GB895624A - Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxideand catalysts therefor - Google Patents

Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxideand catalysts therefor

Info

Publication number
GB895624A
GB895624A GB4067858A GB4067858A GB895624A GB 895624 A GB895624 A GB 895624A GB 4067858 A GB4067858 A GB 4067858A GB 4067858 A GB4067858 A GB 4067858A GB 895624 A GB895624 A GB 895624A
Authority
GB
United Kingdom
Prior art keywords
sulphur
oxidation
trioxideand
relating
sulphur dioxide
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
GB4067858A
Inventor
Phineas Davies
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.)
Imperial Chemical Industries Ltd
Original Assignee
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
Priority to BE560004D priority Critical patent/BE560004A/xx
Priority to FR1181164D priority patent/FR1181164A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4067858A priority patent/GB895624A/en
Priority to NL246176A priority patent/NL121548C/xx
Priority to DEI17377A priority patent/DE1160410B/en
Priority to FR813379A priority patent/FR1250704A/en
Publication of GB895624A publication Critical patent/GB895624A/en
Priority to US350114A priority patent/US3186794A/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
    • C01B17/78—Preparation by contact processes characterised by the catalyst used
    • C01B17/79—Preparation by contact processes characterised by the catalyst used containing vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • 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

Abstract

Catalysts suitable for the oxidation of sulphur dioxide to sulphur trioxide are produced by forming a silica gel containing Na+ and K+ ions from an aqueous Na-K silicate solution and incorporating in the gel a vanadium compound substantially the whole product being dried by heating and thereafter more strongly heated, the compositions and proportions of the reactants being chosen so that the finished catalyst comprises, by weight, 6-10% V2O5, 6-15% K2O, 1,5-6% Na2O and 10-30% SO3. Additional silica, e.g. in the form of kieselguhr, may be incorporated in the catalyst, preferably before the gelling stage.
GB4067858A 1956-08-13 1958-12-17 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxideand catalysts therefor Expired GB895624A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE560004D BE560004A (en) 1956-08-13 1957-08-12
FR1181164D FR1181164A (en) 1956-08-13 1957-08-13 Improvements in the oxidation of sulfur dioxide to sulfur dioxide, and catalysts used for this purpose
GB4067858A GB895624A (en) 1958-12-17 1958-12-17 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxideand catalysts therefor
NL246176A NL121548C (en) 1958-12-17 1959-12-08
DEI17377A DE1160410B (en) 1956-08-13 1959-12-16 Process for the production of catalysts containing vanadium, silica, sodium and potassium for the catalytic oxidation of sulfur dioxide to sulfur trioxide
FR813379A FR1250704A (en) 1958-12-17 1959-12-17 Oxidation catalysts of sulfur dioxide to sulfur trioxide
US350114A US3186794A (en) 1956-08-13 1964-03-06 Oxidation of sulphur dioxide to sulphur trioxide and catalysts therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4067858A GB895624A (en) 1958-12-17 1958-12-17 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxideand catalysts therefor

Publications (1)

Publication Number Publication Date
GB895624A true GB895624A (en) 1962-05-02

Family

ID=10416080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4067858A Expired GB895624A (en) 1956-08-13 1958-12-17 Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxideand catalysts therefor

Country Status (3)

Country Link
FR (1) FR1250704A (en)
GB (1) GB895624A (en)
NL (1) NL121548C (en)

Also Published As

Publication number Publication date
NL121548C (en) 1966-07-15
FR1250704A (en) 1961-01-13

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