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Decomposition Kinetics of Titania Slag in Eutectic NaOH-NaNO3 System

文献类型：期刊论文

作者Wang, Dong1,2; Wang, Zhi1,2; Qi, Tao1,2; Wang, Lina1,2; Xue, Tianyan1,2
刊名METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
出版日期2016-02-01
卷号47期号:1页码:666-674
ISSN号1073-5615
英文摘要The decomposition kinetics and mechanism of titania slag in eutectic NaOH-NaNO3 system were studied in the temperature range 623 K to 723 K (350 A degrees C to 450 A degrees C). Decomposed products were examined using X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy. It has been identified that the main product is Na2TiO3 and the decomposition kinetics of titania slag followed a shrinking unreacted core model. It is proposed that the chemical reaction process was the rate determining step with apparent activation energy of 62.4 kJ/mol. NaNO3 was mainly acted as oxygen carrier and mass transport agent to lower the viscosity of the system. The purity of TiO2 obtained in the product was up to 99.3 pct. A flow diagram to produce TiO2 and to recycle the media was proposed.
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]PANZHIHUA ILMENITE ; SODIUM-HYDROXIDE ; ACID
收录类别SCI
语种英语
WOS记录号WOS:000368692300058
源URL[http://ir.ipe.ac.cn/handle/122111/20595]  
专题过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, 1 Bei Er Jie, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Dong,Wang, Zhi,Qi, Tao,et al. Decomposition Kinetics of Titania Slag in Eutectic NaOH-NaNO3 System[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2016,47(1):666-674.
APA Wang, Dong,Wang, Zhi,Qi, Tao,Wang, Lina,&Xue, Tianyan.(2016).Decomposition Kinetics of Titania Slag in Eutectic NaOH-NaNO3 System.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,47(1),666-674.
MLA Wang, Dong,et al."Decomposition Kinetics of Titania Slag in Eutectic NaOH-NaNO3 System".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 47.1(2016):666-674.

入库方式： OAI收割

来源：过程工程研究所

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