中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Kinetics of hydrothermal oxidation of granular Pb metal to PbO powder in sodium hydroxide solutions

文献类型:期刊论文

作者Yamasaki, N; Lan, X; Feng, Q
刊名METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
出版日期1997-02-01
卷号28期号:1页码:33-37
ISSN号1073-5615
其他题名Metall. Mater. Trans. B-Proc. Metall. Mater. Proc. Sci.
中文摘要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.
英文摘要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.
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]Materials Science ; Metallurgy & Metallurgical Engineering
收录类别SCI
原文出处://WOS:A1997WJ16800004
语种英语
WOS记录号WOS:A1997WJ16800004
公开日期2013-11-15
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/5976]  
专题过程工程研究所_研究所(批量导入)
作者单位CHINESE ACAD SCI, INST CHEM MET, BEIJING, PEOPLES R CHINA
推荐引用方式
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.

入库方式: OAI收割

来源:过程工程研究所

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