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HELMUT CRONJAGER
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HELMUT CRONJAGER
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Application filed by HELMUT CRONJAGERfiledCriticalHELMUT CRONJAGER
Priority to ES438934ApriorityCriticalpatent/ES438934A1/es
Publication of ES438934A1publicationCriticalpatent/ES438934A1/es
Procedimiento para la obtencion de metales no ferreos a par-tir de minerales sulfurados complejos de base piritica que contengan cobre, plomo, cinc, plata y oro