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Chemiebau Dr A Zieren GmbH and KG
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Chemiebau Dr A Zieren GmbH and KG
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Application filed by Chemiebau Dr A Zieren GmbH and KGfiledCriticalChemiebau Dr A Zieren GmbH and KG
Publication of ES272385A1publicationCriticalpatent/ES272385A1/es
Procedimiento para la calcinacion en capas de remolinos, por el sistema de escalones, de minerales de hierro sulfuroso, obteniendo residuos de grano grueso, que se pueden formar por si solos por aglutinacion y lixiviacion