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滴定法测定硫酸-硫脲体系中的草酸 何培炯1,王丽娟1,杨明德1,唐红萍1 (1.清华大学,核能技术设计研究院,北京,102201) 摘要: 酸性硫脲溶液是季铵盐溶剂萃取金体系的有效反萃溶液[1],加人草酸后能较大范围地提高反萃效率,为了研究草酸对反萃的影响,需要测定体系中的草酸. [全文内容正在添加中] ......
Extraction of cobalt from laterite ores by citric acid in presence of ammonium bifluoride LI Guang-hui(李光辉),RAO Ming-jun(饶明军), LI Qian(李 骞), PENG Zhi-wei(彭志伟), JIANG Tao(姜 涛)1 School...; Abstract: Citric acid was used to selectively extract cobalt from limonite-type laterite ores......
Decomposition mechanism of chromite in sulfuric acid–dichromic acid solutionQing Zhao1,2,Cheng-jun Liu1,2,Bao-kuan Li2,Mao-fa Jiang1,21. Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education),Northeastern University2. School of Metallurgy,Northeastern University摘 要:The sulfuric acid leaching process is regarded......
J. Cent. South Univ. Technol. (2007)04-0520-04 DOI: 10.1007/s11771-007-0101-5 Preparation and enantiosorption of L-aspartic acid pillared hydrotalcites PENG Xia-hui(彭霞辉)1,2, HUANG Ke-long(黄可龙)2...) ______________________________________________________________________ Abstract:L-aspartic acid (Asp) pillared hydrotalcites were prepared by direct reaction of the L-Asp anion with layered double......
Leaching isomorphism rare earths from phosphorite ore by sulfuric acid and phosphoric acidHui-Xin Jin1,2,Fu-Zhong Wu1,2,Xiao-Hao Mao1,Mei-Long Wang1,Hong-Yan Xie11. College of Materials... in the world contain isomorphism rare earths(RE) which are considerably difficult to be leached into solution in the wet phosphoric acid process. In this work, a systematic study of leaching RE using sulfuric......
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...) from sulphuric acid medium with Di(2-ethylhexyl) phosphoric acid(DEHPA) was studied. The influence of sulphate ion, acidity, extractant concentration as well as the presence of fluoride ion......
Study on Extracting Rare Earth from Sulfate System by Long-Chain Fatty Acid ZHAO Zengqi1,Xu Yanhui1,Liu Quansheng2 (1.Baotou Research Institute of Rare Earth, Baotou 014010, China;2.Inner Mongolia Polytechnic University, Huhehaote 010062, China) Abstract:The extraction of rare earths by long-chain fatty acid in kerosene from sulphate system was described.It was demonstrated from......
Study on Phytic Acid Conversion Coating on Mg-Li Alloy黄晓梅Key Laboratory of Superlight Materials and Surface Technology,Ministry of Education,Harbin Engineering University摘 要:The impact of phytic acid concentration,immersion time and soaking temperature on phytic acid conversion coating of the Mg-Li alloy are studied.The surface morphology......
; 文章编号:1672-7207(2012)01-0038-08 Ions distributional characteristics of wet precipitation in typical acid rain areas of China XIANG Ren-jun1, 2, CHAI Li-yuan1, ZHANG Qing-mei2, XIAO... monitoring data of the three catchments, i.e., Caijiatang, Leigongshan and Tieshanping in typical acid areas of China, the chemical compositions characteristics of wet precipitation were studied......
