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为了给铁品位在50%左右的印度某赤铁矿洗矿溢流的利用提供依据,采用细筛—强磁选—阴离子反浮选流程和细筛—螺旋溜槽—强磁选—阴离子反浮选流程对该洗矿溢流进行了选矿试验。试验结果表明,在-0.076 mm占75%的磨矿细度下,两流程分别可取得精矿铁品位为67.01%,回收率为87.77%和精矿铁品位为67.12%,回收率为89.71%的选别指标。鉴于后一流程可比前一流程减少约1/3的浮选量,因此推荐采用后一流程。
In order to provide a basis for the utilization of a hematite ore washing overflow with an iron grade of about 50% in India, a fine sieve-strong magnetic separation-anion reverse flotation process and a fine sieve-spiral chute-ferromagnetic separation-anion reverse floatation The election process of the ore washing overflow beneficiation test. The test results show that the grade of concentrate ore is 67.01%, the recovery rate is 87.77% and the grade of concentrate ore is 67.12% with the recovery rate of 89.71% under the grinding fineness of -0.076 mm and 75% The sorting index. In view of the latter process can be reduced by about 1/3 of the previous process of flotation, it is recommended to adopt the latter process.