High-cobalt zinc concentrate bring some troubles in zinc hydrometallurgy, such as excess cobalt in middle-supernatant and low refine rate of first refine cobalt etc..

• 摘要锌湿法冶炼中高钴锌精矿给生产带来一些麻烦，如中上清液含钴高及一次净化的除钴率低等。