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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... such as stirring velocity, precipitation temperature, feeding speed, aging time, precipitation method, and calcination temperature on particle size and loose density of CeO2 were studied. Under the particular......
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... the precipitation reaction, the mixtures solution allowed to settle until three distinct phases were noticeable (solid bismuth oxalate, aqueous precipitating solution, and stripped organic solution......
; 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 oxalate TIAN Qing-hua1, 2, YI Yu1, GUO Xue-yi1 (1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China; 2. Postdoctoral Ambulatory Station......
is still a challenge in materials synthesis.Therefore,continuous precipitation of cerium oxalate(precursor of ceria) was carried out at different operational conditions such as reactant concentration...Cerium dioxide with large particle size prepared by continuous precipitation李梅,王觅堂,柳召刚,胡艳宏,吴锦绣School of Material and Metallurgy,Inner Mongolia University of Science and Technology摘 要:
Microstructure and properties of oxalate conversion coating on AZ91D magnesium alloy JIANG Yong-feng(蒋永锋), ZHOU Hai-tao(周海涛), ZENG Su-min(曾苏民) School of Materials Science and Engineering, Central...; Abstract: The oxalate coating formed on AZ91D magnesium alloy by chemical conversion treatment methods in oxalate salt......
for precipitation to yield nuclei in a huge amount, while the non-mixing regions with much lower super-saturation favor helping deactivation of micro-crystal surfaces [16]. In this work, lanthanum oxalate... Trans. Nonferrous Met. Soc. China 22(2012) 925-934 Kinetics of thermal decomposition of lanthanum oxalate hydrate ZHAN Guang1, YU Jun-xia1, XU Zhi-gao1, ZHOU Fang2, CHI Ru-an1 1. Hubei Novel Reactor......
mol/L. Due to the fractional precipitation of Cu2+ and Ni2+, Cu-Ni composite is obtained after the thermal decomposition of Cu-Ni oxalate complex salts prepared in a pure water system when pH>7.0....], their homogeneous precipitation and uniform distribution in oxalate complex salts would be the significant issues that affect the quality of the final products. Thus, a deep and comprehensive......
Precipitation of flaky moolooite and its thermal decompositionJin-yu Wu,Kai HuangSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing摘 要:Moolooite particles with flaky morphology were synthesized by mixing dilute solutions of copper nitrate and sodium oxalate in the presence of citric acid. Solution p H value......
Chuan-fu, LI Tie-jing, et al. Thermo- dynamic analysis on preparation of fibrous NiO precursor powders with oxalate precipitation process[J]. Transactions of Nonferrous Metals Society of China, 2005, 15...; 文献标志码:A 文章编号:1672-7207(2011)04-0876-08 Preparation of fibrous porous cobalt powders by thermal decomposition of cobalt oxalate complex......
as a reducing agent. Sodium hydroxide, ammonium oxalate and sodium carbonate were used for precipitation reaction. All solutions were prepared with distilled water and all reagents were of analytical grade...; (3) The effects of temperature, pH and the ammonium oxalate concentration on the precipitation efficiency of cobalt were investigated. The experiment results are illustrated......