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 FR388503ApublicationCriticalpatent/FR388503A/fr
Procédé et appareil perfectionnés pour le traitement des minerais et autres matières par l'action de la chaleur et des agents de réduction et pour l'extraction des produits volatils qui en résultent
Procédé de récupération des métaux et métalloides volatils, surtout du zinc, plomb, arsenic, antimoine, etc., de produits contenant ces métaux et métalloides (scories, minerais, etc.)