响应曲面法优化某低品位细粒锡石浮选
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摘要
根据云南文山某多金属矿选锌尾矿的MLA工艺矿物学分析,初步确立了采用浮选回收其中锡石的工艺.为进一步明确浮选药剂制度,分别进行了捕收剂用量单因素试验及调整剂用量响应曲面优化试验.单因素试验结果表明,对于该选锌尾矿,捕收剂JSY-19的最佳用量为1 200g/t,辅助捕收剂P86最佳用量为70 g/t.响应曲面优化试验结果表明,各调整剂的最佳用量分别为Na2CO3157. 75 g/t、CMC 40. 84 g/t、KT-51 362. 76 g/t,在该条件下,锡精矿品位和回收率分别可达3. 31%和72. 18%,实际浮选结果与软件优化拟合结果基本一致.采用上述试验确立的药剂用量进行浮选闭路实验,最终获得的锡精矿品位为6. 04%,回收率为85. 21%.
According to the MLA process mineralogy analysis of zinc tailings of a polymetallic mine in Wenshan,Yunnan,the process for the recovery of cassiterite by flotation was initially established. In order to further clarify the flotation reagent system,the single factor tests of the collector and the response surface tests of the regulator were performed. The single-factor test results show that,for this mineral,the best of collector JSY-19 is 1 200 g/t,and the best dosage of auxiliary collector P86 is 70 g/t. The response surface test results show that the best dosage of each regulator is Na2 CO3157. 75 g/t,CMC 40. 84 g/t,KT-51 362. 76 g/t. Under these conditions,tin concentrate grade and recovery can reach 3. 31% and 72. 18%. And the actual flotation results are basically consistent with the response surface test results. The floatation closed-circuit experiments using the dosage of reagent established in the above experiments. The final tin concentrate grade was 6. 05% and the recovery was 85. 21%.
According to the MLA process mineralogy analysis of zinc tailings of a polymetallic mine in Wenshan,Yunnan,the process for the recovery of cassiterite by flotation was initially established. In order to further clarify the flotation reagent system,the single factor tests of the collector and the response surface tests of the regulator were performed. The single-factor test results show that,for this mineral,the best of collector JSY-19 is 1 200 g/t,and the best dosage of auxiliary collector P86 is 70 g/t. The response surface test results show that the best dosage of each regulator is Na2 CO3157. 75 g/t,CMC 40. 84 g/t,KT-51 362. 76 g/t. Under these conditions,tin concentrate grade and recovery can reach 3. 31% and 72. 18%. And the actual flotation results are basically consistent with the response surface test results. The floatation closed-circuit experiments using the dosage of reagent established in the above experiments. The final tin concentrate grade was 6. 05% and the recovery was 85. 21%.
引文
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[2]Seetharaman R,Ravisankar V,Balasubramanian V.Corrosion performance of friction stir welded AA2024 aluminium alloy under salt fog conditions[J].Transactions of Nonferrous Metals Society of China,2015,25(5):1427-1438.
[3]王梦寒,王彦丽,杨海.基于响应面法的高强度钢板热冲压成形圆角破裂的工艺参数优化[J].中南大学学报(自然科学版),2014(12):4161-4164.
[4]Yang Y,Li Y,Zhang Y M,et al.Applying hybrid coagulants and polyacrylamide flocculants in the treatment of high-phosphorus hematite flotation wastewater(HHFW):Optimization through response surface methodology[J].Separation&Purification Technology,2010,76(1):72-78.
[5]Adlan M N,Palaniandy P,Aziz H A.Optimization of coagulation and dissolved air flotation(DAF)treatment of semi-aerobic landfill leachate using response surface methodology(RSM)[J].Desalination,2011,277(1-3):74-82.
[6]廖亚龙,周娟,黄斐荣,等.响应曲面法优化复杂硫化铜矿选择性浸出工艺[J].中国有色金属学报,2016,26(1):164-172.
[7]余力,刘全军,高阳,等.浙江某碳酸盐型萤石矿选矿试验研究[J].非金属矿,2016,39(3):70-73.
[8]刘杰,韩跃新,朱一民,等.细粒锡石选矿技术研究进展及展望[J].金属矿山,2014,32(10):76-81.
[9]吕中海,胡卫波,张俊,等.锡矿石选矿工艺研究现状与进展[J].现代矿业,2009(10):19-22.
[10]王晓,童雄,周永诚.锡石工艺矿物学与选矿工艺[J].矿冶,2011,20(4):15-19.
[11]赵敏捷,方建军,张铁民,等.响应曲面法优化某氧化铜矿硫化浮选[J].过程工程学报,2017,17(3):532-538.