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Conference Proceedings

Iron Ore 2007

Conference Proceedings

Iron Ore 2007

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Jigging or Dense Medium Separation - Which is the Best?

A considerable debate has arisen regarding the best route for the beneficiation of iron ore. Supporters of jigging technology claim that although the technology is old, due to recent advances in jig control and a better understanding of the separation processes within jigs, it offers significant advantages over dense medium separation, especially in terms of reduced capital and operating costs and simplicity of design. Supporters of dense medium separation claim that this technology is proven to provide the best possible separation and that the gain in efficiency over the life of the plant, compared to that of a jig, will more than offset any differences in capital or operating costs. The truth is that both viewpoints are valid and that the choice is ultimately determined by specific characteristics of the ore being treated. Factors that need to be taken into account in deciding upon the correct option include the size/density distribution of the ore to be treated, the different size fractions which must be treated (lumpy or fines), differences in yield at grade, plant layout and capital and operating costs. Each of these factors will be discussed in detail and a case study for both lumpy and fines will be presented.
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  • Jigging or Dense Medium Separation - Which is the Best?
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  • Published: 2007
  • PDF Size: 0.383 Mb.
  • Unique ID: P200706033

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