Startseite Chapter 17 The Mn oxides tailing from Amazon Region as low-cost raw material to synthesis of shigaite-type phase
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Chapter 17 The Mn oxides tailing from Amazon Region as low-cost raw material to synthesis of shigaite-type phase

  • Kássia L. L Marinho , Bruno A. M. Figueira , Dorsan S Moraes , Oscar J. C. Fernandez und Marcondes L. da Costa
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Industrial Waste
Ein Kapitel aus dem Buch Industrial Waste

Abstract

The work herein describes the synthesis of layered double hydroxide with shigaite structure from Mn tailings found in the Kalunga dam (Carajás Mineral Province, Brazil). The characterization results showed that the tailings were chemically formed by MnO (54,015 wt.%), Al2O3 (12,454 wt.%), Fe2O3 (9,061 wt.%) and SiO2 (7,003 wt.%). Mineralogically, they were composed by birnessite, cryptomelane, lithiophorite, kaolinite, gibbsite and anatase. After the development of the synthesis process, Mn tailings were converted into shigaite without impurities with the ratio Mn2+:Al3+= 2:1, temperature of 85 °C and 24 h of reaction time. The lamellar product was characterized by diagnostic FTIR bands in the 4000-400 cm-1 range, thermal stability above 180 °C, hexagonal plate morphology around 5 μm and 0.365 nm lattice fingers. The results demonstrated that the use of abundant low-cost starting material was adequate to obtain a rare phase belonging to the manganous layered double hydroxide.

Abstract

The work herein describes the synthesis of layered double hydroxide with shigaite structure from Mn tailings found in the Kalunga dam (Carajás Mineral Province, Brazil). The characterization results showed that the tailings were chemically formed by MnO (54,015 wt.%), Al2O3 (12,454 wt.%), Fe2O3 (9,061 wt.%) and SiO2 (7,003 wt.%). Mineralogically, they were composed by birnessite, cryptomelane, lithiophorite, kaolinite, gibbsite and anatase. After the development of the synthesis process, Mn tailings were converted into shigaite without impurities with the ratio Mn2+:Al3+= 2:1, temperature of 85 °C and 24 h of reaction time. The lamellar product was characterized by diagnostic FTIR bands in the 4000-400 cm-1 range, thermal stability above 180 °C, hexagonal plate morphology around 5 μm and 0.365 nm lattice fingers. The results demonstrated that the use of abundant low-cost starting material was adequate to obtain a rare phase belonging to the manganous layered double hydroxide.

Kapitel in diesem Buch

  1. Frontmatter I
  2. Contents V
  3. List of Authors IX
  4. Part 1: Measurement and properties
  5. Chapter 1 Characterization of supplementary cementitious materials and their quantification in cement blends by solid-state NMR 3
  6. Chapter 2 Mineralogical quantification of cements, wastes and supplementary cementitious materials 33
  7. Chapter 3 Microstructure analysis with quantitative phase mapping using SEM-EDS and Phase Recognition and Characterization (PARC) Software: applied to steelmaking slag 57
  8. Chapter 4 The use of μXRF in the characterization of industrial wastes and pozzolanes 97
  9. Part 2: Characterization of industrial residues
  10. Chapter 5 Characterization of supplementary cementitious materials: Brown coal fly ashes 165
  11. Chapter 6 Iron and steel slags: from wastes to by-products of high technical, economical and ecological advantages 203
  12. Chapter 7 Utilization of Supplementary cementitious materials (SCM) in Portland cement, alkali activated and ternary binders 253
  13. Chapter 8 Study of some physico chemical properties of plastic clays belonging to Girujan deposits from Chumoukedima Nagaland, India and their prospective industrial applications 297
  14. Part 3: Use and application of industrial residues
  15. Chapter 9 Conversion of CO2 into useful products 319
  16. Chapter 10 Mine tailings as precursors for alkali-activated materials and ettringite binders 345
  17. Chapter 11 Industrial waste as fuel and raw material in the cement industry 361
  18. Chapter 12 Fly ash from municipal solid waste Incineration: from industrial residue to resource for zinc 379
  19. Chapter 13 Residues of industrial wastewater treatment: Hazardous waste or anthropogenic resource? 403
  20. Chapter 14 Composites of some sustainable siliceous materials for the removal of fluoride from ground water and immobilization of the sludge generated 433
  21. Part 4: Residues from mining
  22. Chapter 15 Characterization and mineral processing options of “Kupferschiefer”-type low-grade black shale ore from mining dumps in Central Germany 455
  23. Chapter 16 Rare-earth elements in phosphogypsum and mineral processing residues from phosphate-rich weathered alkaline ultramafic rocks, Brazil 505
  24. Chapter 17 The Mn oxides tailing from Amazon Region as low-cost raw material to synthesis of shigaite-type phase 541
  25. Chapter 18 Eco-cements out of Belterra Clay: An extensive Brazilian bauxite overburden to produce low-CO2 eco-friendly calcium sulphoaluminate based cements 553
  26. Index 581
Heruntergeladen am 21.10.2025 von https://www.degruyterbrill.com/document/doi/10.1515/9783110674941-017/html
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