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GB617979A - Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxide - Google Patents

Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxide

Info

Publication number
GB617979A
GB617979A GB1114646A GB1114646A GB617979A GB 617979 A GB617979 A GB 617979A GB 1114646 A GB1114646 A GB 1114646A GB 1114646 A GB1114646 A GB 1114646A GB 617979 A GB617979 A GB 617979A
Authority
GB
United Kingdom
Prior art keywords
sulphur
sulphuric acid
sulphur dioxide
catalyst
oxidation
Prior art date
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
GB1114646A
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.)
FRANCIS ROBERT HIMSWORTH
Imperial Chemical Industries Ltd
Original Assignee
FRANCIS ROBERT HIMSWORTH
Imperial Chemical Industries Ltd
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 FRANCIS ROBERT HIMSWORTH, Imperial Chemical Industries Ltd filed Critical FRANCIS ROBERT HIMSWORTH
Priority to GB1114646A priority Critical patent/GB617979A/en
Publication of GB617979A publication Critical patent/GB617979A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • 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
    • C01B17/77—Fluidised-bed processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

Sulphur trioxide is obtained by passing a gaseous mixture containing sulphur dioxide and oxygen through a bed of suitable catalyst in particulate form and maintained as an expanded bed. The preferred catalyst is silica gel on which metallic platinum or vanadium pentoxide is supported. A suitable temperature is 380-460 DEG C. The sulphur dioxide may be converted to sulphuric acid or may be absorbed in sulphuric acid to produce acid of higher concentration. If a vanadium pentoxide catalyst is used, steam may be admixed with the initial sulphur dioxide and oxygen so as to produce sulphuric acid or fuming sulphuric acid. Specifications 568,913 and 569,691 (in the Provisional Specification) are referred to.
GB1114646A 1946-04-11 1946-04-11 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxide Expired GB617979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1114646A GB617979A (en) 1946-04-11 1946-04-11 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1114646A GB617979A (en) 1946-04-11 1946-04-11 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxide

Publications (1)

Publication Number Publication Date
GB617979A true GB617979A (en) 1949-02-15

Family

ID=9980873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1114646A Expired GB617979A (en) 1946-04-11 1946-04-11 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxide

Country Status (1)

Country Link
GB (1) GB617979A (en)

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