钼粉的制备方法及研究进展  被引量:3

Preparation Methods and Research Progress of Molybdenum Powders

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作  者:张瑞华 郝振华[1,2] 车玉思 舒永春[1,2] 孙院军 何季麟 Zhang Ruihua;Hao Zhenhua;Che Yusi;Shu Yongchun;Sun Yuanjun;He Jilin(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;Henan Province Industrial Technology Research Institute of Resources and Materials,Zhengzhou University,Zhengzhou 450001,China;School of Materials Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区:[1]郑州大学材料科学与工程学院,河南郑州450001 [2]郑州大学河南省资源与材料工业技术研究院,河南郑州450001 [3]西安交通大学材料科学与工程学院,陕西西安710049

出  处:《稀有金属》2022年第4期510-522,共13页Chinese Journal of Rare Metals

基  金:中国博士后基金面上项目(2020M672270);国家自然科学基金项目(51804277);中国工程科技发展战略河南研究院重大咨询项目(201903ZDA01);河南省自然科学基金项目(202300410425);郑州市协同创新重大专项项目(XKZDJC201903)资助。

摘  要:钼粉的制备方法直接影响着钼粉的质量和性能,进而影响着钼制品的质量,因此钼粉的制备方法一直是钼冶金领域的研究重点。本文在查阅大量文献的基础上综述了各种制备钼粉的方法,并按照制备原理和技术的不同将这些方法归纳为还原法、分解法以及等离子技术。介绍了氢还原法制备钼粉的现状、不足以及改进方法;介绍了碳还原法、金属还原法在制备钼粉方面各自的优势和不足之处;列举了3种热分解法在制备钼粉方面的应用;简述了等离子技术在制备球形钼粉和超细钼粉方面的现状和技术特点。这些研究工作将拓宽相关研究人员对钼粉制备方法的研究思路,一方面要在传统钼冶金领域对钼粉制备技术进行改进优化;另一方面要结合科技的发展在钼粉应用的新兴领域对钼粉的制备技术进行推陈出新。最后本文对钼粉制备方法的研究发展趋势进行了分析和展望。Molybdenum powders are mainly used in preparing molybdenum metal materials and molybdenum alloy materials by powder metallurgy technology,electrical and electronic fields and some chemical engineering fields.The quality of molybdenum powders directly affects the quality of molybdenum products and molybdenum alloys.The quality of molybdenum powders is closely related to the preparation technology.Molybdenum powders preparation technology has always been the focus of molybdenum metallurgy industry.The research progress of molybdenum powders preparation technology was reviewed by consulting a large number of literatures and references.According to different preparation principles and processes of molybdenum powders,the existing preparation methods of molybdenum powders were classified into three categories:reduction method,decomposition method and induction plasma spheroidization technology.(1)Reduction method:according to different reducing agents,the reduction methods to prepare molybdenum powders were subdivided into hydrogen reduction method,metal reduction method and carbon reduction method.Hydrogen reduction was the most common method to prepare molybdenum powders in industry.This method mainly used molybdenum oxide as raw material to prepare molybdenum powders through one-stage reduction method,two-stage reduction method and three-stage reduction method.The one-stage reduction process was not complicated,but the purity of molybdenum powders was low and the quality of molybdenum powders was poor.Molybdenum powders prepared by two-stage reduction had good quality and fine particle size,which was the most frequently-used method in industry.Three-stage reduction was further deoxidization at higher temperature to prepare some special molybdenum powders.In addition,by adjusting the mechanism in the reduction process of molybdenum powders,the purpose of controlling the particle size of molybdenum powders could be achieved,and it could provide ideas for industrialized large-scale preparation of nano molybdenum powder

关 键 词:钼粉 超细钼粉 球形钼粉 还原法 分解法 等离子球化 

分 类 号:TG146.4[一般工业技术—材料科学与工程]

 

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