Study of Zinc Sulfide Concentrates by DTA, TGA, and X-Ray Analyses and Their Roasting in Fluidized Bed Furnace

<table>Technological scheme of roasting in fluidized bed: 1: fluid bed furnace; 2: waste heat boiler; 3: cyclone; 4: electrostatic precipitator; 5: roll cooler; 6: ball mill.</table>

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Figure 4

Figure 4: Study of Zinc Sulfide Concentrates by DTA, TGA, and X-Ray Analyses and Their Roasting in Fluidized Bed Furnace 