同时锡在铜精矿中的损失也不到4%。
The loss of tin in the sulphide copper concentrate was less than 4%.
用云锡摇床处理硫精矿降砷效果好，除砷效率接近80%。
The bed-shaking that is used for reducing arsenic in sulfur selected mine. The efficiency of getting rid of sulfur approaches 80%.
本文报道用铁精矿制球、链篦机-回转窑还原焙烧法从连平磁铁矿脱除锡、锌试验的结果。
This paper presents the results of studies of a method for removing tin and zinc from pellets made from Lian-ping magnetite ore containing said metals by reductive roast in a grate-kiln.
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