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- W2549058049 abstract "The titanium content in the ilmenite is enriched by removing the iron content present in the ilmenite. The titanium content enriched ilmenite thus obtained is called Synthetic Rutile (SR) or Beneficiated Ilmenite (BI). The iron content in the ilmenite is removed by carbo-thermic reduction followed by leaching with hydrochloric acid. The leach liquor contains ferrous and ferric chloride with small percentage of free acid and fines (powdered BI generated during leaching process). The quality of leaching process is mainly governed by the higher percentage of TiO2 content (above 93%) in BI, minimum quantity of free acid (less than 1%) and minimum quantity of fines (less than 1%) in the leach liquor. The effect of sulphate (calcium zinc, sodium and potassium) ions on the leaching properties of the ilmenite was studied under laboratory conditions (30% hydrochloric acid, 75C, one atmospheric pressure and stirring at 500 rpm). The addition of sulphate ions enhance the titanium content in BI and reduced the quantity of free acid and fines generated in leach liquor. Among the different sulphate catalyst tried, the sulphates of divalent metal (calcium and magnesium) shows better performance than sulphate of monovalent metal (sodium and potassium). The maximum leaching was given by the addition of calcium sulphate and the percentage of leaching enhances to 95%, when the leaching medium contains 100 mg of calcium sulphate. The kinetic study shows that the leaching reaction is following first order kinetics." @default.
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- W2549058049 date "2013-01-01" @default.
- W2549058049 modified "2023-09-27" @default.
- W2549058049 title "Effect of Sulphate Ions on Leaching of Ilmenite with Hydrochloric Acid" @default.
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