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Antimony Mineral


Production Line

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 Shunzhi is gravity separation-flotation process.

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Process Description

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 Shunzhi is gravity separation-flotation process.

Application: Shunzhi Gravity-Flotation Process is suitable for various antimony ores.

  • The Preparation Before Processing

  • 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.

  • Gravity Separation

  • Then the three kind of minerals will go respectively into Shunzhi AM30 Jig,  Shunzhi LTA1010/2 Jig, and Shunzhi Sawtooth Wave Jig to gravity separation. The  mixted concentrate from the last stage will be go into the gravity concentrate district.

  • Flotation Separation

  • 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.

  • Hand-sorting

  • For massive bonanza in coarse particle size, Shunzhi adds handsorting in crushing flow. The massive bonanza are sorted and the tailings enter gravity separation.

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Processing Flow

  • Crushing and Grinding: After crushing antimony ore, send it to ball mills for grinding into pulp to achieve monomer dissociation of antimony minerals such as stibnite.

  • Flotation: Add collectors (such as xanthates) and frothers to the pulp to obtain antimony rough concentrate by flotation; for oxidized antimony ore, conduct sulfidation treatment first and then flotation.

  • Cleaning and Scavenging: Conduct multiple cleanings on antimony rough concentrate to remove impurities, and scavenge tailings to recover antimony minerals.

  • Gravity Separation (Optional): For antimony ore with coarse dissemination size, enrich it by gravity separation first and then purify it by flotation.

  • Thickening and Dewatering: Concentrate and dewater antimony concentrate to obtain antimony concentrate filter cake.

  • Drying and Pretreatment before Smelting: After drying the filter cake, the antimony concentrate can be sent to smelters to extract antimony by pyrometallurgy (volatilization roasting - reduction smelting) or hydrometallurgy (leaching - electrowinning).

  • Tailings Disposal: Treat flotation tailings environmentally and then stockpile them, or recover associated minerals.

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