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Aluminium production route through carbosulfidation of alumina utilising H2S

Conference Paper


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Abstract


  • Indirect carbothermal reduction of alumina for the production of aluminum utilizes different

    reducing agents to convert alumina into intermediate aluminum compounds. In the present

    study, the carbosulfidation route for aluminum production utilizing H2S(g) as the reductant

    and sulfur source has been investigated, in particular the formation of AhS3 in the first step of

    the process. The results of the thermodynamic analysis predicted that conversion of Ah03(S)

    to AhS3(l) significantly increases above 1400°C at 1 atmosphere pressure. Experimental

    investigations were carried out at temperatures of 1100 to 1500°C using dilute H2S(g) gas in

    argon. The reaction products were analyzed using scanning electron microscopy (SEM),

    energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), inductively-coupled

    plasma absorption emission spectroscopy (ICP-AES) and chemical filtration. The X-ray

    diffraction results confirmed the presence of AhS3(S). Percentage of conversion from Ah03

    to AhS3 was found to be over 80% at 1500°C.

UOW Authors


  •   Huda, Nazmul (external author)
  •   Rhamdhani, Muhammad A. (external author)
  •   Brooks, Geoffrey A. (external author)
  •   Monaghan, Brian
  •   Prentice, Leon (external author)

Publication Date


  • 2013

Citation


  • Huda, N., Rhamdhani, M. Akbar., Brooks, G. A., Monaghan, B. J. & Prentice, L. (2013). Aluminium production route through carbosulfidation of alumina utilising H2S. High Temperature Processing Symposium 2013 (pp. 33-35). Melbourne:

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1530&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/524

Start Page


  • 33

End Page


  • 35

Abstract


  • Indirect carbothermal reduction of alumina for the production of aluminum utilizes different

    reducing agents to convert alumina into intermediate aluminum compounds. In the present

    study, the carbosulfidation route for aluminum production utilizing H2S(g) as the reductant

    and sulfur source has been investigated, in particular the formation of AhS3 in the first step of

    the process. The results of the thermodynamic analysis predicted that conversion of Ah03(S)

    to AhS3(l) significantly increases above 1400°C at 1 atmosphere pressure. Experimental

    investigations were carried out at temperatures of 1100 to 1500°C using dilute H2S(g) gas in

    argon. The reaction products were analyzed using scanning electron microscopy (SEM),

    energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), inductively-coupled

    plasma absorption emission spectroscopy (ICP-AES) and chemical filtration. The X-ray

    diffraction results confirmed the presence of AhS3(S). Percentage of conversion from Ah03

    to AhS3 was found to be over 80% at 1500°C.

UOW Authors


  •   Huda, Nazmul (external author)
  •   Rhamdhani, Muhammad A. (external author)
  •   Brooks, Geoffrey A. (external author)
  •   Monaghan, Brian
  •   Prentice, Leon (external author)

Publication Date


  • 2013

Citation


  • Huda, N., Rhamdhani, M. Akbar., Brooks, G. A., Monaghan, B. J. & Prentice, L. (2013). Aluminium production route through carbosulfidation of alumina utilising H2S. High Temperature Processing Symposium 2013 (pp. 33-35). Melbourne:

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1530&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/524

Start Page


  • 33

End Page


  • 35