Separation and Recovery of Nickel from Waste Electroless Nickel-Phosphorous Plating Solution
Separation and Recovery of Nickel from Waste Electroless Nickel-Phosphorous Plating Solution
复制标题
DOI：
10.15261/serdj.20.149
复制
发表时间：
2013
影响因子：
0.7
通讯作者：
Tokie Ookubo;S. Nishihama;K. Yoshizuka
中科院分区：
文献类型：
--
作者：
Tokie Ookubo;S. Nishihama;K. Yoshizuka
研究了二（2-乙基己基）磷酸（D2 EHPA）与烟酸酯协同萃取分离回收实际化学镀镍磷废液中的镍。单独用D2 EHPA萃取Ni的能力低，这是由于在废液中共存的磷化合物的抑制。使用D2 EHPA和烟酸酯两者，可以用协同萃取系统实现有效萃取。通过优化操作条件，可获得95%以上的满意萃取和反萃效果.本发明的萃取-汽提过程可以成功地重复，尽管少量的烟碱化合物溶解在水溶液中。
Separation and recovery of nickel from an actual waste solution of electroless nickel-phosphorous plating solution has been investigated, employing synergistic extraction with bis(2-ethylhexyl)phosphoric acid (D2EHPA) and nicotinic acid ester. The extractability of Ni with D2EHPA alone is low, due to suppression by phosphorous compounds coexisting in the waste solution. Effective extraction can be achieved with a synergistic extraction system, using both D2EHPA and nicotinic acid ester. By optimizing the operational conditions, satisfactory extraction and stripping of more than 95 % yield can be achieved. The present extraction – stripping processing can be successfully repeated, although a small amount of the nicotinic compound is dissolved into the aqueous solution.