我矿现行生产流程是使用丹宁从含锗和其它杂质的硫酸锌溶液中分离和回收锗,硫酸锌再中和、净化、电解回收锌(图1). 遵照毛主席“要节约闹革命”的教导,我们在保证锗沉淀效率的前提下,对降低丹宁用量作了一些工作,取得了一定效果.锗的沉淀率从94%左右提高到99% My current mine production process uses tannin to separate and recover germanium from zinc sulphate solution containing germanium and other impurities, re-neutralize zinc sulphate, purify and electrolyze zinc (Figure 1). In accordance with Chairman Mao’s “To Save the Revolution” Under the premise of ensuring the efficiency of germanium precipitation, we have done some work to reduce the dosage of tannin, and achieved some results. The precipitation rate of germanium increased from about 94% to 99%