Production of aluminum sulfide through carbosulfidation utilising H 2S

Nazmul Huda*, M. A. Rhamdhani, G. A. Brooks, B. J. Monaghan, L. Prentice

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

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 A12S3 in the first step of the process. The results of the thermodynamic analysis predicted that conversion of Al2O3(s) to Al 2S3(1) 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 Al2S3(s). Percentage of conversion from Al 2O3 to Al2S3 was found to be over 80% at 1500°C.

Original languageEnglish
Title of host publicationLight Metals 2012 - At the TMS 2013 Annual Meeting and Exhibition
EditorsBarry A. Sandler
Place of PublicationHoboken, NJ
PublisherJohn Wiley & Sons
Pages1299-1304
Number of pages6
ISBN (Print)9781118605721
Publication statusPublished - 2013
Externally publishedYes
EventLight Metals 2012 - TMS 2013 Annual Meeting and Exhibition - San Antonio, TX, United States
Duration: 3 Mar 20137 Mar 2013

Other

OtherLight Metals 2012 - TMS 2013 Annual Meeting and Exhibition
CountryUnited States
CitySan Antonio, TX
Period3/03/137/03/13

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