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Adverse effects of fluoride on hydrometallurgical operations

Parsonage, D., Singh, P. and Nikoloski, A.N. (2014) Adverse effects of fluoride on hydrometallurgical operations. Mineral Processing and Extractive Metallurgy Review, 35 (1). pp. 44-65.

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This review addresses the detrimental effects of fluoride on the various steps which constitute any hydrometallurgical operation. It focuses on the specific examples of apatite flotation, copper bioleaching, zinc electrowinning, and the manufacture of phosphoric acid. The presence of fluoride modifies the surface characteristics of minerals altering their effective flotation. Toxicity of fluoride to bacteria directly affects the mechanisms of bioleaching. Fluoride can interfere with the adhesion of metals to cathodes and affect deposit morphology during electrodeposition. In phosphoric acid synthesis from phosphate ores, fluoride affects production efficiency by altering the crystal morphology of the gypsum by-product.

Item Type: Journal Article
Murdoch Affiliation(s): School of Chemical and Mathematical Science
School of Engineering and Information Technology
Publisher: Gordon & Breach Science Publ Inc
Copyright: © 2013 Taylor and Francis Group, LLC.
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