氧肟酸型螯合剂对尾矿中Cu^（2＋）和Fe^（3＋）的螯合与分离

The Chelation and Separation of PVA-m-SBOA to Cu￣(2+) and Fe￣(3+) in the Tails

利用我们合成的聚乙烯醇－间－磺酰基苯基氧肟酸（简写ＰＶＡ－ｍ－ＳＢＯＡ）高分子螯合剂［１］，对铜尾矿萃取液中Ｃｕ２＋和Ｆｅ３＋等金属进行了螯合，再经酸洗而分离Ｃｕ２＋和Ｆｅ３＋，且螯合剂反复使用性能不变．

This paper described the chelation of PVA-m-sulfonyl benzohydroxamic acid(PVA-m-SBOA) to the Cu2+,Fe3+ in the extraction solvent of tails of copper ore,and the chelant by way of mordanting separate Cu2+ and Fe3+. The properties of chelating agent is unchangeabilities in the recycle.