河北省矾山磷矿选矿厂年处理原矿120万吨,年产磷精矿38.97万吨,P_2O_534％,可做高效复合肥料。副产品是铁精矿,含全铁60％,年产量14.3万吨。 矾山磷矿矿石含P_2O_512％,铁13％。选矿工艺采用三段一闭路碎矿,磨矿分级后先浮磷,后磁选铁。由于选磷后的铁精矿含硫0.6～1.0％,超过了磁铁矿粉作炼钢原料时S≤0.15％,作炼铁原料时S≤0.30％的工业要求,故脱硫是十分必要的。 原矿中硫化物种类较多,有黄铁矿、黄 Hebei Fanshan phosphate ore processing plant annual processing 1.2 million tons of ore, with an annual output of 389,700 tons of phosphate concentrate, P_2O_534%, can be highly efficient compound fertilizer. By-product is iron concentrate, containing 60% of the total iron, the annual output of 143,000 tons. Panshan phosphate ore ore containing P_2O_512%, iron 13%. Beneficiation process using three sections of a closed-circuit crushing, grinding phosphorus after the first classification, the magnetic separation of iron. Since the iron concentrates after phosphorus pickling contain 0.6-1.0% sulfur, which exceeds the industrial requirement of S≤0.15% when the magnetite powder is used as the steelmaking raw material and S≤0.30% when the ironmaking raw material is used, desulfurization is very necessary . Sulfide ore more types, pyrite, yellow