O216萃取分离钒与铬的工艺研究
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摘要
采用O216—3~#惰性溶剂为萃取剂溶液,以钠化焙烧钒铬渣浸出液为原料,研究了浸出液萃前pH值、萃取剂溶液浓度、萃取温度、萃取反应时间、相比等因素对钒铬的萃取分离的效果,测定最佳工艺下萃取剂溶液的饱和容量。得到的最佳工艺条件为:浸出液pH为1.8、体积浓度为40%、温度为30℃、萃取时间为5 min、相比为1∶1,钒的单级萃取率达98.79%、铬的单级萃取率达36.42%,分离系数为142.90;O216萃取剂溶液对于钒铬的饱和容量分别为:V_2O_5:41.46 g/L,Cr_2O_3:3.62 g/L。O216—3~#惰性溶剂为萃取剂溶液用于钒铬分离,具有良好的分离效果。
Using the O216 synthesized in laboratory and 3~# inert solvent as the extraction solution and the leaching solution from sodium roasting of V-Cr slag as raw material,the effects of pH of the leaching solution,concentration of the extraction solution,extraction temperature,extraction time and phase ratio on the separation efficiency of V and Cr were studied.The saturation capacity of the extraction solution under the optimum conditions was determined.The optimum conditions are shown as follows:the leaching solution pH of 1.8,the volume concentration of 40% for the extraction solution,the extraction temperature of 30 ℃,the extraction time of 5 min,and the phase ratio of 1∶1.The single stage extraction rate of vanadium and chromium are 98.79% and 36.42% respectively,with the separation factor at 142.90.The saturation capacity of O216 extraction solution for vanadium and chromium is respectively 41.46 g/L of V_2O_5 and 3.62 g/L of Cr_2O_3.It shows an effective separation of vanadium and chromium in the extraction solution of O216-3~# inert solvent.
Using the O216 synthesized in laboratory and 3~# inert solvent as the extraction solution and the leaching solution from sodium roasting of V-Cr slag as raw material,the effects of pH of the leaching solution,concentration of the extraction solution,extraction temperature,extraction time and phase ratio on the separation efficiency of V and Cr were studied.The saturation capacity of the extraction solution under the optimum conditions was determined.The optimum conditions are shown as follows:the leaching solution pH of 1.8,the volume concentration of 40% for the extraction solution,the extraction temperature of 30 ℃,the extraction time of 5 min,and the phase ratio of 1∶1.The single stage extraction rate of vanadium and chromium are 98.79% and 36.42% respectively,with the separation factor at 142.90.The saturation capacity of O216 extraction solution for vanadium and chromium is respectively 41.46 g/L of V_2O_5 and 3.62 g/L of Cr_2O_3.It shows an effective separation of vanadium and chromium in the extraction solution of O216-3~# inert solvent.
引文
[1]Kluge R L,Alexander D J.Effect of vanadium and titanium on mechanical properties of chromium-tungsten steels 1[J].Journal of Nuclear Materials,1994,212(5):569-573.
[2]Li Yanfen,Liu Yefeng,Luo Hao,et al.Advances in research on vanadium extraction technology[J].Chemical Industry and Engineering Progress,2016,35(s1):223-229.(李延芬,刘叶凤,罗浩,等.提钒技术研究进展[J].化工进展,2016,35(s1):223-229.)
[3]Liu Shiyou.Application and prospect of vanadium[J].Rare Metals and Cemented Carbides,2000(2):58-61.(刘世友.钒的应用与展望[J].稀有金属与硬质合金,2000(2):58-61.)
[4]Wang Quanjie,Zhu Xianyi,Hou Lijie,et al.Evaluation of chromium[J].Western Leather,2009,31(1):16-22.(王全杰,朱先义,侯立杰,等.对铬的评价[J].西部皮革,2009,31(1):16-22.)
[5]Tang Haiyan,Xiao Qinggui,Xu Hongbin,et al.Research progress of new chromium chemicals-organic chromium[J].Chemical Industry and Engineering Progress,2013,32(9):2205-2215.(唐海燕,肖清贵,徐红彬,等.新型铬化学品---有机铬研究进展[J].化工进展,2013,32(9):2205-2215.)
[6]Costa M,Klein C B.Toxicity and car cinogenicity of chromium compounds in humans[J].Crit.Rev.Toxicol.,2006,36(2):155-163.
[7]Domingo J L.Vanadium:A review of the reproductive and developmental toxicity[J].Reprod.Toxicol.,1996,10(3):175-182.
[8]Li C,Li H,Tu C,et al.Selective extraction of vanadium from the APV-recipitated waste water[M]//REWAS 2013.Springer International Publishing,2013:302-308.
[9]Yang Yaling,Yan Wenbin,Gao Feng.Separation of V2O5and Cr(VI)from vanadium slag leaching solution by ion exchange resin.Chin.[J].Process Eng.,2017,17(1):84-91.(阳亚玲,颜文斌,高峰.离子交换树脂分离钒渣浸出液中钒与铬[J].过程工程学报,2017,17(1):84-91.)
[10]Ning Pengge,Sun Gang,Cao Hongbin,et al.A method for the separation and recovery of vanadium and chromium from vanadium chromium solution by precipitation,China:CN103849765A[P].2014-06-11.(宁朋歌,孙刚,曹宏斌,等.一种沉淀分离与回收钒铬溶液中钒和铬的方法,中国:CN103849765A[P].2014-06-11.)
[11]Sun Pan,Huang Xi,Liu Huizhou.Extraction and separation of vanadium and chromium from strong alkaline solution using acidified primary amine N-N-dichlorotrimethylate system[J].The Chinese Journal of Nonferrous Metals,2016,26(7):1559-1567.
[12]Wei Junyi,Li Yong.Application of[Omim][BF4]as extractant to separation of vanadium/chromium in vanadium chromium residue acid leaching solution[J].Plating&Finishing,2017,39(8):37-42.(魏君怡,李勇.应用[Omim][BF4]为萃取剂分离钒铬渣酸浸液中钒/铬的研究[J].电镀与精饰,2017,39(8):37-42.)
[13]He D,Feng Q,Zhang G,et al.An environmentally-friendly technology of vanadium extraction from stone coal[J].Minerals Engineering,2007,20(12):1184-1186.
[14]Wionczyk B,Apostoluk W,Charewicz W A,et al.Recovery of chromium(Ⅲ)from wastes of uncolored chromium leathers.Part II.Solvent extraction of chromium(Ⅲ)from alkaline protein hydrolyzate[J].Separation&Purification Technology,2011,81(2):237-242.
[15]Hu G,Chen D,Wang L,et al.Extraction of vanadium from chloride solution with high concentration of iron by solvent extraction using D2EHPA[J].Separation&Purification Technology,2014,125(1):59-65.
[16]Xing Yunqing.Study on removal and recovery of Cr(VI)in wastewater by EDI[D].Hangzhou:Zhejiang University,2007.(邢云青.EDI法去除与回收废水中Cr(Ⅵ)的研究[D].杭州:浙江大学,2007.)
[17]Feng Man,Wang Shaona,Du Hao,et al.Crystallization separation of sodium vanadate and sodium chromate in the subsystem of vanadium slag with sub-molten salt[C]//Vanadium Industry Advanced Technology Conference.2013.(冯曼,王少娜,杜浩,等.亚熔盐法钒渣多元体系中钒酸钠和铬酸钠结晶分离[C]//钒产业先进技术交流会.2013.)
[18]Song Ziwei.Basic research on the separation of multicomponent system of vanadium slag with sub-molten salt method[D].Tianjin:Tianjin University,2010.(宋紫微.亚熔盐法钒渣多元体系分离基础研究[D].天津:天津大学,2010.)
[2]Li Yanfen,Liu Yefeng,Luo Hao,et al.Advances in research on vanadium extraction technology[J].Chemical Industry and Engineering Progress,2016,35(s1):223-229.(李延芬,刘叶凤,罗浩,等.提钒技术研究进展[J].化工进展,2016,35(s1):223-229.)
[3]Liu Shiyou.Application and prospect of vanadium[J].Rare Metals and Cemented Carbides,2000(2):58-61.(刘世友.钒的应用与展望[J].稀有金属与硬质合金,2000(2):58-61.)
[4]Wang Quanjie,Zhu Xianyi,Hou Lijie,et al.Evaluation of chromium[J].Western Leather,2009,31(1):16-22.(王全杰,朱先义,侯立杰,等.对铬的评价[J].西部皮革,2009,31(1):16-22.)
[5]Tang Haiyan,Xiao Qinggui,Xu Hongbin,et al.Research progress of new chromium chemicals-organic chromium[J].Chemical Industry and Engineering Progress,2013,32(9):2205-2215.(唐海燕,肖清贵,徐红彬,等.新型铬化学品---有机铬研究进展[J].化工进展,2013,32(9):2205-2215.)
[6]Costa M,Klein C B.Toxicity and car cinogenicity of chromium compounds in humans[J].Crit.Rev.Toxicol.,2006,36(2):155-163.
[7]Domingo J L.Vanadium:A review of the reproductive and developmental toxicity[J].Reprod.Toxicol.,1996,10(3):175-182.
[8]Li C,Li H,Tu C,et al.Selective extraction of vanadium from the APV-recipitated waste water[M]//REWAS 2013.Springer International Publishing,2013:302-308.
[9]Yang Yaling,Yan Wenbin,Gao Feng.Separation of V2O5and Cr(VI)from vanadium slag leaching solution by ion exchange resin.Chin.[J].Process Eng.,2017,17(1):84-91.(阳亚玲,颜文斌,高峰.离子交换树脂分离钒渣浸出液中钒与铬[J].过程工程学报,2017,17(1):84-91.)
[10]Ning Pengge,Sun Gang,Cao Hongbin,et al.A method for the separation and recovery of vanadium and chromium from vanadium chromium solution by precipitation,China:CN103849765A[P].2014-06-11.(宁朋歌,孙刚,曹宏斌,等.一种沉淀分离与回收钒铬溶液中钒和铬的方法,中国:CN103849765A[P].2014-06-11.)
[11]Sun Pan,Huang Xi,Liu Huizhou.Extraction and separation of vanadium and chromium from strong alkaline solution using acidified primary amine N-N-dichlorotrimethylate system[J].The Chinese Journal of Nonferrous Metals,2016,26(7):1559-1567.
[12]Wei Junyi,Li Yong.Application of[Omim][BF4]as extractant to separation of vanadium/chromium in vanadium chromium residue acid leaching solution[J].Plating&Finishing,2017,39(8):37-42.(魏君怡,李勇.应用[Omim][BF4]为萃取剂分离钒铬渣酸浸液中钒/铬的研究[J].电镀与精饰,2017,39(8):37-42.)
[13]He D,Feng Q,Zhang G,et al.An environmentally-friendly technology of vanadium extraction from stone coal[J].Minerals Engineering,2007,20(12):1184-1186.
[14]Wionczyk B,Apostoluk W,Charewicz W A,et al.Recovery of chromium(Ⅲ)from wastes of uncolored chromium leathers.Part II.Solvent extraction of chromium(Ⅲ)from alkaline protein hydrolyzate[J].Separation&Purification Technology,2011,81(2):237-242.
[15]Hu G,Chen D,Wang L,et al.Extraction of vanadium from chloride solution with high concentration of iron by solvent extraction using D2EHPA[J].Separation&Purification Technology,2014,125(1):59-65.
[16]Xing Yunqing.Study on removal and recovery of Cr(VI)in wastewater by EDI[D].Hangzhou:Zhejiang University,2007.(邢云青.EDI法去除与回收废水中Cr(Ⅵ)的研究[D].杭州:浙江大学,2007.)
[17]Feng Man,Wang Shaona,Du Hao,et al.Crystallization separation of sodium vanadate and sodium chromate in the subsystem of vanadium slag with sub-molten salt[C]//Vanadium Industry Advanced Technology Conference.2013.(冯曼,王少娜,杜浩,等.亚熔盐法钒渣多元体系中钒酸钠和铬酸钠结晶分离[C]//钒产业先进技术交流会.2013.)
[18]Song Ziwei.Basic research on the separation of multicomponent system of vanadium slag with sub-molten salt method[D].Tianjin:Tianjin University,2010.(宋紫微.亚熔盐法钒渣多元体系分离基础研究[D].天津:天津大学,2010.)