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Pyrometallurgical processing of post-consumer electronics for recovery of metal values
Shuey, Scott A.
Shuey, Scott A.
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2006
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Abstract
The recycling of electronic waste (e-waste) tends to be a complex undertaking when considering the intimate bonding of materials in the average printed circuit board. The development of a recycling process is further complicated when considering the wide variety of products being generated under the heading of "electronics" as well as the constant change in materials of construction coupled with the speed at which electronics are changing. Research conducted at CSM focuses on developing an understanding of the behavior of individual polymer constituents in the presence of alkali and alkali-earth carbonates as well as the behavior of mixed polymer materials. This understanding leads to a process designed to entrap halides in-situ during pyrometallurgical pre-processing resulting in a reduction in the propensity of the formation of dioxins and furans or volatile metal halides. The resulting gas phase may then be combusted to reclaim thermal values. Carbon and metal rich solids may then be processed for metal recovery.
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