Abstract
Fluidized-bed technology has established itself as a major processing technique in the non-ferrous metal industry. The technique is being commercially used or is being developed towards commercial use in ore separation and beneficiation, drying, calcining, roasting, metal extraction and refining, and metal and alloy treatment. This paper describes briefly and discusses the use of fluidization in these different stages. The discussion extends to certain design considerations and the scale-up problem. The problems associated with conducting the different processes are discussed. The pyrometallurgical processes, using fluidized beds, have been well established without significant problems for most of the non-ferrous metals. The use of fluidized beds is being applied to a wide field of different metal and alloy treatment processes.
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