Xiaohua Peng, Bo Yang, Xingbin Li, Xingzheng Dai, Chang Wei, Zhanqing Lu, Zhigan Deng, Minting Li
{"title":"150 ~ 160℃热液矿化沉淀法去除高硫酸盐锌浸出液中的铁","authors":"Xiaohua Peng, Bo Yang, Xingbin Li, Xingzheng Dai, Chang Wei, Zhanqing Lu, Zhigan Deng, Minting Li","doi":"10.1007/s11837-025-07546-1","DOIUrl":null,"url":null,"abstract":"<div><p>This study suggests using the hematite process, which operates at a temperature range of 150 − 160°C, to effectively remove iron (Fe) ions from zinc (Zn) leaching solutions. Repeated experiments were carried out in the laboratory to evaluate the practicality and efficiency of the low-temperature hematite process. The findings demonstrated a substantial decrease in the ultimate total Fe concentration in the solution to 1 g/L within a time frame of 180 min. The Fe ions were observed to precipitate as hematite products, which contained more than 55% Fe. The analytical techniques used, XRD, FT-IR, and XPS, revealed that the hematite products were mainly composed of α-Fe<sub>2</sub>O<sub>3</sub>, α-FeOOH, and small quantities of KFe<sub>3</sub>(SO<sub>4</sub>)<sub>2</sub>(OH)<sub>6</sub> and NaFe<sub>3</sub>(SO<sub>4</sub>)<sub>2</sub>(OH)<sub>6</sub>. The sulfate was found to be either wrapped around or embedded within the products. Moreover, the XPS spectra revealed the occurrence of a dehydration phenomenon involving hydrated ferric oxide during the hematite process. The SEM pictures revealed that the hematite products had a morphology characterized by clusters of spherical particles made of ferric oxide and rhombus-shaped crystals composed of jarosite phases. The experimental results confirm the feasibility of the low-temperature (150 − 160°C) hematite process.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 9","pages":"6727 - 6743"},"PeriodicalIF":2.3000,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Iron Removal from Zinc Leaching Solution with High Sulfate Concentration via Hydrothermal Mineralization Precipitation at 150−160°C\",\"authors\":\"Xiaohua Peng, Bo Yang, Xingbin Li, Xingzheng Dai, Chang Wei, Zhanqing Lu, Zhigan Deng, Minting Li\",\"doi\":\"10.1007/s11837-025-07546-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study suggests using the hematite process, which operates at a temperature range of 150 − 160°C, to effectively remove iron (Fe) ions from zinc (Zn) leaching solutions. Repeated experiments were carried out in the laboratory to evaluate the practicality and efficiency of the low-temperature hematite process. The findings demonstrated a substantial decrease in the ultimate total Fe concentration in the solution to 1 g/L within a time frame of 180 min. The Fe ions were observed to precipitate as hematite products, which contained more than 55% Fe. The analytical techniques used, XRD, FT-IR, and XPS, revealed that the hematite products were mainly composed of α-Fe<sub>2</sub>O<sub>3</sub>, α-FeOOH, and small quantities of KFe<sub>3</sub>(SO<sub>4</sub>)<sub>2</sub>(OH)<sub>6</sub> and NaFe<sub>3</sub>(SO<sub>4</sub>)<sub>2</sub>(OH)<sub>6</sub>. The sulfate was found to be either wrapped around or embedded within the products. Moreover, the XPS spectra revealed the occurrence of a dehydration phenomenon involving hydrated ferric oxide during the hematite process. The SEM pictures revealed that the hematite products had a morphology characterized by clusters of spherical particles made of ferric oxide and rhombus-shaped crystals composed of jarosite phases. The experimental results confirm the feasibility of the low-temperature (150 − 160°C) hematite process.</p></div>\",\"PeriodicalId\":605,\"journal\":{\"name\":\"JOM\",\"volume\":\"77 9\",\"pages\":\"6727 - 6743\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JOM\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11837-025-07546-1\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JOM","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11837-025-07546-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Iron Removal from Zinc Leaching Solution with High Sulfate Concentration via Hydrothermal Mineralization Precipitation at 150−160°C
This study suggests using the hematite process, which operates at a temperature range of 150 − 160°C, to effectively remove iron (Fe) ions from zinc (Zn) leaching solutions. Repeated experiments were carried out in the laboratory to evaluate the practicality and efficiency of the low-temperature hematite process. The findings demonstrated a substantial decrease in the ultimate total Fe concentration in the solution to 1 g/L within a time frame of 180 min. The Fe ions were observed to precipitate as hematite products, which contained more than 55% Fe. The analytical techniques used, XRD, FT-IR, and XPS, revealed that the hematite products were mainly composed of α-Fe2O3, α-FeOOH, and small quantities of KFe3(SO4)2(OH)6 and NaFe3(SO4)2(OH)6. The sulfate was found to be either wrapped around or embedded within the products. Moreover, the XPS spectra revealed the occurrence of a dehydration phenomenon involving hydrated ferric oxide during the hematite process. The SEM pictures revealed that the hematite products had a morphology characterized by clusters of spherical particles made of ferric oxide and rhombus-shaped crystals composed of jarosite phases. The experimental results confirm the feasibility of the low-temperature (150 − 160°C) hematite process.
期刊介绍：
JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.
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