Paste Backfill Technology: Essential Characteristics and Assessment of its Application for Mill Rejects of Uranium Ores

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• 作者：Debasis Deb ; Sreenivas T ; Gautam K. Dey…
• 关键词：Mine tailings ; Uranium ; Cemented paste backfill ; Physical and chemical properties ; Backfill strength ; Backfill rheology
• 刊名：Transactions of the Indian Institute of Metals
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：70
• 期：2
• 页码：487-495
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Metallic Materials; Materials Science, general; Tribology, Corrosion and Coatings;
• 出版者：Springer India
• ISSN：0975-1645
• 卷排序：70

文摘

This paper attempts to portray the status of mine backfill technology for disposal/handling of mill rejects, more specifically the paste backfill (PB) type, a highly relevant aspect in modern day mining industry. To date only a limited number of mines have implemented the PB systems all over the world and in India it is in nascent stage. Characterization of the mill tailings is identified as one of the key elements for design of paste backfill system. The physical, chemical and mechanical characteristics of mill tailings which influence the paste backfill quality and performance are discussed. The driver for this scientific investigation is to explore the applicability of PB system to solid mill tailings of uranium ores, in specific for those which are lean in tenor and ground to very-fine sizes for facilitating adequate liberation of valuable minerals from the  host matrix. Some of the outstanding technical issues related to the reliability of PB system design are also discussed emphasizing the need for future advancement of PB technology.