Benxi Iron and Steel Nanfen concentrator, concentrator Waitoushan, Shuichang concentrator, Dashi concentrator using a single magnetic separation method to raise iron content and reduce silicon, receive good results. 
 Angang Gongchangling Concentrator magnetite concentrate cationic reverse flotation process, after the first rougher and a campaign has been finally iron ore concentrate. The reverse flotation foam was concentrated magnetic separation after grinding, regrinding magnetic dewatering tank, and then by several magnetic separation appropriateness, and will get the return in ore flotation job. Grade iron ore from 64% to 68.89%, siO2 content below 4%, more than 98% of the operation recovery. 
 Magnetic concentrate, iron ore TISCO Jianshan using anion repeated election process, and links to articles: Global crusher the network http://www.ycrusher.com/technology/103616.html efficient anionic collector MH-80, after a rougher, a selection of three scavenger, iron concentrate grade increased from 65.56% to 69.12%, from 8.35% to 3.56%, the content of the siO2 anti-flotation recovery rate of 98.58%. 
 Understanding approach to concentrate on the blast furnace, in addition to raise iron content and reduce silicon, attention should be paid to reduce the content of magazines such as S, P, K, Na, F. Some academics have suggested the application of iron, silicon, aluminum elements (Fe, SiO2, Al2O3 content) to evaluate the quality of iron ore concentrate, some ore should also include sulfur and phosphorus content, because the content of these elements on the quality of the sintered pellets influential. 

 Red iron ore separator http://www.ldqmj.com/tiekuangcixuanji.html, uses a strong magnetic field: dry-type permanent magnet roll high gradient magnetic separator is dedicated hematite mineral processing equipment, the magnetic field strength of up to 14500Gs, the magnetic field gradient, less electricity and stable performance. The family of devices for low-grade separation of weakly magnetic hematite hematite 5-15 grade, one-time increase, traditionally not into furnace smelting and sales of low-grade hematite difficult problem to solve, as find a way out of the low-grade ores, can produce considerable economic benefits. The device is a high return on investment, is investment less quick project.