科研之友
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摘要
In this work, a facile ultrasonic-assisted chemical replacement method was developed for the recovery of copper and tin from tinned copper wire waste. The reaction conditions for the process were optimized (e.g. hydrochloric acid concentration, copper sulfate concentration, ultrasonic frequency, ultrasonic power, reaction time). The ultrasonic method accelerated the tin removal process and promoted the tin removal efficiency. Thus, Cu and Sn can be separately recovered quickly and efficiently by the developed method, even while using a stripping solution with low concentrations of copper sulfate and hydrochloric acid. Meanwhile, the mechanism responsible for the tin stripping and its recovery from the stripping solution was also investigated.
