Please wait a minute...
J4  2010, Vol. 44 Issue (6): 1138-1142    DOI: 10.3785/j.issn.1008-973X.2010.06.016
能源工程     
含钒灰渣酸浸提钒工艺酸浸条件的试验研究
徐耀兵, 施正伦, 骆仲泱, 王勤辉, 余德麒, 岑可法
浙江大学 能源清洁利用国家重点实验室,浙江 杭州 310027
Experiments on acid leaching conditions for extracting vanadium from ash containing vanadium
XU Yao-bing, SHI Zheng-lun1, LUO Zhong-yang, WANG Qin-hui, YU De-qi, CEN Ke-fa
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
 全文: PDF  HTML
摘要:

含钒灰渣中钒的酸浸效率直接影响了整个提钒工艺中钒的总回收率,同时,酸浸条件对钒的酸浸效率有着显著的影响作用.为获取含钒灰渣酸浸提钒工艺酸浸阶段的工艺条件,及含钒灰渣的酸浸特性,在对灰渣中钒的赋存状态进行全面分析的基础上,针对硫酸浓度、酸浸温度、酸浸时间和液固比等酸浸影响因素,在实验室分别进行了酸浸条件试验研究;分析酸浸液、酸浸残渣的成分,计算得到V2O5酸浸效率.试验结果表明:酸浸温度和硫酸浓度对酸浸效率起主要影响作用.合理工艺条件为:硫酸浓度为5.0~6.0 mol/L,酸浸温度为115~120 ℃,酸浸时间为6 h左右,液固比为2.5∶1~3∶1.在此条件下,V2O5酸浸效率达到85 %以上.

Abstract:

Leaching efficiency of vanadium in ash directly affects on the vanadium totally recovery rate of the vanadium extraction process, and operation conditions of leaching process have obviously effect on the leaching efficiency. In order to obtain the optimal operation conditions for extracting vanadium from ash containing vanadium by acid leaching and obtain acid leaching characteristics of the ash, based on the comprehensive analysis for vanadium occurrence in ash, experiments were conducted with different concentrations of sulfuric, leaching temperature, leaching time and ratio of solvent/HL which affected the leaching efficiency. Composition of solution and residua were analyzed, and the vanadium pentoxide leaching efficiency was calculated. The results showed that the sulfuric concentration and the leaching temperature have obvious influence on the leaching efficiency. The optimal operation conditions are as followed: the sulfuric concentration is 5.0-6.0 mol/L, the leaching temperature is 115-120 ℃, the leaching time is about 6 h, and the ratio of solvent/HL is 2.5∶13∶1. Under the optimal operation conditions, the leaching efficiency is over 85%.

出版日期: 2010-07-16
:  TQ 135.11  
通讯作者: 施正伦,男,研究员.     E-mail: szl@cmee.zju.edu.cn
作者简介: 徐耀兵(1978—),男,河南许昌人,博士生,从事循环流化床燃烧技术、石煤提钒技术等方面的研究. E-mail:xyb970117@zju.edu.cn
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  

引用本文:

徐耀兵, 施正伦, 骆仲泱, 王勤辉, 余德麒, 岑可法. 含钒灰渣酸浸提钒工艺酸浸条件的试验研究[J]. J4, 2010, 44(6): 1138-1142.

XU Yao-Bing, SHI Zheng-Lun, JIA Zhong-Yang, WANG Qi-Hui, TU De-Qi, CEN Ge-Fa. Experiments on acid leaching conditions for extracting vanadium from ash containing vanadium. J4, 2010, 44(6): 1138-1142.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.06.016        http://www.zjujournals.com/eng/CN/Y2010/V44/I6/1138

[1] 宾智勇.石煤提钒研究进展与五氧化二钒的市场状况[J].湖南有色金属,2006,19(2): 1620.

BIN Zhiyong. Progress of the research on extraction of vanadium pentoxide from stone coal and the market of the V2O5 [J]. Hunan Nonferrous Metals,2006, 19(2) :1620.

[2] MOSKALYK R R, ALFANTAZI A M. Processing of vanadium: a review [J]. Minerals Engineering, 2003, 56(16): 793805.

[3] FATHI H. A short history of hydrometallurgy [J]. Hydrometallurgy, 2005, 65(79): 1522.

[4] 邹晓勇,欧阳玉祝,彭清静,等.含钒石煤无盐焙烧酸浸生产五氧化二钒工艺的研究[J].化学世界,2001,20(3): 117120.

ZOU Xiaoyong, OUYANG Yuzhu, PENG Qingjing. Study on the process of producing vanadium pentoxide from bone coal vanadium mine by nosalt roasting and acid leach ing[J].Chemical World,2001, 20(3): 117120.

[5] 许国镇.石煤中钒的价态及物质组成对提钒工艺的指导作用[J].煤炭加工与综合利用,1989,22(5): 58.

XU Guoshen. Guidance of vanadium valence and component of stone coal for extracting vanadium [J]. Process and Synthetic Utilization of Coal, 1989, 22(5): 58.

[6]  BALAZ P. Mechanical activation in hydrometallurgy [J]. Int J Miner Process,2003, 68(72): 341354.

[7] 李洪桂,郑清远,张启修,等.湿法冶金学[M].长沙:中南大学出版社,2002: 2181.

[8] 《有色金属提取冶金手册》编委会.有色金属提取冶金手册·稀有高熔点金属[M].北京:冶金工业出版社,2002: 3645.

[9] 何东升,冯其明,张国范.碱法从石煤中浸出钒试验研究[J].有色金属(冶炼部分),2007,26(4): 1517.

HE Dongheng, FENG Qiming, ZHANG Guofan. The study on leaching vanadium from stone coal with alkali [J]. Nonferrous Metal, 2007, 26(4): 1517.

[10] 向小艳,王明玉,肖连生.石煤酸浸提钒工艺研究[J].稀有金属与硬质合金,2007,19(9): 1013.

XIANG Xiaoyan, WANG Mingyu, XIAO Liansheng. Study on acid leaching of vanadium from stone coal [J]. Rare Metal and Cemented Carbide, 2007,19(9): 1013.

No related articles found!