【摘要】 以电镀废水为原料 ,P50 7为萃取剂进行镍铬萃取分离系数的研究。应用串级萃取理论设计镍铬分离工艺及工艺参数 ,进行了小型串级实验。结果表明 :通过串级萃取使Ni与Cr(Ⅲ )和Cr(Ⅵ )得到有效的分离 ,硫酸镍产品中总铬含量小于 5× 10 -6,收率 98%以上更多还原

【Abstract】 The paper relates technological study on P 507 extracting and separating Cr from Ni.During the research,electroplating waste water of Ni is used as raw material,separation technology and technology parameter are designed on the theory of cascade extraction system,and the separation coefficient between Ni and Cr is studied through experiment too.The effect shows that Ni and Cr(Cr (Ⅲ) and Cr (Ⅵ) ) can be effectively separated by cascade extraction,the content of total Cr in the product of nickel sulphate is less than 5×10 -6 and the recovery rate is more than 98%.更多还原