SOLUTION

Chrome Ore Re-election

The beneficiation of chromite ore is mainly by re-election method. Shakers and jigs are often used in production. Sometimes re-election concentrates are re-selected with weak magnetic separation or strong magnetic separation to further increase the grade and ferrochrome ratio of chromium concentrate.

Process Introduction

The beneficiation of chromite ore is mainly by re-election method. Shakers and jigs are often used in production. Sometimes re-election concentrates are re-selected with weak magnetic separation or strong magnetic separation to further increase the grade and ferrochrome ratio of chromium concentrate.

The chrome spinel has a high iron content or a mineral symbiosis with magnetite. The concentrate obtained after ore dressing has a low chromium grade and a ferrochrome ratio, which can be considered as an ingredient for the production of ferrochrome by fire, or Treated by hydrometallurgy. For example, sodium dichromate method, chromium hydroxide method, reduction rust method, chlorination roasting acid leaching or electrolysis method. The production practice of low-grade ferrochrome concentrate by hydrometallurgy.

The platinum group elements associated with chromite ore, such as sulfide, arsenide or sulfur arsenide, can be recovered by flotation. Olivine and serpentine in the ore can be considered for comprehensive recovery for the production of refractory materials, calcium magnesium phosphate or diabase cast stone.

Production Example

 

Process Flow Chart

For chrome ore beneficiation, there are various methods such as re-election, flotation, magnetic separation, etc. hanfa will give the final beneficiation method according to the ore analysis report and the ore dressing test report. Among them, the main refining main beneficiation process is: chrome ore fine material which is ground to reasonable fineness, and the ore mixture is cleaned and classified by the difference of the specific gravity of the solid particles in the liquid by the spiral classifier. . The material is then washed by a jig and a shaker, and transported to a spiral chute to sort the fine-grained ore powder. After being sieved, it is sent to a flotation machine or a magnetic separator to enter the flotation concentrate and dehydrated by a thickener. Continue to feed the dryer to dry to obtain a dry concentrate that can be used or secondary grinding to continue extracting minerals.

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