INVESTIGATION OF CHROMITE ORE BENEFICIATION POSSIBILITIES WITH DIFFERENT GRAVITY CONCENTRATORS

IF 1.2 Q3 GEOSCIENCES, MULTIDISCIPLINARY Rudarsko-Geolosko-Naftni Zbornik Pub Date : 2023-01-01 DOI:10.17794/rgn.2023.2.9

A. Aras, H. A. Taner

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Abstract

The rapid development of industry increases the demand and importance of chromium. In this study, beneficiation possibilities of the representative chromite ore taken from the Tokat Province with a laboratory type jig, spiral concentrator, shaking table and multi gravity separator (MGS) were investigated. Appropriate particle size fractions were fed into each beneficiation device. Experimental studies were shown as a flow chart. The shaking table gave the best results for chromite beneficiation and a concentrate of 47.02% Cr2O3 grade and 94.29% recovery were obtained by using a -0.3+0.106 mm particle size fraction. It was observed that concentrates with saleable grade could be obtained as a result of the beneficiation of chromite ore with a spiral concentrator. The tailings obtained from the jig, spiral concentrator and shaking table were blended and scavenger experiments were carried out with an MGS to recover the remaining chromite in the tailings. 93.55% of the chromite in this blended sample was recovered with a grade of 34.96% Cr2O3. Hence, MGS seems to be the promising equipment for the beneficiation of tailings.

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不同重选机选矿铬铁矿的可行性研究

工业的快速发展，增加了对铬的需求和重要性。研究了实验室跳汰机、螺旋选矿机、振动台和多重选机对托卡特省某代表性铬铁矿的选矿效果。将适当粒度的馏分送入各选矿装置。实验研究用流程图表示。摇床选矿效果最佳，采用-0.3+0.106 mm粒度的精矿，Cr2O3品位为47.02%，回收率为94.29%。用螺旋选矿机对铬铁矿进行选矿，可获得可销售品位的精矿。对跳汰机、螺旋选矿厂和振动台获得的尾矿进行混配，并用MGS对尾矿中残留的铬铁矿进行了清选试验。该混合试样中铬铁矿回收率为93.55%，Cr2O3品位为34.96%。因此，MGS似乎是一种很有前途的尾矿选矿设备。

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