研磨硅铁粉是由大型研磨金属粉末生产线和细粉分选工艺制成。产品呈不规则状。广泛用于矿山重介质选矿工艺。基本原理是阿基米德定律。密度小于介质的矿物在分选过程中会浮起，而密度大于介质的矿物会下沉，从而达到分选的目的。
产品技术参数
Fe: 80% min, Si: 14-16%, Mn: 0.8% max, Cr: 0.6% max, Cu: 0.5% max,
P: 0.10% max, S: 0.05% max
Particle Size Distribution
| Grade | 48D | 65D | 100D | 150D | 270D |
| +212 (microns) | 0-2 (%) | 0-1 | 0-1 | 0-1 | 0 |
| -212+150 | 4-8 | 0-3 | 0-1 | 0-1 | 0 |
| -150+106 | 12-18 | 4-8 | 1-4 | 0-2 | 0-1 |
| -106+75 | 19-27 | 9-17 | 5-10 | 2-6 | 0-3 |
| -75+45 | 20-28 | 24-32 | 20-28 | 13-21 | 7-11 |
| -45 | 27-35 | 47-55 | 61-69 | 73-81 | 85-93 |
Non-Magnestics（非磁性物）: 1.5% Max
Density（真密度）: 6.7-7.1
Packing: 1mt, 2mt, or iron drums as per request
包装可以是吨袋或者桶装