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Spatial distribution of chromium in soils contaminated by chromium-containing slag HUANG Shun-hong(黄顺红)1, 2, PENG Bing(彭 兵)1, YANG Zhi-hui(杨志辉)1, CHAI Li-yuan(柴立元)1, XU You-ze(许友泽)1, SU Chang...; Abstract: To evaluate the metal chromium (Cr) contamination of soil at a chromium-containing slag site by ferrochromium production, the contaminated sites, under slag heap......
, and coke charge on the distribution of Cu, Fe, S, O, Pb, Zn, As, the heat balance, and the lead loss in slag, were presented and discussed. Key words: thermodynamic model; lead blast furnace; lead.... It shows that the modeling results for the slag and lead bullion are in good agreement with the plant data. Table 1 Mineralogical compositions of sinter Table 2 Compositions of coke......
in copper and lead pyro-metallurgical process. The behavior of the valuable metals is investigated with various operating parameters, such as coal powder dosage, slag type, reaction temperature and time... and ICP-AES method were used to quantitatively analyze the proportion of bismuth, lead and copper in the smelting slag. And silver content was determined with fire-assaying method. The phase composition......
J. Cent. South Univ. (2016) 23: 798-807 DOI: 10.1007/s11771-016-3126-9 Effect of copper slag recovery on hydrometallurgical cut-off grades considering environmental aspects AFSHIN AKBARI1, ESMAEIL... sources of copper. It is not only regarded as a waste but also identified as another resource extracting base metals. Slags are characterized by copper high grade. Thus, slag copper recovery can be led......
J. Cent. South Univ. Technol. (2009) 16: 0768-0773 DOI: 10.1007/s11771-009-0128-x Recycling of industrial waste and performance of steel slag green concrete LI Yun-feng(李云峰)1, 2, YAO Yan(姚 燕...: Workability and mechanical properties of steel slag green concrete with different types of steel slag and different dosages of admixtures were investigated. The effectiveness of steel slag powder......
compositions of high lead slag (mass fraction, %) 图1 含铅玻璃和高铅渣的XRD谱 Fig. 1 XRD patterns of funnel glass and high lead slag 从XRD分析结果可以看出,CRT锥玻璃为无定形组织,在20°~40°之间出现鼓包,呈现出典型的非晶状态.原始高铅渣的物相组成是以硅酸铅... study on direct reduction of lead-rich slag[J]. Nonferrous Metals (Extractive Metallurgy), 2011(4): 10-13. [26] 陈 霖, 杨天足, 刘伟锋, 张杜超, 宾 舒, 宾万达. 高铅渣液态还原过程中有价金属分布[J]. 中国有色金属学报, 2014, 24(4): 1056-1062. CHEN......
the furnace, giving CO as main reducing gas. A calculated amount of CaO ensures to get low viscosity in the lead slag [2] and a low operation temperature at the bottom of the furnace [3]. The lead... and chemical phenomena. Lead can be trapped as metallic particles in the slag [9], due to its composition and viscosity. CALVO and BALLESTER [10] reported the effect of the oxygen potential......
or mechanical devices to increase the mass transfer in the bulk phases. Hence, slag properties such as viscosity are important. A high-viscosity would lead to low velocities in the slag and hence a low mass... Removal of boron from metallurgical grade silicon by electromagnetic induction slag melting LUO Da-wei1, LIU Ning1, LU Yi-ping1, ZHANG Guo-liang1, LI Ting-ju1, 2 1. School of Materials Science......
从酸浸渣中综合回收金银铁铅的试验研究薛元昕1,薛光2(1.山东省烟台市烟台职业学院2.中国人民武装警察部队 黄金第七支队)摘 要:对从酸浸渣中综合回收金银铁铅进行了试验研究.试验结果表明,采用试验确定的工艺方法,不但可回收酸浸渣中铁铅,还可提高金银的氰化浸出率,分别可达98%和70%以上,能获得较好的经济效益和社会效益.关键词:酸浸渣; 浸铁; 浸铅; 氰化浸出; 金; 银......
Vaporization behavior of lead from the FeO-CaO-SiO2-Al2O3 slag systemEiki KasaiInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University摘 要:Vaporization behavior (1163-1463 K) of lead in the slag system of FeO-CaO-SiO2-Al2O3 with CaCl2 was examined. A thermodynamic estimation with the principle of Gibbs free energy minimization......