The domestic ores are fine magnetiteconcentrate, and the imported ores mainly are hematite sinter fines.
国产铁精矿是细粒度的磁选精矿，进口铁矿则以粉状赤铁矿为主。
2
A desulfurization research on the magnetiteconcentrate with a sulfur content over 0.4% was conducted by flotation column.
采用浮选柱对某铁矿选矿厂生产的含硫量超过0.4%的磁铁矿精矿进行了脱硫试验研究。
3
Then S content in concentrate can be lowered to 0.26% by reverse flotation desulphurization flow-sheet, with high-grade magnetiteconcentrate finally achieved.