资源描述
四川会东磷矿石反浮选试验一、原矿性质:该磷矿石为原生矿,矿石主要呈灰黑色,含少量灰白色,原矿氧化镁含量较高。二、原矿样多元素分析:儿系P2O5MgOFeOAl 2QCaOSiO2MnOF酸不熔物含量%27.205.370.771.2346.852.400.352.742.82三、试验方案:将矿石破碎至-2mm下,充分混匀,经磨矿分样后进行一次粗反开路浮选 流程试验。四、试验药剂及配制浓度:名称2#油H2SOHPOH969浓度原液1052五、试验条件:1 .试验温度:室温19c2 .试验浓度:331%3 .试验细度:-200 目占 61.47%、73.00%、87.88%4 .试验PH值:5-65 .试验时间:10分钟6 .试验线速度:4.66m/s六、试验流程:试验流程为一次粗反开路浮选流程,见下图:原矿粗反精矿尾矿七、试验数据:1 .试验(一)a.原矿筛析:-200目含量为61.47% (见下表.1.)表.1.粒级(目)产率%P2O%MgO%回收率备注厂P2O%MgO%+10011.0130.171.6412.263.71+ 100目粒级BO 品位30.17%最 高,磷矿物结晶 较粗;-320目粒 级部分过磨。-100+20027.5229.904.0930.3923.30-200+32028.4427.655.4129.0331.75-320+40021.1123.615.1918.3222.68-40011.9222.717.5610.0018.562100.0027.084.85100.00100.00b.试验结果:(见下表.2.细度-200目占61.47%)表.2.药剂制度产品产率%P2Q%MgO%回收率厂P2Q%MgO%2#油:4滴H2SO: 1.0 Kg/t.aHPO: 4.0 Kg/t.a出9 : 3.0 Kg/t. a精矿69.9133.752.2786.1929.72尾矿30.0912.5612.4813.8170.28原矿100.0027.375.35100.00100.002#油:4滴H2SO: 1.0 Kg/t.aHPO: 4.0 Kg/t.a2XP-64 : 3.0 Kg/t. a精矿65.1534.651.6783.0422.20尾矿34.8513.2310.9716.9677.80原矿100.0027.184.91100.00100.002#油:4滴H2SO: 1.0 Kg/t. aHPO: 4.0 Kg/t. a 出9 : 2.0Kg/t. a精矿70.5734.151.9787.6028.90尾矿29.4311.6011.6312.4071.10原矿100.0027.514.81100.00100.002.试验(二)a.原矿筛析:-200目含量为73.00% (见下表.3.)表3粒级(目)产率%P2O5%MgO9回收率9P2Q%MgO%+ 1005.0031.162.855.662.92-100+20022.0031.522.9125.1313.33-200+32036.0028.374.2437.0231.88-320+40026.0024.576.4223.1734.79-40011.0022.617.469.0217.082100.0027.584.80100.00100.00b.试验结果:(见下表.4.)表.4.药剂制度产品产率%P2Q%MgO%回收率P2Q%MgO%2#油:4滴H2SO:0.5 Kg/t.aHPO:3.0 Kg/t.a出9 :0.5 Kg/t.a精矿78.7032.213.0992.0544.34nr21.3010.2714.317.9555.66原矿100.0027.545.48100.00100.002#油:4滴H2SO:1.0 Kg/t.aHPO:4.0 Kg/t.a出9 :3.0 Kg/t.a精矿61.4534.691.2178.5613.68nr38.5515.1112.1921.4486.32原矿100.0027.145.41100.00100.002#油:4滴H2SO:0.5 Kg/t.aHPO:5.0 Kg/t.a计69:1.5 Kg/t.a精矿65.7635.081.3184.5418.26nr34.2412.3211.2315.4681.74原矿100.0027.294.71100.00100.002#油:4滴H2SO:1.0 Kg/t.aHPO:6.0 Kg/t.a出9:1.5 Kg/t.a精矿72.1634.051.7189.7023.70nr27.8410.1214.2110.3076.30原矿100.0027.395.19100.00100.002#油:4滴H2SO:1.0 Kg/t.aHPO:7.0 Kg/t.a出9:1.5 Kg/t.a精矿70.6934.941.7389.0422.51尾矿29.3110.3614.3310.9677.49原矿100.0027.745.42100.00100.003.试验(三):a.原矿筛析:-200目含量为87.88% (见下表.5.)表.5.粒级(目)产率%P2O5%MgO9回收率/P2。MgO%+ 1001.0123.343.990.930.66-100+20011.1125.354.0210.867.39-200+32038.8929.084.9943.5831.86-320+40027.2723.367.5424.5533.83-40021.7223.987.3820.0826.262100.0025.956.09100.00100.00b.试验结果:(-200目占87.88%,见下表6)表.6.药剂制度产品产率%P2Q%MgO%回收率JP2。MgO%2#油:4滴H2SO: 1.0 Kg/t.aHPO: 4.0 Kg/t.a出9 : 3.0 Kg/t. a精矿64.7434.411.4582.4917.67尾矿35.2613.4212.4117.5182.33原矿100.0027.015.32100.00100.002#油:4滴H2SO: 1.0 Kg/t.aHPO: 4.0 Kg/t.a2XP-64 : 3.0 Kg/t. a精矿63.6634.631.0582.2112.76尾矿36.3413.1312.6017.7987.24原矿100.0026.825.25100.00100.002#油:4滴H2SQ:1.0 Kg/t.aHPQ:4.0 Kg/t.a5 :3.0Kg/t.a精矿63.8333.432.1678.2325.99尾矿36.1716.4310.8721.7774.01原矿100.0027.285.31100.00100.00八、结论及建议:1 .四川会东热水塘磷矿经过反浮选选矿试验,可以将P2Q品位从27.20%提高到34.05%, MgO位从5.37%W到1.71%,精矿回收率89.70%,除镁率: 76.30%。2 .试验(二)原矿粒级筛析表明:-400目粒级MgOfe位最高为7.46%, 其次-320+400目粒级MgOa位为6.42%,说明镁结晶较细;-100+200目粒级 P2Q品位31.52%最高,磷矿物结晶较粗,-320目粒级磷矿物单体部分过磨;磨 矿细度-200目占73.00%寸单体解离较完全。3 .该磷矿石可选性较好,原矿 F2Q品位27.20%低,MgQ位5.37元量 较高;原矿石为原生矿,磷矿物单体结晶较粗,而杂质镁的单体结晶较细,生 产时磨矿不能过细,否则药剂的选择性下降易导致精矿氧化镁的含量偏高,除 镁不理想。四川会东热水塘磷矿石反浮选试验报告矿山生产技术处选矿实验室2010年 4 月 28 日
展开阅读全文