fineness of grinding

In view of the low ore grade and recovery of the flotation concentration,improving grinding fineness,promoting the concentration grade of copper 1.

针对该矿浮选精矿品位及回收率偏低的现实,通过提高磨矿细度,铜精矿品位提高1。

Through regvinding technology of the middling to improving grinding fineness,adopting mix with of flotation reagents and introducing from new flotation reagents,lead and zinc recovery of flotation factory are improved.

　通过中矿再磨,改善磨矿细度,采用混合用药的方法和引进新的选矿药剂,提高了选厂铅、锌金属回收率。

This paper discusses the methods of obtaining Sr-ferrite oxysome materials of high intrinsic coercivity by using high-purity Fe2O3 and SrCO3 as raw materials and CaCO3, SiO2, and LaCO as additives, and by controlling the molar ratio of the raw materials, the amount of the additives and the particle size of powder.

探讨了以高纯度Fe2O3、SrCO3作原料,采用CaCO3、SiO2、Cr2O3、LaCo等作 添加物,通过控制成分的摩尔比、添加物的加入量、细磨粒度等工艺技术条件,获得 高内禀矫顽力锶铁氧体的方法。