| 简介 |
PROBLEM TO BE SOLVED : To provide a method for economically recovering valuable metals such as nickel, cobalt or rare earth elements contained in nickel-hydrogen secondary battery scrap. SOLUTION : Recovered active material obtained by crushing a used nickel- hydrogen secondary battery and performing physical separation such as sieving is dissolved while blowing gaseous chlorine in hydrochloric acid. Nickel, cobalt and rare earth elements are recovered into a solution, and manganese is selectively precipitated, so that nickel, cobalt and rare earth elements, and manganese are separately recovered. |
客服热线：
手机版
二维码
