CAS OpenIR  > 研究所(批量导入)
Kinetics of hydrothermal oxidation of granular Pb metal to PbO powder in sodium hydroxide solutions
Alternative TitleMetall. Mater. Trans. B-Proc. Metall. Mater. Proc. Sci.
Yamasaki, N; Lan, X; Feng, Q
1997-02-01
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
ISSN1073-5615
Volume28Issue:1Pages:33-37
AbstractThe oxidation kinetics of granular Pb metal in sodium hydroxide solutions were investigated in an autoclave, under temperatures ranging from 110 degrees C to 175 degrees C, oxygen pressures of up to 3.0 MPa, Particle size fractions from 0.52 to 5 mm, and NaOH concentrations of up to 1.6 mol/L. In most instances, the 1 - 2/3 alpha - (1 - alpha)(2/3) vs time relationship, indicative of a diffusion-controlled reaction, was closely obeyed. The oxidation rate increased significantly with increasing temperature, and the apparent activation energy was found to be 29.6 kJ/mol. The oxidation process of lead metal can be improved evidently by using a stronger stirring method to decrease the product layer. The distribution of the various Pb complexes calculated from available thermodynamic data showed that the prominent component in alkaline solution was HPbO2- ion which determined the amount of Pb2+ available for the formation of PbO.; The oxidation kinetics of granular Pb metal in sodium hydroxide solutions were investigated in an autoclave, under temperatures ranging from 110 degrees C to 175 degrees C, oxygen pressures of up to 3.0 MPa, Particle size fractions from 0.52 to 5 mm, and NaOH concentrations of up to 1.6 mol/L. In most instances, the 1 - 2/3 alpha - (1 - alpha)(2/3) vs time relationship, indicative of a diffusion-controlled reaction, was closely obeyed. The oxidation rate increased significantly with increasing temperature, and the apparent activation energy was found to be 29.6 kJ/mol. The oxidation process of lead metal can be improved evidently by using a stronger stirring method to decrease the product layer. The distribution of the various Pb complexes calculated from available thermodynamic data showed that the prominent component in alkaline solution was HPbO2- ion which determined the amount of Pb2+ available for the formation of PbO.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:A1997WJ16800004
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5976
Collection研究所(批量导入)
AffiliationCHINESE ACAD SCI, INST CHEM MET, BEIJING, PEOPLES R CHINA
Recommended Citation
GB/T 7714
Yamasaki, N,Lan, X,Feng, Q. Kinetics of hydrothermal oxidation of granular Pb metal to PbO powder in sodium hydroxide solutions[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,1997,28(1):33-37.
APA Yamasaki, N,Lan, X,&Feng, Q.(1997).Kinetics of hydrothermal oxidation of granular Pb metal to PbO powder in sodium hydroxide solutions.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,28(1),33-37.
MLA Yamasaki, N,et al."Kinetics of hydrothermal oxidation of granular Pb metal to PbO powder in sodium hydroxide solutions".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 28.1(1997):33-37.
Files in This Item:
File Name/Size DocType Version Access License
Kinetics of hydrothe(227KB) 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
[Yamasaki, N]'s Articles
[Lan, X]'s Articles
[Feng, Q]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yamasaki, N]'s Articles
[Lan, X]'s Articles
[Feng, Q]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yamasaki, N]'s Articles
[Lan, X]'s Articles
[Feng, Q]'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.