Synergistic Extraction of Lanthanides by 1-Nitroso-2-Naphthol and Trioctylphosphine Oxide in Paraffin Wax  

作　　者：郭效军 高锦章 范海燕 彭波 王碧 邓启良 康敬万 

出　　处：《Rare Metals》2000年第4期306-311,共6页稀有金属（英文版）

基　　金：TheProjectissupportedbytheGansuProvinceNaturalScienceFoundationandGansuProvinceEducationCommissionofChina

摘　　要：The paraffin wax was used as a diluent for 1-nitroso-2-naphthol(HA) and trioctylphosphine oxide(TOPO) in the extraction of lanthanides at 70℃. The composition of the extracted species was given as LnA_3(TOPO)_2 by means of the slope analysis. The variation of the synergistic extraction equilibrium constant(K_ sex) was investigated at 60～80℃, and the thermodynamic data were calculated. The dependence of separation factors on temperature was also studied.The paraffin wax was used as a diluent for 1-nitroso-2-naphthol(HA) and trioctylphosphine oxide(TOPO) in the extraction of lanthanides at 70℃. The composition of the extracted species was given as LnA_3(TOPO)_2 by means of the slope analysis. The variation of the synergistic extraction equilibrium constant(K_ sex) was investigated at 60～80℃, and the thermodynamic data were calculated. The dependence of separation factors on temperature was also studied.

关 键 词：Synergistic extraction LANTHANIDES 1-nitroso-2-naphthol Trioctylphosphine oxide 

分 类 号：TG146[一般工业技术—材料科学与工程]