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,the static extraction efficiency of Nd from Nd2O3 with the trilkyl phosphine oxide(TRPO)-HNO3 complex was less than 10%,and the static extraction efficiency of Ce from CeO2 with the TBP-HNO3 complex......
,the static extraction efficiency of Nd from Nd2O3 with the trilkyl phosphine oxide(TRPO)-HNO3 complex was less than 10%,and the static extraction efficiency of Ce from CeO2 with the TBP-HNO3 complex......
双氧水配合TRPO/TBP萃取分离钨钼的工业试验关文娟1,2,张贵清1,2,肖连生1,2,张启修1,2,李晓宇3,张互标31. 中南大学冶金与环境学院冶金分离科学与工程实验室2. 中南大学难冶有色金属资源高效利用国家工程实验室3. 洛阳栾川钼业集团股份有限公司摘 要:以双氧水(H2O2)为配合剂,采用混合萃取剂三烷基氧膦(TRPO)和磷酸三丁酯(TBP)从含WO3110150 g·L-1,Mo/WO3(质量比)10%15%的高钼钨酸铵溶液中萃取分离钨钼,负载有机相用NH4HCO3溶液选择性反萃Mo.在萃取-反萃取试验研究的基础上进行工业试验,利用kremser方程确定了平衡p H值,萃取级数和W,Mo萃取率之间的关系,提出了中间级加酸调p H值的2段式逆流萃取,2段式反萃取等新的工艺改进措施,在优化条......
-acetato medium by Cyanex272 in toluene [J]. Hydrometallurgy, 2002, 63(1): 75-84. [17] MURALI M S, MATHUR J N. Use of a mixture of TRPO and TBP for the partitioning of actinides from high-level waste......
and Radiochemistry, 1999, 21(2): 65?74. [11] 刘金晨, 刘志平, 陈 键, 陆九芳. TRPO-稀释剂萃取硝酸过程中三相形成机理的研究[J]. 核化学与放射化学, 1998, 20(1): 36?41.LIU Jin-chen, LIU Zhi-ping, CHEN Jian, LU Jiu-fang. Study on the mechanism of third phase formation in nitric acid extraction by TRPO[J]. Journal of Nuclear and Radiochemistry, 1998, 20(1): 36?41. [12] FU X, LIU H, CHEN H, HU Z, WANG D. Three-Phase extraction study of the TOA......
,例如国内最大的铂族金属生产企业金川公司,在酸性介质中采用二异戊基硫醚(S201)萃取剂钯,三烷基混合叔胺(N235)萃取铂和三烷基氧化膦(TRPO)萃取铱,萃余液精制铑工艺,建立铂族金属钯,铂,铱,铑全萃取分离流程[18]. 碱性氰化液介质中贵金属溶剂萃取研究主要集中于金的提取分离,从20世纪80年代起,文献[19-22]中已报道了大量这方面的研究工作,陈景院士课题组[23-25]针对季铵盐萃金... of Chemical Technology and Biotechnology, 2015, 90: 1102-1109. [37] 杨项军, 王世雄, 邹安琴, 陈 景, 郭 洪. TRPO萃淋树脂从碱性氰化液中固相萃取Au(1)机理研究[J]. 光谱学与光谱分析, 2014, 34(2): 483-488. YANG Xiang-jun, WANG Shi-xiong, ZOU An-qin......
13.5%富集至47.64%和16.64%,钾含量由0.5%降到0.21%,钠含量由0.30%降到0.17%.结合表3和图7分析可知,锌,铁的二段逆流浸出率分别为91%和1.15%.综上所述,通过二段逆流浸出得到的浸出液杂质含量较低,经锌粉净化后可采用萃取剂Mextral54-100(活性成分:1-苯甲酰-2壬酮)在协萃剂三烷基氧化膦(TRPO)的协同作用下萃取回收锌[21-22];得到的二段浸出渣......
, NING Shun-yan, WANG Xin-peng, WEI Yue-zhou, YIN Xiang-biao, LIANG Jie. Recovery of scandium from white waste acid generated from the titanium sulphate process using solvent extraction with TRPO [J......
Trans. Nonferrous Met. Soc. China 30(2020) 518-534 Extraction and stripping of Cu and Ni from synthetic and industrial solutions of Sarcheshmeh Copper Mine containing Cu, Ni, Fe and Zn ions Amirhossein SOEEZI1, Hadi ABDOLLAHI1, Sied Ziaedin SHAFAEI1, Esmaeil RAHIMI2 1. School of Mining engineering, ......