A review of binders in iron ore pelletization

Use of Iron Ore Fines in Cold-Bonded Self-Reducing Composite Pellets

“…In the iron ore agglomeration industry, pelletizing is widely used owing to the good qualities of the agglomerates produced. Pellets can be transported for long distances without deteriorating in physical properties (23). Pellets also have excellent reducibility and good bed permeability which result in high reduction kinetics (23).…”

“…Binders are added to render plasticity to the concentrate and thus helping it to form seeds that will grow into pellets. It also helps to maintain strength in the green pellets as well as during drying and subsequent handling (23).…”

“…The concentrate, however, has to be clustered back into big particles that are usable in iron reduction units (23). Many agglomeration techniques are used in different industries.…”

“…Hydrothermal bonding refers to processes in which a combination of lime and silica rich materials is partially dissolved under hydrothermal conditions in autoclaves (23,26).…”

Influence of a carboxymethyl cellulose (CMC) binder on the mechanical properties of iron ore pellets

“…Inorganic binders such as bentonite have been used predominantly in the iron ore pelletizing process to obtain pellets with suitable properties (Eisele and Kawatra, 2003). These binders, however, have the disadvantage of introducing impurities into the pellets.…”