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SYNERGISTIC EXTRACTION OF Cd(II) WITH PRIMARY AMINE N-1923 AND NEUTRAL ORGANOPHOSPHORUS REAGENTS |
MA Genxiang;LI Deqian Changchun Institute of Applied Chemistry; Academia Sinica |
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Cite this article:
MA Genxiang;LI Deqian Changchun Institute of Applied Chemistry; Academia Sinica. SYNERGISTIC EXTRACTION OF Cd(II) WITH PRIMARY AMINE N-1923 AND NEUTRAL ORGANOPHOSPHORUS REAGENTS. Acta Metall Sin, 1989, 25(1): 104-110.
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Abstract The synergistic extraction of Cd (Ⅱ) with primary amine N--1923and neutral organophosphorus reagents (TBP, DBBP, B) from hydrochloric acidhas been investigated at μ=0.5, t=25℃. The compositions of the synergisticextraction complexes and the mechanism of the synergistic extraction have beendatermined by the methods of slope and constant mole. The synergistic extractioncomplexes with composition (RNH_3C1)_2. CdCl_2.B have been demonstrated. Thesynergistic extraction reactions and additional reaction of Cd (Ⅱ) have beenproposed as follows:CdCl_2+2RNH_3Cl_(o)+B_(o)?(RNH_3Cl)_2. CdCl_2.B_(o)(RNH_3Cl)_3. CdCl_2_(o)+B_(o)?(RNH_3Cl)_2.CdCl_2.B_(o)+RNH_3Cl_(o)In addition, the equilibrium constants and the thermodynamic functions of the syn-ergistic extraction reactions have been calculated. The IR and NMR spectra of thesynergistic extraction complexes of cadmium (Ⅱ) have been studied as well.
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Received: 18 January 1989
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1 徐光宪,王文清,吴谨光,高宏成,施鼐.萃取化学原理,上海科学技术出版社,1984. 175 2 陈建海,王文清.铀矿冶,1984;3(4) :30 3 Cattrall R W, Slater S J E. Coord Chem Rev, 1973; (11) : 227 4 Rao V M, Sastri M N. Talanta, 1980; (27) : 771 5 乐少明,李德谦,倪嘉缵.无机化学,1987;3(4) :51 6 Yu Shuchiou, Chen Chiayung, International Solvent Extraction Conference, Denver, Colorado USA, August 26-September 2, 1983: 409 7 Mooiman M B, Miller J D. Hydrometallurgy, 1986; (16) : 245 8 Yu Shuqiu, Yu Kening, Chen Jiayong. Chin J Met Sci Technol, 1987; 3 (3) : 131 9 Du Preez Rene, Preston Johns S. Afr J Chem, 1986; 39 (2) : 89 10 Sillen L G. Stability Constants of Metal-ion Complexes, Supplement No.1, The Chemical Society, Burlington House, London, W1V OBN, 1971: 180 |
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