Thermal decomposition of lead acetate trihydrate in air atmosphere

doi:10.16085/j.issn.1000-6613.2015.09.025

Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (09): 3370-3373.DOI: 10.16085/j.issn.1000-6613.2015.09.025

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Thermal decomposition of lead acetate trihydrate in air atmosphere

WANG Haifeng¹, ZHANG Wei¹, SUN Xiaojuan¹, HU Yuchen¹, YU Wenhao¹, YUAN Xiqing¹, DONG Jinxin¹, ZHOU Feng², LI Ruixia², LI Fuyuan², YANG Jiakuan¹

1. College of Environmental Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, Hubei, China;
2. Hubei Jinyang metallurgical Co., Ltd., Xiangyang 441700, Hubei, China

Received:2014-12-31 Revised:2015-01-21 Online:2015-09-05 Published:2015-09-05

三水合乙酸铅在空气气氛下的热分解特性

汪海峰¹, 张伟¹, 孙晓娟¹, 胡雨辰¹, 喻文昊¹, 袁喜庆¹, 董金鑫¹, 周峰², 李瑞霞², 李富元², 杨家宽¹

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

通讯作者: 杨家宽,教授,博士生导师,主要研究方向为固废资源化与材料回收。E-mail:jkyang@mail.hust.edu.cn
作者简介:汪海峰(1995-),男,本科生。
基金资助:
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)及国家科技支撑计划(2014BAC03B02)项目。

Abstract

Abstract: 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.

Key words: TG-DTA, TG-FTIR, lead acetate trihydrate, air atmosphere

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。

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

CLC Number:

O614.43⁺3

WANG Haifeng, ZHANG Wei, SUN Xiaojuan, HU Yuchen, YU Wenhao, YUAN Xiqing, DONG Jinxin, ZHOU Feng, LI Ruixia, LI Fuyuan, YANG Jiakuan. Thermal decomposition of lead acetate trihydrate in air atmosphere[J]. Chemical Industry and Engineering Progree, 2015, 34(09): 3370-3373.

汪海峰, 张伟, 孙晓娟, 胡雨辰, 喻文昊, 袁喜庆, 董金鑫, 周峰, 李瑞霞, 李富元, 杨家宽. 三水合乙酸铅在空气气氛下的热分解特性[J]. 化工进展, 2015, 34(09): 3370-3373.

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Thermal decomposition of lead acetate trihydrate in air atmosphere

三水合乙酸铅在空气气氛下的热分解特性

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