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.)
Expired
Application number
GB14345/59A
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.)
Chemiebau Dr A Zieren GmbH and KG
Original Assignee
Chemiebau Dr A Zieren GmbH and KG
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Filing date
Publication date
Application filed by Chemiebau Dr A Zieren GmbH and KGfiledCriticalChemiebau Dr A Zieren GmbH and KG
Publication of GB846678ApublicationCriticalpatent/GB846678A/en
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B17/00—Sulfur; Compounds thereof
C01B17/69—Sulfur trioxide; Sulfuric acid
C01B17/74—Preparation
C01B17/76—Preparation by contact processes
C01B17/765—Multi-stage SO3-conversion
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Inorganic Chemistry
(AREA)
Catalysts
(AREA)
Exhaust Gas Treatment By Means Of Catalyst
(AREA)
Abstract
Catalytic oxidation of SO2 to SO3 is effected (e.g with a conventional vanadium catalyst) by passing the SO2 horizontally through a vertical layer of a minor portion of catalyst and thereafter through the major portion of catalyst; the said minor portion acts as a filter in removing, e.g. silicate ash present as a fire dust in the SO2.
GB14345/59A1958-04-301959-04-27Process for the catalytic oxidation of sulphur dioxide to sulphur trioxide
ExpiredGB846678A
(en)
Procedure for the catalytic oxidation of sulfurous anhydride (so2) in sulfuric anhydride (so3) (Machine-translation by Google Translate, not legally binding)