Influence of dispersants on the rheological and colloidal properties of iron ore ultrafine particles and their effect on the pelletizing process—A review
Source abstract
Abstract
The use of binders for iron ore pelletizing is required to: (a) increase the pellet strength before heating – green strength; (b) prevent the collapse of the pellets during firing, when the gases generated by water vaporization could cause cracks. Bentonite is the main binder used in industry, and its binding mechanism in iron ore pellets has been widely studied and understood. Efforts to solve the problems of using bentonite in iron ore pelletizing have focused on the employment of organic binders the composition of which presents dispersant properties. This review critically evaluates the current understanding of the influence of dispersants on the quality of iron ore pellets, by means of their action on the colloidal and rheological properties of iron ore ultrafine particles. Emphasis is given to obtaining parameters for practical application of this action in the pelletizing process in bench and pilot scales.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Mineral Processing and Grinding · Minerals Flotation and Separation Techniques · Iron and Steelmaking Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Slurry rheology in wet ultrafine grinding of industrial minerals: a review10.1016/j.powtec.2004.09.032 ↗
2. Wang · 2003 · 4
3. Reologia no tratamento de minérios
4. Effect of chemical additives on the dynamics of grinding media in wet ball mill grinding10.1016/0301-7516(85)90044-4 ↗
5. A multi-torque model for the effects of dispersants and slurry viscosity on ball milling10.1016/0301-7516(90)90028-W ↗
6. An overview of the use of chemical reagents in mineral processing10.1016/j.mineng.2004.09.015 ↗
7. Moraes · 2004 · 80
8. Lima · 1991 · 145
9. Effect of the addition of organic binders on the behavior of iron ore pellets KONA: powder and particle
10. Reologia de suspensões minerais: uma revisão
11. Role of dispersants in kinetics and energetics of stirred ball mill grinding10.1016/0301-7516(96)00003-8 ↗
12. Rheology and the minerals industry10.1080/08827509908962460 ↗
13. Effects of slurry rheology on industrial grinding performance10.1016/S0301-7516(01)00060-6 ↗
14. Rheological effects in grinding circuits10.1016/0301-7516(88)90067-1 ↗
15. Influence of material breakage properties and associated slurry rheology on breakage rates in wet grinding of coal and ores in tumbling media Mills
16. Rheology of concentrated dispersions10.1016/0001-8686(76)80008-5 ↗
17. Chaves · 1996
18. The problem of recovering very fine particles in mineral processing – a review10.1016/0301-7516(90)90046-2 ↗
19. A study of polymer/surfactant interaction at the mineral/solution interface10.1016/0166-6622(85)80007-X ↗
20. Use of organic polymers in the flotation of polymetallic ores: a review10.1016/S0892-6875(99)00015-1 ↗
21. Dispersion of hematite suspensions with sodium polymetracrylate dispersants in alkaline medium10.1016/j.colsurfa.2006.02.035 ↗
22. A study on the beneficiation of Indian iron-ore fines and slime using chemical additives10.1016/0301-7516(89)90034-3 ↗
23. Effect of the length of the side chains of comb-like copolymer dispersants on dispersion and rheological properties of concentrated cement suspensions10.1016/j.jcis.2009.04.057 ↗
24. The rheological and colloidal properties of bentonite dispersions in the presence of organic compounds v. bentonite and sodium montmorillonite and surfactants10.1346/CCMN.1995.0430210 ↗
25. The influence of chemical additives on surface charge and hardness of hematite10.1016/0301-7516(91)90010-G ↗
26. Dispersion of Fe3O4 suspensions using sodium dodecylbenzene sulphonate as dispersant10.1016/j.matlet.2006.12.091 ↗
27. The use of polyacrylamides in mineral processing10.1016/0892-6875(92)90227-Z ↗
28. Effect of mineral geology, mineral size and settling time on selective dispersion and separation process for recovering iron value from iron ultra fines10.1016/j.powtec.2011.03.032 ↗
29. Vieira · 2011 · 151
30. Effects of various parameters on the dispersion of ultra fine iron ore slurry. Part-1
31. The selection of wet grinding chemical additives based on slurry rheology control10.1016/S0032-5910(99)00169-2 ↗
32. A review of binders in iron ore pelletization10.1080/08827500306896 ↗
33. Agglomeration: the state of the art