PURIFICATION

作品数:966被引量:1997H指数:16
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  • 期刊=Journal of Rare Earthsx
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Research progress on preparation of cerium-based oxide catalysts with specific morphology and their application for purification of diesel engine exhaust
《Journal of Rare Earths》2024年第7期1187-1216,I0001,共31页Chunlei Zhang Siyu Gao Di Yu Shengran Zhou Lanyi Wang Xuehua Yu Zhen Zhao 
Project supported by National Key R&D Program of China(2022YFB3506200,2022YFB3504100);National Natural Science Foundation of China(22372107,22072095,U1908204);Excellent Youth Science Foundation of Liaoning Province(2022-YQ-20);Shenyang Science and Technology Planning Project(22-322-3-28);University Joint Education Project for China-Central and Eastern European Countries(2021097)。
The elimination of pollutants from diesel exhaust has received widespread research attention as they cause serious air pollution and pose a threat to human health.Catalytic post-treatment technology is one of the most...
关键词:Ce-based oxide catalysts Dies elexhaust pollutants Specific morphology Catalytic purification Rare earths 
Integrated purification of gadolinium and preparation of Gd2O_(3) nanoparticles by DC arc plasma被引量:2
《Journal of Rare Earths》2021年第12期1574-1578,I0005,共6页Zhenggang Tang Minjie Hou Xin He Kai Ye Da Zhang Zhipeng Xie Yongnian Dai Feng Liang 
Project supported by the National Natural Science Foundation of China(11765010);National Key Research and Development Program(2019YFC1907900);Yunnan Academician Free Exploration Fund(2018HA006);the Applied Basic Research Programs of Yunnan Provincial Science and Technology Department(202001AW070004);the Key Laboratory of Resource Chemistry,Ministry of Education(KLRC_ME2001)。
The rare-earth metal Gd plays an important role in the energy,information,and national defence fields due to its special optical,electrical,magnetic,and catalytic properties.In this study,Gd was purified by direct cur...
关键词:GD DC arc plasma PURIFICATION PREPARATION NANOMATERIAL Integration 
Research advances of rare earth catalysts for catalytic purification of vehicle exhausts-Commemorating the 100th anniversary of the birth of Academician Guangxian Xu被引量:11
《Journal of Rare Earths》2021年第10期1151-1180,I0001,共31页Lanyi Wang Xuehua Yu Yuechang Wei Jian Liu Zhen Zhao 
supported by the National Natural Science Foundation of China(U1908204,22072095,21761162016);Key Research and Development Program of MOST(2017YFE0131200);General Projects of Liaoning Province Natural Fund(2019-MS-284);National Engineering Laboratory for Mobile Source Emission Control Technology(NELMS2018A04);University Level Innovation Team of Shenyang Normal University and Major Incubation Program of Shenyang Normal University(ZD201901)。
Nowadays,air pollution has become a prominent environmental problem and has attracted much attention.With the increase of vehicle retention quantity,the exhaust emissions have become the main sources of air pollution....
关键词:Rare earth catalysts Catalytic purification Vehicle exhausts Research advances 
Mechanism of removing ferrum impurity in lanthanum refined byelectron beam melting被引量:5
《Journal of Rare Earths》2021年第7期875-880,I0005,共7页Siming Pang Wenli Lu Zhenfei Yang Xiaowei Zhang Dehong Chen Daogao Wu Lin Zhou Ruiying Miao 
Project supported by the National Key Research and Development Program of China(2017YFB0405901);the National Natural Science Foundation of China(51504036,51604033)。
Removal feasibility of Fe impurity form La metal by electron beam melting(EBM) was analyzed,the removal mechanism was discussed,and the verification experiments were carried out in this study.The research results indi...
关键词:Lanthanum metal PURIFICATION Fe impurity DYNAMICS Electron beam melting Rare earths 
Purification of scandium from concentrate generated from titanium pigments production waste被引量:6
《Journal of Rare Earths》2021年第2期194-200,共7页Jie Zhou Shunyan Ning Jiejie Meng Shichang Zhang Wei Zhang Siyi Wang Yedan Chen Xinpeng Wang Yuezhou Wei 
the National Natural Science Foundation of China(11705032,11675102);Natural Science Foundation of Guangxi Province(2017GXNSFBA198175);Science and Technology Major Project of Guangxi Province(AA17204100)。
Nowadays 80%of scandium in China is obtained from titanium pigments production waste through a complex purification process.The study mainly focused on the purification of Sc from its concentrate generated from titani...
关键词:SCANDIUM D_(2)EHPA TBP Extraction PURIFICATION Titanium pigments production waste 
Catalytic performance of Zr-doped CuO-CeO2 oxides for CO selective oxidation in H2-rich stream被引量:8
《Journal of Rare Earths》2019年第7期720-725,共6页Limin Shi Chuanlei Gao Fenghai Guo Yujing Wang Tiebang Zhang 
Project supported by the National Natural Science Foundation of China(21406174 and 51508435)
Zr-doped CuO-CeO2 catalysts for CO selective oxidation were designed and prepared by the hydrothermal method and coprecipitation. The experimental samples were characterized by means of N2 adsorption-desorption isothe...
关键词:CATALYTIC performance CuO-CeO2 OXIDES ZR doping CO selective oxidation Hydrogen PURIFICATION RARE earths 
Preparation of high-purity neodymium chloride by solvent extraction in the mixer-settlers: A pilot-scale investigation被引量:4
《Journal of Rare Earths》2017年第11期1133-1140,共8页Fujian Li Qiaoyan He Yanliang Wang Hong Zhou Shuibo Zhang Xiaoqi Sun 
Project supported by'Hundreds Talents Program' from Chinese Academy of Sciences,Science and Technology Major Project of Fujian Province(2015HZ0001-3);National Natural Science Foundation of China(21571179);Science and Technology Major Project of Ganzhou(2017-8)
A novel purification process based on mixer-settlers for high-purity NdClwas developed. Acidic solution and pure NdClsolution were compared to scrub the less-extractable rare earths(REs)(La, Ce, and Pr)from loaded org...
关键词:Solvent extraction PURIFICATION NEODYMIUM HIGH-PURITY Mixer-settlers 
Impurity distribution in metallic dysprosium during distillation purification
《Journal of Rare Earths》2016年第9期924-930,共7页张小伟 苗睿瑛 李传军 吴道高 闫缓 王志强 陈德宏 颜世宏 李宗安 
Project supported by National Natural Science Foundation of China(51504036);National Basic Research Program of China(2012CBA01207);National High Technology Research and Development Program of China(2011AA03A409)
The distribution rules of impurities contents in distilled metallic dysprosium were researched, and a theoretical analysis was carried out. The research results indicated that, the content of impurity in distilled met...
关键词:vacuum distillation purification distilled dysprosium impurity distribution modified separation coefficient rare earths 
Numerical simulation during vacuum sublimation purification of metal Tm (I): model foundation and validation被引量:3
《Journal of Rare Earths》2013年第2期180-185,共6页张小伟 苗睿瑛 陈德宏 王志强 李宗安 颜世宏 金小礼 
Project supported by National Hi-Tech R&D Program of China(863Program,2011AA03A409);Major State Basic Research Development Program of China(973Program,2012BA01207)
The thermo physical parameters of Tm vapor and the range of sublimation temperature were determined by vapor pressure of metal Tm, and a 2-D axis-symmetric heat transfer model was developed to investigate the temperat...
关键词:vacuum sublimation Tm vapor temperature field numerical simulation 
Study on purification and application of novel precipitant for ceria-based polishing powder被引量:9
《Journal of Rare Earths》2013年第2期174-179,共6页刘洪吉 冯宗玉 黄小卫 龙志奇 王猛 肖燕飞 侯永可 
Project supported by The National High Technology Research and Development Program of China(863Program:2010AA03A405);Twelfth Five-Year National Science and Technology Pillar Program(2012BAE01B02)
Novel precipitant prepared through carbonation with MgCl2 wastewater generated from rare earth extraction separation process and low-price dolomite as raw materials was studied in this paper. The purification methods ...
关键词:rare earths wastewater PRECIPITANT PURIFICATION ceria-based polishing powder 
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