研究金属铜在柠檬酸和过氧化氢中溶解动力学的转盘法

IF 4.8 2区 材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING
Mahmoud Motasim , Salih Aydoğan , Babiker Ali , Tevfik Agacayak
{"title":"研究金属铜在柠檬酸和过氧化氢中溶解动力学的转盘法","authors":"Mahmoud Motasim ,&nbsp;Salih Aydoğan ,&nbsp;Babiker Ali ,&nbsp;Tevfik Agacayak","doi":"10.1016/j.hydromet.2024.106281","DOIUrl":null,"url":null,"abstract":"<div><p>This study reports the kinetics of copper metal dissolution in citric acid-hydrogen peroxide solution using the rotating disc method. The effect of the concentration of citric acid as well as hydrogen peroxide, stirring speed, disc surface area, and temperature was investigated. The concentration of hydrogen peroxide (0.25–1.5 mol/L) has a strong effect on the dissolution rate (mg/min) of copper with a reaction order of 0.92, compared to a reaction order of 0.42 with respect to the concentration of citric acid (0.125–1.5 mol/L). The reaction rate is directly proportional to the disc area (<em>A</em>) and square root of the disc rotation speed (<em>ω</em><sup><em>1/2</em></sup>), as expected from the Levich equation. The activation energy of 33 kJ/mol, in the temperature range 30-60 °C is also comparable with the values reported in previous studies.</p></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":"225 ","pages":"Article 106281"},"PeriodicalIF":4.8000,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Rotating disc method to study the dissolution kinetics of copper metal in citric acid and hydrogen peroxide\",\"authors\":\"Mahmoud Motasim ,&nbsp;Salih Aydoğan ,&nbsp;Babiker Ali ,&nbsp;Tevfik Agacayak\",\"doi\":\"10.1016/j.hydromet.2024.106281\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study reports the kinetics of copper metal dissolution in citric acid-hydrogen peroxide solution using the rotating disc method. The effect of the concentration of citric acid as well as hydrogen peroxide, stirring speed, disc surface area, and temperature was investigated. The concentration of hydrogen peroxide (0.25–1.5 mol/L) has a strong effect on the dissolution rate (mg/min) of copper with a reaction order of 0.92, compared to a reaction order of 0.42 with respect to the concentration of citric acid (0.125–1.5 mol/L). The reaction rate is directly proportional to the disc area (<em>A</em>) and square root of the disc rotation speed (<em>ω</em><sup><em>1/2</em></sup>), as expected from the Levich equation. The activation energy of 33 kJ/mol, in the temperature range 30-60 °C is also comparable with the values reported in previous studies.</p></div>\",\"PeriodicalId\":13193,\"journal\":{\"name\":\"Hydrometallurgy\",\"volume\":\"225 \",\"pages\":\"Article 106281\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2024-02-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Hydrometallurgy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0304386X24000215\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Hydrometallurgy","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304386X24000215","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0

摘要

本研究采用旋转圆盘法研究了金属铜在柠檬酸-过氧化氢溶液中的溶解动力学。研究了柠檬酸和过氧化氢的浓度、搅拌速度、圆盘表面积和温度的影响。双氧水浓度(0.25-1.5 摩尔/升)对铜的溶解速率(毫克/分钟)有很大影响,反应阶数为 0.92,而柠檬酸浓度(0.125-1.5 摩尔/升)的反应阶数为 0.42。反应速率与圆盘面积(A)和圆盘转速的平方根(ω1/2)成正比,正如列维奇方程所预期的那样。在 30-60 °C 的温度范围内,活化能为 33 kJ/mol,与之前研究报告的数值相当。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Rotating disc method to study the dissolution kinetics of copper metal in citric acid and hydrogen peroxide

This study reports the kinetics of copper metal dissolution in citric acid-hydrogen peroxide solution using the rotating disc method. The effect of the concentration of citric acid as well as hydrogen peroxide, stirring speed, disc surface area, and temperature was investigated. The concentration of hydrogen peroxide (0.25–1.5 mol/L) has a strong effect on the dissolution rate (mg/min) of copper with a reaction order of 0.92, compared to a reaction order of 0.42 with respect to the concentration of citric acid (0.125–1.5 mol/L). The reaction rate is directly proportional to the disc area (A) and square root of the disc rotation speed (ω1/2), as expected from the Levich equation. The activation energy of 33 kJ/mol, in the temperature range 30-60 °C is also comparable with the values reported in previous studies.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Hydrometallurgy
Hydrometallurgy 工程技术-冶金工程
CiteScore
9.50
自引率
6.40%
发文量
144
审稿时长
3.4 months
期刊介绍: Hydrometallurgy aims to compile studies on novel processes, process design, chemistry, modelling, control, economics and interfaces between unit operations, and to provide a forum for discussions on case histories and operational difficulties. Topics covered include: leaching of metal values by chemical reagents or bacterial action at ambient or elevated pressures and temperatures; separation of solids from leach liquors; removal of impurities and recovery of metal values by precipitation, ion exchange, solvent extraction, gaseous reduction, cementation, electro-winning and electro-refining; pre-treatment of ores by roasting or chemical treatments such as halogenation or reduction; recycling of reagents and treatment of effluents.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信