Recovery of Rare Earths from Spent FCC Catalysts by Solvent Extraction Using Saponified 2-ethylhexyl phosphoric acid-2-ethylhexyl ester(EHEHPA)
详细信息 查看官网全文
- 英文论文题名：Recovery of Rare Earths from Spent FCC Catalysts by Solvent Extraction Using Saponified 2-ethylhexyl phosphoric acid-2-ethylhexyl ester(EHEHPA)
- 论文作者：YE Sishi ; JING Yu ; WANG Yundong ; FEI Weiyang
- 英文论文作者：YE Sishi ; JING Yu ; WANG Yundong ; FEI Weiyang ; The State Key Laboratory of Chemical Engineering ; Department of Chemical Engineering ; Tsinghua University
- 年：2016
- 作者机构：The State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University;
- 英文论文关键词：recovery ; rare earths ; fluid catalytic cracking catalysts ; saponified P507-kerosene system
- 会议召开时间：2016-09-06
- 会议录名称：2016全国稀土冶炼与环境保护技术交流会会刊
- 语种：英文
- 分类号：TF845
- 学会代码：ZGXT
- 会议名称：2016全国稀土冶炼与环境保护技术交流会
- 会议地点：中国广西南宁
- 主办单位：中国稀土学会环境保护专业委员会、中国稀土学会化学和湿法冶金专业委员会、中国稀土学会火法冶金专业委员会
- 学会名称：中国稀土学会
- 页数：9
- 文件大小：612k
- 原文格式：O
- 会议级别：全国
摘要
A process to recover Rare Earth(RE) metals from spent fluid catalytic cracking(FCC) catalysts by solvent extraction was studied,using saponified 2-ethylhexyl phosphoric acid-2-ethylhexyl ester(EHEHPA or P507).The recovery process involved three important steps:1) leaching REs(mainly lanthanum and cerium);2) solvent extraction by applying saponified P507-kerosene system;3) stripping.Experiments to assure the optimal operating conditions were conducted.The results indicated that rare earth can be regained effectively from saponified P507-kerosene-HCI system.At room temperature of 25℃,a catalysts capacity of 10 g with110 mL 1 mol/L HCI can achieve a leaching efficiency higher than 85%.For extraction,initial pH value of 3.17,O/A ratio of 2:1 with extractants' saponification rate of 20%can sustain 100%efficiency.In stripping section,1mol/L HCI with O/A ratio of 1:1 lead to a back-extraction efficiency of 96%.In this procedure,the disposal of the abundant spent FCC catalysts could be settled as well as the recovery of rare earths from spent FCC catalysts,leading to a relieve of the severe environmental issues.
A process to recover Rare Earth(RE) metals from spent fluid catalytic cracking(FCC) catalysts by solvent extraction was studied,using saponified 2-ethylhexyl phosphoric acid-2-ethylhexyl ester(EHEHPA or P507).The recovery process involved three important steps:1) leaching REs(mainly lanthanum and cerium);2) solvent extraction by applying saponified P507-kerosene system;3) stripping.Experiments to assure the optimal operating conditions were conducted.The results indicated that rare earth can be regained effectively from saponified P507-kerosene-HCI system.At room temperature of 25℃,a catalysts capacity of 10 g with110 mL 1 mol/L HCI can achieve a leaching efficiency higher than 85%.For extraction,initial pH value of 3.17,O/A ratio of 2:1 with extractants' saponification rate of 20%can sustain 100%efficiency.In stripping section,1mol/L HCI with O/A ratio of 1:1 lead to a back-extraction efficiency of 96%.In this procedure,the disposal of the abundant spent FCC catalysts could be settled as well as the recovery of rare earths from spent FCC catalysts,leading to a relieve of the severe environmental issues.
A process to recover Rare Earth(RE) metals from spent fluid catalytic cracking(FCC) catalysts by solvent extraction was studied,using saponified 2-ethylhexyl phosphoric acid-2-ethylhexyl ester(EHEHPA or P507).The recovery process involved three important steps:1) leaching REs(mainly lanthanum and cerium);2) solvent extraction by applying saponified P507-kerosene system;3) stripping.Experiments to assure the optimal operating conditions were conducted.The results indicated that rare earth can be regained effectively from saponified P507-kerosene-HCI system.At room temperature of 25℃,a catalysts capacity of 10 g with110 mL 1 mol/L HCI can achieve a leaching efficiency higher than 85%.For extraction,initial pH value of 3.17,O/A ratio of 2:1 with extractants' saponification rate of 20%can sustain 100%efficiency.In stripping section,1mol/L HCI with O/A ratio of 1:1 lead to a back-extraction efficiency of 96%.In this procedure,the disposal of the abundant spent FCC catalysts could be settled as well as the recovery of rare earths from spent FCC catalysts,leading to a relieve of the severe environmental issues.
引文
[1]Eduardo F.S.A.,Flavia E.T.,Fatima M.Z.Z.,2013.The role of rare earth elements in zeolites and cracking catalysts.Catalysis Today.218-219,115-122.
[2]He M.-Y.,2012.The hydrothermal chemistry of the manufacturing process of different Y type zeolites.Catalyst Communications.1,4-6.
[3]Scherzer J.,1993.Chapter 5 Correlation Between Catalyst Formulation and Catalytic Properties.Studies in Surface Science and Catalysis.76,145-182.
[4]Woltermann G.M.,Magee J.S.,Griffith S.D.,1993.Chapter4 Commercial Preparation and Characterization of FCC Catalysts.Studies in Surface Science and Catalysis.76,105-144.
[5]Tynjala P.,Pakkanen T.T.,1996.Acidic properties of zsm-5 zeolite modified with Ba2+,AI3+and La3+ion-exchange.Journal of Molecular Catalysis A:Chemical.110,153-161.
[6]Thiam L.C.,Subhash B.,2009.Effect of catalyst additives on the production of biofuels from palm oil cracking in a transport riser reactor.Bioresource Technology.100,2540-2545.
[7]Yu S.-Q.,Tian H.-P,Dai Z.-Y,Long J.,2010.Mechanism of the Influence of Lanthanum and Cerium on the Stability of Y Zeolite.Chinese Journal of Catalysis.31(10),1263-1270.
[8]Gabriela de la P.,Ulises S.,1996.Conversion of methylcyclopentane on rare earth exchanged Y zeolite FCC catalysts.Applied Catalysis A:General.144,147-158.
[9]Trigueiro F.E.,Monteiro D.F.J.,Zotin F.M.Z.,2002.SousaAguiar E F.Thermal stability of Y zeolites containing different rare earth cations.Journal of Alloys and Compounds.344,337-341.
[10]Marcello S.R.,Rob van V.,Laurent H.,2007.Chapter 24Zeolites in hydrocarbon processing.Studies in Surface Science and Catalysis.168,855-913.
[11]Du X.-H.,Gao X.-H.,Zhang H.-T.,Li X.-L,Liu P.-S.,2013.Effect of cation location on the hydrothermal stability of rare earth-exchanged Y zeolites.Catalysis Communications.35,17-22.
[12]Wallenstein D.,Schafer K.,Harding R.H.,2015.Impact of rare earth concentration and matrix modification in FCC catalysts on their catalytic performance in a wide array of operational parameters.Applied Catalysis A:General.502:27-41.
[13]Ferella F.,Innocenzi V.,Maggiore R,2016.Oil refining spent catalysts:A review of possible recycling technologies.Resources,Conservation and Recycling.108,10-20.
[14]Li X.-Q.,Hu H.-L.,Sun S.-F.,Li Y.-S.,Mao X.-Q.,Li X.,2015.Identification of Rare Earth-containing Wastes and Detection of Rare Earth Content in The Wastes.Chinese Rare Earths.36(4),138-143.
[15]Zhao Z.X.,Qiu Z.F.,Yang J.,Cao L.M.,Zhang W.,2015.Research Progresses in Recovery of Rare Earth from Spent FCC Catalyst and Automobile Exhaust Purifying Catalyst.Environmental Protection of Chemical Industry.35(6),603-608.
[16]Innocenzi V.,Ferella F.,Michelis I.D.,Veglio F.,2015.Treatment of fluid catalytic cracking spent catalysts to recover lanthanum and cerium:Comparison between selective precipitation and solvent extraction.Journal of Industrial and Engineering Chemistry.24,92-97.
[17]Xu G.-X.,Yuan C.-Y,1987.Solvent Extraction of Rare Earths.Beijing:Science Press.
[18]Niu Q.-L.,Wang Y.-D.,2014.Solvent extraction of erbium(Ⅲ)with P507 in nitric acid solution and its separation from calcium(Ⅱ)and ferrum(Ⅲ).Chinese Journal of Chemical Engineering.65(1),258-263.
[19]Liu J.,Wang Y.-D.,2014.Extraction of praseodymium(Ⅲ)and neodymium(Ⅲ)in saponified P507-HCI-kerosen system.Chinese Journal of Chemical Engineering.65(1),264-270.
[20]Danilo F.,Loris P.,2009.Separation of middle rare earths by solvent extraction using 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant.Journal of Rare Earths.27(5),830-833.
[21]Fu N.X.,Tanaka M.,2007.Modeling analysis of extraction equilibrium of yttrium(Ⅲ)and europium(Ⅲ)from nitric acid with P507 under non-ideal conditions.Chinese Rare Earths.28(5),56-63.
[22]Huang X.W.,Li H.-N.,Zhang Y.-Q.,Long Z.-Q.,Wang CM.,Xue X.-X.,2008.Synergistic extraction of Nd3+and Sm3+from sulfuric acid medium with D2EHPA-HEHEHP in kerosene.The Chinese Journal of Nonferrous Metals.18(2),366-371.
[23]Hou L.-S.,2005.Applications of P507 and P204 in rare earth separation.Science&Technology of Baotou Steel(Group)Corporation.31,26-29.
[24]Zhang Y.-L.,Zhao J.,2003.Separating La3+and Ca2+from YCI3 solution with P507-kerosene-HCI extraction system.Hydrometallurgy of China.22(3),138-141.
[25]Xia J.,Ren Z.-Q.,Wang Y.-D.,2012.Solvent extraction separation of cerium and praseodymium from hydrochloric solution with P507.China Sciencepaper.7(12),907-912.
[26]Xiong Y,Wu D.-B.,Li D.-Q.,Meng S.-L,2005.Kinetics of Y(Ⅲ)stripping for the system Y/HCI/Cyanex 272-P507/Heptane with constant interfacial area cell with laminar flow.Solvent Extraction and Ion Exchange.23(6),803-816.
[27]Yang Y.-M.,Deng S.-H.,Lan Q.-F.,Nie H.-P.,Ye X.-Y.,2013.The rare earth extraction and separation performance in P507-N235 system.Nonferrous Metals Science and Engineering.4(3),83-86.
[28]Yuan Z.-W.,Meng J.,Zhao S.-W.,2010.Study on the Recovery of Rare Earth from Waste FCC Catalyst.Petroleum Processing and Petrochemicals.41(10),33-39.
[29]He H.W.,Meng J.,2011.Recycling rare earth from spent FCC catalyst using P507(HEH/EHP)as extractant.Journal of Central South University(Science and Technology).42(9),2651-2657.
[30]Li D.-Q.,1982.Conference Proceeding of Rare Earth Chemistry.Beijing:Science Press.20-29.
[31]Wu S.,Liao C.-S.,Jia J.-T,2006.Effect of cycling loaded Rare Earths on stripping process in P507 extraction system.Journal of the Chinese Rare Earths Society.24(2),134-138.
[2]He M.-Y.,2012.The hydrothermal chemistry of the manufacturing process of different Y type zeolites.Catalyst Communications.1,4-6.
[3]Scherzer J.,1993.Chapter 5 Correlation Between Catalyst Formulation and Catalytic Properties.Studies in Surface Science and Catalysis.76,145-182.
[4]Woltermann G.M.,Magee J.S.,Griffith S.D.,1993.Chapter4 Commercial Preparation and Characterization of FCC Catalysts.Studies in Surface Science and Catalysis.76,105-144.
[5]Tynjala P.,Pakkanen T.T.,1996.Acidic properties of zsm-5 zeolite modified with Ba2+,AI3+and La3+ion-exchange.Journal of Molecular Catalysis A:Chemical.110,153-161.
[6]Thiam L.C.,Subhash B.,2009.Effect of catalyst additives on the production of biofuels from palm oil cracking in a transport riser reactor.Bioresource Technology.100,2540-2545.
[7]Yu S.-Q.,Tian H.-P,Dai Z.-Y,Long J.,2010.Mechanism of the Influence of Lanthanum and Cerium on the Stability of Y Zeolite.Chinese Journal of Catalysis.31(10),1263-1270.
[8]Gabriela de la P.,Ulises S.,1996.Conversion of methylcyclopentane on rare earth exchanged Y zeolite FCC catalysts.Applied Catalysis A:General.144,147-158.
[9]Trigueiro F.E.,Monteiro D.F.J.,Zotin F.M.Z.,2002.SousaAguiar E F.Thermal stability of Y zeolites containing different rare earth cations.Journal of Alloys and Compounds.344,337-341.
[10]Marcello S.R.,Rob van V.,Laurent H.,2007.Chapter 24Zeolites in hydrocarbon processing.Studies in Surface Science and Catalysis.168,855-913.
[11]Du X.-H.,Gao X.-H.,Zhang H.-T.,Li X.-L,Liu P.-S.,2013.Effect of cation location on the hydrothermal stability of rare earth-exchanged Y zeolites.Catalysis Communications.35,17-22.
[12]Wallenstein D.,Schafer K.,Harding R.H.,2015.Impact of rare earth concentration and matrix modification in FCC catalysts on their catalytic performance in a wide array of operational parameters.Applied Catalysis A:General.502:27-41.
[13]Ferella F.,Innocenzi V.,Maggiore R,2016.Oil refining spent catalysts:A review of possible recycling technologies.Resources,Conservation and Recycling.108,10-20.
[14]Li X.-Q.,Hu H.-L.,Sun S.-F.,Li Y.-S.,Mao X.-Q.,Li X.,2015.Identification of Rare Earth-containing Wastes and Detection of Rare Earth Content in The Wastes.Chinese Rare Earths.36(4),138-143.
[15]Zhao Z.X.,Qiu Z.F.,Yang J.,Cao L.M.,Zhang W.,2015.Research Progresses in Recovery of Rare Earth from Spent FCC Catalyst and Automobile Exhaust Purifying Catalyst.Environmental Protection of Chemical Industry.35(6),603-608.
[16]Innocenzi V.,Ferella F.,Michelis I.D.,Veglio F.,2015.Treatment of fluid catalytic cracking spent catalysts to recover lanthanum and cerium:Comparison between selective precipitation and solvent extraction.Journal of Industrial and Engineering Chemistry.24,92-97.
[17]Xu G.-X.,Yuan C.-Y,1987.Solvent Extraction of Rare Earths.Beijing:Science Press.
[18]Niu Q.-L.,Wang Y.-D.,2014.Solvent extraction of erbium(Ⅲ)with P507 in nitric acid solution and its separation from calcium(Ⅱ)and ferrum(Ⅲ).Chinese Journal of Chemical Engineering.65(1),258-263.
[19]Liu J.,Wang Y.-D.,2014.Extraction of praseodymium(Ⅲ)and neodymium(Ⅲ)in saponified P507-HCI-kerosen system.Chinese Journal of Chemical Engineering.65(1),264-270.
[20]Danilo F.,Loris P.,2009.Separation of middle rare earths by solvent extraction using 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant.Journal of Rare Earths.27(5),830-833.
[21]Fu N.X.,Tanaka M.,2007.Modeling analysis of extraction equilibrium of yttrium(Ⅲ)and europium(Ⅲ)from nitric acid with P507 under non-ideal conditions.Chinese Rare Earths.28(5),56-63.
[22]Huang X.W.,Li H.-N.,Zhang Y.-Q.,Long Z.-Q.,Wang CM.,Xue X.-X.,2008.Synergistic extraction of Nd3+and Sm3+from sulfuric acid medium with D2EHPA-HEHEHP in kerosene.The Chinese Journal of Nonferrous Metals.18(2),366-371.
[23]Hou L.-S.,2005.Applications of P507 and P204 in rare earth separation.Science&Technology of Baotou Steel(Group)Corporation.31,26-29.
[24]Zhang Y.-L.,Zhao J.,2003.Separating La3+and Ca2+from YCI3 solution with P507-kerosene-HCI extraction system.Hydrometallurgy of China.22(3),138-141.
[25]Xia J.,Ren Z.-Q.,Wang Y.-D.,2012.Solvent extraction separation of cerium and praseodymium from hydrochloric solution with P507.China Sciencepaper.7(12),907-912.
[26]Xiong Y,Wu D.-B.,Li D.-Q.,Meng S.-L,2005.Kinetics of Y(Ⅲ)stripping for the system Y/HCI/Cyanex 272-P507/Heptane with constant interfacial area cell with laminar flow.Solvent Extraction and Ion Exchange.23(6),803-816.
[27]Yang Y.-M.,Deng S.-H.,Lan Q.-F.,Nie H.-P.,Ye X.-Y.,2013.The rare earth extraction and separation performance in P507-N235 system.Nonferrous Metals Science and Engineering.4(3),83-86.
[28]Yuan Z.-W.,Meng J.,Zhao S.-W.,2010.Study on the Recovery of Rare Earth from Waste FCC Catalyst.Petroleum Processing and Petrochemicals.41(10),33-39.
[29]He H.W.,Meng J.,2011.Recycling rare earth from spent FCC catalyst using P507(HEH/EHP)as extractant.Journal of Central South University(Science and Technology).42(9),2651-2657.
[30]Li D.-Q.,1982.Conference Proceeding of Rare Earth Chemistry.Beijing:Science Press.20-29.
[31]Wu S.,Liao C.-S.,Jia J.-T,2006.Effect of cycling loaded Rare Earths on stripping process in P507 extraction system.Journal of the Chinese Rare Earths Society.24(2),134-138.