为了从高含硅、含铁等的氧化锌矿中提取锌，设计了低酸浸出、针铁矿除铁并脱硅提锌的新工艺。
To extract zinc from high si and Fe zinc oxide ore, a new process consisting of low acid leaching, iron removal and desilication was developed for zinc extraction.
采用微电脑可视控制面板，可根据实际需求设定除铁、脱铁时间。
The visible control panel is employed here, the time for removal process is adjustable.
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