Skip to main content
Log in

Effect of Dispersant on the Dispersibility of CaO–Al2O3-Based Mold Powder Slurry

  • Original Article
  • Published:
Transactions of the Indian Institute of Metals Aims and scope Submit manuscript

Abstract

The fast hydration rate of aluminate makes the slurry of CaO–Al2O3-based mold flux coagulates fast, which hinders the production and large-scale application in steel plants. This study selected four dispersants and investigated their mechanism and influence on the dispersibility of CaO–Al2O3-based mold powder slurry. Main results showed that the stability of CaO–Al2O3-based mold powder slurry was poorer than CaO–SiO2-based mold powder slurry. The addition of non-ionic dispersant, OP-10 or glycerol, could make the viscosity of the CaO–Al2O3-based slurry become larger, and the macromolecule dispersant, Poly Vinyl Pyrrolidone, resulted in unstable variation of the viscosity of the mold powder slurry. The anionic dispersant, tannic acid, performed well, as it was able to release negative charges covering the powder particles, and the electrostatic repulsion made the aggregation among particles difficult to occur. The 5 wt% addition of tannic acid was found to effectively improve the dispersion of the CaO–Al2O3-based slurry.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. Jo M C J M C, Zargaran A, Sohn S S, Kim N J and Lee S, Mater Sci Eng A (2021) 806.

  2. Bo Z, Bo T and Kong F, Int J Comput Eng 1 (2018).

  3. Shengping H, Qian W, Jianhua Z, et al., J Iron Steel Res 21 (2009).

  4. Zhirong L, Research on Reactivity Control and Basic Structure Properties of Mold flux for High-Mn High-Al Steel. ChongQing University (2019).

  5. Qian W, Shengping H, Yu W, et al. 2004 National Technical Conference on Steel Making and Rolling (2004).

  6. Dafu Duan. NAIHUO CAILIAO, 2004, 38(5): 339-342.

    CAS  Google Scholar 

  7. Zuohong Wu. CARBON, 2004(01): 42-43.

    Google Scholar 

  8. Xiaohong Luo. XINXI JILU CAILIAO, 2009, 10(04): 37-43.

    CAS  Google Scholar 

  9. Yuyun H and Yezhen Y, J Highway Transp Res Dev 15 (2019) 20.

  10. Jinglei L. Research on the Preparation and Cementitious Behavior of Barium Aluminate Cement. Wuhan University of Science and Technology (2018).

  11. Yuandong M. Effect of Dispersants on Hydration and Setting Behavior of Different Calcium A luminate Cements. Zhengzhou University (2015).

  12. Jiajia M. A Statistical Method for Synthesizing Pigment Dispersant and its Application in Paper Coating Process. Nanjing Forestry University (2009).

  13. Wenzhu Yang, Carbon Techn, 1996(03): 46-49.

    Google Scholar 

  14. Yuebiao W, Wenbin Z, Yufeng W. Shanghai Coat 48 (2010) 4.

  15. Hejie Zhang. Coat Technol Abstr, 2012, 33(09): 25-28.

    Google Scholar 

  16. Guoting W. Colloidal Stability. Science Press (1990).

  17. Yumei Li, Jisheng Li. Solid Lubric 1985(03): 137-145.

    Google Scholar 

  18. Jianying G, Lei Z, Shengyu L, et al., Fuel (2018).

  19. Sakar-Deliormanli A, Celik E, Polat M, et al. J. Therm. Anal. Calorim, 2008, 94(3): 663-667.

    Article  Google Scholar 

  20. Shaoda Z, Qian W, Yongjian L. Influence of Dispersant on the Performance of Mold Flux Slurry and Sintering. Technology seminar of mold flux (2012).

  21. Ming Z. Research on Water-Based Lubricating Properties of Polyvinylpyrrolidone. Dalian Maritime University (2019).

  22. Fengyan W. Formation of Low Ca/Si Ratio C-S-H Gel and ITS MECHANISM in Controlling ASR in High Performance Cement. Nanjing Tech University (2005).

  23. Yangyang Z. Characterization, Control and Cementitious Mechanism of AH3 Phase in Calcium Sulfoaluminate Cement. Dalian University of Technology (2019).

Download references

Acknowledgements

The authors are grateful for support from the National Natural Science Foundation of China (U20A20270, U1660204 and 52074054) and the Fourth Period Science and Technology Key Project of Panxi Experimental Area (1840STC30699).

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Shengping He or Qiangqiang Wang.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Pan, W., Mao, Y., Zhang, M. et al. Effect of Dispersant on the Dispersibility of CaO–Al2O3-Based Mold Powder Slurry. Trans Indian Inst Met 75, 473–479 (2022). https://doi.org/10.1007/s12666-021-02421-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12666-021-02421-4

Keywords

Navigation