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HENRY JEAN MARIE ANTOINE HUGUE
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HENRY JEAN MARIE ANTOINE HUGUE
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Application filed by HENRY JEAN MARIE ANTOINE HUGUEfiledCriticalHENRY JEAN MARIE ANTOINE HUGUE
Application grantedgrantedCritical
Publication of FR362347ApublicationCriticalpatent/FR362347A/en
Improvements to processes for heating, melting or volatilizing various substances or materials applicable in particular to the extraction of metals from their ores
Process for the treatment of sulphurous ores of antimony and arsenic, intended to extract these metals and simultaneously separate the precious metals contained, if any, in the gangue