(NH4)2S-SDD复合体系在mnso4电解质中高效富集Ni、Co、Zn

IF 12.4 Q1 ENVIRONMENTAL SCIENCES
Panpan Mu , Xiaoguang Zhang , Gang Fang , Guosai Jiang , Zhe Tan , De’an Pan
{"title":"(NH4)2S-SDD复合体系在mnso4电解质中高效富集Ni、Co、Zn","authors":"Panpan Mu ,&nbsp;Xiaoguang Zhang ,&nbsp;Gang Fang ,&nbsp;Guosai Jiang ,&nbsp;Zhe Tan ,&nbsp;De’an Pan","doi":"10.1016/j.resenv.2025.100212","DOIUrl":null,"url":null,"abstract":"<div><div>In the electrolytic manganese process, efficient sulfidation enrichment of Ni, Co, and Zn is essential for resource recovery. This study uses (NH<sub>4</sub>)<sub>2</sub>S and SDD as composite sulfiding agents and employs a batch addition method to achieve high enrichment of Ni, Co, and Zn. When the temperature is 45 °C, the ammonium sulfide dosage is 40% of the theoretical value, the SDD dosage is 160% of the theoretical value, the pH is 5.60, the reaction time is 30 min, and the stirring speed is 650 rpm, the enrichment rates of Ni, Co, and Zn exceed 99%, with a manganese impurity ratio of 1475.3. Under these conditions, the sulfidation of Ni, Co, and Zn is controlled by chemical reactions, with apparent activation energies (Ea) of 30.29, 35.30, and 38.73 kJ/mol, respectively. First-principles calculation results show that the bond length of <span><math><msub><mrow><mi>C</mi></mrow><mrow><mn>3</mn></mrow></msub></math></span>H<sub>6</sub>NS<sub>2</sub>-Me<span><math><msup><mrow></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> and the Gibbs free energy during the sulfidation reaction are key factors contributing to the selective enrichment of Ni, Co, and Zn. The life cycle assessment (LCA) indicates that the treatment cost for 1 L of electrolytic manganese solution is 5.95 ¥, demonstrating good environmental and economic benefits. This study provides an efficient enrichment method for the recovery of strategic metals Ni, Co, and Zn, while also offering an electrolyte with low Ni, Co, and Zn impurities for the electrolytic manganese system.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"20 ","pages":"Article 100212"},"PeriodicalIF":12.4000,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Efficiently enriched Ni, Co, and Zn with (NH4)2S-SDD combined system in MnSO 4 electrolyte\",\"authors\":\"Panpan Mu ,&nbsp;Xiaoguang Zhang ,&nbsp;Gang Fang ,&nbsp;Guosai Jiang ,&nbsp;Zhe Tan ,&nbsp;De’an Pan\",\"doi\":\"10.1016/j.resenv.2025.100212\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In the electrolytic manganese process, efficient sulfidation enrichment of Ni, Co, and Zn is essential for resource recovery. This study uses (NH<sub>4</sub>)<sub>2</sub>S and SDD as composite sulfiding agents and employs a batch addition method to achieve high enrichment of Ni, Co, and Zn. When the temperature is 45 °C, the ammonium sulfide dosage is 40% of the theoretical value, the SDD dosage is 160% of the theoretical value, the pH is 5.60, the reaction time is 30 min, and the stirring speed is 650 rpm, the enrichment rates of Ni, Co, and Zn exceed 99%, with a manganese impurity ratio of 1475.3. Under these conditions, the sulfidation of Ni, Co, and Zn is controlled by chemical reactions, with apparent activation energies (Ea) of 30.29, 35.30, and 38.73 kJ/mol, respectively. First-principles calculation results show that the bond length of <span><math><msub><mrow><mi>C</mi></mrow><mrow><mn>3</mn></mrow></msub></math></span>H<sub>6</sub>NS<sub>2</sub>-Me<span><math><msup><mrow></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> and the Gibbs free energy during the sulfidation reaction are key factors contributing to the selective enrichment of Ni, Co, and Zn. The life cycle assessment (LCA) indicates that the treatment cost for 1 L of electrolytic manganese solution is 5.95 ¥, demonstrating good environmental and economic benefits. This study provides an efficient enrichment method for the recovery of strategic metals Ni, Co, and Zn, while also offering an electrolyte with low Ni, Co, and Zn impurities for the electrolytic manganese system.</div></div>\",\"PeriodicalId\":34479,\"journal\":{\"name\":\"Resources Environment and Sustainability\",\"volume\":\"20 \",\"pages\":\"Article 100212\"},\"PeriodicalIF\":12.4000,\"publicationDate\":\"2025-03-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Resources Environment and Sustainability\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666916125000246\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resources Environment and Sustainability","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666916125000246","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

摘要

在电解锰工艺中,高效的硫化富集镍、钴和锌是回收资源的关键。本研究以(NH4)2S和SDD为复合硫化剂,采用批量添加的方法,实现了Ni、Co、Zn的高富集。当温度为45℃,硫化铵用量为理论值的40%,SDD用量为理论值的160%,pH为5.60,反应时间为30 min,搅拌转速为650 rpm时,Ni、Co、Zn的富集率均超过99%,锰杂质比为1475.3。在此条件下,Ni、Co和Zn的硫化受化学反应控制,表观活化能(Ea)分别为30.29、35.30和38.73 kJ/mol。第一性原理计算结果表明,硫化反应中C3H6NS2-Me2+的键长和吉布斯自由能是影响Ni、Co、Zn选择性富集的关键因素。生命周期评价(LCA)表明,1 L电解锰溶液的处理成本为5.95元,具有良好的环境效益和经济效益。本研究为战略金属Ni, Co, Zn的回收提供了一种有效的富集方法,同时也为电解锰体系提供了一种低Ni, Co, Zn杂质的电解质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Efficiently enriched Ni, Co, and Zn with (NH4)2S-SDD combined system in MnSO 4 electrolyte

Efficiently enriched Ni, Co, and Zn with (NH4)2S-SDD combined system in MnSO 4 electrolyte
In the electrolytic manganese process, efficient sulfidation enrichment of Ni, Co, and Zn is essential for resource recovery. This study uses (NH4)2S and SDD as composite sulfiding agents and employs a batch addition method to achieve high enrichment of Ni, Co, and Zn. When the temperature is 45 °C, the ammonium sulfide dosage is 40% of the theoretical value, the SDD dosage is 160% of the theoretical value, the pH is 5.60, the reaction time is 30 min, and the stirring speed is 650 rpm, the enrichment rates of Ni, Co, and Zn exceed 99%, with a manganese impurity ratio of 1475.3. Under these conditions, the sulfidation of Ni, Co, and Zn is controlled by chemical reactions, with apparent activation energies (Ea) of 30.29, 35.30, and 38.73 kJ/mol, respectively. First-principles calculation results show that the bond length of C3H6NS2-Me2+ and the Gibbs free energy during the sulfidation reaction are key factors contributing to the selective enrichment of Ni, Co, and Zn. The life cycle assessment (LCA) indicates that the treatment cost for 1 L of electrolytic manganese solution is 5.95 ¥, demonstrating good environmental and economic benefits. This study provides an efficient enrichment method for the recovery of strategic metals Ni, Co, and Zn, while also offering an electrolyte with low Ni, Co, and Zn impurities for the electrolytic manganese system.
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
Resources Environment and Sustainability
Resources Environment and Sustainability Environmental Science-Environmental Science (miscellaneous)
CiteScore
15.10
自引率
0.00%
发文量
41
审稿时长
33 days
×
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