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霞), CHEN Qi-yuan(陈启元), HU Hui-ping(胡慧萍), YIN Zhou-lan(尹周澜), LI Jie(李 洁), ZHOU Jian-liang(周建良) (School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China... speed of O2 evolution for 2% WO3-TiO2/Nb2O5 catalyst is 151.8 ?mol/(L?h). Key words: photocatalysis; load; oxygen evolution; rutile TiO2; Nb2O5; WO3 1 Introduction Nowadays, because of the high......
, Central South University, Changsha 410083, China; 2. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China) Abstract: Based on the fact... of various conditions on the removal of S2- and the oxidation mechanism was investigated. The results show that the removal efficiency of bivalent sulfur ions is affected by the oxygen pressure inside......
through pyrolysis of ammonium paratungstate under O2/Ar atmosphere GAO You-liang1, 2, CHEN Qi-yuan1, YIN Zhou-lan1, ZHOU Jian-liang1, LI Jie1 (1. School of Chemistry and Chemical Engineering, Central.... The results indicate that with the increasing content of Ar, the oxygen vacancies of WO3 catalysts are increased, the photocatalytic activity for O2 evolution is advanced and the photocatalytic......
, Central South University, Changsha 410083, China; 2. School of Chemical Engineering and Technology, China University of Mining and Technology, Beijing 100083, China Received 23 May 2005; accepted 13...; Abstract: A new technology was put forward to deal with the carbonyl slag at low acidity and low oxygen pressure in the kettle. With the orthogonal......
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Trans. Nonferrous Met. Soc. China 29(2019) 1090-1098 Oxygen pressure leaching-flotation joint process for Jinbaoshan platinum group minerals Shuai RAO1,2,3, Zhi-qiang LIU1,2,3, Xian-yang QIU1,2,3... July 2018; accepted 19 November 2018 Abstract: An oxygen pressure leaching-flotation joint process was proposed to treat Jinbaoshan platinum group minerals to produce a desired concentrate. The result......
titanomagnetite as oxygen carrier HUANG Zhu-cheng, CAI Wei, YI Ling-yun, JIANG Xiong, WANG Lin, HU Cheng-fei, XIAO Hua-rong, ZHONG Rong-hai (School of Minerals Processing and Bioengineering, Central South...使得生物质气化反应更加充分.此外,由于转化过程中液相分子的挥发速度快(与氧载体间作用时间较短),而固相产物与氧载体的持续直接接触,可能是导致氧载体对固,液两相产物作用效果产生差异的主要原因. 图8 氧载体比例对生物质转化过程各相产物分布的影响 Fig. 8 Effect of oxygen carrier ratio on product distribution......
and content in copper oxygen bottom blowing bath smelting process WANG Qin-meng1, 2, GUO Xue-yi1, 2, LIAO Li-le1, 2, TIAN Qing-hua1, 2, ZHANG Yong-zhu1, 2 (1. School of Metallurgy and Environment, Central...;Schematic diagram of oxygen bottom blowing bath smelting furnace 根据配料比例,不同成分的铜精矿混合配料后,不经过磨细,干燥或制粒,直接搭配一定量的石英砂熔剂,经传送皮带连续地加入到炉内,氧化反应和造 渣反应激烈地进行,并通过间歇式放渣,放铜锍,使熔炼过程连续进行.入炉混合料成分如表1所列. 氧气和空气通过炉体底部氧枪连续送入炉内的铜锍层,富氧浓......
[Cu]都可以对w(Cu)进行预测,后者的准确性较强,说明了铜锍品位和渣型对渣中Cu含量有较大影响. REFERENCES [1] 胡立琼, 李 栋. 氧气底吹熔炼炉的开发与应用[J]. 有色设备, 2011(1): 33-37. HU Li-qiong, LI Dong. Development and application of oxygen bottom blowing melting furnace[J]. Non-Ferrous Metallurgical Equipment, 2011(1): 33-37. [2] 梁帅表, 陈知若. 氧气底吹炼铜技术的应用与发展[J]. 有色冶金节能, 2013(2): 16-19. LIANG Shuai-biao, CHEN Zhi-ruo. Application and development of oxygen......
Trans. Nonferrous Met. Soc. China 25(2015) 510-519 Effect of preparation routes on activity of Ag-MnOx/C as electrocatalysts for oxygen reduction reaction in alkaline media Qiu-mei WU1, Jian-ming RUAN1, Zhong-cheng ZHOU1, Shang-bin SANG2 1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; 2. College of Chemistry and Chemical Engineering, Central South......