Title

PRIMUS®, a new process for the recycling of by-products and the prereduction of iron ore

PRIMUS®, a new process for the recycling of by-products and the prereduction of iron ore

Authorship

MONAI, J.; FRIEDEN, R.; HANSMANN, T.; ROTH, J. L.; SOLVI, M.; ENGEL, R.

MONAI, J.

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FRIEDEN, R.

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HANSMANN, T.

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ROTH, J. L.

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SOLVI, M.

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ENGEL, R.

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DOI

10.5151/2594-5327-C01036

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Abstract

For years, the iron and steel industry has been in search of new processes for an efficient production of virgin steel as well as for the recycling of its by-products, especially for those containing zinc. Considering these objectives, PAUL WURTH S.A. has developed a process using the multiple-hearth furnace, and coal fines as the reductant and main energy source. A trial plant with a capacity of about 2 t/h was built and has been operated for about one year at the ProfilArbed Belval site. This paper reports on the trial campaigns carried out for recycling by-products such as steelmaking sludges, dusts and scale, as well as for reducing iron ore fines, both of which have given most promising results.

For years, the iron and steel industry has been in search of new processes for an efficient production of virgin steel as well as for the recycling of its by-products, especially for those containing zinc. Considering these objectives, PAUL WURTH S.A. has developed a process using the multiple-hearth furnace, and coal fines as the reductant and main energy source. A trial plant with a capacity of about 2 t/h was built and has been operated for about one year at the ProfilArbed Belval site. This paper reports on the trial campaigns carried out for recycling by-products such as steelmaking sludges, dusts and scale, as well as for reducing iron ore fines, both of which have given most promising results.

Keywords

iron ore fine, sludge, recycling

iron ore fine, sludge, recycling