究了硝酸体系中BPMOPB-CHCl_3对铀的萃取,结果表明其生成的配合物是UO_2(HA)~+和UO_2(HA)_2,并计算了萃取平衡常数,探讨了它的萃取机理及萃合物的可能结构。
In this paper, the determination of 1,4-bis- (1’-phenyl-3’-methyl-5’-oxopyrazolin-4’-yl) butanedione- [1,4] (BPMOPB) Acid dissociation constants and their two-phase partition constants in mol / L NaNO 3 solution. The extraction of uranium from BPMOPB-CHCl_3 in nitric acid system was also studied. The results show that the complex formed is UO_2 (HA) ~ + and UO_2 (HA) _2, and the equilibrium constant of extraction is calculated. Its extraction mechanism and extraction The possible structure of the compound.