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treatment on morphology of flower-like aluminum hydroxide sulfate product assembled by flakes FU Gao-feng1, WANG Jing2, LIU Yan2, DING You-dong1 (1. School of Materials and Metallurgy, Northeastern... hydroxide sulfate and flower-like boehmite were synthesized using Al2(SO4)3·18H2O as precursor, urea as precipitator, and mixture solution of ethanol and water (volume ratio is 2:1) as solvent......
hydroxide added.The apparent activation energy was calculated,and the results indicate that the overall reaction involves more than one single step.The reaction with a lower content(<15 wt%) of calcium hydroxide can be divided into two steps,while the reaction with a higher content(>15 wt%) involves another step which denotes the decomposition of newly formed calcium carbonate during roasting.The......
hydroxide added.The apparent activation energy was calculated,and the results indicate that the overall reaction involves more than one single step.The reaction with a lower content(<15 wt%) of calcium hydroxide can be divided into two steps,while the reaction with a higher content(>15 wt%) involves another step which denotes the decomposition of newly formed calcium carbonate during roasting.The......
Trans. Nonferrous Met. Soc. China 25(2015) 628-639 Preparation of potassium salt with joint production of spherical calcium carbonate from sintering dust Guang ZHAN, Zhan-cheng GUO State Key... solution indicates that the massive calcium sulfate in the leaching solution should be removed first in order to obtain the pure potassium salt. In order to provide theoretical guidance to inhibit......
Thermodynamics analysis on sodium hydroxide decomposition of wulfenite ZHANG Gang, ZHAO Zhong-wei, LI Jiang-tao, CHEN Ai-liang, HUO Guang-sheng, LI Hong-gui (School of Metallurgical Science...-Mo-H2O system was established on the basis of thermodynamic data at 25 ℃. Thermodynamic analysis was carried out to show the effect of technical conditions on sodium hydroxide decomposition of wulfenite......
Effect of barium and potassium promoter on Co/CeO2 catalysts in ammonia synthesisBingyu Lin,Yi Liu,Lan Heng,Jun Ni,Jianxin Lin,Lilong JiangNational Engineering Research Center of Chemical Fertilizer Catalyst,College of Chemical Engineering,Fuzhou University摘 要:The Co/CeO2 catalysts promoted with Ba or K were prepared to study the effect of promoter......
Effect of barium and potassium promoter on Co/CeO2 catalysts in ammonia synthesisBingyu Lin,Yi Liu,Lan Heng,Jun Ni,Jianxin Lin,Lilong JiangNational Engineering Research Center of Chemical Fertilizer Catalyst,College of Chemical Engineering,Fuzhou University摘 要:The Co/CeO2 catalysts promoted with Ba or K were prepared to study the effect of promoter......
Mechanochemical Reaction of Lanthanum Carbonate with Sodium Hydroxide and Preparation of Lanthanum Oxide Nanoparticle 李永绣1,王志强1,周雪珍1 (1.School of Chemistry and Materials Science, Nanchang... of lanthanum carbonate with sodium hydroxide and subsequent heat treatment was studied using X-ray diffraction, differential thermal and thermo gravimetric analysis and transmission electron......
spherical nickel hydroxide powder is optimum as positive electrode of high power Ni-MH battery because of its excellent property. But the performances at high temperature (above 50 ℃) is still... and mechanically added with 1% (atomic fraction) Er2O3 at 1C are 12.6% and 11.7%, respectively, higher than those of the samples without erbium at 70 ℃. Key words: Ni-MH battery; nickel hydroxide......
Hydrothermal synthesis of lanthanide(hydr)oxide micro/nanorods in presence of tetrabutylammonium hydroxide李银艳,徐时清摘 要:Uniform and well-defined lanthanide hydroxide and oxide micro/nanorods Ln(OH)3(Ln=La, Pr, Sm, Eu, Gd, Er) and Gd(OH)3:Eu3+, Gd2O3:Eu3+ were successfully synthesized through a green and facile hydrothermal method. Tetrabutylammonium......
