摘要
本文采用等温热重法研究了混合气体(H_2+CO)还原氧化铅的速率过程。实验结果表明氧化铅的还原过程主要受界面反应控制,其表观活化能为108.25kJ/mol。当温度低于510℃时,混合气体(40%H_2+60%CO)的还原速率均比氢气或一氧化碳的还原速率快,这显示了混合气体低温还原氧化铅的优势。
In this paper the isothermal thermogravimetry was employed for in- vestigating the rate process of reduction of lead oxide with (H_2+CO) mixtures. The experimental results showed that the reduction process of lead oxide was essentially controlled by interfacial chemical reaction which apparent activation energy was 108.25 kJ/mol. When the temperature was below 510℃, the reduction rate of(40%H_2+60%CO)mixture was faster than both that of hydrogen and that of carbon monoxide, which implied advantages of lead ...
出处
《有色金属》
CSCD
1992年第1期73-76,14,共5页
Nonferrous Metals
关键词
氧化铅
还原动力学
混合气体
Lead oxide
Kinetics of reduction
Gas mixture
