Beneficiation Test of a Refractory Carbonate Fluorite Ore in Xinjiang
The content of calcite in a refractory carbonate-type fluorite ore in Xinjiang is as high as 53.46％,and the content of fluorite is 34.31％.Fluorite is closely intergrowth with gangue minerals such as cal-cite and quartz,and the dissemination relationship is complex.It is difficult to separate fluorite and calcite.In order to efficiently utilize the refractory carbonate fluorite ore,acidified water glass,tannin extract LAB,poly-epoxysuccinic acid PESA and aluminum sulfate are used as inhibitors,and low temperature resistant emulsi-fied oleic acid reagent YS-3 is used as collector.Under the condition of grinding fineness of -0.074 mm 68％,the fluorite concentrate with CaF2 grade of 97.84％ and recovery of 80.05％ is obtained by closed-circuit test,which provides a technical reference for the beneficiation process of carbonate fluorite ore.
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