Adaptive process was used to treat germanium-containing secondary zinc oxide. The leaching parameters were determined by batch experiment, and continuous experiment was conducted and the stability of the process was verified. The leaching efficiency of Zn and Ge in the batch experiments were 92.51 and 90.67%, respectively, while the leaching efficiencies of Zn and Ge in the continuous experiment were 93.53 and 88.47%, respectively. In the neutralization process, the Fe 3+ concentration in the neutralized solution is within 0.025 g/L. The Fe 2+ in the leaching solution increased gradually, as the neutralized residue was returned to the leaching process, the Zn in leaching residue reduce and the leaching efficiency of Zn increased. The residue mainly contained zinc sulfide and lead sulfate, with some fluffy structures on the surface. The process is promising for industrial application from indicators, economy, and applicability.

中文翻译：

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提高二次氧化锌浸出锗效率的适应性工艺

采用适应性工艺处理含锗二次氧化锌。通过批量实验确定浸出参数，并进行连续实验，验证了工艺的稳定性。批次实验中Zn和Ge的浸出率分别为92.51和90.67%，而连续实验中Zn和Ge的浸出率分别为93.53和88.47%。在中和过程中，中和溶液中的Fe 3+ 浓度在0.025g/L以内。浸出液中Fe 2+ 逐渐增加，随着中和渣返回浸出过程，浸出渣中Zn含量降低，Zn浸出效率提高。残留物主要含有硫化锌和硫酸铅，表面有一些蓬松结构。