CAS OpenIR  > 研究所(批量导入)
铬酸钠氢还原反应动力学
尤海侠; 徐红彬; 张懿; 李佐虎; 郑诗礼; 白玉兰
2009
Source Publication化工学报
Issue03Pages:649-653
Other AbstractThe environmental problem resulting from the traditional production process of chromic oxide has spawned public concerns all over the world.Integrated in the clean production technology of chromium compounds with sub-molten salt media,the preparation process of chromic oxide through hydrogen reduction of alkali metal chromate salt enables the clean and short-route preparation of chromic oxide.Moreover,the alkali metal hydroxide byproducts can be recycled as reaction media inside the process.To explore the reaction kinetics and mechanisms of the hydrogen reduction process,the reduction of sodium chromate in H2 atmosphere was investigated by using TGA and DSC techniques.The isothermal TGA measurement results showed that in the temperature range from 703 K to 773 K,the hydrogen reduction had only one step of mass loss and the mass loss rate was from 5.91% to 6.36%.The main products of the reaction were NaCrO2 and NaOH,as confirmed by XRD patterns of the reduction products.The non-isothermal TGA measurements of hydrogen reduction was investigated at six different temperature rising rates of 1,5,10,15,20 and 30 K·min-1.According to the Doyle-Ozawa and Kissinger methods,the activation energy was 342.47 kJ·mol-1 and the order of reduction reaction was 0.87.The results in this work will help to enhance the reaction efficiency and optimize the process flow.
Keyword铬酸钠 氢还原 动力学
Indexed ByCSCD
CSCD IDCSCD:3517232
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/10676
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
尤海侠,徐红彬,张懿,等. 铬酸钠氢还原反应动力学[J]. 化工学报,2009(03):649-653.
APA 尤海侠,徐红彬,张懿,李佐虎,郑诗礼,&白玉兰.(2009).铬酸钠氢还原反应动力学.化工学报(03),649-653.
MLA 尤海侠,et al."铬酸钠氢还原反应动力学".化工学报 .03(2009):649-653.
Files in This Item:
File Name/Size DocType Version Access License
铬酸钠氢还原反应动力学_尤海侠.pdf(574KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[尤海侠]'s Articles
[徐红彬]'s Articles
[张懿]'s Articles
Baidu academic
Similar articles in Baidu academic
[尤海侠]'s Articles
[徐红彬]'s Articles
[张懿]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[尤海侠]'s Articles
[徐红彬]'s Articles
[张懿]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.