Sodium Bentonite is widely used in iron ore pelletization because it works as a powerful binder. During pelletization, fine iron ore particles are rolled into small balls (pellets). These pellets need strength so they do not break during handling, transport, and furnace processing. Sodium Bentonite provides that strength.
How Sodium Bentonite Helps in Pellet Making
1. Strong Binding Ability
Sodium Bentonite has excellent swelling and bonding properties. When mixed with water, it becomes sticky and helps bind fine iron ore particles together into firm pellets.
2. Improves Pellet Strength
It increases both wet strength and dry strength of pellets, reducing breakage during drying, firing, and transportation.
3. Better Ball Formation
Sodium Bentonite gives the right plasticity to ore fines, helping in smooth and uniform pellet formation.
4. Reduces Dust & Material Loss
Pellets remain intact, which reduces dust formation and helps maintain high yield in production.
5. Withstands High Temperature
During the firing process in the furnace, pellets need to remain strong. Sodium Bentonite maintains pellet shape even under high heat.
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