全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
化工学报  2014 

煅烧-碱浸法从钒铬还原渣中分离回收钒铬

DOI: 10.3969/j.issn.0438-1157.2014.03.026, PP. 948-953

Keywords: 钒铬还原渣,煅烧,浸取,回收

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过煅烧-碱浸法从钒铬还原渣中分离回收钒铬,考察了煅烧反应过程并探讨了煅烧-碱浸条件对浸出钒的影响。结果表明:煅烧过程中Cr(Ⅲ)和V(Ⅳ)反应生成中间产物CrVO4,随后CrVO4分解为Cr2O3和V2O5;相同浓度条件下,在V2O5浸出效果方面NaOH要优于Na2CO3,提高浸出介质浓度和延长浸出时间有利于V2O5的浸出,而浸出温度对V2O5浸出无明显影响,钒铬还原渣在850℃煅烧1.5h后经3mol·L-1NaOH在90℃浸出1.5h,滤渣中的Cr2O3质量分数高于96%,钒、铬的浸出率分别为87.3%和小于1%,另外,利用酸性铵盐法能够沉淀滤液中97%的钒。

References

[1]  Du Hegui(杜鹤桂). The Principle of Smelting Vanadium-Titanium Magnetite by Blast Furnace(高炉冶炼钒钛磁铁矿原理)[M]. Beijing: Science Press, 1996:2-5
[2]  Yu Shuqiu(于淑秋), Meng Xiangsheng(孟祥胜), Chen Jiayong(陈家镛). Separation and recovery of chromiun and vanadium by primary amine with extraction[J]. Chemical and Metallurgical(化工冶金), 1980, 2: 4-7
[3]  Wang X, Wang M, Shi L, Hu J, Qiao P. Recovery of vanadium during ammonium molybdate production using ion exchange[J]. Hydrometallurgy, 2010, 104(2): 317-321
[4]  Ning P, Cao H, Zhang Y. Stability of the interfacial crud produced during the extraction of vanadium and chromium[J]. Hydrometallurgy, 2013, 133: 156-160
[5]  Palmer C D, Wittbrodt P R. Processes affecting the remediation of chromium-contaminated sites[J]. Environmental Health Perspectives, 1991, 92: 25-31
[6]  Yang K, Zhang X, Tian X. Leaching of vanadium from chromium residue[J]. Hydrometallurgy, 2010, 103(1): 7-11
[7]  Moskalyk R R, Alfantazi A M. Processing of vanadium: a review[J]. Minerals Engineering, 2003, 16(9): 793-805.
[8]  Chen Liang(陈亮). Effects of pH and temperature on acidic ammonium salt precipitation of vanadate leaching solution[J].Chinese Journal of Rarementals (稀有金属), 2010, 34(6):924-929
[9]  Fan Y Y, Wang X W, Wang M Y. Separation and recovery of chromium and vanadium from vanadium-containing chromate solution by ion exchange[J]. Hydrometallurgy, 2013, 136: 31-35
[10]  Yang Kang(杨康), Tian Xueda(田学达), Yang Yonglong(杨用龙), Zhong Renhua(钟仁华), Chen Yanbo(陈燕波), Liu Hong(刘洪). Leaching of vanadium from vanadium-bearing chromium residues by alkaline process[J]. Mining and Metallurgical Engineering(矿冶工程), 2010, 30(3): 70-73
[11]  Yang Qiuliang(杨秋良), Chen Xibao(陈锡宝). The method of separation and recovery of vanadium and chromium from vanadium containing chromium waste water[P]: CN,200910061579.1. 2009-09-23
[12]  Zhang Yang(张洋), Xu Hongbin(徐红彬), Zhang Yi(张懿). The method of separation and recovery of vanadium and chromium from vanadium and chromium reduction precipitate[P]: CN,201110265111. 1. 2012-01-25
[13]  Guo Zhuang(郭壮). Study and application of chromium wastewater treatment by reduction and sedimentation[D]. Harbin: Harbin Industrial University, 2007: 21-24
[14]  Zhang B, Feng C, Ni J, Zhang J, Huang W. Simultaneous reduction of vanadium (Ⅴ) and chromium (Ⅵ) with enhanced energy recovery based on microbial fuel cell technology[J]. Journal of Power Sources, 2012, 204: 34-39
[15]  Ouyang Yuzhu(欧阳玉祝), Wang Jihui(王继徽). Treatment of vanadium-containing wastewater by iron filings microelectrolysis-coprecipitation process[J]. Chemical Environmental Protection(化工环保), 2002, 22(3): 165-168
[16]  Guan Hongliang(关洪亮), Cao Yanlan(操艳兰), Gu Yiya(顾逸雅), Li Caixia(李彩霞), Wang Xinglin(王杏林), He Dongsheng(何东升), Yu Xunmin(于训民). Precipitating treatment of vanadium contained waste water by using ferrous sulfate[J]. J. Wuhan Inst. Tech.(武汉工程大学学报), 2012, 34(12): 25-27
[17]  Zeng Xiaoming(曾小明), Li lingpu(李凌璞), Shu Hui(舒晖). Chemical treatment of highly concentrated vanadium-containing industrial wastewater[J]. Industrial Water Treatment(工业水处理), 2009, 27(7): 51-53
[18]  Yan Jiangfeng(阎江峰), Chen Jiaxi(陈加希), Hu Liang(胡亮). Chrome Metallurgy(铬冶金)[M]. Beijing: Metallurgical Industry Press, 2007: 121-126
[19]  Yang Shouzhi(杨守志). Vanadium Metallurgy(钒冶金)[M]. Beijing: Metallurgical Industry Press, 2010:69-72
[20]  Avena M J, Giacomelli C E, De Pauli C P. Formation of Cr(Ⅲ) hydroxides from chrome alum solutions: precipitation of active chromium hydroxide[J]. Journal of Colloid and Interface Science, 1996, 180(2): 428-435
[21]  Lei Xuefei(雷雪飞), Xue Xiangxin(薛向欣). Effect of acidity and acidic medium on photocatalytic reduction of Cr(Ⅵ) by sulfate modified titanium-bearing blast furnace slag[J]. Journal of Chemical Industry and Engineering (China)(化工学报), 2008, 59(9): 2247-2254

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133