{"title":"利用酸性二氧化钛污泥制备富钛合金的可持续工艺","authors":"Sreedevi Thikkandy Edathil, Akhil Nair Anil, Venkatesan Jayapalan, Jayasankar Kalidoss","doi":"10.1007/s12666-024-03404-x","DOIUrl":null,"url":null,"abstract":"<p>Titanium oxide pigment industries produce a large amount of undissolved particles called sludge during the sulfate process of ilmenite. The sludge mainly constituted 48% TiO<sub>2</sub>, 15% SiO<sub>2</sub>, 11% Fe<sub>2</sub>O<sub>3</sub>, 4.5% SO<sub>3</sub>, and 2% Al<sub>2</sub>O<sub>3</sub>. Zirconium, vanadium, magnesium, and calcium oxides are also in small amounts. The presence of sulfur induces an acidic nature to the sludge and reduces its further utilization. Using a simultaneous process to reduce sulfur content and extract important metals is crucial. The paper describes use of acidic sludge to extract titanium to prepare titanium rich alloy. The method involves initial neutralization and reduction roasting followed by magnetic separation. The separated magnetic part was then utilized for aluminothermic reduction by smelting, resulting in titanium-rich alloy. Analytical techniques such as XRD, SEM–EDS and Thermal analysis were conducted during the studies. Titanium-rich alloys having a composition of ~ 51.8% Ti, 22.4% Al, 9.5% Si, and 16.3% Fe were achieved.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\n","PeriodicalId":23224,"journal":{"name":"Transactions of The Indian Institute of Metals","volume":"11 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sustainable Process for Preparation of Ti rich Alloy from Acidic TiO2 Sludge\",\"authors\":\"Sreedevi Thikkandy Edathil, Akhil Nair Anil, Venkatesan Jayapalan, Jayasankar Kalidoss\",\"doi\":\"10.1007/s12666-024-03404-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Titanium oxide pigment industries produce a large amount of undissolved particles called sludge during the sulfate process of ilmenite. The sludge mainly constituted 48% TiO<sub>2</sub>, 15% SiO<sub>2</sub>, 11% Fe<sub>2</sub>O<sub>3</sub>, 4.5% SO<sub>3</sub>, and 2% Al<sub>2</sub>O<sub>3</sub>. Zirconium, vanadium, magnesium, and calcium oxides are also in small amounts. The presence of sulfur induces an acidic nature to the sludge and reduces its further utilization. Using a simultaneous process to reduce sulfur content and extract important metals is crucial. The paper describes use of acidic sludge to extract titanium to prepare titanium rich alloy. The method involves initial neutralization and reduction roasting followed by magnetic separation. The separated magnetic part was then utilized for aluminothermic reduction by smelting, resulting in titanium-rich alloy. Analytical techniques such as XRD, SEM–EDS and Thermal analysis were conducted during the studies. Titanium-rich alloys having a composition of ~ 51.8% Ti, 22.4% Al, 9.5% Si, and 16.3% Fe were achieved.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical Abstract</h3>\\n\",\"PeriodicalId\":23224,\"journal\":{\"name\":\"Transactions of The Indian Institute of Metals\",\"volume\":\"11 1\",\"pages\":\"\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Transactions of The Indian Institute of Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s12666-024-03404-x\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Materials Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of The Indian Institute of Metals","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s12666-024-03404-x","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Materials Science","Score":null,"Total":0}
Sustainable Process for Preparation of Ti rich Alloy from Acidic TiO2 Sludge
Titanium oxide pigment industries produce a large amount of undissolved particles called sludge during the sulfate process of ilmenite. The sludge mainly constituted 48% TiO2, 15% SiO2, 11% Fe2O3, 4.5% SO3, and 2% Al2O3. Zirconium, vanadium, magnesium, and calcium oxides are also in small amounts. The presence of sulfur induces an acidic nature to the sludge and reduces its further utilization. Using a simultaneous process to reduce sulfur content and extract important metals is crucial. The paper describes use of acidic sludge to extract titanium to prepare titanium rich alloy. The method involves initial neutralization and reduction roasting followed by magnetic separation. The separated magnetic part was then utilized for aluminothermic reduction by smelting, resulting in titanium-rich alloy. Analytical techniques such as XRD, SEM–EDS and Thermal analysis were conducted during the studies. Titanium-rich alloys having a composition of ~ 51.8% Ti, 22.4% Al, 9.5% Si, and 16.3% Fe were achieved.
期刊介绍：
Transactions of the Indian Institute of Metals publishes original research articles and reviews on ferrous and non-ferrous process metallurgy, structural and functional materials development, physical, chemical and mechanical metallurgy, welding science and technology, metal forming, particulate technologies, surface engineering, characterization of materials, thermodynamics and kinetics, materials modelling and other allied branches of Metallurgy and Materials Engineering.
Transactions of the Indian Institute of Metals also serves as a forum for rapid publication of recent advances in all the branches of Metallurgy and Materials Engineering. The technical content of the journal is scrutinized by the Editorial Board composed of experts from various disciplines of Metallurgy and Materials Engineering. Editorial Advisory Board provides valuable advice on technical matters related to the publication of Transactions.
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