钨属于稀有元素,包括钨铁精矿和钨酸钙精矿两种,在地壳中含量仅为0.8%,我国钨储量约占世界总储量的55%,居首位。
·2,447,543篇论文数据,部分数据来源于NoteExpress
采用硫磷混酸分解试样测定钨精矿中钙的含量。
Determine the content of calcium with the mixed acidic thionation decomposition sample in the tungsten concentrates mineral.
分析了在黑钨精矿碱压煮条件下,磷砷渣中钨和污染因子砷的行为。
This paper analyzed the behaviour of tungsten and arsenic contamination factor in phosphorous-arsenic slag under the condition of pressure digestion with NaOH for wolframite concentrate.
从1949年至今赣州累计生产钨精矿近120万吨,约占全国同期总产量的49%。
Ganzhou has supplied about 1.2 million tons of tungsten concentrate since 1949, which is 49% of the total output in China.
应用推荐