Araştırma Makalesi

Magnetic

separation has been used widely since 1955 for processing a variety of minerals

from iron ore in steel production to desulphurization of coal. The

accumulation of fines and tailing during mineral processing operations and the

increasing global demand for quality products motivated the use of the

semi-continuous pilot wet high gradient magnetic separator. In this study the

possibility of recover the chromites from the tailings of the chromite

enrichment plant, by vertical ring and pulsating high gradient wet magnetic

separator (VPHGMS) was investigated. Magnetic separation and concentration

experiments were studied on pilot scale laboratory with 1-5 tons tailing

materials. Tailings were fed first to hydrocyclone then the bottom fluid of the

cyclone was fed to magnetic separator. Pre concentrate, obtained by magnetic

separator, was beneficiated by shaking tables as a final enrichment step. On

the experimental studies different currents (100-400 amperages) were studied to

find out the effect of these parameters on the Cr_{2}O_{3}

grades and on the recovery yield. Therefore the parameters were evaluated in

collaboration with particle size distributions, grades and the quantity of

feeding and concentrate. According to experiments 300 amperage was determined

as an optimific value. With reference to results 47% Cr_{2}O_{3}

concentrates were produced from approximately 3.40 % Cr_{2}O_{3}

tailings. Also the efficiency of chromite beneficiation for magnetic and

shaking table tests was changed between 40-70 %.

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Birincil Dil | İngilizce |
---|---|

Konular | Yer Bilimleri ve Jeoloji Mühendisliği (Diğer) |

Bölüm | Araştırma Makalesi |

Yazarlar | |

Yayımlanma Tarihi | 16 Şubat 2018 |

Yayımlandığı Sayı | Yıl 2018 Cilt: 13 Sayı: 13 |

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