Fe_(2)O_(3)/硅藻土催化剂催化甲苯二胺焦油重组分降解  

Degradation of Heavy Components in Toluene Diamine Tar over Fe_(2)O_(3)/Diatomite Catalyst

作　　者：卢主枫 李晓明 李红伟[2,3] 李贵贤 董鹏[2,3] 王伟 王东亮[1,3] Lu Zhufeng;Li Xiaoming;Li Hongwei;Li Guixian;Dong Peng;Wang Wei;Wang Dongliang(Gansu Yinguang Juyin Chemical Co.,Ltd.,Gansu,730900;School of Petrochemical Engineering,Lanzhou University of Technology,Gansu,730050;Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province,Gansu,730050)

机构地区：[1]甘肃银光聚银化工有限公司,甘肃730900 [2]兰州理工大学石油化工学院,甘肃730050 [3]甘肃省低碳能源化工重点实验室,甘肃730050

出　　处：《当代化工研究》2023年第22期170-172,共3页Modern Chemical Research

基　　金：甘肃省重点研发计划项目“基于相转移催化的TDI残渣资源化利用技术研究”(项目编号:20YF8FA062)。

摘　　要：非均相催化甲苯二胺(TDA)焦油重组分降解是资源化利用的新途径。本文采用离子交换-焙烧法制备了Fe_(2)O_(3)/硅藻土非均相Fenton催化,并通过SEM、XRD和EDS等手段对催化剂微观结构进行表征。探究了Fe_(2)O_(3)/硅藻土催化剂催化TDA焦油重组份降解的性能,结果表明:硅藻土对TDA焦油具有吸附优势,且Fe_(2)O_(3)能够均匀分散于硅藻土表面而实现对TDA焦油的可控高效降解。在1g 0.5%Fe催化剂,[m(Fe_(2)O_(3)/硅藻土催化剂):m(30%H_(2)O_(2))]=1:6,20℃,pH=4.5,反应时间2h条件下,焦油分解得到TDA最多,产率为71.79%。The degradation of TDA tar by heterogeneous catalytic was a new way of resource utilization.In this study,heterogeneous Fe_(2)O_(3)/Diatomite Fenton catalysis was prepared by ion exchange and roasting method,and the microstructure of the catalysts were characterized by SEM,XRD and EDS.The degradation performance of heavy components in toluene diamine tar catalyzed by Fe_(2)O_(3)/Diatomite catalyst was investigated.The experimental results showed that Diatomite owned the advantage of adsorption for TDA tar,and Fe_(2)O_(3)could be evenly dispersed on the surface of Diatomite to achieve efficient and controllable degradation of TDA tar.TDA was obtained under the conditions of 1 g 0.5%Fe catalyst,[m(Fe_(2)O_(3)/Diatomite catalyst):m(30%H_(2)O_(2))]=1:6,20℃,pH=4.5 and reaction time 2 h,and the yield was 71.79%.

关 键 词：甲苯二胺焦油 Fe_(2)O_(3)/硅藻土催化剂 重组分降解 非均相 

分 类 号：TQ31[化学工程—高聚物工业]