金属学报  1989, Vol. 25 Issue (1): 104-110

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伯胺N_(1923)与中性磷试剂对Cd(Ⅱ)的协同萃取

马根祥;李德谦

中国科学院长春应用化学研究所;长春;中国科学院长春应用化学研究所

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

马根祥;李德谦. 伯胺N_(1923)与中性磷试剂对Cd(Ⅱ)的协同萃取[J]. 金属学报, 1989, 25(1): 104-110.
, . SYNERGISTIC EXTRACTION OF Cd(II) WITH PRIMARY AMINE N-1923 AND NEUTRAL ORGANOPHOSPHORUS REAGENTS[J]. Acta Metall Sin, 1989, 25(1): 104-110.

摘要 参考文献 相关文章 Metrics 全文: PDF(472 KB)   摘要: 本文研究了伯胺N_(1923)与中性磷试剂(TBP,DBBP)的正庚烷溶液,从盐酸介质中对Cd(II)的协同萃取。用斜率法、等摩尔系列法确定协萃配合物的组成为(RN-H_3Cl)_2·CdCl_2·B,求得协萃反应的平衡常数分别为lgK_(12)(TBP)=2.13,lgK_(12)(DBBP)=2.37;有机相协萃配合物的生成常数分别为lgβ_(12)(TBP)=1.22,lgβ_(12)(DBBP)=1.41,计算了协萃反应的热力学函数,并对协萃配合物的IR,NMR谱进行了研究。 关键词 ： 伯胺,  中性磷萃取剂,  协同萃取,  镉     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. Key words： primary amine    neutral organophosphorus reagent    synergistic extraction    cadmium 收稿日期: 1989-01-18      基金资助:国家自然科学基金 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 马根祥 李德谦 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1989/V25/I1/104 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 [1] 刘会洲;于淑秋;陈家镛. 伯胺(N1923)-正辛烷在硫酸体系中萃取和反萃Fe(III)机理的研究[J]. 金属学报, 1991, 27(4): 84-87. [2] 韩树民;马根祥;李德谦. HEH/EHP和伯胺N_(1923)萃取Zn(II)的协同与反协同效应[J]. 金属学报, 1991, 27(2): 83-88. [3] 唐执忠;刘民治;肖耀天. 钢的显微组织对Cd脆敏感性的影响[J]. 金属学报, 1989, 25(2): 40-44. Viewed Full text Abstract Cited   Shared      Discussed