The ore beneficiation methods mainly include hand selection, re-election (including heavy medium beneficiation), flotation, chemical beneficiation and various processing methods. The ore dressing process of the specific ore should be selected according to the physical and chemical properties of the ore type (natural type and industrial type), mineral composition, structural structure and process grain size of the useful mineral. In addition, the valuable component of the ore should be considered. the level of factors and requirements antimony metallurgical technologies.

The ore-rich ore can be selected to obtain a concentrate containing not less than 30% (quality of site). A single strontium sulfide ore containing more than 12% of ore rich in strontium can be directly smelted. Generally, less than 10% to 12% of single strontium ore is to be beneficiated.

The density, color and metallic luster of stibnite are significantly different from gangue minerals, and floatability is better. Therefore, whether a single flotation or re-election is used, and the selection is performed by hand selection. Both can get better results. The current flotation is the main method of beneficiation of stibnite. The re-election is mainly used for the beneficiation of cerium oxide ore and the classification of coarse strontium ore. The heavy medium dressing and hand selection are mainly used for the pre-selection of antimony ore. Therefore, the beneficiation process of single antimony sulfide ore has a single flotation process and a re-election-flotation combined process.

Mineral processing of mixed sulfurized oxide antimony ore. Re-election for coarse calibration. Fine-level strontium ore is used for flotation and re-election-flotation combined process. Fine-grade cerium oxide mineral or refractory strontium ore beneficiation method There are separation flotation, flotation flotation and segregation re-election, but the industrial application problems have not yet been completely solved.

The beneficiation of complex polymetallic sulphide ores containing strontium is mainly the sorting problem of stibnite and other symbiotic useful minerals, often using complex process treatment.

The selection of cerium-poor strontium ore is currently almost unrealistic. Because of the oxidized minerals in the process of crushing lungs, it is easy to be pulverized, making re-election difficult and not suitable for flotation. If the containing site is not less than 3%-5%, the sublimation treatment can be directly carried out without beneficiation to obtain antimony trioxide. The ore containing more than 10% to 20% of the ore does not require beneficiation and can be sent directly to the reduction smelting.

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