Skip to main content
Log in

Effect of titanium additives on carbon anode reactivity

  • Metallurgy of Nonferrous Metals
  • Published:
Russian Journal of Non-Ferrous Metals Aims and scope Submit manuscript

Abstract

In order to ascertain the impact of titanium additives on carbon anode reactivity, different titanium content of carbon anodes were prepared with the single factor experimental method, and test its reactivity in CO2 and air atmosphere respectively. The micro structure of carbon anodes and pitch cokes were tested by XRD. The pyrolysis process of pitch was tested with the TG-DTG method. The results show that the residual rate and chalking rate of carbon anode can also be significantly improved by increasing titanium content. Titanium additives can refine the crystallite size of carbon anode, promote the asphalt carbonization. The titanium additives can increase the apparent activation energy and pitch coke yield of the pyrolysis process, when the titanium content is 1.5%, E a is 56.405 KJ/ mol, reaction order is 6.4, and the rate of pitch coke yield is 50.5%.

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.

Similar content being viewed by others

References

  1. Charette, A., Ferland, J., Kocaete, D., et al., Experimental and kinetics study of volatile evolution from impregnated electrodes, Fuel, 1990, vol. 69, pp. 194–202.

    Article  Google Scholar 

  2. Jin, X., Fengqi, D., Jie, L., Zhong, Z., Guorong, H., and Yexiang, L, Industrial testing of property-modified prebaked carbon anode for aluminum electrolysis, Trans. Nonferrous Met. Soc. China, 2003, vol. 13, no. 3, pp. 686–689.

    Google Scholar 

  3. Fengqin, L., Yexiang, L., Mannweiler, U., and Perruchoud, R, Effect of coke properties and its blending recipe on performances of carbon anode for aluminium electrolysis, J. Cent. South Univ. Technol., 2006, vol. 13, no. 6, pp. 647–652.

    Article  Google Scholar 

  4. Duygu Kocaefe, Yadian Xie, Yasar Kocaefe, et al., Thermogravimetric study on devolatilization Kinetics of chianlco anodes during baking, J. Mater. Sci. Res., 2013, vol. 2, no. 2, pp. 21–34.

    Google Scholar 

  5. Tao Xu and Xiaoming Huang, A TG-FTIR investigation into smoke suppression mechanism of magnesium hydroxide in asphalt combustion process, J. Anal. Appl. Pyrolysis, 2010, vol. 87, pp. 217–223.

    Article  Google Scholar 

  6. Gerald, A.Z., Bemd, S., Notburga, G., et al., A reconsideration of the relationship between the crystallite size La of carbons determined by X-ray diffraction and Raman spectroscopy, Carbon, 2006, vol. 44, no. 15, pp. 3239–3246.

  7. Zubkova, V.V, Influence of polyethylene terephthalate on the carbonization of bituminous coals and on the modification of their electric and dielectric properties, Fuel, 2006, vol. 85, pp. 1652–1665.

    Article  Google Scholar 

  8. Ciesinska, W., Zielinski, J., and Brzozowska, T, Thermal treatment of pitch-polymer blends, J. Therm. Anal. Calorim., 2009, vol. 95, no. 1, pp. 193–196.

    Article  Google Scholar 

  9. Qilang Lin, Tiehu Li, Yongbin Ji, et al., Study of the modification of coal-tar pitch with p-methyl benzaldehyde, Fuel, 2005, vol. 84, pp. 177–182.

    Article  Google Scholar 

  10. Sima, L., Blanco, C., Santamaria, R., et al., Relationship between chemical composition and pyrolysis behaviour of a medium temperature pitch (or Lurgigasifier pitch), Fuel Process. Technol., 2003, vol. 84, pp. 63–67.

    Article  Google Scholar 

  11. Yuping Wu, Shibi Fang, and Yingyan Jiang, Investigation of the effects of V2O5 addition on the electrochemical properties of carbon anodes, J. Power Sources, 1998, vol. 75, pp. 167–170.

    Article  Google Scholar 

  12. Dos Santos Batista, J. and Da Silveira, B.A, Influence of the sodium content on the reactivity of carbon anodes, Mater. Res., 2008, vol. 11, no. 3, pp. 387–390.

    Article  Google Scholar 

  13. Kuang, Z., Thonstad, J., and Sørlie, M, Effects of additivess on the electrolytic consumption of carbon anodes in aluminum electrolysis, Carbon, 1995, vol. 33, no. 10, pp. 1479–1484.

    Article  Google Scholar 

  14. Liu Zhi-yong, Wang Ming-xing, Weng Yong-gang, et al., Grain refinement effects of Al based alloys with low titanium content produced by electrolysis, Chin. J. Nonferrous Metals, 2002, vol. 12, no. 6, pp. 1121–1126.

    Google Scholar 

  15. Liu Zhi-yong, Wang Ming-xing, and Weng Yong-gang, Crystal nucleation and growth of Al-based alloys produced by electrolysis, J. Mater. Sci. Technol., 2003, vol. 19, no. 5, pp. 427–430.

    Google Scholar 

  16. Kuang, Z., Thonstad, J., Rolseth, S., et al., Effect of baking temperature and anode current density on anode carbon consumption, Metall. Mater. Trans. B, 1996, vol. 27, no. 4, pp. 177–183.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Liangying Wen.

Additional information

The article is published in the original.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Li, Z., Zhang, N. & Wen, L. Effect of titanium additives on carbon anode reactivity. Russ. J. Non-ferrous Metals 58, 218–224 (2017). https://doi.org/10.3103/S1067821217030117

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1067821217030117

Keywords

Navigation