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Publication of BE564937ApublicationCriticalpatent/BE564937A/xx
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
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
B01D53/34—Chemical or biological purification of waste gases
B01D53/46—Removing components of defined structure
B01D53/48—Sulfur compounds
B01D53/52—Hydrogen sulfide
B01D53/523—Mixtures of hydrogen sulfide and sulfur oxides