Aiyangshan Mine, Liyang, Jiangsu

The principle course of the ore dressing test of the mine is shown in the figure, the original ore is crushed and broken to less than 12mm After, greater than 1mm The granules of each group are separately selected for jigging, less than 1mm Each of the fine fractions was separately shaken. The comprehensive index of re-election is: concentrate yield is 45.38% , concentrate grade (SrSo ₄ ) is 86.12% , and recovery rate is 83.31% . The middle mines of the jigging and shaker can be recovered by three methods such as magnetic separation, re-election and flotation after crushing and grinding, but the index of the flotation scheme is the best. Note that in the flotation sludge and dispersion suppressing limonite ore, after using Na ₂ CO ₃ and Na ₂ SiO ₃ slurried, pH is preferably controlled at between 8 and 9.5, with oleic acid as collector When the temperature of the slurry is greater than 25°C . In addition, the structure of the flotation process has a greater impact on product quality. When the flotation feed is taken as 100% , the yield of flotation concentrate is 44.50% , and the concentrate grade (SrSO ₄ ) is 86.04% . It is 95.68% .

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