四种表面活性剂对改性脂肪酸捕收剂的增效作用
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摘要
考察了四种表面活性剂在菱锰矿浮选中对改性脂肪酸类捕收剂Dd-21的增效作用。结果表明,表面活性剂的添加,可以提高捕收剂对菱锰矿的选择性。当添加表面活性剂为吐温-80时,回收率从49.10%提高到84.17%。通过液体表面张力测试、粒度分析、动电位测试及红外光谱分析方法揭示了表面活性剂的增效机理。该机理表现为增效剂物理吸附于矿物表面,有效促进了捕收剂的化学吸附作用,且增效剂的加入会与捕收剂在菱锰矿表面产生共吸附。
We have investigated the synergistic effect of four different types of surfactants on the modified fatty acid collector Dd-21 considering the flotation of rhodochrosite. The results showed that the selectivity of the collector for rhodochrosite was improved by adding surfactant,and the mineral recovery was enhanced from 49. 10%to 84. 17% as the surfactant was Tween-80. Moreover,the enhancement mechanism of synergist has been studied by different methods including the surface tension test,particle size analysis,zeta potential test and FTIR spectroscopy,which indicates the adsorption of synergist on mineral surface promotes the chemical adsorption of collector,and the co-adsorption between collector and synergist will take place on the surface of rhodochrosite.
We have investigated the synergistic effect of four different types of surfactants on the modified fatty acid collector Dd-21 considering the flotation of rhodochrosite. The results showed that the selectivity of the collector for rhodochrosite was improved by adding surfactant,and the mineral recovery was enhanced from 49. 10%to 84. 17% as the surfactant was Tween-80. Moreover,the enhancement mechanism of synergist has been studied by different methods including the surface tension test,particle size analysis,zeta potential test and FTIR spectroscopy,which indicates the adsorption of synergist on mineral surface promotes the chemical adsorption of collector,and the co-adsorption between collector and synergist will take place on the surface of rhodochrosite.
引文
[1]张刚.碳酸锰矿浮选的界面化学研究:[D].长沙:中南大学.2011.
[2]SIS H,CHANDER S.Adsorption and contact angle of single and binary mixtures of surfactants on apatite[J].Minerals Engineering,2003,16(9):839-848.
[3]Guimaraes R C,Araujo A C,Peres A E C.Reagents in igneous phosphate ores flotation[J].Minerals Engineering,2005,18(2):199-204.
[4]谢恒星,李冬莲,张傲时.增效剂Tween 80对磷灰石浮选特性的影响[J].金属矿山,1998(9):32-33,44.
[5]罗惠华,汤家焰,李成秀,等.不同表面活性剂对改性脂肪酸捕收剂的增效作用[J].武汉工程大学学报,2013,35(3):30-33.
[6]孙志斌,张禹负,李彩云,等.阴离子与非离子表面活性剂混合体系的胶束性质[J].石油勘探与开发,2004,31(3):125-128.
[7]Schwuger M J.Mechanism of interaction between ionic surfactants and polyglycol ethers in water[J].Journal of Colloid and Interface Science,1973,43(2):491-498.
[8]Hua X Y,Rosen M J.Calculation of the coefficient in the Gibbs equation for the adsorption of ionic surfactants from aqueous binary mixtures with nonionic surfactants[J].Journal of Colloid and Interface Science,1982,87(2):469-477.
[9]Hanumantha Rao K,Forssberg K S E.Mixed collector systems in flotation[J].Int Miner Process,1997,51(1):67-79.
[10]Shina K,Nakagawa T,Tamamushi B I,et al.Colloidal Surfactants[M].New York:Academic Press,1963.
[11]曹学锋,胡岳华,蒋玉仁,等.新型捕收剂N十二烷基1,3丙二胺浮选铝硅酸盐类矿物的机理[J].中国有色金属学报,2001,11(4):693-696.
[12]胡岳华,陈湘清,王毓华.磷酸盐对一水硬铝石和高岭石浮选的选择性作用[J].中国有色金属学报,2003,13(1):222-228.
[13]孙传尧,印万忠.硅酸盐矿物浮选原理[M].北京:科学出版社,2001.90-101.
[14]Kobayashi I,Mukataka S,Nakajima M.Effects of type and physical properties of oil phase on oil-in-water emulsion droplet formation in straight-through microchannel emulsification,experimental and CFD studies[J].Langmuir,2005,21(13):5722-5730.
[15]闻辂.矿物红外光谱学[M].重庆:重庆大学出版社,1989.
[16]LO弗利波夫.非硫化矿物浮选中混合捕收剂的协同作用[J].成建,张覃,译.国外金属矿选矿,2007(10):13-16.
[17]HOU Qingfen,LU Xiancai,HU Boxing,et al.Adsorption behaviour of Tween80 on graphite[J].Adsorption Science and Technology,2005,23(1):27-36.
[2]SIS H,CHANDER S.Adsorption and contact angle of single and binary mixtures of surfactants on apatite[J].Minerals Engineering,2003,16(9):839-848.
[3]Guimaraes R C,Araujo A C,Peres A E C.Reagents in igneous phosphate ores flotation[J].Minerals Engineering,2005,18(2):199-204.
[4]谢恒星,李冬莲,张傲时.增效剂Tween 80对磷灰石浮选特性的影响[J].金属矿山,1998(9):32-33,44.
[5]罗惠华,汤家焰,李成秀,等.不同表面活性剂对改性脂肪酸捕收剂的增效作用[J].武汉工程大学学报,2013,35(3):30-33.
[6]孙志斌,张禹负,李彩云,等.阴离子与非离子表面活性剂混合体系的胶束性质[J].石油勘探与开发,2004,31(3):125-128.
[7]Schwuger M J.Mechanism of interaction between ionic surfactants and polyglycol ethers in water[J].Journal of Colloid and Interface Science,1973,43(2):491-498.
[8]Hua X Y,Rosen M J.Calculation of the coefficient in the Gibbs equation for the adsorption of ionic surfactants from aqueous binary mixtures with nonionic surfactants[J].Journal of Colloid and Interface Science,1982,87(2):469-477.
[9]Hanumantha Rao K,Forssberg K S E.Mixed collector systems in flotation[J].Int Miner Process,1997,51(1):67-79.
[10]Shina K,Nakagawa T,Tamamushi B I,et al.Colloidal Surfactants[M].New York:Academic Press,1963.
[11]曹学锋,胡岳华,蒋玉仁,等.新型捕收剂N十二烷基1,3丙二胺浮选铝硅酸盐类矿物的机理[J].中国有色金属学报,2001,11(4):693-696.
[12]胡岳华,陈湘清,王毓华.磷酸盐对一水硬铝石和高岭石浮选的选择性作用[J].中国有色金属学报,2003,13(1):222-228.
[13]孙传尧,印万忠.硅酸盐矿物浮选原理[M].北京:科学出版社,2001.90-101.
[14]Kobayashi I,Mukataka S,Nakajima M.Effects of type and physical properties of oil phase on oil-in-water emulsion droplet formation in straight-through microchannel emulsification,experimental and CFD studies[J].Langmuir,2005,21(13):5722-5730.
[15]闻辂.矿物红外光谱学[M].重庆:重庆大学出版社,1989.
[16]LO弗利波夫.非硫化矿物浮选中混合捕收剂的协同作用[J].成建,张覃,译.国外金属矿选矿,2007(10):13-16.
[17]HOU Qingfen,LU Xiancai,HU Boxing,et al.Adsorption behaviour of Tween80 on graphite[J].Adsorption Science and Technology,2005,23(1):27-36.