沙特图赖夫磷矿选矿试验研究

沙特图赖夫磷矿P2O5品位19.18%，MgO品位7.31%，属硅钙质碳酸盐矿，为获得含镁较低的高品位磷精矿，对其进行选矿试验研究。结果表明：CYH系列捕收剂能更好地实现磷、镁分离。在磨矿细度为-0.074 mm含量占85.64%的条件下，以磷酸与硫酸组成的混合酸为磷矿物抑制剂，CYH-001为捕收剂反浮选白云石，通过闭路试验可获得磷精矿P2O5品位32.15%，回收率72.36%；MgO品位0.77%。

Experiment Study on Mineral Processing of Phosphorus Ore in Turaif Saudi Arabia

There is 19.18% P2O5 and 7.31% MgO in the phosphorus ore from Turaif Saudi Arabia, which belong to the silicon calcium carbonate minerals. Beneifciation experiments were conducted on the ore to obtain the high quality of phosphorus concentrate with low grade magnesium. The results indicated that the series collector of CYH can achieve the separation of phosphorus and magnesium. At the grinding ifneness of 85.64% passing 0.074 mm, dolomite reverse lfotation with mixed acid of phosphoric acid and sulfuric acid as depressor, and CYH-001 as the collector, by the closed-circuit lfow test, it obtained the phosphorus concentrate of theP2O5 grade 32.15% and the recovery rate 72.36%, and the MgO grade 0.77%.