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;controlled by particle and film diffusions. Key words: heavy metals removal; hydrogel; wastewater; adsorption; diffusion mechanism 1 Introduction Heavy metals are serious causes... is very important to organisms and is a dissolving medium of heavy metals. Many toxic heavy metals to human, such as copper (Cu), lead (Pb), cadmium (Cd), and chromium (Cr) [1,2], should be removed from......
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A new group contribution-based method for estimation of flash point temperature of alkanesDAI Yi-min(戴益民)1, 2, LIU Hui(刘辉)2, CHEN Xiao-qing(陈晓青)1, LIU You-nian(刘又年)1, LI Xun(李浔)2, ZHU Zhi-ping(朱志平)2... to determine the fire and explosion hazards of a liquid. New group contribution-based models were presented for estimation of the flash point of alkanes by the use of multiple linear regression (MLR......
of Rare Metals, Central South University, Changsha 410083, China) Abstract: Using the calculation method of interaction energy between flotation reagent and mineral, the calculation formula of absorption energy between adsorbent and adsorbed groups was derived for the separation of tungsten and molybdenum. Group electronegativities of related atom groups were calculated based......
, Ag2S, Au2S3纳米晶粒径分别为30, 24和22nm, 均具有主红外透过, 光致发光等性能, 并在紫外-可见吸收光谱中出现了常规材料所不具备的新的吸收峰. 关键词: 纳米晶; 铜族硫化物; 仿生合成; 模板; 蛋膜 中图分类号: O61; TQ59 文献标识码: A Biomimetic synthesis of copper group sulphide... membrane and its control over ions transfer, three kinds of nanocrystals of copper group sulphides were synthesized with eggshell membrane as a template. This indicates the feasibility......
Influence of sulfur addition/solids content ratio on removal of heavy metals from mine tailings by bioleachingHe Zhong-bing (贺仲兵)1,2, Liao Ting (廖婷)1,2, Liu Yun-guo (刘云国)1,2, Xiao Yu (肖玉)1,2, Li... (Ministry of Education), Hunan University, Changsha 410082, China)Abstract:The effect of sulfur addition/solids content (SA/SC) ratio on heavy metals (e.g. copper, zinc and lead) obtained from mine......
J. Cent. South Univ. (2012) 19: 2591-2597 DOI: 10.1007/s11771-012-1315-8 Mechanism and experiment of substituting high drainage roadway with directional long drilling group to extract pressure... roadway or drilling on the gas seepage field was analyzed, and the extraction mechanism was clarified. On this basis, the academic thought of directional long drilling group instead of high drainage......
, gold, palladium, platinum, reactive metals and nickel based brazed alloys can be applied in brazing with titanium alloy for low-temperature service [6,7]. STS304 is a typical type of austenitic...Trans. Nonferrous Met. Soc. China 22(2012) s639-s644 Microstructures of brazing zone between titanium alloy and stainless steel using various filler metals Taeshin CHUNG1, Jungsoo KIM2, Jeongseok......
Trans. Nonferrous Met. Soc. China 28(2018) 757-765 Construction of reasonable pillar group for undersea mining in metal mine Zhi-xiang LIU, Tian LUO, Xiang LI, Xi-bing LI, Zhen HUAI, Shao-feng WANG... Gold Mine, five schemes of secure pillar group are designed. Using the method of the renormalization group, the failure mechanism of the pillar group is explored, and the safety factor of the pillar......
Electrochemical Nucleation of Titanium on Platinum赵保东摘 要:ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌＮｕｃｌｅａｔｉｏｎｏｆＴｉｔａｎｉｕｍｏｎＰｌａｔｉｎｕｍＺｈａｏＢａｏｄｏｎｇ(赵保东)ＢｒａｎｃｈＣａｍｐｕｓｏｆＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙ,Ｂｅｉｊｉｎｇ１０００８３,ＣｈｉｎａＲｅｃｅｉｖｅｄ１７Ｆｅｂ...关键词:......
