A chemical fertilizer called ammonium sulfate is confirmed by tests to improve flotation recovery of gold from Wu-La-Ga gold ores.
经试验发现应用一种化学肥料硫酸铵可以显著提高乌拉嘎金矿石的浮选回收率。
In general, the recovery of gold in arsenian gold ores usually is made by use of flotation cyanide leaching or flotation roasting cyanide leaching technological process.
对含砷金矿石中的金的回收以往所采用的选（冶）矿工艺流程一般是浮选-氰化浸出和浮选-焙烧-氰化浸出工艺流程。
And, we also discussed the mechanisms of flotation and leaching of the tow zinc oxide ores.
同时还对氧化锌矿的浮选和浸出机理作了简要分析。
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