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of millscale from steel plant and the effects of the liquid-solid ratio, the reaction temperature, the leaching time and the sulfuric acid excessive times was investigated. The best technical conditions of the leaching process were ascertained, and the kinetics of leaching was studied. The results show that when liquid-solid ratio is 3?1, the sulfuric acid excess is 1.25 times, reaction temperature......
Thermochemical Study on Coordination Complex of Neodymium Trichloroacetic Acid with 8-Hydroxyquinoline 刘义1,李强国2,屈松生1 (1.College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072... as ΔfHm°[Nd(TCA)3*3H2O,s,298.15K]= -3053.3 kJ*mol-1 and ΔfHm°[Nd(TCA) (C9H6NO)2 ,s, 298.15K] = -1355.6 kJ*mol-1. Key words:rare earths; neodymium chloride six-hydrate; trichloroacetic acid......
Biodegradation of ferulic acid by a newly isolated strain of Cupriavidus sp. B-8CHAI Li-yuan(柴立元)1, ZHANG Huan(张欢)1, YANG Wei-chun(杨卫春)1, ZHU Yong-hua(朱咏华)2, YANG Zhi-hui(杨志辉)1, ZHENG Yu(郑玉)1, CHEN... of lignin and abundantly existing in softwood and hardwood, ferulic acid has been used as a lignin-related compound for lignin biodegradation study. Biodegradation of ferulic acid by Cupriavidus sp. B-8......
Antimony recovery from SbCl5 acid solution by hydrolysis and agingLing Meng1,Shen-Gen Zhang1,De-An Pan1,Bin Li1,Jian-Jun Tian1,Alex.-A.Volinsky21. Institute of Advanced Materials and Technology... to recover Sb from the SbCl5 acid solution obtained by the chloride leaching process of the tin-depleted residue. Sb was recovered in the form of hydrated antimony pentoxide through the hydrolysis......
Oxidation Desulfurization Activity of Phosphotungstic Acid Supported on Yttrium-Modified USY赵地顺,周二鹏,刘会茹,王建龙摘 要:Y-Modified USY was prepared by ion exchange of USY slurry with 0.01 mol·L-1 Y(NO3)3. Phosphotungstic acid (HPW) catalyst supported on USY and Y-USY was prepared by an impregnation method. The materials were characterized by NH3-TPD, XRD, and N2......
Sulfuric acid leaching kinetics of South African chromiteQing Zhao1,2,Cheng-jun Liu1,Pei-yang Shi1,Bo Zhang1,Mao-fa Jiang1,Qing-song Zhang1,Ron Zevenhoven2,Henrik Saxén21. Key Laboratory...">The sulfuric acid leaching kinetics of South African chromite was investigated. The negative influence of a solid product layer constituted of a silicon-rich phase and chromium-rich sulfate......
Rare Earth Complexes of Aminopolycarboxylic Acid Ⅱ.Synthesis and Structure of Lanthanum Complex of Dipicolinic Acid金天柱,刘军钪,张慧珍,黄春辉,徐光宪,韩玉真,施倪承摘 要:<正> Complexes of the general formula,(Me4N)2[(Ln(HDPA)2(DPA)]·Cl,have been synthesized,whereLn=La,Ce,Pr,Nd,Sm and H2DPA=dipicolinic acid.Among them,the crystal structure of the La complexhas been......
Synthesis, characterization and enhanced luminescence of terbium complexes with 2-pyrazinecarboxylic acid and butanedioic acid by inert-fluorescent lanthanide ions孔凯,张海霞,马瑞军,陈英楠,褚海斌,赵永亮College of Chemistry and Chemical Engineering,Inner Mongolia University摘 要:Ten solid terbium complexes with 2-pyrazinecarboxylic acid (Hpyca) and butanedioic acid (BDAH......
Synthesis, characterization and enhanced luminescence of terbium complexes with 2-pyrazinecarboxylic acid and butanedioic acid by inert-fluorescent lanthanide ions孔凯,张海霞,马瑞军,陈英楠,褚海斌,赵永亮College of Chemistry and Chemical Engineering,Inner Mongolia University摘 要:Ten solid terbium complexes with 2-pyrazinecarboxylic acid (Hpyca) and butanedioic acid (BDAH......
in the stimulated acid rain was investigated by means of hydrogen evolution technology, polarization curve, electrochemical impedance spectroscopy, scanning electronic microscopy and X-ray diffractrometry. The shorter incubation period to the onset of corrosion, the more negative corrosion potential and the lower pH the higher corrosion rate value in stimulated acid rain is. The magnesium alloy plate prefers......