...铁浸出率；聚硅酸氯化铁絮凝剂 [gap=4091]Key words： hematite； poly silicate ferric chloride； coagulation； iron leaching rate； poly silicate ferric chloride flocculant ..
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Results indicate that the leaching process with HCl is simple, easy and reasonable in the use of iron in the raw material. The leaching rate of Ag and Bi on one run can come up to 95%.
结果表明，盐酸浸出法简单、易行，并且合理地利用了原料中的铁，一次浸出银、铋的浸出率达到了95%以上。
Under these conditions, the iron-removal rate of zinc sulfate leaching solution reaches better effect.
在此条件下得到的除铁效果较好。
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