The results showed that after extraction separation,the copper recycle rates is greater than 90% and nickel greater than 95% with the M5640 as the extractant and sulphuric acid as the anti-extractant.

• 结果表明,以M5640为萃取剂,硫酸溶液为反萃取剂,经萃取分离后,铜的回收率大于90%25,镍的回收率大于95%25。