[1]谢世前,余江,陶红群,等.中温煅烧分离回收钒冶炼废渣硫酸铵与硫酸钠[J].深圳大学学报理工版,2017,34(No.6(551-660)):551-555.
 Xie Siqian,Yu Jiang,Tao Hongqun,et al.Separation and recovery of ammonium sulfate and sodium sulfate from vanadium smelting residues by medium temperature calcinations[J].Journal of Shenzhen University Science and Engineering,2017,34(No.6(551-660)):551-555.
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中温煅烧分离回收钒冶炼废渣硫酸铵与硫酸钠()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第34卷
期数:
2017年No.6(551-660)
页码:
551-555
栏目:
材料科学
出版日期:
2017-11-30

文章信息/Info

Title:
Separation and recovery of ammonium sulfate and sodium sulfate from vanadium smelting residues by medium temperature calcinations
作者:
谢世前12余江12陶红群3冉宗信12王亚婷3郭 欣3彭炜东12
1)四川大学建筑与环境学院,四川成都 610065;2) 四川大学新能源与低碳技术研究院, 四川成都 610065; 3) 成都市环境保护科学研究院,四川成都610072
Author(s):
Xie Siqian12 Yu Jiang12 Tao Hongqun3 Ran Zongxin12 Wang Yating3 Guo Xin3 and Peng Weidong12
1) College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan Province, P.R.China 2) Institute of New Energy and Low Carbon Technology, Sichuan University, Chengdu 610065, Sichuan Province, P.R.China 3) Chengdu Environmental Protection Science Research Institute, Chengdu 610072, Sichuan Province, P.R.China
关键词:
化学分离工程硫酸钠硫酸铵尾矿废渣中温煅烧资源回收
Keywords:
chemical separation engineeringsodium sulfateammonium sulfatetailings waste residuemedium temperature calcinationresource recovery
文献标志码:
A
摘要:
以攀枝花炼钢厂沉钒废渣(提取钒后冶炼废渣)为原料,采用预处理、中温煅烧和回收硫酸钠硫酸铵处理工艺,探讨原料水分及颗粒大小、煅烧温度、煅烧时间以及搅拌次数等对硫酸钠和硫酸铵混合结晶物产品纯度及有效回收率的影响. 通过正交试验,确定了比较理想的分离回收工艺条件为:干燥温度120 ℃,干燥时间1 h,干燥后原料中水分可由18.9%降至5%;煅烧温度为400 ℃,煅烧时间3 h,搅拌3次. 分离所得硫酸钠和硫酸铵的纯度分别可达到90.56%和94.41%,有效回收率分别为91.31%和21.51%. 通过此方法分离产物硫酸铵与硫酸钠可用作生产原料,实现固废资源化,避免环境污染.
Abstract:
Taking the waste residue after extraction of vanadium that from Panzhihua Steel and Iron Mill as raw materials, then using a series of technics process and methods including pretreatment, medium temperature calcination and recovery of sodium sulfate ammonium sulfate in order to explore the effects of material moisture content, particle size, calcination temperature, calcination time and stirring number on product purity and recovery efficiency of sodium sulfate and ammonium sulfate mixed crystal. In the experiment, the ideal separation recycling process conditions was obtained by the orthogonal test. Under the optimal drying process parameters were the drying temperature of 120 ℃, drying time of 1h, the moisture in the raw material could reduce from 18.9% to 5%. Moreover, under the optimal calcination process parameters were calcination temperature of 400 ℃, calcination time of 3 h, stir of 3 times, the purity of segregate sodium sulfate and segregate ammonium sulfate could reach 90.56%, 94.41%, respectively; and the recovery efficiency of the both got to 91.31%, 21.51%, respectively. The segregate sodium sulfate and segregate ammonium sulfate that using this method produced can be used as raw materials. This process not only can achieve solid waste recycling, but also avoid environmental pollution.
更新日期/Last Update: 2017-10-10