This and the lower production of bulk concentrates containing significant amounts of lead led to abandoning more and more the ImperialSmeltingprocess.
因此，并且随着含有大量铅的精矿产量的减少， 帝国熔炼工艺越来越少应用。
2
The softening point of sinter is a key factor that affects the smeltingprocess of Imperialsmelting Furnace (ISF).
烧结块软化点是影响密闭鼓风炉熔炼过程的一个关键因素。
3
By investigating the movement and distribution of metallic Ag in the ISP (Imperialsmelting Paten) smelting process, Suggestions on how to improve the Ag recovery rate were put forward in this paper.