钨矿与硫磷混合酸的压力分解浸出动力学

IF 2.5 3区 材料科学 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Jigang He, Yiwei Luo, Tao Lu, Zhenqiang Wang, Xingyu Chen, Ailiang Chen, Xuheng Liu, Jiangtao Li, Lihua He, Fenglong Sun, Zhongwei Zhao
{"title":"钨矿与硫磷混合酸的压力分解浸出动力学","authors":"Jigang He, Yiwei Luo, Tao Lu, Zhenqiang Wang, Xingyu Chen, Ailiang Chen, Xuheng Liu, Jiangtao Li, Lihua He, Fenglong Sun, Zhongwei Zhao","doi":"10.1007/s40831-024-00899-y","DOIUrl":null,"url":null,"abstract":"<p>To further improve the decomposition efficiency of wolframite in sulfuric-phosphoric mixed acid, the leaching kinetics in pressurized system was studied. The effects of stirring rate, reaction temperature, sulfuric acid concentration, phosphoric acid concentration, and mineral particle size on the leaching process were investigated, and the data could be fitted by the Avrami equation with a fitting degree of 0.9824. When the stirring rate exceeds 500 r/min, the liquid phase mass transfer was relatively sufficient, and the apparent activation energy of the reaction was 41.98 kJ/mol, which indicated chemical reaction control. And the reaction characteristic parameter was 0.44, the influence index of mineral particle size was − 1.78, and the reaction order of sulfuric acid concentration and phosphoric acid concentration were 0.4 and 0.31, respectively. The kinetics equation of the pressure sulfuric-phosphoric acid decomposition wolframite was obtained. It provided a theoretical basis for the strengthening of practical decomposition of wolframite.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\n","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"7 1","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Leaching Kinetics of the Pressure Decomposition of Wolframite with Sulfuric-Phosphoric Mixed Acid\",\"authors\":\"Jigang He, Yiwei Luo, Tao Lu, Zhenqiang Wang, Xingyu Chen, Ailiang Chen, Xuheng Liu, Jiangtao Li, Lihua He, Fenglong Sun, Zhongwei Zhao\",\"doi\":\"10.1007/s40831-024-00899-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>To further improve the decomposition efficiency of wolframite in sulfuric-phosphoric mixed acid, the leaching kinetics in pressurized system was studied. The effects of stirring rate, reaction temperature, sulfuric acid concentration, phosphoric acid concentration, and mineral particle size on the leaching process were investigated, and the data could be fitted by the Avrami equation with a fitting degree of 0.9824. When the stirring rate exceeds 500 r/min, the liquid phase mass transfer was relatively sufficient, and the apparent activation energy of the reaction was 41.98 kJ/mol, which indicated chemical reaction control. And the reaction characteristic parameter was 0.44, the influence index of mineral particle size was − 1.78, and the reaction order of sulfuric acid concentration and phosphoric acid concentration were 0.4 and 0.31, respectively. The kinetics equation of the pressure sulfuric-phosphoric acid decomposition wolframite was obtained. It provided a theoretical basis for the strengthening of practical decomposition of wolframite.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical Abstract</h3>\\n\",\"PeriodicalId\":17160,\"journal\":{\"name\":\"Journal of Sustainable Metallurgy\",\"volume\":\"7 1\",\"pages\":\"\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-08-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sustainable Metallurgy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s40831-024-00899-y\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sustainable Metallurgy","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s40831-024-00899-y","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

为了进一步提高黑钨矿在硫磷混合酸中的分解效率,研究了加压系统中的浸出动力学。研究了搅拌速率、反应温度、硫酸浓度、磷酸浓度和矿物粒度对浸出过程的影响,数据可用阿夫拉米方程拟合,拟合度为 0.9824。当搅拌速率超过 500 r/min 时,液相传质相对充分,反应的表观活化能为 41.98 kJ/mol,表明化学反应受控。反应特征参数为 0.44,矿物粒度的影响指数为-1.78,硫酸浓度和磷酸浓度的反应阶数分别为 0.4 和 0.31。得到了压力硫酸-磷酸分解黑钨矿的动力学方程。为加强黑钨矿的实际分解提供了理论依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Leaching Kinetics of the Pressure Decomposition of Wolframite with Sulfuric-Phosphoric Mixed Acid

Leaching Kinetics of the Pressure Decomposition of Wolframite with Sulfuric-Phosphoric Mixed Acid

To further improve the decomposition efficiency of wolframite in sulfuric-phosphoric mixed acid, the leaching kinetics in pressurized system was studied. The effects of stirring rate, reaction temperature, sulfuric acid concentration, phosphoric acid concentration, and mineral particle size on the leaching process were investigated, and the data could be fitted by the Avrami equation with a fitting degree of 0.9824. When the stirring rate exceeds 500 r/min, the liquid phase mass transfer was relatively sufficient, and the apparent activation energy of the reaction was 41.98 kJ/mol, which indicated chemical reaction control. And the reaction characteristic parameter was 0.44, the influence index of mineral particle size was − 1.78, and the reaction order of sulfuric acid concentration and phosphoric acid concentration were 0.4 and 0.31, respectively. The kinetics equation of the pressure sulfuric-phosphoric acid decomposition wolframite was obtained. It provided a theoretical basis for the strengthening of practical decomposition of wolframite.

Graphical Abstract

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
Journal of Sustainable Metallurgy
Journal of Sustainable Metallurgy Materials Science-Metals and Alloys
CiteScore
4.00
自引率
12.50%
发文量
151
期刊介绍: Journal of Sustainable Metallurgy is dedicated to presenting metallurgical processes and related research aimed at improving the sustainability of metal-producing industries, with a particular emphasis on materials recovery, reuse, and recycling. Its editorial scope encompasses new techniques, as well as optimization of existing processes, including utilization, treatment, and management of metallurgically generated residues. Articles on non-technical barriers and drivers that can affect sustainability will also be considered.
×
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