Iron concentrate is crushed, ground and processed into mineral powder, which is called concentrate powder. Concentrate powder is divided into many kinds of concentrate powder according to different mineral processing methods, such as magnetic separation, flotation and gravity separation. Iron concentrate powder is mainly iron-containing ore powder, and other rock impurities are removed.
Pelletizing: after the concentrate powder and limestone powder are evenly mixed, they are rolled or pressed into green pellets with a diameter of 10-30mm, and the pellets are consolidated after drying and high-temperature roasting. This spherical mineral is called pellet. Pellets have uniform particle size, good permeability and reducibility. But the temperature control of pellet roasting is stricter than sintering. Pellets also require fine particle size of raw materials and low water content of mineral powder. Pellets include oxidized pellets and metallized pellets.
As for the differences between them, it should be enough to clarify their definitions.
63% of iron ore and 63% of iron concentrate refer to grade, and grade refers to the content of useful component iron.
The price is not clear and the market changes too fast.