## Özet

An effect of high-energy ball milling on the mechano-chemical conversion of celestite to strontium carbonate (SrCO _{3} ) was studied. A celestite ore was ground by a planetary ball mill in a highly concentrated sodium carbonate (Na _{2} CO _{3} ) solution. The experimental study was carried out to determine the effects of milling time (15, 30, and 45 min) and Na _{2} CO _{3} concentration (1, 1.25, and 1.5 M) on the particle size and SrCO _{3} percentage of the product. A celestite/ball weight ratio was selected as 1/10 and the volume of carbonate solution was calculated for the stoichiometric amount of sulfate in celestite, as constant. After filtering, washing and drying the precipitated SrCO _{3} sludge was analyzed by XRD, SEM-EDS. Powders were leached in HCl solution and analyzed by AAS in order to determine the SrCO _{3} amount in the product. A response surface methodology was applied via the Box-Behnken method for the results of particle size and SrCO _{3} percentage. Regression model coefficients were 98.61 and 98.14%, which were the results of compatibility as experimentally obtained and predicted by the model, respectively. The maximum amount of SrCO _{3} , 96.84% and the minimum particle size, 10.297 μm were obtained with the maximum values of the parameters, 45 min, 1.5 M Na _{2} CO _{3} , and 450 rpm.

Orijinal dil | İngilizce |
---|---|

Sayfa (başlangıç-bitiş) | 324-335 |

Sayfa sayısı | 12 |

Dergi | Physicochemical Problems of Mineral Processing |

Hacim | 55 |

Basın numarası | 2 |

DOI'lar | |

Yayın durumu | Yayınlandı - 2019 |

### Bibliyografik not

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