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GRILLAGE SUPERFICIEL [1 record]

Record 1 2000-08-09

English

Subject field(s)
  • Mineral Processing (Metallurgy)
  • Processing of Mineral Products
DEF

Rapid removal of sulfur from ore by having finely divided sulfide mineral fall through a heated oxidizing atmosphere.

French

Domaine(s)
  • Minéralurgie (Métallurgie)
  • Préparation des produits miniers
CONT

Les techniques les plus récentes effectuent le grillage éclair (flash roasting): les poussières de pyrites sont injectées par le haut d'un réacteur chauffé à 1000 °C et grillées en suspension à l'aide d'un courant d'air secondaire entrant par le bas. [...] Le procédé flash roasting fut mis au point pour l'utilisation des pyrites de flottation.

OBS

grillage: Opération consistant à chauffer, dans un courant d'air, un minerai, notamment un sulfure, pour en provoquer l'oxydation.

OBS

grillage superficiel : Int. Dict. of Metallurgy..., Cagnaci.

Spanish

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