Rotary furnaces are the go-to technology for high temperature processing of powdered materials. They inherently offer significant advantages of throughput and energy efficiency over other forms of continuous, high temperature equipment. Some materials are well served by simple tube designs. In other cases, reaction conditions or stringent time-at-temperature requirements may necessitate more advanced designs. In this discussion we will review several indirect-fired rotary furnace design improvements that are targeted to maximize the utility of the process while meeting the critical needs of more difficult processes.
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