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Toxic Effects of Lanthanum, Cerium, Chromium and Zinc on Potamogeton Malaianus SHI Guoxin1,XU Qinsong1,Wang Chuntao1,Wang Xue1 (1.College of Life Science, Nanjing Normal University, Nanjing 210097, China) Abstract:The toxic effects of rare earth elements such as lanthanum, cerium and heavy metal elements such as chromium, zinc on Potamogeton malaianus Miq. were studied. The results show......
of metal hydroxides with other flame retardants has been performed on many investigations[16-17]. Many halogen- free flame retardants, such as red phosphorus, phosphate esters and zinc borate, have been...J. Cent. South Univ. Technol. (2008) 15: 779-785 DOI: 10.1007/s11771-008-0144-2 Flame retardancy effect of surface-modified metal hydroxides On linear low density polyethylene KONG Xiang-jian(孔祥建......
by production rate of copper metal declines to 1.94 kg-CO2/kg-Cu, 19% lower than unallocated average. The CO2 inventory of zinc ingots produced in Japan is estimated as the same method of copper. But mine data are more limited compared with copper mine. The amount of zinc metal in achieved mine data is 58% of the total imported zinc, as listed in Table 3. The weighted 1-Escondida; 2-Grasberg......
. Key words: synergistic extraction; cadmium; zinc; Mextral V10; aromatic hydroxamic 1 Introduction The rapid development of industrialization brought huge economic benefits, at the same time heavy metal... of cadmium Fig. 6 Effect of Mextral V10 and Mextral 622H volume ratio on extraction pH isotherms of zinc 3.3 Effect of A/O ratio on extraction of metal ions In this set of tests, the A/O ratios of 1:2, 1:1......
of Nonferrous Metals, School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China Received 13 August 2012; accepted 20 November 2012 Abstract: The thermodynamics in zinc hydrometallurgical process was studied using a chemical equilibrium modeling code (GEMS) to predict the zinc solubility and construct the species distribution and predominance diagrams for the Zn(II......
increasing attention [1]. Zinc ferrite is generated as a byproduct of the desulfurization roasting of high iron-bearing zinc ores, resulting in not only heavy metal contamination but also the waste... to zinc oxide and magnetite by CO over entire temperature range (ΔG of Eq. (6) is negative). The ΔG for the generation of ferrous oxide and zinc metal is positive (Eqs. (7)-(9)), which means......
Trans. Nonferrous Met. Soc. China 22(2012) 228-240 Shot noise analysis on corrosion behavior of zinc alloy (ZnAl4Cu1) under dry-wet cycles CHEN An-na1, CAO Fa-he1, LIU Wen-juan1, ZHENG Li-yun1, ZHANG Zhao1, ZHANG Jian-qing1, 2, CAO Chu-nan1, 2 1. Department of Chemistry, Zhejiang University, Hangzhou 310027, China; 2. State Key Laboratory for Corrosion and Protection, Institute of Metal Research......
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:1672-7207(2010)01-0039-05 Leaching zinc oxide ore in alkaline solution ZHAO Zhong-wei, JIA Xi-jun, CHEN Ai-liang, LONG Shuang, HUO Guang-sheng, LI Hong-gui (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: To achieve the circulatory leaching of zinc oxide ores, the Bayer process was used to treat bauxite to zinc hydrometallurgy......
aluminium (99.99%), pure lead (99.99%) and pure zinc (99.99%) by induction melting at 750 °C with the protection of argon. The molten metal was poured into a stainless steel mold and cooled down to room...J. Cent. South Univ. (2012) 19: 9-16 DOI: 10.1007/s11771-012-0965-x Influence of zinc on electrochemical discharge activity of Mg-6%Al-5%Pb anode WANG Nai-guang(王乃光), WANG Ri-chu(王日初), PENG Chao-qun......
