磷钾伴生矿钾浸出机理及热力学研究

IF 1.3 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Yan Zhu, Liang Li, Quan Qi
{"title":"磷钾伴生矿钾浸出机理及热力学研究","authors":"Yan Zhu, Liang Li, Quan Qi","doi":"10.3233/mgc-210177","DOIUrl":null,"url":null,"abstract":"This paper has mainly focused on the technology of transforming potassium minerals from phosphate-potassium associated minerals into soluble potassium by acid hydrolysis, and discussed the leaching mechanism of potassium in the process of leaching. As it is shown from the research, in the acid leaching system, [H +] = 8.71 mol L–1, m NH4F:m phosphorushboxpotassiumassociatedore = 0.25, the leaching rate of potassium reaches 74% at 413 K for 2 h. And the release of potassium ion is the result of the interaction of “oxidation” and “ion exchange”. It was found from the Eh-pH diagram of K-(Si)-(P)-(F)-H2O system that, when P-F or Si-F appeared in K-H2O system, the K + stable region became narrow, and the excess fluorine was not conducive to the stability of K + in aqueous solution.","PeriodicalId":18027,"journal":{"name":"Main Group Chemistry","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study on the mechanism and thermodynamics of potassium leaching from phosphorus-potassium associated ore\",\"authors\":\"Yan Zhu, Liang Li, Quan Qi\",\"doi\":\"10.3233/mgc-210177\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper has mainly focused on the technology of transforming potassium minerals from phosphate-potassium associated minerals into soluble potassium by acid hydrolysis, and discussed the leaching mechanism of potassium in the process of leaching. As it is shown from the research, in the acid leaching system, [H +] = 8.71 mol L–1, m NH4F:m phosphorushboxpotassiumassociatedore = 0.25, the leaching rate of potassium reaches 74% at 413 K for 2 h. And the release of potassium ion is the result of the interaction of “oxidation” and “ion exchange”. It was found from the Eh-pH diagram of K-(Si)-(P)-(F)-H2O system that, when P-F or Si-F appeared in K-H2O system, the K + stable region became narrow, and the excess fluorine was not conducive to the stability of K + in aqueous solution.\",\"PeriodicalId\":18027,\"journal\":{\"name\":\"Main Group Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2022-04-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Main Group Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.3233/mgc-210177\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Main Group Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.3233/mgc-210177","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

本文主要研究了磷酸钾伴生矿物中钾矿物酸水解转化为可溶性钾的工艺,并探讨了钾在浸出过程中的浸出机理。研究表明,在酸浸体系中,[H +] = 8.71 mol L-1, m NH4F:m phospushbox钾关联矿= 0.25,在413 K条件下,2 H钾的浸出率可达74%。而钾离子的释放是“氧化”和“离子交换”相互作用的结果。从K-(Si)-(P)-(F)- h2o体系的Eh-pH图中可以发现,当K- h2o体系中出现P-F或Si-F时,K +稳定区变窄,过量的氟不利于K +在水溶液中的稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study on the mechanism and thermodynamics of potassium leaching from phosphorus-potassium associated ore
This paper has mainly focused on the technology of transforming potassium minerals from phosphate-potassium associated minerals into soluble potassium by acid hydrolysis, and discussed the leaching mechanism of potassium in the process of leaching. As it is shown from the research, in the acid leaching system, [H +] = 8.71 mol L–1, m NH4F:m phosphorushboxpotassiumassociatedore = 0.25, the leaching rate of potassium reaches 74% at 413 K for 2 h. And the release of potassium ion is the result of the interaction of “oxidation” and “ion exchange”. It was found from the Eh-pH diagram of K-(Si)-(P)-(F)-H2O system that, when P-F or Si-F appeared in K-H2O system, the K + stable region became narrow, and the excess fluorine was not conducive to the stability of K + in aqueous solution.
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
Main Group Chemistry
Main Group Chemistry 化学-化学综合
CiteScore
2.00
自引率
26.70%
发文量
65
审稿时长
>12 weeks
期刊介绍: Main Group Chemistry is intended to be a primary resource for all chemistry, engineering, biological, and materials researchers in both academia and in industry with an interest in the elements from the groups 1, 2, 12–18, lanthanides and actinides. The journal is committed to maintaining a high standard for its publications. This will be ensured by a rigorous peer-review process with most articles being reviewed by at least one editorial board member. Additionally, all manuscripts will be proofread and corrected by a dedicated copy editor located at the University of Kentucky.
×
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