串级萃取理论在离子交换固定床吸附过程中的应用
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摘要
通过对比固定床吸附过程与串级萃取过程,发现固定床上的吸附过程相当于无穷多级溶剂萃取过程的串联。基于串级萃取的模型结构与树脂的等温吸附方程,得到不同吸附类型下穿透曲线的描述公式。以D850树脂吸附Cu(Ⅱ)离子的过程为例,对建立的模型进行验证,并且分析了各种初始参数的变化对模型精确度的影响。结果表明:该模型可以很好地描述固定床吸附过程,在不同流量与不同初始浓度条件下预测方程与穿透曲线之间的相关系数均可达到0.99以上。
By comparing the fixed-bed adsorption process and countercurrent extraction process, it is found that the adsorption process on a fixed-bed is equivalent to an infinite series of solvent extraction processes in series. Based on the model structure of the countercurrent extraction and the isothermal adsorption equation of the resin, the description formula of the penetration curve under different adsorption types was obtained. Taking the adsorption of Cu(Ⅱ) ion on D850 resin as an example, the established model was validated and the influence of various initial parameters on the accuracy of the model is analyzed. The results show that the correlation coefficient can reach more than 0.99 under different flow rates and different initial concentrations, and the correlation coefficient can reach 0.99 when the height-diameter ratio is greater than 1.59.
By comparing the fixed-bed adsorption process and countercurrent extraction process, it is found that the adsorption process on a fixed-bed is equivalent to an infinite series of solvent extraction processes in series. Based on the model structure of the countercurrent extraction and the isothermal adsorption equation of the resin, the description formula of the penetration curve under different adsorption types was obtained. Taking the adsorption of Cu(Ⅱ) ion on D850 resin as an example, the established model was validated and the influence of various initial parameters on the accuracy of the model is analyzed. The results show that the correlation coefficient can reach more than 0.99 under different flow rates and different initial concentrations, and the correlation coefficient can reach 0.99 when the height-diameter ratio is greater than 1.59.
引文
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[15]杨霞,梁真强,吕玮,郑世清.乙炔法氯乙烯合成固定床反应器的建模及分析[J].计算机与应用化学,2015,32(1):114-117.YANG Xia,LIANG Zhen-qiang,LU Wei,ZHENG Shi-qing.Modeling and analysis of fixed bed reactor for vinyl chloride synthesized from acetylene method[J].Computers and Applied Chemistry,2015,32(1):114-117.
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[19]孟凡伟,朱元洪,肖勇,王涛,贾伟玲,潘丙才.树脂固定床吸附含酚废水预测模型研究[J].油气田环境保护,2012,22(4):15-19.MENG Fan-wei,ZHU Yuan-hong,XIAO Yong,WANG Tao,JIAWei-ling,PANG Wei-cai.Study on a prediction model of resin fixed-bed adsorption of phenol wastewater[J].Environmental Protection of Oil&Gas Fields,2012,22(4):15-19.
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[22]MILLAR G J,COUPERTHWAITE S J,DE BRUYN M,CHUNW L.Ion exchange treatment of saline solutions using Lanxess S108H strong acid cation resin[J].Chemical Engineering Journal,2015,280:525-535.
[23]CHRISTOFORIDIS A K,ORFANIDIS S,PAPAGEORGIOU SK,LAZARIDOU A N,FAVVAS E P,MITROPOULOS A C.Study of Cu(II)removal by Cystoseira crinitophylla biomass in batch and continuous flow biosorption[J].Chemical Engineering Journal,2015,277:334-340.
[24]徐光宪.稀土串级萃取理论[J].化学试剂,1979(4):1-4.XU Guang-xian.Theory of counter current extraction for rare earth[J].Chemical Reagents,1979(4):1-4.
[25]廖春生,程福祥,吴声,严纯华.串级萃取理论的发展历程及最新进展[J].中国稀土学报,2017,35(1):1-8.LIAO Chun-sheng,CHENG Fu-xiang,WU Sheng,YANChun-hua.Review and recent progresses on theory of countercurrent extraction[J].Journal of the Chinese Society of Rare Earths,2017,35(1):1-8.
[26]赵中伟.钨冶炼的理论与应用[M].北京:清华大学出版社,2013.ZHAO Zhong-wei.Tungsten metallurgy:Fundamentals and applications[M].Beijing:Tsinghua University Press,2013.
[27]何炳林,黄文强.离子交换与吸附树脂[M].上海:上海科学教育出版社,1995.HE Bing-ling,HUANG Wen-qiang.Ion exchange and adsorption resin[M].Shanghai:Shanghai Technical and Educational Press,1995.
[28]姜志新,谌竟清,宋正孝.离子交换分离工程[M].天津:天津大学出版社,1992.JIANG Zhi-xin,CHEN Jing-qing,SONG Zheng-xiao.Ion exchange separation engineering[M].Tianjing:Tianjing University Press,1992.
[2]黄艳,章志昕,韩倩倩,曹顺安.国内离子交换树脂生产及应用现状与前景[J].净水技术,2010,29(5):11-16,29.HUANG Yan,ZHANG Zhi-xin,HAN Qian-qian,CAO Shu-nan.Present situation and prospect of production and application of domestic ion exchange resin[J].Water Purification Technology,2010,29(5):11-16,29.
[3]MILCHERT E,MALARCZYK-MATUSIAK K,MUSIK M.Technological aspects of vegetable oils epoxidation in the presence of ion exchange resins:A review[J].Polish Journal of Chemical Technology,2016:18(3).
[4]AHMAD A,AKHTER SIDDIQUE J,ASADUDDIN LASKARM,KUMAR R,MOHD-SETAPAR S H,KHATOON A,AHMAD SHIEKH R.New generation Amberlite XAD resin for the removal of metal ions:A review[J].Journal of Environmental Sciences,2015:31.
[5]邹涛,刘明远.离子交换法处理工业废水中重金属的现状与发展[J].山东化工,2017,46(10):190-192.ZOU Tao,LIU Ming-yuan.Present status and development of ion exchange method for treatment of heavy metals in industrial waste water[J].Shangdong Chemical Industry,2017,46(10):190-192.
[6]黎秀菀,李斯杰,陈永亨,张平,李伙生,李珂珂.改性离子交换树脂去除工业废水中高浓度氯离子[J].广东化工,2017,44(20):1-3.LI Xiu-wan,LI Si-jie,CHEN Yong-heng,ZHANG Ping,LIHo-sheng,LI Ke-ke.Removal of high concentration chloride ion in industrial wastewater by modified ion exchange[J].Guangdong Chemical Industry,2017,44(20):1-3.
[7]ALHARATI A,SWESI Y,FIATY K,CHARCOSSET C.Boron removal in water using a hybrid membrane process of ion exchange resin and microfiltration without continuous resin addition[J].Journal of Water Process Engineering,2017:17.
[8]鲁雪梅,熊鹰,张广之.树脂在重金属水处理中的应用[J].北京大学学报(自然科学版),2012,48(6):1030-1038.LU Xue-mei,XIONG Ying,ZHANG Guang-zhi.Application of resins on the treatment of waters polluted by heavy metals[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2012,48(6):1030-1038.
[9]周天潇.大孔树脂吸附法处理二氯甲烷废气研究[D].杭州:浙江大学,2014.ZHOU Tian-xiao.Study on the adsorption treatment of dichloromethane gas by macroporous resin[D].Zhejiang University,2014.
[10]GOMES H I,JONES A,ROGERSON M,GREENWAY G M,FERNANDEZ LISBONA D,BURKE I T,MAYES W M.Removal and recovery of vanadium from alkaline steel slag leachates with anion exchange resins[J].Journal of Environmental Management,2017:187.
[11]北川浩,铃木谦一郎.吸附的基础与设计[M].鹿政理,译.北京:化学工业出版社,1983.KITAGAWA H,SUZUKI I.The fundamentals and designs for adsorption[M].LU Zheng-li,transl.Beijing:Chemical Industry Press,1983.
[12]XAVIER A L P,ADARME O F H,FURTADO L M,FERREIRAG M D,SILVA L H M D,GIL L F,GURGEL L V A.Modeling adsorption of copper(II),cobalt(II)and nickel(II)metal ions from aqueous solution onto a new carboxylated sugarcane bagasse.Part II:Optimization of monocomponent fixed-bed column adsorption[J].Journal of Colloid and Interface Science,2018,516:431-445.
[13]LANDRY K A,BOYER T H.Fixed bed modeling of nonsteroidal anti-inflammatory drug removal by ion-exchange in synthetic urine:Mass removal or toxicity reduction?[J].Environmental Science&Technology,2017,51(17):10072-10080.
[14]范军.甲苯甲醇烷基化固定床反应器的模拟研究[D].上海:华东理工大学,2016.FAN Jun.Research on a fixed bed reactor of alkylation of toluene with methanol[D].Shanghai:East China University of Science and Technology,2016.
[15]杨霞,梁真强,吕玮,郑世清.乙炔法氯乙烯合成固定床反应器的建模及分析[J].计算机与应用化学,2015,32(1):114-117.YANG Xia,LIANG Zhen-qiang,LU Wei,ZHENG Shi-qing.Modeling and analysis of fixed bed reactor for vinyl chloride synthesized from acetylene method[J].Computers and Applied Chemistry,2015,32(1):114-117.
[16]叶振华.吸着分离过程基础[M].北京:化学工业出版社,1988.YE Zhen-hua,Sorption separation process basis[M].Beijing:Chemical Industry Press,1988.
[17]杨骏,陈诵英.固定床吸附废水中Cr(Ⅵ)离子的数学模型[J].化学反应工程与工艺,1996,12(2):171-176.YANG Jun,CHEN Song-ying.A fixed-bed adsorption model of Cr(Ⅵ)on activated carbon[J].Chemical Reaction Engineering and Technology,1996,12(2):171-176.
[18]赵天涛,张丽杰,全学军,赵由才,王富平.矿化垃圾固定床吸附过程和穿透曲线预测[J].环境科学学报,2008,28(8):21599-1603.ZHAO Tian-tao,ZHANG Li-jie,QUAN Xue-jun,ZHAOYou-cai,WANG Fu-ping.Adsorption of Phenols on an aged-refuse fixed-bed and models for prediction of breakthough curves[J].Acta Scientiae Circumstantiae,2008,28(8):21599-1603.
[19]孟凡伟,朱元洪,肖勇,王涛,贾伟玲,潘丙才.树脂固定床吸附含酚废水预测模型研究[J].油气田环境保护,2012,22(4):15-19.MENG Fan-wei,ZHU Yuan-hong,XIAO Yong,WANG Tao,JIAWei-ling,PANG Wei-cai.Study on a prediction model of resin fixed-bed adsorption of phenol wastewater[J].Environmental Protection of Oil&Gas Fields,2012,22(4):15-19.
[20]THOMAS H C.Heterogeneous ion exchange in a flowing system[J].Journal of the American Chemical Society,1944,66(10):1664-1666.
[21]GARCíA-SáNCHEZ J J,SOLACHE-RíOS M,MARTíNEZ-MIRANDA V,ENCISO-PEREZ R,ARTEAGA-LARIOS N V,OJEDA-ESCAMILLA M C,RODRIGUEZ-TORRES I..Experimental study of the adsorption of fluoride by modified magnetite using a continuous flow system and numerical simulation[J].Process Safety and Environmental Protection,2017,109:130-139.
[22]MILLAR G J,COUPERTHWAITE S J,DE BRUYN M,CHUNW L.Ion exchange treatment of saline solutions using Lanxess S108H strong acid cation resin[J].Chemical Engineering Journal,2015,280:525-535.
[23]CHRISTOFORIDIS A K,ORFANIDIS S,PAPAGEORGIOU SK,LAZARIDOU A N,FAVVAS E P,MITROPOULOS A C.Study of Cu(II)removal by Cystoseira crinitophylla biomass in batch and continuous flow biosorption[J].Chemical Engineering Journal,2015,277:334-340.
[24]徐光宪.稀土串级萃取理论[J].化学试剂,1979(4):1-4.XU Guang-xian.Theory of counter current extraction for rare earth[J].Chemical Reagents,1979(4):1-4.
[25]廖春生,程福祥,吴声,严纯华.串级萃取理论的发展历程及最新进展[J].中国稀土学报,2017,35(1):1-8.LIAO Chun-sheng,CHENG Fu-xiang,WU Sheng,YANChun-hua.Review and recent progresses on theory of countercurrent extraction[J].Journal of the Chinese Society of Rare Earths,2017,35(1):1-8.
[26]赵中伟.钨冶炼的理论与应用[M].北京:清华大学出版社,2013.ZHAO Zhong-wei.Tungsten metallurgy:Fundamentals and applications[M].Beijing:Tsinghua University Press,2013.
[27]何炳林,黄文强.离子交换与吸附树脂[M].上海:上海科学教育出版社,1995.HE Bing-ling,HUANG Wen-qiang.Ion exchange and adsorption resin[M].Shanghai:Shanghai Technical and Educational Press,1995.
[28]姜志新,谌竟清,宋正孝.离子交换分离工程[M].天津:天津大学出版社,1992.JIANG Zhi-xin,CHEN Jing-qing,SONG Zheng-xiao.Ion exchange separation engineering[M].Tianjing:Tianjing University Press,1992.
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