粗四氯化钛有机物精制除钒尾渣提钒技术

doi:10.12034/j.issn.1009-606X.219195

过程工程学报 ›› 2019, Vol. 19 ›› Issue (S1): 93-98.DOI: 10.12034/j.issn.1009-606X.219195

• 绿色制造的全过程污染控制 • 上一篇下一篇

粗四氯化钛有机物精制除钒尾渣提钒技术

孙朝晖^1,2*，李明^1,2，高官金^1,2，李良^1,2

1. Pangang Group Research Institute Co., Ltd., Panzhihua, Sichuan 617000, China 2. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua, Sichuan 617000, China

收稿日期:2019-04-15 修回日期:2019-05-27 出版日期:2019-06-28 发布日期:2019-06-10
通讯作者: 孙朝晖 zhsunn@163.com

Vanadium extraction from vanadium removal tailings of crude titanium tetrachloride organic refining

Zhaohui SUN^1,2*, Ming LI^1,2, Guanjin GAO^1,2, Liang LI^1,2

1. 攀钢集团攀枝花钢铁研究院有限公司，四川攀枝花 617000 2. 钒钛资源综合利用国家重点实验室，四川攀枝花 617000

Received:2019-04-15 Revised:2019-05-27 Online:2019-06-28 Published:2019-06-10

摘要/Abstract

摘要： 从四氯化钛有机物精制除钒尾渣中提钒并制备V2O5产品，研究了精制除钒尾渣焙烧温度、浸出剂加入量、液固比、浸出温度、浸出时间对尾渣中钒转化和溶出率的影响。结果表明，焙烧温度大于600℃时，可高效脱除精制除钒尾渣中的碳和氯(?0.1%)，且低价钒被氧化为高价，钒主要以V2O5形式存在。对焙烧后的尾渣以Na2CO3水溶液为浸出剂，液固比6 mL/g及80℃下浸出60 min，钒浸出率为85.5%，浸出液仅含少量Si, Al, Ti杂质，以NH4+:V=2.5:1(摩尔比)直接加铵盐沉钒，得到NH4VO3，经干燥、煅烧制得V2O5产品，可满足99级粉钒指标要求，全流程钒收率为75%。

关键词: 四氯化钛, 精制除钒, 有机物, 五氧化二钒

Abstract: In the process of preparing titanium tetrachloride by chlorination technology, vanadium oxychloride and titanium tetrachloride will be extracted and condensed at the same time. Because of the close boiling point, aluminum powder or organic substance is used to remove vanadium oxychloride from titanium tetrachloride in order to prepare titanium products such as sponge titanium, titanium dioxide and so on. The tailing produced by organic refining was a kind of high-quality raw material for vanadium extraction due to the high content of V2O5 (20wt%), and the impurity element is relatively few. In view of the extraction of vanadium from the tailing obtained by organic refining of titanium tetrachloride and the preparation of vanadium pentoxide product, the roasting temperature, the amount of leaching agent, the ratio of liquid to solid and the leaching temperature were studied. Furthermore, the effect of leaching time on the conversion rate and dissolution rate of vanadium in the tailing were studied respectively. The results showed that when calcination temperature was higher than 600℃, carbon and chlorine could be removed efficiently (<0.1%). Vanadium mainly existed in the form of vanadium pentoxide in the slag after roasting. The roasted slag was leached with sodium carbonate aqueous solution, the ratio of liquid to solid was 6 mL/g, the leaching rate of vanadium was 85.5% at 80℃ for 60 min. The leaching solution contained only a small amount of Si, Al, Ti, P impurities, which was suitable to precipitate vanadium product directly. Ammonium metavanadate was prepared by addition of ammonium salt with NH4+:V=2.5:1 (molar ratio), and stirring at room temperature for 120 min, after filtering, washing, drying and calcining to obtain vanadium pentoxide. The chemical composition of vanadium pentoxide can fully meet the requirement of grade 99 powder vanadium. The vanadium yield of the whole process was 75%.

Key words: TiCl4, refined vanadium removal, Organic compound, V2O5

孙朝晖李明高官金李良. 粗四氯化钛有机物精制除钒尾渣提钒技术[J]. 过程工程学报, 2019, 19(S1): 93-98.

Zhaohui SUN Ming LI Guanjin GAO Liang LI. Vanadium extraction from vanadium removal tailings of crude titanium tetrachloride organic refining[J]. Chin. J. Process Eng., 2019, 19(S1): 93-98.

参考文献

[1] Rajab V. R. Vanadium market in the world [J]. Steel World, 2007, 13(2): 19-22.
[2] 孙朝晖.钒新技术及钒产业发展前景分析 [J]. 钢铁钒钛, 2012, 33(01): 1-7.
Sun Z-H, Analysis on New Vanadium Technologies and Prospects of Vanadium Industry [J]. Iron steel vanadium titanium, 2012, 33(1): 1-7.
[3] 孙朝晖.钒产业发展之我见 [J]. 矿产综合利用, 2008, 6: 40-44.
Sun Z-H. Review on the Development of Vanadium Industry [J]. Multipurpose Utilization of Mineral Resource, 2008, 6: 40-44.
[4] Li H, Fang H, Wang K, Zhou W, Yang Z, Yan X, Ge W, Li Q, Xie B. Asynchronous extraction of vanadium and chromium from vanadium slag by stepwise sodium roasting–water leaching[J]. Hydrometallurgy, 2015, 156: 124-135.
[5] Mahdavian A, Shafyei A, Alamdari K A, Haghshenas D F. Recovery of Vanadium from Esfahan steel company steel slag; optimizing of roasting and leaching parameters [J]. International journal of ISSI, 2006, 3(2): 17-21.
[6] 周丽. 高含钒粗四氯化钛有机物预处理除钒工艺研究 [J].钢铁钒钛, 2017, 38(04): 24-28.
Zhou L., Study on the organics pretreatment of crude titanium tetrachloride with high content of vanadium for vanadium removal [J]. Iron steel vanadium titanium,2017, 38(4): 24-28
[7] 李良, 周丽, 李冬勤, 杜明, 龙盘忠, 陆平. TiCl4精制尾渣的回收利用研究 [J]. 钢铁钒钛, 2016, 37(05): 76-79.
Li L, Zhou L, Li D-Q, Du M, Long P-Z, Lu P. Study on the Recycle Technology of the Slag from Refinin Process of TiCl4 [J]. Iron steel vanadium titanium, 2016, 37(5): 16-21.
[8] 于静, 章平, 陈天祥, 杨吉盼. 粗四氯化钛有机物除钒工艺研究 [J]. 贵州工业大学学报(自然科学版), 2008, 37(02): 29-32.
Yu J, Zhang P, Chen T X, Yang J P. Technical study of removing vanadium from raw titanium tetrachloride by organics, Journal of guizhou university of technology, 2008, 37(02): 29-32.
[9] 王学文, 张力萍, 肖连生, 张贵清, 袁继维, 龚仕成. 粗TiCl4铜丝塔除钒废水沉淀泥浆综合回收工艺 [J]. 中国有色金属学报, 2008, 18: 422-427.
Wang X-W, Zhang L-P, Xiao L-S, Zhang G-Q, Yuan J-W, Gong S-C, Comprehensive recovery of precipitate of wastewater in removing vanadium from raw TiCl4 with copper-wire [J]. The chinese journal of nonferrous metals, 2008, 18(1): 422-427.
[10] 孙莹, 王宁, 袁继维, 田元江. 李惠文. 海绵钛生产中铜丝除钒废弃物的回收实验与分析 [J]. 矿物学报, 2009, 29(1): 124-128.
Sun Y., Wang N., Yuan J-W, Tian Y-J, Li H-W, Recycle experiment and analysis of the waste brought in the process of removing vanadium by copper wires in titianium sponge’s production [J]. 2009, 29(1): 124-128.
[11] 刘邦煜, 王宁, 袁继维, 黄迎超, 陈娟, 田元江. 四氯化钛精制除钒废弃物的综合利用[J]. 化工环保, 2009, 29(1): 58-61.
Liu B-Y, Wang N, Yuan J-W, Huang Y-C, Chen J, Tian Y-J. Comprehensive utilization of waste in titanium tetrachloride refining [J]. Environmental protection of chemical industry, 2009, 29: 58-61.
[12] 柳云龙, 桂劲松. 四氯化钛精制车间氯化物泥浆提钒新工艺 [J]. 钛工业进展, 2013, 30(3): 36-39.
Liu Y-L, Gui J-S. A new technology of vanadium extraction from chloride Mud in the TiCl4 refining workshop [J]. Titanium, 2013, 30(3): 36-39.
[13] Aarabi-Karasgani M, , Rashchi F, Mostou? N, Vahidi E. Leaching of vanadium from LD converter slag using sulfuric acid [J]. Hydrometallurgy,
2010, 102: 14-21.
[14] He D S, Feng Q M, Zhang G F, Ou L M, Lu Y P. An environmentally-friendly technology of vanadium extraction from stone coal, Minerals Engineering [J]. 2007, 20: 1184–1186.
[15] 刘新运, 戴子林, 郝文彬, 危青, 郭秋松, 朱军. 红钒碱溶法制备高纯V2O5的研究 [J]. 中国质量与标准导报, 2014, 4(8): 65-67.
Liu X, Dai Z, Hao W, Wei Q, Gou Q, Zhu J. Preparation of high purity V2O5 by alkali dissolution of red cake [J]. China Quality and Standards Review, 2014, 4: 65-67.

粗四氯化钛有机物精制除钒尾渣提钒技术

Vanadium extraction from vanadium removal tailings of crude titanium tetrachloride organic refining

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 9

编辑推荐

Metrics

[1]	李燕郭昌进丁磊. 磁性离子交换树脂强化水源中有机物去除性能研究[J]. 过程工程学报, 2022, 22(4): 542-551.
[2]	朱小芳李庆张盈房志刚郑诗礼孙沛夏阳. 热化学还原法制备金属钛的技术研究进展[J]. 过程工程学报, 2019, 19(3): 456-464.
[3]	常远郑家乐都林李松庚宋文立. 流化床用树脂基球形活性炭及其VOCs吸附性能[J]. 过程工程学报, 2018, 18(5): 1112-1118.
[4]	仇明华刘万强刘凤萍陈冠凡岳明. 用分子结构有限元分析方法估算多类芳烃的液体导热率[J]. 过程工程学报, 2018, 18(1): 196-201.
[5]	王安仁陈立平张庆春. V2O5制备VN的还原氮化机理[J]. , 2013, 13(4): 704-709.
[6]	肖勇刘振宇邢新艳王建成郭彦霞黄张根. V2O5/AC催化剂吸附NH3及其选择性还原脱硝活性[J]. , 2008, 8(3): 460-465.
[7]	徐聪;袁章福;王晓强. 用于四氯化钛生产的复合式气力输送反应器的一维模拟---II. 反应器性质的计算结果[J]. , 2005, 5(1): 18-22.
[8]	徐聪;袁章福;肖文明. 用于四氯化钛生产的复合式气力输送反应器的一维模拟—I. 数学模型[J]. , 2004, 4(6): 481-489.
[9]	邹晓勇;彭清静;欧阳玉祝;田仁国. 高硅低钙钒矿的钙化焙烧过程[J]. , 2001, 1(2): 0-0.