Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of FR349832ApublicationCriticalpatent/FR349832A/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