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C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B17/00—Sulfur; Compounds thereof
C01B17/48—Sulfur dioxide; Sulfurous acid
C01B17/50—Preparation of sulfur dioxide
C01B17/52—Preparation of sulfur dioxide by roasting sulfides
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FR1110647D1953-11-131954-10-26Procédé pour la récupération de soufre et de dioxyde de soufre à partir de minerais de fer sulfurés
ExpiredFR1110647A
(fr)
Procédé continu pour la production de soufre élémentaire et d'anhydride sulfureux, pratiquement exempts d'arsenie, à partir de minerais pyriteux arsenicaux
Procédé pour l'amélioration de l'économie énergétique dans les appareils destinés à la production de soufre et d'anhydride sulfureux, ou de soufre, ou d'anhydride sulfureux, à partir de minerais pyriteux