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Antimony Mineral Processing

Antimony Mineral Processing

【Process Introduction】

Proportion of antimony ore is far greater than proportion of gangue, so it will be separated by using the method gravity separation. This method has many features, high efficiency, energy saving, and environment protection, which can make the low-grade ore enrichment advance. After gravity separation, the antimony will be purified by floatation. So the processing method of Xinhai is gravity separation-flotation process.


Xinhai’s gravity separation-flotation process is applied to all kinds of antimony ore.

Check Process Flow >>

[Process Description]

Xinhai's  gravity separation-flotation process

The ore after hand sorting will go through coarse  crushing and fine crushing, during which the size of mineral should be under  30mm, and screening classification have three size fractions, 8-30mm, 2-8mm,  0-2mm. then the three kind of minerals will go respectively into Xinhai AM30 Jig,  Xinhai LTA1010/2 Jig, and Xinhai Sawtooth Wave Jig to gravity separation. The  mixted concentrate from the last stage will be go into the gravity concentrate district.  Then after the process of gravity, there will be a process of flotation, the  tailings from the preview gravity separation will be grinded, separated,  stirred, and separated. And the flotation will apply the process of one roughing, three cleanings, and two scavenging. Then high grade antimony fine powder will be produced. The tailings from the flotation will be reelected by  shaking table to recycle the fine antimony particles, which we can get high  grade antimony concentrate and tailings.


In one of Xinhai's project, antimony  content is 3.19%, among which the share of antimony sulfide is about 95.30%,  and a small amount of antimony is existed in valentinite or antimonite, about  4.70%. Carbon content of the ore is 6.43%, in which the inorganic carbon have up  to 5.46%, and is antimony sulfide with high-carbon and very complex for  dressing. After multi scheme of test, Xinhai finally decided to use gravity  separation-flotation process to recycle the antimony ore, and in the test the  grade of antimony is 58.71%, the recovery rate of mixed antimony concentrate Is  93.75%. xinhai achieved the maximum intensity of the recovery of the antimony  ore, which reduced the environmental pollution caused by tailings and also  gained excellent economic benefit.

[ Process Flow ]

Antimony Mineral Processing


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