弱氧化剂CO2(g)对含钒铁水吹炼制钒渣的影响

doi:10.12034/j.issn.1009-606X.219149

摘要/Abstract

摘要： 采用弱氧化剂选择性氧化含钒铁水，先弱氧化脱硅，再强氧化提钒，以获得高品位的钒渣。对弱氧化剂CO2浅度氧化含钒铁水炼制钒渣进行了理论分析，确定脱硅保钒反应的物理化学条件，研究了温度、CO2气体流量、搅拌和熔剂等因素对脱硅保钒反应的影响及脱硅反应产物的分布。结果表明，温度1450℃及CO2气体流量1 L/min、有搅拌条件下，脱硅率高达68.62%，而钒氧化率仅为0.73%。

关键词: 钒渣, 含钒铁水, 脱硅, 弱氧化剂, 选择性氧化

Abstract: 75%?85% of vanadium products in the world are produced from the vanadium?titanium magnetite, in vanadium-titanium magnetite, Fe, V and Ti are distributed in the isomorphism phase, which cannot be enriched and separated by physical methods. Usually, the vanadium slag and the semi-steel are obtained by the oxygen blowing process in the steel making process. The semi-steel is used to produce steel, and the vanadium slag is the raw material for extracting vanadium. When vanadium slag is obtained by blowing vanadium-bearing molten iron with oxygen, the impurities such as Ca, Mg, Al, Ti and Si in the molten iron enter into slag phase along with V, oxygen as a strong oxidizer. Both vanadium oxide and impurity oxides are contained in the vanadium slag, resulting in high impurity content and low vanadium grade, which make the subsequent vanadium extraction process costly, that is the drawback of the current vanadium slag process. Weak oxidizer CO2(g) was used in this research to produce the low-silicon and high-vanadium slag by selective oxidation, during which Si was removed into slag firstly and then V left in the molten iron by weak oxidation. Theoretical analysis was firstly performed and then the effects of temperature, flow rate of CO2(g), stirring and smelt agent on the desilication process were investigated. The results showed that the desilication rate reached 68.62%, and the oxidation rate of vanadium was only 0.73% when the desilication process was performed with stirring and CO2(g) flow rate of 1 L/min at 1450℃.

Key words: Vanadium slag, vanadium-bearing molten iron, desilication, weak oxidizer CO2(g), selective oxidation

隋智通娄太平霍守星. 弱氧化剂CO₂(g)对含钒铁水吹炼制钒渣的影响[J]. 过程工程学报, 2019, 19(S1): 45-50.

Zhitong SUI Taiping LOU Shouxing HUO. Effect of weak oxidizer CO₂(g) on the vanadium slag production from the vanadium-bearing molten iron[J]. Chin. J. Process Eng., 2019, 19(S1): 45-50.

参考文献

[1]Fu Z B.Development process and trends of vanadium extraction from vanadium-titanium magnetite ore [J]. China Nonferrous Metallurgy, 2011(6): 2933.[J].China Nonferrous Metallurgy, 2011, 1(6):2933-2938
[2]付自碧.钒钛磁铁矿提钒工艺发展历程及趋势 [J]. 中国有色冶金，2011(6)：2933.[J].中国有色冶金, 2011, 1(6):2933-2938
[3]张生芹.钒渣体系物化性能及相平衡的研究 [D]. 重庆：重庆大学，2012.
[4]Zhang S Q.Research on Physicochemical Properties and Phase Equilibrium of Vanadium Slag [D]. Chongqing: Chongqing University, 2012.
[5]张生芹，任正德，邓能运，等.SiO2对钒渣粘度的影响预测 [C]//2012年全国冶金物理化学学术会议论文集，北京，2012：170174.
[6]黄正华.高硅铁水转炉提钒对钒渣质量的影响及对策[J].四川化工, 2010, 13(6):3540-3547
[7]Huang Z H.The effect of high silicon molten iron used in converter V-recovering on the quality of vanadium slag and the countermeasure[J].Sichuan Chemical Engineering, 2010, 13(6):3540-3547
[8]高剑辉.转炉提钒工艺对钒渣质量的影响 [J]. 金属世界，2008(4)：13.[J].金属世界, 2008, 1(4):13-17
[9]Gao J H.The effect of vanadium extraction by converter process on the quality of vanadium slag [J]. Metal World, 2008(4):13.[J].Metal world, 2008, 1(4):13-17
[10]陈东辉，杨树德.钒渣化学形成理论研究 [J]. 河北冶金，1993(5)：3139.[J].Hebei Metallurgy, 1993, 1(5):3139-3144
[11]弱还原.低品位难选综合选别与利用技术，《产业关键共性技术发展指南（2017）》印发含174项技术2017年10月18日，http://www.360doc.com/content/17/1224/17/51292016 7159044901.shtml[J].产业关键技术指南, 2017, 1(1):168-174
[12]隋智通等.含钒硅铁水制备低硅钛型钒渣的方法 [P]. 专利号201710363475.0.
[13]霍首星，隋智通，娄文博，等.含钒硅铁水CO2脱硅保钒实验研究 [J]，材料与冶金学报，2016，15(3)：166170.[J].材料与冶金学报, 2016, 15(2):166-170
[14]Huo S X, Sui Z T, Lou W B.Study on removal of silicon and keeping vanadium in hot metal containing vanadium and silicon with carbon dioxide injection[J].Journal of Materials and Metallurgy, 2016, 15(3):166-170
[15]黄希祜.钢铁冶金原理(第3版) [M]. 北京：冶金工业出版社，2002：46440.
[16]Ono H, Miki T, Hasegawa M.Chapter 3.8–examples of steelmaking thermochemistry [J]. Treatise on Process Metallurgy Process Fundamentals, 2014: 617639.[J].Treatise on Process Metallurgy Process Fundamentals, 2014, 1(1):617-639
[17]林洁，王新华，周荣章，等.含钒铁水预脱硅时硅与钒的分离 [J]. 钢铁，1989(6)：1419.[J].钢铁, 1989, 1(6):14-19
[18]张景宜.含钒铁水炼钢应用研究[J].河南冶金, 2013, 21(3):12-14
[19]Zhang J Y.Research of smelting hot metal containing vanadium[J].Henan Metallurgy, 2013, 21(3):12-14
[20]甄小鹏.转炉提钒过程中碳、钒氧化的热力学和宏观动力学研究 [D]. 重庆：重庆大学，2012.
[21]Zhen Q P.Thermodynamic and Macro-kinetic Studies on Oxidations of Carbon and Vanadium during Vanadium Extraction by Converter [D]. Chongqing: Chongqing University, 2012.
[22]梁英教，车荫昌.无机物热力学数据手册 [M]. 沈阳：东北大学出版社，1994，449485.
[23]孙迪.含钒铁水钛、钒氧化的热力学分析 [D]. 包头：内蒙古科技大学，2014.
[24]Werme A, Astrom C.Recovery of vanadium from melt iron-thermodynamics and injection applications[J].Scandinavian Journal of Metallurgy, 1986, 15(6):273-278
[25]李丹柯.含钒铁水钒氧化动力学研究 [D]. 重庆：重庆大学，2009.
[26]Li D K.Study on Oxidation Kinetics of Vanadium in Vanadium Recovery from Hot Metal Containing Vanadium [D]. Chongqing: Chongqing University, 2009.
[27]刘文权.低碳炼铁:钢铁业发展低碳经济的重点 [N]，世界金属导报，2010年5月11日.
[28]朱荣，毕秀荣，吕明.在炼钢工艺的应用及发展[J].钢铁, 2012, 47(3):15-19
[29]Zhu R, Bi X R, Lv M.Application and Development of Carbon Dioxide in the Steelmaking Process[J].Iron & Steel, 2012, 47(3):15-19
[30]魏寿昆著.冶金过程热力学 [M]. 上海：上海科学技术出版社，1980.
[31]车荫昌编著.冶金热力学 [M]. 东北工学院，1989.
[32]张廷安等.氧气底吹造锍过程中气泡冶金行为的水模实验研究. [C]//第十五届冶金反应工程学会议论文集. 2011：651656.
[33]Hornby-Anderson S, Douglas C L, Bermel C L.Use of CO2 in the AOD [C]//The 48th Electric Furnace Conference Proceedings. 1990: 297304.
[34]文光远.含钒钛铁水的预处理[J].重庆大学学报, 1999, 22(2):113-120
[35]Wen G Y.Pretreatment of the Hot Iron Containing Vanadium and Titanium[J].Journal of Chongqing University, 1999, 22(2):113-120

弱氧化剂CO₂(g)对含钒铁水吹炼制钒渣的影响

Effect of weak oxidizer CO₂(g) on the vanadium slag production from the vanadium-bearing molten iron

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	王新东李兰杰杜浩赵备备. 亚熔盐高效提钒铬清洁生产技术产业化应用[J]. 过程工程学报, 2020, 20(6): 667-677.
[2]	陈小娜何丹丹陈志鹏刘立成. 生物柴油副产物粗甘油催化氧化脱水制备丙烯酸[J]. 过程工程学报, 2019, 19(S1): 123-128.
[3]	李雅婧南琳琳贺滨刘瑞霞廖丹葵. Ti/Zr助剂掺杂VPO催化正丁烷选择性氧化制顺酐[J]. 过程工程学报, 2018, 18(6): 1293-1301.
[4]	罗富怀付念新张林刘武汉涂赣峰 . 钒渣钙化焙烧熟料的浸出过程[J]. 过程工程学报, 2018, 18(3): 600-604.
[5]	张菊花严哲锋张力. 钙化提钒溶液沉钒的影响因素及沉钒动力学[J]. 过程工程学报, 2018, 18(1): 111-117.
[6]	耿立唐李兰杰赵备备白瑞国. 钒化工流程高效提取钒元素[J]. 过程工程学报, 2017, 17(4): 744-750.
[7]	付念新张林刘武汉涂赣峰隋智通. 钒渣添加石灰石氧化焙烧过程物相转化行为[J]. 过程工程学报, 2017, 17(2): 285-291.
[8]	阳亚玲颜文斌高峰. 离子交换树脂分离钒渣浸出液中钒与铬 [J]. 过程工程学报, 2017, 17(1): 84-91.
[9]	孟利鹏王少娜杜浩郑诗礼. 钒渣焙烧-碱浸提钒工艺焙烧过程机理[J]. 过程工程学报, 2016, 16(3): 445-451.
[10]	李洋洋马淑花王建宇王晓辉郑诗礼. 粉煤灰预脱硅液动态水热合成硅酸钙晶须的影响因素[J]. 过程工程学报, 2016, 16(1): 156-163.
[11]	贺山明王吉坤汪金良黎阳干磊熊辉辉. 硅酸锌加压硫酸浸出的热力学分析与实验研究[J]. , 2014, 14(6): 930-936.
[12]	刘继鑫李兰杰郑诗礼王少娜杜浩谢海云. 钒渣焙烧-水热碱浸提钒[J]. , 2014, 14(5): 763-769.
[13]	李磊张仁杰廖彬谢晓峰. 砷锑烟尘中砷与锑的选择性氧化分离[J]. , 2014, 14(1): 71-77.
[14]	范鹤林陈登福徐松龙木军龙海军. 高钙钒比钒渣钠化焙烧熟料浸出条件研究[J]. , 2013, 13(6): 958-963.
[15]	吴江王雨薛天艳曲景奎刘然潘春跃孙小龙. 氧氯化锆生产中转型料酸解与絮凝脱硅过程[J]. , 2013, 13(6): 986-991.