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Study of Technology of Stripping Nickel Coating on NdFeB Permanent Magnet Rao Houzeng1,Jiang Longfa1,LI Guohua2,Lin Guanjie1 (1.Department of Environmental and Chemical Engineering, Nanchang... in the solution of stripping the nickel coating on NdFeB permanent magnet on the stripping result were studied systematically.The practical formular contains mainly the oxidant m-O2NC6H4SO3Na, the complex......
for 15 min. The stripping was performed by 0.5 mol/L HF with efficiency of 86.7%. Key words: extraction; niobium; triazoloquinazolinone; stripping efficiency ... dissolved in methylene chloride as diluent. The extraction step was followed by the stripping step in which equal volumes of the loaded extractant and the stripping agents (distilled water, 0.5 mol/L HF......
Extraction and Stripping of Ytterbium (Ⅲ) from H2SO4 Medium by Cyanex 923 Li Hongfei1,Meng Shulan1,Li Deqian1,Wang Weiwei1,Wang Xianglan1 (1.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Changchun 130022, China;2.Graduate School of the Chinese Academy of Sciences, Beijing 100039, China) Abstract:The extraction and stripping of ytterbium(Ⅲ) from......
Surface Analysis of Chemical Stripping Titanium Alloy Oxide Films刘建华School of Materials Science and Engineering, Beihang University摘 要:The chemical stripping method of titanium alloy oxide films was studied. An environment friendly solution hydrogen peroxide and sodium hydroxide without hydrofluoric acid or fluoride were used to strip the oxide films......
Space-time principles of reducing stripping in furrow pitsShixiong Zhang, Guozhu Zeng, and Tao PengCollege of Resources and Environment Engineering, Wuhan University of’Technologv, Wuhan 430070... provided theoretical basis for convex slope in furrow pits to reduce stripping. Similar phenomena and examples are supplied simultaneously.关键词:......
Kinetics of stripping of gold loaded in DBC organic phase by sodium sulfiteZHU Ping and GU Guobang College of Environment Science and Engineering, Shanghai University, Shanghai 200072, China Department of Applied Chemistry, South China University of Technology, Guangzhou 510640, China摘 要:<正>The kinetics of stripping of gold loaded in dibutyl......
J. Cent. South Univ. (2016) 23: 3085-3091 DOI: 10.1007/s11771-016-3373-9 Solvent extraction mechanism and precipitation stripping of bismuth (III) in hydrochloric acid medium by tributyl phosphate... solution under the optimum condition. Moreover, oxalate was explored as a precipitation stripping agent for BiCl3·xTBP (x=2 or 3) complexes, by which Bi(III) was stripped in the form of Bi2(C2O4)3......
/g and stirring speed 600 r/min, Al concentration in dissolved solution increases from 77.56 mmol/L to 203.90 mmol/L. Key words: illite; roasting; Al; stripping 石煤是我国储量巨大的钒矿资源,储量达6.188×1010 t[1-2].我......
Recovery of copper and tin from stripping tin solution by electrodepositionBin Li1,De-An Pan1,Yu-Hui Jiang1,Jian-Jun Tian1,Shen-Gen Zhang1,Kun Zhang21. Institute for Advanced Materials and Technology...">In this paper, the method of recycling copper and tin by constant-current and constant-voltage electrolysis from the stripping tin solution of tinned copper wastes was studied. The experimental......
0 mol/L after six-stage counter-current extraction. While the phase ratio (O/A) of the stripping was at 1.0, the recovery of oxalic acid attained more than 95% after ten-stage counter-current stripping. Key words: P350; counter-current; solvent extraction; oxalic acid; stripping ____________________________________________________________________________________________ 1 Introduction......
