| 钯的萃取化学研究——Ⅲ.N263—氯仿从氯化物介质中萃取钯(Ⅱ) |
| STUDIES ON EXTRACTION CHEMISTRY OF PALLADIUM——III. A EQUILIBRIUM STUDY ON EXTRACTION OF PALLADIUM (II) WITH QUATERNARY AMMONIUM SALT N263IN CHLOROFORM |
|
| 摘要: 考察了酸度、氯离子浓度、起始Pd(Ⅱ)浓度和有机相中萃取剂浓度以及体系温度等因素对N263—氯伤苹取Pd(Ⅱ)的影响。 |
| 关键词: 季铵盐N263 钯 萃取平衡 阴离子交换 酸度 |
| 基金项目: 中科院科学基金的资助 |
| Abstract: The extraction of palladium(II)with quaternary ammonium salt N2693 in CHC13 from hydrochloric acid medium has been studied at 25±1℃. The experimental results indicate that the extraction of Qd(Ⅱ) with N2693 is an anion exchange process: HPdCl4-+ACl(o)===AHPdCl4(o)+Cl- (I)
PdCl42-+2ACl(o)===A2PdCl4(o)+2Cl- (Ⅲ)
where ACl and (o) represent N2693 and organic phase respectively. Equation (I) is the prodominent reaction at high acidity and with the lowing of the acidity,equation (Ⅱ) becoms the main reaction. The experimental results also show that the dimer species of Pd (Ⅱ) in the organic phase is formed with the increasing of Pd (Ⅱ) in this phase. |
| Keywords: quaternary ammonium salt N2693 palladium extraction equilibrium anion exchange acidity |
| 投稿时间：1985-03-19 |
| 摘要点击次数: 1660 |
| 全文下载次数: 1340 |
| 盖会法,孙思修,高自立,沈静兰.钯的萃取化学研究——Ⅲ.N263—氯仿从氯化物介质中萃取钯(Ⅱ)[J].无机化学学报,1985,1(1):169-172. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
