伊朗扎加和达雷尔矿区为高碳酸盐低品位磷矿,其主要元素含量如表1。 扎加矿样为浅灰黄色,主要矿物有碳氟 磷灰石、白云石和方解石,少量石英和黄铁矿。其中白云石含量占碳酸盐的85％以上,有10％的镁被铁取代。矿石质地松软,呈细粒粉状。 达雷尔矿样为深灰色至黑色,质地坚硬,呈致密块状结构。SiO_2含量较扎加高,碳酸盐矿物中白云石、方解石各占一半。 一、浮选探索试验 浮选工艺采用一租一扫二精流程,两矿样的浮选开路试验结果见表2。 The Iranian Zakha and Darrell mines are high-carbonate, low-grade phosphate rock with the major elements listed in Table 1. Zhaga mineral sample is light gray yellow, the main minerals are fluorapatite, dolomite and calcite, a small amount of quartz and pyrite. Dolomite content of which accounted for more than 85% of the carbonate, 10% of the magnesium was replaced by iron. Ore soft texture, was fine powder. Darrell ore samples dark gray to black, hard texture, dense block structure. SiO_2 content is higher and higher, carbonate minerals in the dolomite, calcite each accounted for half. First, the flotation test Flotation process using a lease to sweep the two fine process, two samples of flotation test results in Table 2.