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 | |
| 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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