Antimony Ore Dressing

Based on different separation process, the antimony separation equipment can be jig machine and flotation machine, Antimony ore can be 3 categories: antimony sulfide ores-stibnite; mixed sulfide-antimony oxide ores-antimony sulfide ores and stibnite; antimony ores with complex metal sulfides, containing lead, tungsten, mercury, gold and other metal sulfides. These metals can form a metal minerals symbionts. Separation method for these antimony are mainly selection with hand, gravity separation and flotation method. For the beneficiation of complex antimony ore, two or three beneficiation combination processing are needed. Antimony ore beneficiation is relatively simple, and beneficiation process design shall be based on the ore physicochemical properties.

 

Manual hand selection is workable as there is difference in color, luster and shape between the antinony and gangue.

Gravity separation can be employed to the beneficiation of most antimony, which can be easily get the antimony ore separated due to its big specific gravity and coarse grain particles. Especially for antimony oxide enrichment, gravity separation is the most effective way considering it is difficult to get good dressing effect with flotation method.

Flotation is the most important enrichment method for antimony ore beneficiation. Antimony sulfide ore is easy to float and stibnite enrichment offen use lead salt as an activator, and then use collecting agent for flotation. The commonly used collecting agent includes butyl xanthate and mixture of sulfur and nitrogen with shale oil. Foaming agent is pine oil or the 2# oil.

For the enrichment of simple antimony sulfide ores, the enrichment line can be combination process of hand selection-gravity separation-flotation, to get massive, granular and powdered antimony ore concentrate. For antimony oxide ores enrichment, use gravity separation. For the beneficiation of sulfide-antimony oxide, the method can be flotation and gravity separation.
 
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 Gravity Jigging Plant                           Flotation Machine