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Comment Processing & Handling

Pelletizing technology for iron ore improves strength and output

By Scott Jenkins |

Iron ore is traditionally pelletized using the binding agent bentonite to facilitate transport and handling. A new additive for pelletizing iron ore significantly reduces the volume of binding agent required, while improving pellet strength and production output. Developed by Clariant AG (Muttenz, Switzerland; www.clariant.com), the pelletizing additive is a patented polymer-based binding agent that can reduce the bentonite required by more than 66%, Clariant says. Further, the additive, known as Floticor PA 8000, binds more quickly and improves the pellets’ compressive strength and abrasion resistance, which reduces fines waste, the company adds. In the iron-ore pelletizing process, an agglomeration step collects material from the iron ore cleaning and concentration process and sends the material through pelletizing machines, where the Floticor PA 8000 additive is introduced. The resulting pellets are less susceptible to breakage during handling, Clariant says. “Among the key advantages of the product is that it binds more quickly than the traditional method, so the residence time in the pelletizer is shorter,” explains John Dunne, senior vice president and general manager, Oil & Mining Services. This allows…
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