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Shao Y.,Kunming University of Science and Technology | Shao Y.,State Key Laboratory of Complex Nonferrous Metals Resource Clean Utilization | Li M.,Kunming University of Science and Technology | Li M.,State Key Laboratory of Complex Nonferrous Metals Resource Clean Utilization | And 2 more authors.
Energy Education Science and Technology Part A: Energy Science and Research | Year: 2014

Containing molybdenum, vanadium, aluminum, cobalt nickel and nickel, the spent catalyst is an important secondary resource. Extracting molybdenum from spent catalyst can reduce the loss of molybdenum and avoid environment pollution. It has the important sense of environment and economy. A novel technology was developed to extract molybdenum from spent catalyst. Mixture of sodium carbonate and spent catalyst was roasted at 650 for 60 min with the ratio of sodium carbonate to spent catalyst as 15%, at the leaching of leaching temperature of 80, the leaching stirring speed of 450 rpm and liquid-solid ratio of 8:1 (mL:g), the leaching rate of molybdenum reached up to 96.34%. Molybdenum is recovered effetely from spent catalyst by soda roasting water leaching. © Sila Science. Source


Jiang F.X.,Kunming University of Science and Technology | Jiang F.X.,State Key Laboratory of Complex Nonferrous Metals Resource Clean Utilization | Shao Y.H.,Kunming University of Science and Technology | Shao Y.H.,State Key Laboratory of Complex Nonferrous Metals Resource Clean Utilization | And 4 more authors.
Energy Education Science and Technology Part A: Energy Science and Research | Year: 2014

Based on the analysis of rude ore containing multi element analysis and mineral analysis, reverse flotation was adapted to recovery phosphate from phosphate ore. The optimum reverse flotation conditions with inhibitor dosage, collector dosage and collector dosage have been demonstrated. H3PO4 as inhibitor 12 kg/t, lauryl amine as collector 500 g/t, CuSO4 as activator 50 g/t, under this condition, a fine quality phosphate concentrate was obtained, the grade of P2O5¬ is 32.23%, the recovery of phosphate is 95.06% and the yield of phosphate is 82.33%. This resource of phosphate can be used reasonably. © Sila Science. All rights reserved. Source

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