钒铝合金主要作为制作钛合金、高温合金的中间合金及某些特殊合金的添加剂,五氧化二钒是制备钒铝合金的重要原料.在实验室条件下,通过返溶除硅、碱性沉钒工艺制备的五氧化二钒符合钒铝合金原料的要求,纯度达到了99.5％,Si、Cr、Fe均小于0.05％.工业试验工艺稳定,五氧化二钒的纯度达到99.5％,杂质含量小于0.05％.确定的适宜工艺参数为:除硅剂A与硅摩尔比为1.05、除硅反应pH值为10.0,除硅反应温度为70℃、除硅反应时间为60 min、沉钒反应沉钒剂与钒摩尔比为3.1、沉钒反应温度为60℃、沉钒反应时间为60 min.
Vanadium-aluminum alloy is primarily used as additive in production of titanium alloy,superalloy and some special alloys,and vanadium pentoxide is an important raw material for the preparation of vanadium-aluminum alloy.Under laboratory conditions,vanadium pentoxide meeting the requirements for vanadium-aluminum alloy preparation was obtained by re-dissolution for silicon removal and alkaline precipitation of vanadium,with the purity of V2O5 reaching 99.5％ and the content of Si,Cr and Fe less than 0.05 ％.After the industrial test,the purity of vanadium pentoxide reached 99.5 ％ and the content of impurities was less than 0.05％ with stable process.The optimum parameters are as follows:the molar ratio of desilication agent to silicon is 1.05,the pH for desilication is 10.0,the temperature and time for desilication are respectively 70℃ and 60 min; The molar ratio of precipitating agent to vanadium is 3.1,the temperature and time for precipitating reaction are 60 ℃ and 60 min,respectively.
参考文献
| [1] | 朱崇兵,金保升,李锋,仲兆平,翟俊霞,陈玲霞.蜂窝状V2O5-WO3/TiO2催化剂脱硝性能研究[J].中国电机工程学报,2007(29):45-50. |
| [2] | 陈海军.两步法制备钒铝合金试验研究[J].钢铁钒钛,2012(06):11-15. |
| [3] | 吴雄伟,彭穗,冯必钧,山村朝雄,矢野贵,佐藤伊佐務,刘素琴,黄可龙.钒电解液的绿色制备及其热力学分析[J].无机材料学报,2011(05):535-539. |
| [4] | 高峰 .一种从含钒液体中提取五氧化二钒的方法[P].中国:200710034640.4,2008-10-01. |
| [5] | 贾绍才 .高钒除杂制备高纯度五氧化二钒工艺[P].中国:200710035986.6,2008-05-21. |
| [6] | 韩忠民 .一种五氧化二钒的生产方法[P].中国:90105129.2,1991-12-11. |
| [7] | 韩忠民 .精五氧化二钒的生产方法[P].中国:90105130.6,1991-12-11. |
| [8] | 宿素满 .一种五氧化二钒的生产方法[P].中国:200610046484.9,1991-12-11. |
| [9] | 廖世明;柏谈论.国外钒冶金[M].北京:冶金工业出版社,1985:61-62. |
| [10] | 刘颖 .新型絮凝剂聚合硅酸除硅剂A形态学及絮凝机理的研究[D].重庆:重庆大学,2012. |
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