期刊文献+

有机酸下失活脱硝催化剂钒浸出率的正交实验优化研究 被引量:3

Orthogonal experimental optimization of vanadium leaching rate from deactivated DeNO x catalyst by organic acid
下载PDF
导出
摘要 在室温与加热条件下,采用有机酸浸出失活脱硝催化剂粉体中的钒,考察浸出剂浓度、反应温度、反应时间、液固比对钒浸出率的影响。结果表明,室温和加热条件下,草酸对钒的浸出率均大于醋酸;在草酸浓度为0.6 mol/L,反应温度120℃,反应时间90 min和液固比13∶1 mL/g时,钒的浸出率为73.7%。有机酸浸出未改变失活脱硝催化剂载体TiO_(2)的晶型结构,并且比表面积有所增加,浸出渣仍可作为制备脱硝催化剂的原材料使用。 The leaching rate of vanadium from deactivated DeNO x catalyst powder was studied by organic acid at room temperature and heating.The effects of leaching conditions(leaching agent concentration,reaction temperature,reaction time and liquid-solid ratio)on the leaching rate of vanadium.The results show that the leaching rate of vanadium by oxalic acid is greater than that by acetic acid at room temperature and heating conditions;when the concentration of oxalic acid was 0.6 mol/L,the reaction temperature was 120℃,the reaction time was 90 min and the liquid-solid ratio was 13∶1 mL/g,the leaching rate of vanadium was 73.7%.Organic acid leaching does not change the crystal structure of TiO_(2),the carrier of inactivated DeNO_(x) catalyst,and the specific surface area increases.The leaching residue can still be used as the raw material for the preparation of DeNO_(x) catalyst.
作者 安家康 王露珠 邓立锋 张涛 任保增 李扬 AN Jia-kang;WANG Lu-zhu;DENG Li-feng;ZHANG Tao;REN Bao-zeng;LI Yang(Chemical Engineering Institute,Zhengzhou University,Zhengzhou 450001,China;Longking-Coalogix Environmental Protection Technology(Shanghai)Co.,Ltd.,Shanghai 201106,China;Jiangsu Longking-Coalogix Environmental Protection Technology Co.,Ltd.,Yancheng 224000,China)
出处 《应用化工》 CAS CSCD 北大核心 2022年第6期1555-1558,共4页 Applied Chemical Industry
基金 国家自然科学基金(U1707603) 2018年江苏省科技成果转化专项资金项目(BA2018104)。
关键词 脱硝催化剂 有机酸 钒浸出率 正交实验 DeNO x catalyst organic acid vanadium leaching rate orthogonal experiment
  • 相关文献

参考文献11

二级参考文献113

共引文献68

同被引文献40

引证文献3

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部