三水合乙酸铅在空气气氛下的热分解特性  

Thermal decomposition of lead acetate trihydrate in air atmosphere

作　　者：汪海峰[1] 张伟[1] 孙晓娟[1] 胡雨辰[1] 喻文昊 袁喜庆[1] 董金鑫[1] 周峰 李瑞霞 李富元 杨家宽[1] 

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074 [2]湖北金洋冶金股份有限公司,湖北襄阳441700

出　　处：《化工进展》2015年第9期3370-3373,共4页Chemical Industry and Engineering Progress

基　　金：武汉市科技攻关计划(2013060501010168;2013011801010593;2014030709020313);华中科技大学自主创新基金(HUST;2013ZZGH015);国家科技支撑计划(2014BAC03B02)项目

摘　　要：通过热重分析技术(TG-DTA)和热重红外联用分析技术(TG-FTIR)等热分析技术研究三水合乙酸铅晶体在空气气氛条件下的热分解过程。其热分解过程中主要存在二氧化碳、丙酮和乙酸等中间产物。热解过程的关键转变温度为61.4℃、204.9℃、256.8℃、293.6℃、348.7℃。焙烧后铅粉的氧化度能够达到95%以上,视密度比传统球磨氧化铅粉低,吸水值高于传统的球磨氧化铅粉。研究结果对于三水合乙酸铅作为前体制备铅粉提供了参考依据。The thermal decomposition of lead acetate trihydrate was studied with FT-IR,TG-DTA and TG-FTIR measurements in an air atmosphere. Intermediate products,i.e. CO2,acetone and acetic acid, were generated in the decomposition procedure. The key conversion temperature of decomposition was determined as 61.4℃,204.9℃,256.8℃,293.6℃and 348.7℃. The oxidizability of leady oxides could reach above 95%,while the leady oxide was with a lower apparent density and a higher water-absorption value than traditional leady products. This study has experimentally supported the further preparation of leady oxide with lead acetate trihydrate as a precursor.

关 键 词：热重分析技术 热重红外联用分析技术 三水合乙酸铅 空气气氛 

分 类 号：O614.433[理学—无机化学]