废钒系催化剂回收利用技术路径分析及选择  

Analysis and selection of technical paths for recycling and utilization of waste vanadium catalysts

作　　者：赵备备 李兰杰 祁健 马瑞峰 王海龙 赵亮 Zhao Beibei;Li Lanjie;Qi Jian;Ma Ruifeng;Wang Hailong;Zhao Liang(Chengde Vanadium Titanium New Material Co.,Ltd.,Chengde 067102,Hebei,China;Hebei Vanadium Titanium Industrial Technology Research Institute,Chengde 067102,Hebei,China;Hebei Key Laboratory of Vanadium Titanium New Materials,Chengde 067102,Hebei,China;HBIS Group Materials Technology Research Institute,Shijiangzhuang 050023,Hebei,China)

机构地区：[1]承德钒钛新材料有限公司,河北承德067102 [2]河北省钒钛产业技术研究院,河北承德067102 [3]河北省钒钛新材料重点实验室,河北承德067102 [4]河钢材料技术研究院,河北石家庄050023

出　　处：《钢铁钒钛》2024年第2期85-93,共9页Iron Steel Vanadium Titanium

基　　金：河北省自然科学基金资助项目(B2022318001);承德国家可持续发展议程创新示范区建设科技专项(202008F026)。

摘　　要：在推进制造业绿色化发展过程中,废钒系催化剂的综合回收利用有着广阔的发展前景,是实现钒产业循环经济的迫切需求,探究低污染、低能耗、短流程、高效益、全回收、适于大规模运用的新工艺是废钒系催化剂回收利用技术的发展方向。通过分析现有废钒触媒和废钒钛系脱硝催化剂回收利用的主要方法、原理、途径及优缺点,可知目前研究工作的重点还是在降低工艺成本、简化工艺流程的前提下尽可能减少二次污染的产生,并进一步提高金属回收效率。机械预处理、先进的氧化工艺和选择性浸出等新技术值得进一步研究。基于承钢公司现有提钒钛工艺与设备,对废钒触媒和废钒钛系脱硝催化剂回收利用钒、钛等有价金属元素进行研究,并结合环保政策及建设成本等因素,提出了适宜的废钒系催化剂回收利用技术路线。In order to promote the green development of manufacturing industry,the comprehensive recycling and utilization of waste vanadium catalysts has broad prospects,and is an urgent need to realize the circular economy of vanadium industry.Exploring a new process with low pollution,low energy consumption,short process,high efficiency,full recovery and suitable for large-scale application is the development direction of waste vanadium catalyst recycling and utilization.By analyzing the main methods,principles,approaches and advantages and disadvantages of the existing waste vanadium catalysts and waste vanadium titanium denitrification catalysts,it can be seen that the current research focus is to reduce the secondary pollution as much as possible and further improve the metal recovery efficiency under the premise of reducing the process cost and simplifying the process flow.New technologies such as mechanical pretreatment,advanced oxidation process and selective leaching are worthy of further study.Based on the existing technology and equipment of vanadium and titanium extraction in Cheng Iron and Steel Company,the recovery and utilization of valuable metal elements such as vanadium and titanium were studied in the waste vanadium catalyst and vanadium and titanium denitrification catalyst,and the appropriate technical route of recovery and utilization of vanadium and titanium catalysts was proposed in combination with environmental protection policy and construction cost.

关 键 词：钒触媒 SCR脱硝催化剂 提钒 钠化焙烧 碱浸 五氧化二钒 

分 类 号：TF841.3[冶金工程—有色金属冶金] X757[环境科学与工程—环境工程]