Direct processing of cellular ceramics from a single red mud precursor
Source abstract
Abstract
Abstract The feasibility of recycling red mud waste by its direct transformation into highly-porous cellular ceramics was successfully demonstrated. Ceramic materials with designed cellular porosity were processed by emulsification of red mud suspensions with liquid paraffin. Taguchi method was used to study the effects provided by varying the red mud load in the suspension, gelatine content and emulsion stirring time on the micro structural features of the cellular ceramics. Additional experiments analysed the effects of the organic to suspension ratio and firing temperature. Emulsification of paraffin followed by gelatine consolidation, drying, elimination of the droplets of the discontinuous organic phase and firing, allowed one to design cellular ceramic pieces with open porosity up to 75%, consisting in interconnected cells with adjustable cell size and low resistance to percolation. These results allow one to consider prospective applications of red mud-based cellular ceramics with designed microstructures as highly-porous membranes for the capture of pollutants.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Bauxite Residue and Utilization · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
Show source-provided references
1. Utilization of red mud in road base and subgrade materials: a review10.1016/j.resconrec.2018.10.031 ↗
2. The use of red mud as an immobiliser for metal/metalloid-contaminated soil: a review10.1016/j.jhazmat.2016.11.073 ↗
3. The composition, recycling and utilisation of Bayer red mud10.1016/j.resconrec.2018.11.006 ↗
4. Preparation of high porosity bricks by utilizing red mud and mine tailing10.1016/j.jclepro.2018.10.044 ↗
5. Influence of red mud on fresh and hardened properties of self-compacting concrete10.1016/j.conbuildmat.2018.05.171 ↗
6. Recycling of waste red mud for production of ceramic floor tile with high strength and lightweight10.1016/j.jallcom.2018.03.220 ↗
7. Experimental and simulative study on phase transformation in Bayer red mud soda-lime roasting system and recovery of Al, Na and Fe10.1016/j.mineng.2012.05.021 ↗
8. Recovery of iron from bauxite residue using advanced separation techniques10.1016/j.mineng.2019.02.018 ↗
9. Reduction of phosphorus release from high phosphorus soil by red mud10.1007/s12665-011-1105-x ↗
10. Effect of acid treatment on red mud properties with implications on Ni ( II ) sorption and stability
11. Catalytic efficiency of red mud for the degradation of olive mill wastewater through heterogeneous fenton’s process10.3390/w11061183 ↗
12. Sequestration of carbon dioxide (CO2) using red mud10.1016/j.jhazmat.2009.11.146 ↗
13. Processing routes to macroporous ceramics: a review10.1111/j.1551-2916.2006.01044.x ↗
14. Gas permeability of microcellular ceramic foams10.1021/ie061335d ↗
15. Cellular ceramics by direct foaming of emulsified ceramic powder suspensions10.1111/j.1551-2916.2008.02553.x ↗
16. New cellular ceramics from high alkane phase emulsified suspensions (HAPES)10.1016/j.jeurceramsoc.2009.02.003 ↗
17. Ceramic-based membranes for water and wastewater treatment10.1016/j.colsurfa.2019.05.074 ↗
18. Wastewater treatment using a hybrid system combining adsorption, photocatalytic degradation and membrane filtration processes10.1016/j.jwpe.2019.01.003 ↗
19. Honeycomb carbon foams with tunable pore structures prepared from liquefied larch sawdust by self-foaming10.1016/j.indcrop.2014.09.043 ↗
20. Starch as a pore-forming and body-forming agent in ceramic technology10.1002/star.200900138 ↗
21. Cellular ceramics by gelatin gelcasting of emulsified suspensions with sunflower oil10.1016/j.jeurceramsoc.2015.03.008 ↗
22. Cellular ceramics processed by paraffin emulsified suspensions with collagen consolidation10.1016/j.matlet.2013.02.020 ↗
23. Effects of processing parameters on cellular ceramics obtained by paraffin emulsified suspensions10.1016/j.ceramint.2014.01.117 ↗
24. Designed porous microstructures for electrochemical reduction of bulk hematite ceramics10.1016/j.matdes.2017.03.031 ↗
25. Processing of highly-porous cellular iron oxide-based ceramics by emulsification of ceramic suspensions10.1016/j.ceramint.2018.08.024 ↗
26. Quality engineering: the Taguchi method
27. Abrantes · 2001
28. Cellular PCM/graphite composites with improved thermal and electrical response10.1016/j.matlet.2012.10.025 ↗
29. Archimedes revisited: a faster, better, cheaper method of accurately measuring the volume of small objects10.1088/0031-9120/40/5/008 ↗
30. The influence of structural parameters on the permeability of ceramic foams10.1590/S0104-66322004000100004 ↗
31. Flexible design of cellular Al2TiO5 and Al2TiO5-Al2O3 composite monoliths by reactive firing10.1016/j.matdes.2017.06.010 ↗
32. Gelatin as an emulsifying agent10.1021/ja01455a011 ↗
33. Gelatin as a stabilizing colloid for oil in water emulsion systems
34. Properties and stability of oil-in-water emulsions stabilized by fish gelatin10.1016/j.foodhyd.2005.06.002 ↗
35. Thermal behavior and evolution of the mineral phases of Brazilian red mud10.1007/s10973-010-1039-7 ↗
36. Physical and chemical properties of sintering red mud and bayer red mud and the implications for beneficial utilization10.3390/ma5101800 ↗
37. Mineral phase and physical properties of red mud calcined at different temperatures
38. Bauxite “red mud” in the ceramic industry. Part 1: thermal behaviour10.1016/S0955-2219(99)00088-6 ↗
39. Lide · 2007
40. Impedance spectroscopy on porous materials: a general model and application to graphite electrodes of lithium-ion batteries10.1016/j.electacta.2007.12.060 ↗
41. Electroceramics : characterization by impedance spectroscopy10.1002/adma.19900020304 ↗
42. Barsoukov · 2005
43. Alternative representation of impedance spectra of ceramics10.1016/S0025-5408(00)00269-5 ↗
44. Using red mud bauxite for the neutralization of acid mine tailings: a column leaching test10.1139/t06-071 ↗
45. Alternative neutralisation materials for acid mine drainage treatment10.1016/j.jwpe.2018.01.004 ↗
46. A review on the potential uses of red mud as amendment for pollution control in environmental media10.1007/s11356-019-05576-2 ↗