Resumo

ÖZGEN, S.. Modelling and optimization of clean chromite production from fine chromite tailings by a combination of multigravity separator and hydrocyclone. J. S. Afr. Inst. Min. Metall. [online]. 2012, vol.112, n.5, pp.387-394. ISSN 2411-9717.

In this study, the possibility of beneficiation of chromite tailings in the Uckopru/Fethiye-Turkey region by a combination of hydrocyclone and multigravity separator (MGS) was investigated. The two significant operational parameters of hydrocyclone, which were diameter of the apex and diameter of the vortex, and the three significant operational parameters of the MGS, which were drum speed, tilt angle, and wash water, were varied and the results were evaluated with the central composite rotatable design. In order to produce a chromite concentrate by hydrocyclone and MGS, mathematical model equations were derived by computer simulation programming, applying the least-squares method using Minitab 15. Second-order response functions were produced for the grade and recovery of chromite concentrates.

Palavras-chave : hydrocyclone; modelling; multigravity separator (MGS); optimization; waste processing.

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