Chapter

Improvement on the Operation Management System of Vertical Pressure Filters

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Abstract

Introduction Polishing Filtration Development Results Conclusion

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Chapter
Alunorte started operation in 1995 with a design production capacity of 1.1 Mtpy. Since then the plant was expanded three times and consists today of seven production lines with a total production capacity of close to 6.3 Mtpy. Expansion 3 included the process lines 6 and 7. The lines were commissioned in 2008 and reached their nominal production capacity after a short startup phase. In Expansion 3 a number of new technology developments were consolidated, such as the bauxite transport by pipeline, an improved precipitation concept and others. The impact of the process modifications applied in lines 6 and 7 are discussed in comparison to the previous lines with regard to effects on production volume, productivity, alumina quality and availability. However, a number of challenges are associated with the operation of a plant of the size of Alunorte which has grown very fast: the management of seven process lines, the operation of the plant with a very young organization and strong demand for training.
Tradução e Revisão Técnica Verônica Calado
  • Douglas C. Montgomery
  • George C. Runger
Alunorte Expansion 3 - The New Lines Added to Reach 6.3 Million Tons per Year” In Light Metals
  • A Daryush
  • Khoshneviss