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A Research on Tailings Reprocessing from Da-Hongshan

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Abstract:

The tailings in Da hongshan contains 14.56% iron, which mostly in form as hematite, and another iron in form as magnetite, maghemtite or siderite, this part just accounting 2.96%. The main gangue minerals in the tailings are 48.47% quartz and dolomite, 8.31% mica, 1.05% chlorite. According to particle size analysis, amount of iron size is enriched in +0.037mm~-0.074mm, +0.010mm~-0.019mm and-0.010mm, its distribution is 24.96%, 14.14% and 36.96% respectively. This particle researched its mineralogy then discuss a feasible flow-sheet to recycle the iron in tailings by several mineral processing tests. Finally find that magnetic-gravity separation is a useful method. The test conditions are: magnetic field strength is 0.90T in roughing separation and 0.97T in scavenging separation. The hang and vibrate of cone concentrator is used for gravity separation, its vibration frequency is 385rev/min with rotation period of the vibrate is 227.5sec/turn. The grade of obtained concentrating and middlings is 54.15%, 57.13% respectively, with recovery 28.99% , 1.00% respectively.

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Periodical:

Advanced Materials Research (Volume 813)

Pages:

221-224

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.813.221

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Online since:

September 2013

Authors:

Jie Liu, Bo Yang, Qing Li, Tao He, Lin Lu

Keywords:

Hang of Cone Concentrator, Iron Tailing, Magnetic-Gravity Separation, Vibrate of Cone Concentrator

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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