Community Research and Development Information Service - CORDIS


Final report on Contract No 7210-AA/144, 323, 424, 608, 822; 1 July 1996 to 30 June 2000.

The aim of the project was to investigate the chemical and physical properties of different production and laboratory sinter and to improve the sinter quality to characterise the quality requirements for high coal injection rates in the blast furnace.

Studies on synthetically prepared material have shown that softening is triggered by the initial formation of melt within the core region of partly reduced iron bearing material. The temperatures at which the deformation of pellets or sinter started do not correspond with the temperatures detected by the differential thermal analysis on single phases. From sinter pot and sinter plant test results it could be confirmed that sinter disintegration can be influenced by its chemical composition. The basicity has a dominant influence on the sinter quality. The sinter degradation decreases as the FeO content increases and the porosity decreases. Results from the melting down tests showed that the reduction of sinter at different temperatures progresses faster as the porosity increases. Further on, the beginning of the melting down temperature increases as the reduction degree increases. Pilot blast furnace trials increased confidence in the validity of the melting down test in evaluating key material parameters and assisted in establishing realistic gas/temperature reducing cycles. The ASAM tests highlighted the importance of gangue composition in determining the sinter's melting/dripping qualities. es.

Additional information

Authors: MÜLHEIMS K, TKS, Duisburg (DE);ROSENPLÄNTER R, TKS, Duisburg (DE);HESS E, IRSID, Maizières-les Metz (FR);LECTARD E, IRSID, Maizières-les Metz (FR);SERT D, IRSID, Maizières-les Metz (FR);PASTORE M, CSM, Rome (IT);TE LINDERT M, CORUS IJmuiden, IJmuiden (NL);MATTHEWS T, CORUS UK, Grangetown (GB)
Bibliographic Reference: EUR 20106 EN (2002), pp.276. Euro: 41.00
Availability: EUR-OP reference: KI-NA-20106-EN-S Available from EUR-OP sales agents. URL:
ISBN: ISBN: 92-894-3155-5
Record Number: 200214584 / Last updated on: 2002-04-08
Original language: en
Available languages: en