Beneficiation of chromite concentration waste by multi-gravity separator and highintensity induced-roll magnetic separator

الملخص EN

The applicability of both enhanced gravity concentration technique and magnetic separator for beneficiation of chromite from the magnetic tailings of Guleman-Sori / Turkey was investigated by using a multi-gravity separator (MGS) and a high-intensity induced-roll magnetic separator (HIRMS).

In the first stage, multi-gravity separator tests were carried out to produce pre-chromite concentrate and to determine for MGS the most effective conditions using parameters such as drum speed, wash water, inclination, shake amplitude, and shake frequency.

Under these operation parameters, pre-chromite concentrate including 32.6 % Cr2O3 with 89.6 % recovery could be produced by MGS.

In the second stage, a high-intensity induced-roll magnetic separator test was performed in a dry medium to produce saleable chromite concentrate from the pre-concentrate.

As the outcome of two-stage consecutive concentrations (MGS + HIRMS), a saleable chromite concentrate including 42.9 % Cr2O3 with 73.5 % recovery could be produced.