LAPSE:2024.1216
Published Article
LAPSE:2024.1216
The Application of Dextran Sodium Sulfate to the Efficient Separation of Ilmenite and Forsterite, as a Flotation Depressant
June 21, 2024
Abstract
A depressant is essential to the effective flotation-based separation of ilmenite and forsterite, based on their comparable physicochemical characteristics. In this work, dextran sodium sulfate (DSS) was initially introduced as a depressant, to aid in the separation of ilmenite and forsterite. Comparing the DSS to conventional natural starch, the results indicate that the forsterite exerts a greater depression over the ilmenite. The difference in recovery of ilmenite and forsterite was 75.44% at 10 mg/L of DSS dosage. The DSS was chemisorbed strongly onto the forsterite surface via Mg active sites, whereas its interaction with the ilmenite surface via physisorption was weak, based on the XPS and molecular-dynamics-simulation analyses. The results of the AFM and QCM-D investigations showed that the DSS adsorption layer on the forsterite surface was larger than those on the ilmenite surface. Consequently, DSS may function as a depressant, to effectively separate forsterite from ilmenite ore.
A depressant is essential to the effective flotation-based separation of ilmenite and forsterite, based on their comparable physicochemical characteristics. In this work, dextran sodium sulfate (DSS) was initially introduced as a depressant, to aid in the separation of ilmenite and forsterite. Comparing the DSS to conventional natural starch, the results indicate that the forsterite exerts a greater depression over the ilmenite. The difference in recovery of ilmenite and forsterite was 75.44% at 10 mg/L of DSS dosage. The DSS was chemisorbed strongly onto the forsterite surface via Mg active sites, whereas its interaction with the ilmenite surface via physisorption was weak, based on the XPS and molecular-dynamics-simulation analyses. The results of the AFM and QCM-D investigations showed that the DSS adsorption layer on the forsterite surface was larger than those on the ilmenite surface. Consequently, DSS may function as a depressant, to effectively separate forsterite from ilmenite ore.
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Keywords
depressant, dextran sodium sulfate, flotation, forsterite, ilmenite, interaction mechanisms
Subject
Suggested Citation
Fan G, Zhang H, Tian F, Wang H, Xu L, Cao Y, Xu H, Zhang F, He J, Li G. The Application of Dextran Sodium Sulfate to the Efficient Separation of Ilmenite and Forsterite, as a Flotation Depressant. (2024). LAPSE:2024.1216
Author Affiliations
Fan G: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
Zhang H: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China
Tian F: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China
Wang H: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China
Xu L: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China [ORCID]
Cao Y: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
Xu H: School of Chemical & Environment Engineering, China University of Mining and Technology—Beijing, Beijing 100083, China [ORCID]
Zhang F: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
He J: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
Li G: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
Zhang H: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China
Tian F: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China
Wang H: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China
Xu L: School of Chemical Engineering, Zhengzhou University, Zhengzhou 450000, China [ORCID]
Cao Y: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
Xu H: School of Chemical & Environment Engineering, China University of Mining and Technology—Beijing, Beijing 100083, China [ORCID]
Zhang F: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
He J: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
Li G: Henan Critical Metals Institute, Zhengzhou University, Zhengzhou 450000, China; Zhongyuan Critical Metals Laboratory, Zhengzhou 450000, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou
Journal Name
Processes
Volume
12
Issue
1
First Page
134
Year
2024
Publication Date
2024-01-04
ISSN
2227-9717
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PII: pr12010134, Publication Type: Journal Article
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LAPSE:2024.1216
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https://doi.org/10.3390/pr12010134
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Jun 21, 2024
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