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Quantitative Analysis and Affecting Factors of the Overlapping Degree of Interfacial Transition Zone between Neighboring Aggregates in Concrete孙国文1,2,孙伟1,21. School of Materials Science... to measure the overlapping degree between the interfacial transition zone (ITZ) of neighboring aggregate particles was put forward. The formula was further deduced to quantitatively analyze the influence......
, such as Pb, Bi, Au and Ag are left in the residue. Key words: silver separated residue; smelting; leaching; enrichment 分银渣是铜阳极泥经过提取大部分的铜,硒,金,银后留下的残渣.由于分银渣中含有大量的金属铅,锡,锑,铋和一部分贵金属,故处理分银渣时,不仅要回收铅,锡,锑和铋,还要使贵金属富集,从而......
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Corrosion resistance of Mg(OH)2/Mg-Al-layered double hydroxide coatings on magnesium alloy AZ31:influence of hydrolysis degree of silaneQing-Song Yao,Zhong-Chao Li,Zai-Meng Qiu,Fen Zhang,Xiao-Bo Chen...)coatings were modified with methyltrimethoxysilane(MTMS)on magnesium alloys.Effect of hydrolysis degree of silane solution on coating formation was investigated.Chemical compositions and surface......
, 2008, 49(2): 289-293. Corrosion mechanism of BaZrO3 refractory in titanium enrichment melt CHEN Guang-yao1, LI Bao-tong1, ZHANG Hao1, GAO Peng-yue1, QIN Zi-wei1, LU Xiong-gang1, 2, LI Chong-he1, 2 (1.... Shanghai Special Casting Engineering Technology Research Center, Shanghai 201605, China) Abstract: The titanium enrichment (66%, mole fraction) alloy was melted in the BaZrO3 crucible to investigate......
of LREEs and Fe normalized enrichment factors indicated that sediments were not enriched with light rare earth elements derived from effluents of anthropogenic activi-ties. Results of the total... earth elements (LREEs) and the heavy rare earth elements (HREEs). The chondrite-normalized ratios of REEs showed LREEs enrichment and flat HREE depletion. Key words:enrichment factor; rare earth......
REE Enrichment in Early Cambrian Gezhongwu Formation Phosphorous Rock Series in Sanjia, Zhijin County, Guizhou Province, China Wang Qiang1,Yang Ruidong1,Bao Miao1,Gao Hui1 (1.Graduate School, Guizhou University, Guiyang 550025, China) Abstract:Phosphate concretions from the Gezhongwu Formation at Sanjia, Zhijin County, China, were studied systematically in this work. In terms of the rules......
; 文章编号:1672-7207(2017)11-2843-08 Behavior of alkali metal removal and enrichment in particles during sintering process FAN Xiaohui, HE Xiangning, GAN Min, ZHOU Yang, JI Zhiyun, LI Qiang... from the whole industrial process. Sinter pot tests were conducted to study the removal behaviors of K, Na and relevant influencing factors. The enrichment characteristics and occurrence states of K......
pore water pressure was derived with the specific solutions for the consolidation degree of composite ground, reinforced area and underlying stratum under instant load obtained respectively. Finally... stratum during the dissipating process of excess pore water pressure.Key words:composite ground; CFG piles; permeability; double-layered foundation; consolidation degree......
高温焙烧-磁选联合处理包钢含锌粉尘的研究王春龙1,张建良1,刘征建1,胡正文1,林祥海1,苏步新1(1.北京市北京科技大学 冶金与生态工程学院)摘 要:对转底炉处理含锌粉尘进行了实验室研究,通过设计正交试验考察了焙烧温度,焙烧时间及配煤量对含锌粉尘脱锌率,金属化率,磁选精矿产率以及铁回收率的影响.试验结果表明最佳工艺参数为:焙烧温度1 350℃,焙烧时间25min,配煤量6%.在此条件下的脱锌率和金属化率分别高达99.29%和99.68%,精矿产率为46.57%,铁回收率为95.46%.对经过最优方案焙烧并磁选......
