REAGENTS SELECTION AND OPTIMIZATION FOR PYROLUSITE FLOTATION

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MEHDILO A.; Bazdid B.; IRANNAJAD M.

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Seminar: IRANIAN CHEMISTRY CONGRESS
Year:2013 | Issue:16

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Title

REAGENTS SELECTION AND OPTIMIZATION FOR PYROLUSITE FLOTATION

Author(s)

MEHDILO A. | Bazdid B. | IRANNAJAD M. | Issue Writer Certificate

Keywords

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Abstract

PYROLUSITE (MNO2) CONTAINING 63.2% MN IS THE MOST COMMON MANGANESE MINERAL [1].EACH TYPE OF A MANGANESE DEPOSIT IS A PROBLEM BY ITSELF IN THE MATTER OF SELECTION OF A PROPER METHOD OF CONCENTRATION, DEPENDING ON THE MANGANESE MINERALS AND THEIR GANGUE CONSTITUENTS [2].FLOTATION IS ONE OF THE DEVELOPED PROCESSES FOR THE BENEFICIATION OF LOWER GRADE AND MORE REFRACTORY RESOURCES ESPECIALLY IN FINE SIZE FRACTIONS [3, 4].CHARAGAH ORE DEPOSIT (LOCATED 82 KM NORTHWEST OF TABRIZ) CONTAINING 17% PYROLUSITE AND 78% CALCITE AS A MAIN GANGUE MINERAL IS KNOWN AS A SUITABLE RESOURCE FOR PRODUCTION OF MANGANESE PRODUCTS. THE POSSIBILITY OF PYROLUSITE SEPARATION USING FLOTATION METHOD WAS INVESTIGATED IN THIS WORK.A NUMBER OF DIFFERENT REAGENTS WERE EXAMINED FOR THE BEST SUIT FOR THE PURIFIED PYROLUSITE-CALCITE FLOTATION. ARMAC C AND ARMAC T AS CATIONIC COLLECTORS AND THE ANIONIC COLLECTORS INCLUDING SODIUM OLEATE AND OLEIC ACID WERE USED IN THE FLOTATION EXPERIMENTS. USING ALL OF THESE COLLECTORS FLOTATION RECOVERY OF CALCITE IS MORE THAN THAT OF PYROLUSITE ONE AND A SELECTIVE FLOTATION WAS NOT ACHIEVED. SEVERAL ACTIVATION AND DEPRESSANT REAGENTS WERE USED IN THE PRESENCE OF DIFFERENT COLLECTORS. IT WAS FOUND THAT COPPER SULPHATE (CUSO4.5H2O) ACTS AS PYROLUSITE ACTIVATOR AND CALCITE DEPRESSANT AGENT IN A DOSAGE RANGE OF 250 TO 1250 G/T. IT DEPRESSES BOTH MINERALS AT HIGH DOSAGES. THE BEST RESULTS WERE OBTAINED USING 1000 G/T COPPER SULPHATE IN THE PRESENCE OF 10-4 M OLEIC ACID AT PH=8. AT THESE CONDITION THE FLOTATION RECOVERY OF PYROLUSITE AND CALCITE ARE 83.6% AND 38%, RESPECTIVELY. THERE WAS NO FLOTATION IMPROVEMENT WHEN DEPRESSANTS WERE USED IN CONJUNCTION WITH MENTIONED COLLECTORS.

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APA: Copy

MEHDILO, A., Bazdid, B., & IRANNAJAD, M.. (2013). REAGENTS SELECTION AND OPTIMIZATION FOR PYROLUSITE FLOTATION. IRANIAN CHEMISTRY CONGRESS. SID. https://sid.ir/paper/914388/en

Vancouver: Copy

MEHDILO A., Bazdid B., IRANNAJAD M.. REAGENTS SELECTION AND OPTIMIZATION FOR PYROLUSITE FLOTATION. 2013. Available from: https://sid.ir/paper/914388/en

IEEE: Copy

A. MEHDILO, B. Bazdid, and M. IRANNAJAD, “REAGENTS SELECTION AND OPTIMIZATION FOR PYROLUSITE FLOTATION,” presented at the IRANIAN CHEMISTRY CONGRESS. 2013, [Online]. Available: https://sid.ir/paper/914388/en

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