Accortling to the characteristics of concentrate, the authors analyse the reasons why the iron grade of roasted magnetic separation concentrate is not high.
从精矿性质特点着手，分析了酒钢选厂焙烧磁选精矿铁品位不高的原因和主要影响因素。
It's proved that high grade carbonaceous gold concentrate can be obtained by floatation.
研究表明，浮选可获得品位较高的含碳质金精矿。
The means of producing high grade iron concentrate using imported fine screening technology at JSC "SSGPO" Iron Mine are described.
介绍了JSC“SSGPO”铁矿引进细粒筛分技术生产高品位铁精矿的手段。
At present, the grade of Miaogou iron concentrate was only 64.26% with high content of silicon.
庙沟铁矿目前最终铁精矿品位只有64.26%，精矿中含硅较高。
Choose don't over a long period of time, high, but the concentrate recovery from the eduction is close to ore mouth, magnetic double function poor, so concentrate grade is relatively low.
选别时间较长，回收率较高，而精矿排出端离给矿口较近，磁翻作用差，所以精矿品位较低。
High grade iron concentrate is a deep-processed product which is also a novel functional material that has great development potential.
高品位铁精矿是选矿的深加工产品，又是一种很有发展潜力的新型功能材料。
High speed, the magnetic particles by centrifugal force big, unit time magnetic double function was added, concentrate grade and processing capacity are high, but recovery rate is lower.
转速高，矿粒所受离心力大，单位时间内磁翻作用曾加，精矿品位与处理能力都高，而回收率则降低。
By adding sodium sulphide to depress quartz in the cleaning, high grade fluorite concentrate can be gained, whose content of silicon is under 1.0%, grade is over 97% and recovery is higher than 87%.
同时采用精选补加硫化钠抑制石英，得到了含硅量低于1.0%，品位高于97%，总回收率高于87%的高品级萤石。
Drum separator cannot produce high-grade iron concentrate because it cannot remove the locked particles and gangue in the agglomeration formed in the process of magnetic separation.
永磁筒式磁选机由于无法将磁团聚中夹杂的连生体和单体脉石有效地剔除，所以很难获得高品位精矿；
The prospect and the application state of high grade iron concentrate are described.
介绍了高品位铁精矿用于生产海绵铁和粉末冶金的现状及前景展望。
The average leaching recovery of gold reaches 86.01% from high grade raw ore and flotation concentrate of gold in pilot test.
半工业试验对浮选金精矿和高品位原矿平均金浸出率达86．01％。
If roasting temperature was too high then energy consumption was increased without improvement in iron and boron concentrate grade.
焙烧温度过高选后硼铁精矿粉品位变化不大，能耗增大。
The tests showed that an iron concentrate having a 65% iron grade could be obtained, but it had a rather high content of sulfur that should be reduced by some additional treatment.
试验表明：采用磁选柱选别可得到6 5 %以上的铁精矿。但精矿中硫含量偏高，需要进行降硫处理。
Then S content in concentrate can be lowered to 0.26% by reverse flotation desulphurization flow-sheet, with high-grade magnetite concentrate finally achieved.
该铁精矿通过反浮选降硫使含硫降至0.26%，最终获得优质的钒钛磁铁矿精矿。
Then S content in concentrate can be lowered to 0.26% by reverse flotation desulphurization flow-sheet, with high-grade magnetite concentrate finally achieved.
该铁精矿通过反浮选降硫使含硫降至0.26%，最终获得优质的钒钛磁铁矿精矿。
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