Method for processing kieserite concentrates containing...

Details Method for processing kieserite concentrates containing... Method for processing kieserite concentrates containing...

C - Chemistry, Metallurgy

01

F

C01F 5/40 (2006.01) B03C 7/00 (2006.01) B03C 7/12 (2006.01) C01D 3/08 (2006.01)

Patent

CA 2138094

A METHOD FOR PROCESSING KIESERITE CONCENTRATES CONTAINING LANGBEINITE AND ANHYDRITE A process for after-purifying a kieserite mixture pre-concentrated electrostatically across a number of stages is characterized in that the outside air used in the after purification stage is adjusted by dehumidification in a conventional dehumidification plant to an absolute moisture content of 4.5 g/m3, and the kieserite mixture to be separated by triboelectrically charging with said air at a temperature of below 40°C.

MÉTHODE POUR LE TRAITEMENT DE CONCENTRÉS DE MARTINSITE CONTENANT DE LA LANGBEINITE ET DE L'ANHYDRITE Procédé à plusieurs étapes de postpurification pour un mélange de martinsite pré-concentré électrostatiquement, caractérisé par l'utilisation d'air extérieur pour l'étape de postpurification, dont la teneur en humidité est réglée par déshumidification dans une installation de déshumidification ordinaire jusqu'à l'obtention d'une valeur absolue de 4,5 g/m3, et par l'application d'une charge triboélectrique au mélange de martinsite à séparer, alors que cet air est à une température inférieure à 40 degrés C.

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