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University, Changsha 410083, China)Abstract:The oxidizing roasting of carbon ferrochrome in the presence of potassium carbonate and air was investigated. The effects of reaction temperature, reaction time...%. Therefore, it can be easily recovered to produce sponge iron, realizing zero-emission of chromium residue.Key words:carbon ferrochrome; potassium chromate; two-stage roasting; chromium residue; zero......
(2015)03-0765-09 Comparative research on microstructure of high-carbon ferrochrome powders decarburized in solid-state by microwave field and conventional field WANG Chao, CHEN Jin, LIN Wanming, SUN... of the material was studied, which provided evidence for special effects of microwave heating field. The high-carbon ferrochrome powders (HCFP) with addition of calcium carbonate powders (CCP) was studied......
; 文献标志码:A Comparative research on solid state decarburization kinetics of high-carbon ferrochrome powder by microwave heating and conventional heating LI Xiao-guang1, CHEN Jin1, HAO... Technology Group Company, Beijing 100016, China) Abstract: Taking the high-carbon ferrochrome powder containing calcium carbonate as the research object, the kinetics behavior and activation energy of solid......
Assessment of Reusing Ferrochrome Slag Wastes in Mortar as SCMsI?IL Sanr? Karap?nar,HASAN BiricikFaculty of Engineering and Natural Sciences, Department of Civil Engineering, Maltepe University摘 要... emission.Additionally,there is economic potential for the construction industry to reuse wastes as supplementary building materials.The purpose of this study is to evaluate the potential of utilizing ferrochrome slag......
Trans. Nonferrous Met. Soc. China 25(2015) 966-972 Preparation of potassium chromate by roasting of carbon ferrochrome Guo-rong HU, Jia-liang WANG, Zhong-dong PENG, Ke DU, Wei-gang WANG, Qing-lai... ferrochrome to prepare potassium chromate in the presence of potassium carbonate and air was investigated. The effects of reaction temperature, reaction time, mole ratio of potassium carbonate to carbon......
Trans. Nonferrous Met. Soc. China 25(2015) 3820-3826 Novel method to prepare sodium chromate from carbon ferrochrome Jia-liang WANG, Guo-rong HU, Zhong-dong PENG, Ke DU School of Metallurgy and Environment, Central South University, Changsha 410083, China Received 12 January 2015; accepted 19 May 2015 Abstract: An oxidizing roasting process of carbon ferrochrome to prepare sodium chromate......
, or simply M7C3, is generally the primary carbide phase in the high-carbon ferrochrome [39,40]. Based on this figure, a temperature of higher than 1400 °C is required to completely melt the alloy at a Cr/Fe.... Microstructural characterization of high-carbon ferrochrome [J]. Materials Characterization, 1996, 36: 349-356. [41] HU X, TENG L, WANG H, OKVIST L S, YANG Q, BJORKMAN B, SEETHARAMAN S. Carbothermic......
PREPARATION OF MESOPOROUS CARBON BY CARBON DIOXIDE ACTIVATION WITH CATALYST W.Z.Shen1,J.T.Zheng1,A.H.Lu1 (1.Institute of Coal Chemistry, The Chinese Academy of Sciences, Taiyuan 030001, China) Abstract:A mesoporous activated carbon (AC) can be successfully prepared by catalytic activa-tion with carbon dioxide. For iron oxide as catalyst, there were two regions of mesoporesize distribution......
Quantitative Analysis on Carbon Migration in Double-Glow Discharge Plasma Surface Alloying Process WANG Cong-zeng1,ZHANG Zhen-xia2,ZHANG Wen-quan1,SU Xue-kuan1 (1.College of Materials Science and Engineering, Beijing University of Technology, Beijing, China;2.Institution of Electronics, Chinese Academy of Sciences, Beijing, China) 摘要:Carbon migration is of great significance in double-glow......
Microstructure transformation of carbon nanofibers during graphitization ZHANG Yong(张 勇)1, TANG Yuan-hong(唐元洪)1, 2, LIN Liang-wu(林良武)1, ZHANG En-lei(张恩磊)1 1. College of Materials Science...: The microstructures of vapor-grown carbon nanofibers(CNFs) before and after graphitization process were analyzed by high resolution transmission electron microscopy(HRTEM), Raman spectroscopy, X-ray diffractometry(XRD......
