After long-range research on rutile, satisfying index was obtained by unite technologic process—discarding tailing via gravity concentration and the flotation of rough concentrate.
通过长期对金红石选别工艺的研究，采用联合选别工艺，即重选抛尾-粗精矿浮选工艺流程，可以获得满意的指标。
参考来源 - 细粒金红石的浮选分离研究First, the conventional method was used in the test to reclaim the iron ore in the BF. Which include magnetism separation, gravity concentration, reverse flotation.
试验首先采用常规的选矿方法对回收高炉瓦斯泥中的铁矿进行了探索性试验，其中包括磁选试验、重选试验以及反浮选试验，经比较选择螺旋溜槽重选来回收铁矿。
参考来源 - 攀钢高炉瓦斯泥资源综合利用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Nowadays, gravity concentration is used to recover fine wolframite, but the recovery of wolframite is lower than 45%.
现阶段，我国细粒级黑钨矿的回收主要采用重选法，其中钨的回收率一般在45%以下，损失率较大。
Here are reported in detail the present case and future tendency of Magnetic dressing, flotation, and gravity concentration at home and Abroad.
详细介绍了国内外磁选、浮选、重选设备的现状与发展趋势。
At present, most of Ta-Nb ores are processed by use of gravity concentration, with which the recovery of fine-grained Ta-Nb mineral is very low.
目前钽铌矿的选矿多以重选为主，但重选法选别细粒钽铌矿的回收率非常低。
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