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- W2349676864 abstract "Activated flotation,thermodynamic calculation and alternating current impedance were adopted to explore the activative flotation effects and mechanisms of sulphuric acid and oxalic acid for pyrite depressed by lime. The results of experiments show that both sulphuric acid and oxalic acid can activate pyrite and the activated effect of oxalic acid is better than that of sulphuric acid. The studies using thermodynamic calculation and alternating current impedance indicate that the activative mechanisms of sulphuric acid and oxalic acid have two facts. One is to elevate the own surface potential which results in preventing to produce hydrophile further,the other is to wipe off hydropile from the surface of pyrite in order to reveal the fresh surface of pyrite. Surface resistance Rs of pyrite surface decreases with the increase of the dosage of sulphuric acid and oxalic acid. Faraday resistance Rp increases with the increase of the dosage of sulphuric acid and oxalic acid. The results are consistent with those of flotation experiments." @default.
- W2349676864 created "2016-06-24" @default.
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- W2349676864 date "2010-01-01" @default.
- W2349676864 modified "2023-09-25" @default.
- W2349676864 title "Activated flotation of pyrite once depressed by lime" @default.
- W2349676864 hasPublicationYear "2010" @default.
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