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.)
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BASF SE
Original Assignee
Badische Anilin and Sodafabrik AG
Publication date
Application grantedgrantedCritical
Publication of CA558589ApublicationCriticalpatent/CA558589A/fr
Improvements inthe production of gases containing sulphur dioxide by stepwise roasting of materials containing roastable sulphur in addition to arsenic in fluidised layers withthe recovery of roasting residues practically free from arsenic