这表明，采用浮选—重选—浮选联合流程可以综合回收这种铜锡矿石中的铜、锡和硫。
It is shown that the process of flotation-gravity separation-flotation can be used to recover the copper, tin and sulfur from this copper-tin ore.
锡矿石试样的还原分解，在测定的准确性、结果的重现性、操作的简易程度以及分析的速度等方面，均优于经典的过氧化钠熔矿方法。
The reductive decomposition method has the advantages over the classic ore melting method with sodium peroxide in analytical accuracy, reproducibility, ease of operation and rate of analysis, etc.
为了用重选法回收锡石，大厂锡矿需先用粗粒优先浮出硫化矿石，但分选比较困难。
In order to recover cassiterite by gravity separation, it is necessary to separate sulphide minerals from the Dachang cassiterite ores by coarse preferential flotation.
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