The purity 99.99% of scandium oxide(Sc 2O 3) was prepared from tungstenic slag with extraction process.
用萃取法从钨矿渣制得纯度为99．99％的氧化钪。
The purity 99.99% of scandium oxide(Sc 2O 3) was prepared from tungstenic slag with extraction process.
用萃取法从钨矿渣制得纯度为99．99％的氧化钪。
In order to recover the tungstenic dust, sodium carbonate was added to it and smelting test was carried out in a 0. 1MVA electric arc furnace.
要为
钨尘，利用钨尘灰
钠在0．1MVA电
内进行
试验，制成粗钨钠。
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