稀有金属（英文版）,
2010, 29(3): 280-285.
doi: 10.1007/s12598-010-0049-8
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1.School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Be
2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
3.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
4.School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
5.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
6.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
基金项目:
the National Basic Research Program of China(2007CB613501)
the Knowledge Innovation Program of the Chinese Academy of Sciences(KGCX2-YW-214)
the National Key Technologies R&D Program(2006BAC02A05)
the Special Funds of "Mountain Tai Scholar" Construction Project and BHP Billiton LTD
Effect of atmosphere on the synthesis of potassium titanate
LI Jie
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, WANG Yong
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, WANG Lina
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, SUN Tichang
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, QI Tao
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, ZHANG Yi
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1.School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Be
2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
3.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
4.School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
5.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
6.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Keywords：
potassium titanate
Potassium titanate (K4Ti3O8) was synthesized by the reaction between ilmenite and concentrated KOH solution in the atmosphere of nitrogen,still air, and oxygen, respectively. The obtained samples were systematically investigated by X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometer (ICP-OES), and scanning electron microscopy (SEM). XRD results indicate that K4Ti3O8 have been synthesized in different atmospheres. The oxidizing atmosphere could enhance the conversion rate of Ti from ilmenite to K4Ti3O8, and Fe(Ⅱ) is easily oxidized to trivalent iron Fe(Ⅲ) during the reaction. Furthermore, SEM images show that the different atmospheres have significant effect on K4Ti3O8 crystal morphology and particle size. Well shaped K4Ti3O8 crystals are obtained in nonoxidizing atmosphere.
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