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process of phytic acid 图8 镁合金表面水滑石/植酸复合膜成膜机理示意图 Fig. 8 Schematic diagram of formation of LDHs/PA film on magnesium alloy 3 结论 1) 采用植酸对AZ31镁合金单一水滑石膜进行后处理,有效改善了水滑石膜的裂纹,膜层致密性和均匀性得到提高.当植酸溶液的..., SHAO-Lin. Study of composition and corrosion protection afforded by phytic acid conversion coatings applied to AZ91D magnesium alloy[J]. Journal of Dalian University of Technology, 2006, 46(1): 16-19......
Reductive leaching of indium from the neutral leaching residue using oxalic acid in sulfuric acid solutionF.Maddah,M.Alitabar,H.YoozbashizadehDepartment of Materials Science and Engineering, Sharif University of Technology摘 要:The present study evaluates the reductive leaching of indium from indium-bearing zinc ferrite using oxalic acid as a reducer......
Trans. Nonferrous Met. Soc. China 22(2012) 1655-1660 Effects of boric acid on microstructure and corrosion resistance of boric/sulfuric acid anodic film on 7050 aluminum alloy DU Nan, WANG Shuai...; accepted 14 October 2011 Abstract: The microstructure and corrosion resistance of different boric/sulfuric acid anodic (BSAA) films on 7050 aluminum alloy were studied by atomic force microscopy (AFM......
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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......