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کنگره و نمایشگاه بین المللی معدن
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همایش ، رویداد ، ژورنال
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  • flotation of high grade iron sample of esfordi phosphate ore in order to increase phosphate grade and recovery

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    • تاریخ ارائه: 1389/07/20
    • تاریخ انتشار در تی پی بین: 1389/07/20
    • تعداد بازدید: 749
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in order to processing the esfordi phosphate ore, a sample was prepared from rocks contains high amount of apatite and quartz and iron minerals such as magnetite and hematite these rocks contain 50% to 60% fe2o3 and 5% to 20% p2o5. regarding researches that have been done before, flotation was chosen as the best process for treating this sample. first, optimum levels of variations were determined by some experiment and then a test was conducted in the optimum conditions. the sample was ground for 12 minutes and desliming was performed in pressure of .5 kg/cm2. optimum conditions were determined to reach maximum recovery and grade of phosphate and minimum recovery and grade of iron. 300 g/t of flo-ys20 was chosen as collector and frother, 40 g/t of lina-z80 was used as collector and frother, 400 g/t starch was used as depressant and optimum ph determined to be 9.5. in these conditions, phosphate was floated and two stages of cleaning have been done on the product. final phosphate product contained 34.4% p2o5 and 2.8 fe2o3, recovery of flotation was 94% and total recovery of the process was 83%.

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