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EXTRACTION MECHANISM OF CERIUM(IV) AND FLUORINE(I)IN THE SEPARATION PROCESS OF BASTNASITE LEACHSOLUTION BY CYANEX 923 D.Q.Li1,W.P.Liao1,G.H.Yu1 (1.Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, The ChineseAcademy of Sciences, Changchun 130022, China) Abstract:The extraction equilibrium of cerium(IV) and fiuoriue(l) from II2SO4 solution tyCyanex 923......
New Environment-Friendly Approach for Bastnasite Metallurgic Treatment (I): Extraction of Tetravalent Cerium from Sulphuric Acid Medium with Di(2-ethylhexyl) Phosphoric Acid Cui Dali1,Zhang Guocheng1,Zhu Zhaowu1,ZHAO Na1,Li Dedong1,Long Zhiqi1 (1.Advanced Materials Co. Ltd. of Beijing General Research Institute of Nonferrous Metals, Beijing 100088, China) Abstract:The extraction of cerium(IV......
:In this paper, the recent advance of processes for treating Baotou mixed-type rare earths concentrate, bastnasite, and ionic adsorption deposit in China was reviewed. The R & D circumstance and new progresses......
Flotation Separation on Rare Earth Minerals and Gangues程建忠,侯运炳,车丽萍摘 要:The flotation process of native rare earth minerals such as bastnasite, monazite, mixed minerals of bastnasite and monazite, using the new effective collector Dh was studied, respectively, and the flotation properties were described. The good qualities of the new collector Dh were......
and recover cerium and thorium from bastnasite leaching was proposed, in which the purities of cerium and thorium products reached 99.9% and 99% with yield of 92% and 98%, respectively.关键词:......
and recover cerium and thorium from bastnasite leaching was proposed, in which the purities of cerium and thorium products reached 99.9% and 99% with yield of 92% and 98%, respectively.关键词:......
ratio of mixed rare earth concentrate is 76.5 %. The analyses of X-ray diffraction shows that bastnasite disappears, and the main peaks of filter residue is monazite and cheralite after leaching......
Preparation of ceria with large particle size and high appearance density王嵩龄,刘钧云,贾江涛,廖春生,严纯华摘 要:Cerium is one of the most abundant rare earth elements in both bastnasite and monazite. Ceria has been widely used in optical, catalytic, electrolyte, and sensor materials, with unique performances. With the development of functional materials, great interest......
in this study was classified as refractory mineral of low-grade which was mainly composed of fergusonite, polycrase, ilmenorutile, and bastnasite. Most of niobium and rare earth metals were disseminated......
high affinity and selectivity towards Ce(Ⅲ) ions in aqueous solutions and bastnasite ore samples.2-Hydroxyethyl methacrylate(HEMA) and N-methacryloylamido antipyrine(MAAP) were used as functional......