development of column flotation technology at national metallurgical ...
development of column flotation technology at national metallurgical ...
development of column flotation technology at national metallurgical ...
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N<strong>at</strong>ional Metallurgical Labor<strong>at</strong>ory Madras Centre Page 7 <strong>of</strong> 10(b). Calpro Mineral Technologies India Pvt. Ltd.: The Salem district <strong>of</strong> Tamilnadu is bestowed withmany limestone deposits owned by small mine owners. Namakkal <strong>of</strong> Salem district is famous forpoultry industry. Calcium in the form <strong>of</strong> CaCO 3 , is an essential ingredient in the poultry feed and thedemand is about 100 t/d. Since limestone is used to supplement Calcium content, it should be freefrom contamin<strong>at</strong>ion <strong>of</strong> chemicals. Also the silicacontent in limestone should be less than 2%.Hence, reverse <strong>flot<strong>at</strong>ion</strong> where in gangue/silicam<strong>at</strong>erials are flo<strong>at</strong>ed was adopted. Acommercial size <strong>flot<strong>at</strong>ion</strong> <strong>column</strong> <strong>of</strong> 1.2 mdiameter was designed to tre<strong>at</strong> 6 t/h <strong>of</strong> limestoneand installed <strong>at</strong> the mines site <strong>of</strong> M/s CalproMineral Technologies India Pvt. Ltd., Salem.The <strong>column</strong> is completely autom<strong>at</strong>ic andindigenous in all respects.
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