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The Research on Novel Technics for Fluorite Ore Containing Carbonate Minerals

Zhanfang Cao, Hong Peng Zhong, Tao Jiang, Liqing Li, Shuai Wang, Guang Yi Liu

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Abstract

The ore is a kind of mixed ore mainly with fluorite, which contains quartz, calcite, feldspar and sericite, belong to silicate-fluorite-calcite type ore. The content of calcite in the fluorite ore of Suichang is 5.4%. According to the characteristic of mineral, flotation tests have been done to separate fluorite. The test results show that it is difficult to separate fluorite from suichang's ore because of similar floatability of fluorite and calcite. This experiment mainly studied the joint technics on floatation and leaching. The results indicate that fluorite grade of 90.93% and recyle rate of 85.26% could be gained by KY-108 as a collector, sodium silicate and sodium humate as depressant. High grade fluorite concentrate which contains CaF2 over 97.81 %，SiO2 and CaCO3 less than 1.5% can be acquired by using leaching process, and the overall recovery of CaF2 in floatation and leaching is over 85.20%.

About this research paper

What this paper is about

The ore is a kind of mixed ore mainly with fluorite, which contains quartz, calcite, feldspar and sericite, belong to silicate-fluorite-calcite type ore. The content of calcite in the fluorite ore of Suichang is 5.4%. According to the characteristic of mineral, flotation tests have been done to separate fluorite. The test results show that it is difficult to separate fluorite from suichang's ore because of similar floatability of fluorite and calcite. This experiment mainly studied the joint technics on floatation and leaching. The results indicate that fluorite grade of 90.93% and recyle rate of 85.26% could be gained by KY-108 as a collector, sodium silicate and sodium humate as depressant. High grade fluorite concentrate which contains CaF2 over 97.81 %，SiO2 and CaCO3 less than 1.5% can be acquired by using leaching process, and the overall recovery of CaF2 in floatation and leaching is over 85.20%.

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Available abstract

The ore is a kind of mixed ore mainly with fluorite, which contains quartz, calcite, feldspar and sericite, belong to silicate-fluorite-calcite type ore. The content of calcite in the fluorite ore of Suichang is 5.4%. According to the characteristic of mineral, flotation tests have been done to separate fluorite. The test results show that it is difficult to separate fluorite from suichang's ore because of similar floatability of fluorite and calcite. This experiment mainly studied the joint technics on floatation and leaching. The results indicate that fluorite grade of 90.93% and recyle rate of 85.26% could be gained by KY-108 as a collector, sodium silicate and sodium humate as depressant. High grade fluorite concentrate which contains CaF2 over 97.81 %，SiO2 and CaCO3 less than 1.5% can be acquired by using leaching process, and the overall recovery of CaF2 in floatation and leaching is over 85.20%.

Key concepts: Fluorite, Calcite, Sericite, Leaching (pedology), Silicate minerals, Silicate, Feldspar, Quartz

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