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Effect of mechanical activation on alkali leaching of chromite ore ZHANG Yang(张 洋)1, 2, ZHENG Shi-li(郑诗礼)1, DU Hao(杜 浩)1, XU Hong-bin(徐红彬)1, ZHANG Yi(张 懿)1 1. National Engineering Laboratory.... It is observed that the extraction ratio reaches 97% after leaching for 200 min when chromite ore is mechanically activated for 10 min, but only 34% if not activated. Mechanical activation can decrease......
BIPOLAR PULSED PECVD OF ALUMINA HARD COATINGS O.Kyrylov1,D.Neuschütz1,R.Cremer1 (1.Lehrstuhl fur Theoretische Huttenkunde,RWTH Aachen,D-52056 Aachen,Germany) Abstract:In the last years a variety... the usage of pulsed plasmas is alumina. Although crystalline α-alumina can be de-posited by thermal CVD at temperatures above 1000℃ for two decades, no process forthe deposition of crystalline alumina......
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ARTICLE J. Cent. South Univ. (2019) 26: 2119-2128 DOI: https://doi.org/10.1007/s11771-019-4159-7 Simulation of alumina dissolution and temperature response under different feeding quantities... Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: In the feeding process of aluminum electrolytic, feeding quantity of alumina affects eventually......
Process of aluminum dross recycling and life cycle assessment for Al-Si alloys and brown fused alumina HONG Jian-ping(洪建平)1, WANG Jun(王 俊)1, CHEN Hai-yan(陈海䶮)2, SUN Bao-de(孙宝德)1, LI Jia-jing(李家镜... by environmentally efficient and friendly methods. Two methods of Al dross recycling which could utilize Al dross efficiently were presented. High-quality aluminum-silicon alloys and brown fused alumina (BFA) were......
Pressure leaching technique of smelter dust with high-copper and high-arsenic XU Zhi-feng(徐志峰), LI Qiang(李 强), NIE Hua-ping(聂华平) School of Materials and Chemical Engineering, Jiangxi... _____________________________________________________________________________________________________ Abstract: The application of pressure leaching technology in the treatment of high-copper and high-arsenic dust was studied. The pressure leaching technique was determined as follows......
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Separation efficiency of alumina particles in Al melt under high frequency magnetic field GUO Qing-tao(郭庆涛)1, CAO Zhi-qiang(曹志强)2, ZHANG Zhong-tao(张忠涛)2, LI Ting-ju(李廷举)2, JIN Jun-ze(金俊泽)2, HONG...; Abstract: The effects of separation time and magnetic induction intensity on the separation efficiency of alumina particles......
Microbial leaching of marmatite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans WANG Jun(王 军), QIU Guan-zhou(邱冠周), QIN Wen-qing(覃文庆), ZHANG Yan-sheng(张雁生) School... was studied. After leaching for 29 days, the leaching ratio of zinc was 91%. Three kinds of bacteria, mixture-based bacteria, 9K-based bacteria and sulfur-based bacteria were used in marmatite leaching......
Intensification of pretreatment and pressure leaching of copper anode slime by microwave radiationYANG Hong-ying(杨洪英)1, MA Zhi-yuan(马致远)1, 2, HUANG Song-tao(黄松涛)2, LV Yang(吕阳)1, XIONG Liu(熊柳)1(1... 100088, China)Abstract:The application of microwave irradiation for pretreatment of copper anode slime with high nickel content prior to pressure sulfuric acid leaching has been proposed. The microwave......
