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[1]徐源来1,2,郭 格1,等.新型大孔硅基复合树脂对铂族金属的吸附特性[J].武汉工程大学学报,2015,37(01):1-5.[doi:10. 3969/j. issn. 1674-2869. 2015. 01. 001]
 ,,et al.Adsorption behavior of platinum group metals using novel silica-based macroporous adsorbent[J].Journal of Wuhan Institute of Technology,2015,37(01):1-5.[doi:10. 3969/j. issn. 1674-2869. 2015. 01. 001]
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新型大孔硅基复合树脂对铂族金属的吸附特性(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年01期
页码:
1-5
栏目:
化学与化学工程
出版日期:
2015-01-31

文章信息/Info

Title:
Adsorption behavior of platinum group metals using novel silica-based macroporous adsorbent
文章编号:
1674-2869(2015)01-0001-05
作者:
徐源来1郭 格1余军霞1周 芳1徐志高1张越非1肖春桥1池汝安12*
1.武汉工程大学化工与制药学院,湖北 武汉 430074;2.绿色化工过程教育部重点实验室(武汉工程大学),湖北 武汉 430074
Author(s):
XU Yuan-lai 1GUO Ge 1YU Jun-xia1ZHOU Fang1XU Zhi-gao1  ZHANG Yue-fei1XIAO Chun-qiao1CHI Ru-an1*
1. School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan 430074, China;  2.Key Laboratory of Green Chemical Process (Wuhan Institute of Technology) ,Ministry of Education, Wuhan 430074, China
关键词:
新型大孔硅基复合树脂铂族金属高放废液吸附行为柱色谱法
Keywords:
novel silica-based macroporous adsorbent platinum group metals high level liquid waste adsorption behavior extraction chromatography.
分类号:
TQ028.3;TL241.1
DOI:
10. 3969/j. issn. 1674-2869. 2015. 01. 001
文献标志码:
A
摘要:
为了从乏燃料后处理产生的高放废液中选择性分离铂族金属,采用萃取剂Crea (N’,N’?蛳di?蛳n?蛳hexyl?蛳 thiodiglycolamide) 和trioctylamine (TODGA)组成协同萃取体系,将其固定到大孔硅基-高分子载体(SiO2)中,合成一种新型大孔硅基复合吸附树脂(Crea+TODGA)/SiO2?蛳P用于柱色谱法分离富集其中的钯(Pd)、钌(Ru)和铑(Rh). 通过静态吸附试验,重点研究硝酸浓度对铂族金属在树脂上吸附行为的影响,由实验结果可知:硝酸在0.1~5.0 mol/L浓度下,三种树脂对Pd(II)均有非常强的吸附亲和力,能吸附水相中全部Pd(II)离子;对Ru(III)有吸附能力,但随着硝酸浓度的增加而降低;在3.0 mol/L硝酸浓度中对Rh(III)的吸附能力较弱;在低硝酸浓度下对铼Re(VII)有着强吸附,但吸附能力随着酸度的增加而急剧降低. 与另两种同类树脂相比较,(Crea+TODGA)/SiO2?蛳P对三种铂族金属的吸附亲和力有着显著的差异,证实使用该树脂柱色谱法单步分离三种元素的可能性.
Abstract:
To selectively separate and recovery platinum group metals (PGMs) from high level liquid waste originating PUREX reprocessing, a novel silica?鄄based macroporous adsorbent (Crea+TODGA)/SiO2?鄄P was synthesized by impregnating Crea (N’,N’?鄄di?蛳n?鄄hexyl?鄄 thiodiglycolamide) and trioctylamine( TODGA) two ex?鄄tractants into the macroporous SiO2?蛳P support. Adsorption behavior of PGMs onto (Crea+TODGA)/SiO2?鄄P adsorbent was investigated by batch method. In batch adsorption experiments, the effect of nitric acid concentration on the adsorption of PGMs towards adsorbent was examined. It was found that (Crea+TODGA)/SiO2?蛳P hads strong adsorption affinty to Pd(II), weak adsorption affinty to Ru(III) and almost no adsorption to Rh(III). In 0.1 mol/L nitric acid, the adsorption of Re(VII) is strong but it decreases dramatically with the increase of nitric acid concentration. In addition, after compared with (Crea+TOA)/SiO2?鄄P and (Crea+Dodec)/SiO2?鄄P, the different adsorption affinties to three PGMs ions can speculate the possibility of separation by one (Crea+TODGA)/SiO2?鄄P chromatography column.

参考文献/References:

[1] 刘学刚,徐景明,梁俊福,等.乏燃料后处理和高放废液分离一体化流程研究进展[J]. 科技导报,2006,24(6):77-81.  LIU Xue-gang, XU Jing-ming, LIANG Jun-fu,et al. Progress in research of spent fuel reprocessing and high-level liquid waste partitioning integrated process[J].Science &Technology Review,2006,24(6):77-81.  [2] 王淑玲.铂族金属资源的现状及对策研究[J].中国地质,2001,28(8):23-27.  WANG Su-ling.Platinum Group Metals Resources present situation and countermeasure research[J].Chinese Geology,28(8):23-27.(in Chenese)  [3] ANDO Y,TAKANO H. Estimation of LWR spent fuel composition[R]. Japan:JAERI-Research,1999.  [4] DASKSHINAMOORTHY A,DHAMI P S,NAIK P W,et al.Separation of palladium from high level liquid waste of PUREX origin by solvent extraction and precipitation methods using oximes[J]. Desalination,2008,232:26-36.  [5] GAITA R,AL-BAZI S J.An ion-exchange method for selective separation of palladium,platinum and rhodium from solutions obtained by leaching automotive catalytic converters [J].Talanta,1995,42:249-255.  [6] LEE S H,KIM KR,Jung C H,et al.Ion exchange characteristics of palladium from nitric acid solution by anion exchangers [J].Korean Journal of Chemical Engineering,1999,16:571-575.  [7] OZAWA M,SUZUKI S,TAKESHITA K.Advanced hydrometallurgical separation of actinides and rare metals in nuclear fuel cycle[J]. Solvent Extraction Research and Development,2010,17:19-34.  [8] RUHELA R,SHARMA J N,TOMAR B S,et al. N, N, N, N-tetra(2-ethylhexyl) thiodiglycolamide T(2EH)TDGA: a novel ligand for the extraction of palladium from high level liquid waste(HLLW)[J].Radiochime Acta,2010,98: 209-214.  [9] DASKSHINAMOORTHY A,DHAMI PS,MUNSHI S K,et al.Separation of palladium from high level liquid waste, generated from reprocessing of PHWR spent fuel [J].BARC,2008,292:7-16.  [10] XU YUAN-LAI, KIM Seong-Yun,Tatsuya ITO, et al.Adsorption properties and behavior of the platinum group metals onto a silica-based (Crea+TOA)/SiO2?蛳P adsorbent from simulated high level liquid waste of PUREX reprocessing[J]. Journal of Radioanalytical and Nuclear Chemistry,2013,297(1): 41-48.  [11] XU YUAN-LAI, KIM Seong-yun,Tatsuya I T O, et al.Adsorption behavior of platinum group metals onto a silica-based (Crea+Dodec)/SiO2?蛳P extraction resin from simulated high level liquid waste[J]. Separation Science and Technology, 2014, DOI: 10.1080/01496395.2014.956222.

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备注/Memo

备注/Memo:
收稿日期:2015-01-04基金项目:国家自然科学基金项目(51344010,51404172);湖北省自然科学基金项目(2013CFB317)作者简介:徐源来(1983-),女,湖北武汉人,特聘教授,博士.研究方向:分离科学与工程.*通信联系人
更新日期/Last Update: 2015-03-20