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Recovery of oxalic acid from mother-liquor containing hydrochloric acid and cobalt by solvent extraction with P350 TIAN Qing-hua(田庆华), GUO Xue-yi(郭学益), LI Zhi-hai(李治海) School of Metallurgical... ____________________________________________________________________________________________ Abstract: The solvent of P350 was applied to extract and separate the oxalic acid from the mother-liquor originated from the precipitation of cobalt by oxalic acid, and its extraction......
and oxalic acid with copper-loaded activated carbon RAO Yi-fei(饶义飞)1, LUO Han-jin(罗汉金)1, WEI Chao-hai(韦朝海)1, LUO Ling-feng(罗凌峰)2 1. College of Environmental Science and Engineering, South China... and tested as a catalyst in the ozonation of phenol and oxalic acid. Cu/AC was characterized using XRD, BET and SEM techniques. Compared with ozonation alone, the presence of Cu/AC in the ozonation......
Preparation of large particle rare earth oxides by precipitation with oxalic acid WANG Mitang1,LI Mei1,SHI Zhenxue1,LIU Zhaogang1,HU Yanhong1 (1.School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China) Abstract:The large particle CeO2 and Y2O3 were prepared using oxalic acid as precipitator. The effects of operational parameters......
by scanning electron microscopy (SEM). Optimum process parameters, namely, temperature of 25 ℃, current density of 400 A/m2, distance between anode and cathode of 50 mm, oxalic acid dosage of 10 g/L... of oxalic acid to electrolyte has no remarkable change in it if the dosage is appropriate. Key words: antimony; electro refining; bismuth; oxalic acid ......
Trans. Nonferrous Met. Soc. China 22(2012) 456-460 Red-mud treatment using oxalic acid by UV irradiation assistance YU Zhang-long1, SHI Zhi-xia2, CHEN Yong-mei1, NIU Yin-jian1, 3, WANG Yong-xia1... the Bayer process, in which the iron minerals should be removed before red-mud is used to produce refractory materials. The iron minerals in red-mud were extracted by oxalic acid solution. The content......
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......
Photocatalytic activity of CuO towards HER in catalyst from oxalic acid solution under simulated sunlight irradiation YAO Mao-hai(姚茂海)1, TANG You-gen(唐有根)1, ZHANG Li(张 丽)2, YANG Hai-hua(杨海华)1... evolution reaction (HER) in oxalic acid solution under simulated sunlight irradiation. The highest photocatalytic activity of the as-obtained CuO was achieved at the calcination temperature of 1 000......
; 文献标志码:A 文章编号:1672-7207(2011)09-2558-05 Oxidation of oxalic acid by chlorine in mother-liquor originated from precipitation of cobalt... of Metallurgical Engineering, Central South University, Changsha 410083, China) Abstract: In order to remove the oxalic acid left in the mother-liquor originated from the precipitation of cobalt by oxalic acid......
; 文章编号:1672-7207(2009)04-0884-07 Selective extraction of oxalic acid from cobalt mother-liquor with complexing agent P350 TIAN Qing-hua, LI Zhi-hai, GUO Xue-yi (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The solvent of P350 was applied to extract and separate the oxalic acid from the mother-liquor......
