ore concentrate

In the processing and utilization of rare-earth minerals, radioactive thorium series is in radioactive equilibrium basic state in raw ore, concentrate and mineral processing tailings, but in the rare earth products, enrichment, Ce-rich slag and smelting waste, the thorium series is non-radioactive state.

在稀土矿物在加工利用中，原矿、精矿和选矿尾矿中，放射性钍系基本处于放射性平衡状态，但在稀土产品、富集物、富铈渣和冶炼废渣中，钍系处于非放射性状态。

Damp grinding of the iron ore concentrate powder by damp mill can effectively decrease the additional quantity of the bentonite and improve the strength of the raw pellet, so as to reduce the iron making cost.

采用润磨机对铁精矿粉进行润磨，可有效降低膨润土的添加量，提高生球强度，降低炼铁成本。

A preliminary analysis of kinetics of bacterial pretreatment of arsenical gold ore concentrate

含砷金矿细菌预处理过程动力学的初步研究

Using sponge iron reduced by iron ore concentrate powder as raw material, the smelting process of pure iron is investigated through non vacuum induction furnace and vacuum induction furnace.

以由铁精矿粉直接还原出来的海绵铁为原料，以非真空感应炉和真空感应炉为冶炼设备，对纯铁的冶炼工艺进行了研究与试验。