GB638031A - Improvements in or relating to the manufacture of catalysts - Google Patents

Improvements in or relating to the manufacture of catalysts

Info

Publication number
GB638031A
GB638031A GB1848647A GB1848647A GB638031A GB 638031 A GB638031 A GB 638031A GB 1848647 A GB1848647 A GB 1848647A GB 1848647 A GB1848647 A GB 1848647A GB 638031 A GB638031 A GB 638031A
Authority
GB
United Kingdom
Prior art keywords
silica gel
sulphur
vanadium
kneading
baking
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
GB1848647A
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.)
Chemical Industries Ltd
African Explosives and Chemical Industries Ltd
Original Assignee
Chemical Industries Ltd
African Explosives and 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 Chemical Industries Ltd, African Explosives and Chemical Industries Ltd filed Critical Chemical Industries Ltd
Priority to GB1848647A priority Critical patent/GB638031A/en
Publication of GB638031A publication Critical patent/GB638031A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01B17/78—Preparation by contact processes characterised by the catalyst used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

A catalyst of high mechanical strength and porosity for use in the oxidation of sulphur dioxide to sulphur trioxide is prepared by grinding a mixture of a silica gel impregnated with a vanadium compound which has been subjected to baking in the presence of acid, with finely-divided sulphur, adding water and kneading, shaping, as by moulding, pelleting or extrusion into a suitable form, drying and removing the sulphur by ignition or sublimation at high temperature. The vanadium-containing silica gel may be made by mixing silica gel with a solution of a vanadium compound, e.g. potassium vanadate, acidifying with sulphuric acid, kneading and baking. Alternatively, the vanadium-containing silica gel may comprise the spent product of a previous catalytic operation. Specification 439,237 is referred to.
GB1848647A 1947-07-11 1947-07-11 Improvements in or relating to the manufacture of catalysts Expired GB638031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1848647A GB638031A (en) 1947-07-11 1947-07-11 Improvements in or relating to the manufacture of catalysts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1848647A GB638031A (en) 1947-07-11 1947-07-11 Improvements in or relating to the manufacture of catalysts

Publications (1)

Publication Number Publication Date
GB638031A true GB638031A (en) 1950-05-31

Family

ID=10113248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1848647A Expired GB638031A (en) 1947-07-11 1947-07-11 Improvements in or relating to the manufacture of catalysts

Country Status (1)

Country Link
GB (1) GB638031A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091547B (en) * 1956-08-13 1960-10-27 Ici Ltd Process for the production of catalysts for the oxidation of sulfur dioxide to sulfur trioxide
DE1160410B (en) * 1956-08-13 1964-01-02 Ici Ltd Process for the production of catalysts containing vanadium, silica, sodium and potassium for the catalytic oxidation of sulfur dioxide to sulfur trioxide
US3216953A (en) * 1961-08-25 1965-11-09 Saint Gobain Method of making vanadium oxide-potassium oxide catalysts of selected porosity
US3448061A (en) * 1965-11-11 1969-06-03 Hoechst Ag Process for the manufacture of catalysts supported on carriers of large dimensions
US4929586A (en) * 1988-06-09 1990-05-29 W. R. Grace & Co.-Conn. Catalysts for selective catalytic reduction DeNOx technology

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091547B (en) * 1956-08-13 1960-10-27 Ici Ltd Process for the production of catalysts for the oxidation of sulfur dioxide to sulfur trioxide
DE1160410B (en) * 1956-08-13 1964-01-02 Ici Ltd Process for the production of catalysts containing vanadium, silica, sodium and potassium for the catalytic oxidation of sulfur dioxide to sulfur trioxide
US3216953A (en) * 1961-08-25 1965-11-09 Saint Gobain Method of making vanadium oxide-potassium oxide catalysts of selected porosity
US3448061A (en) * 1965-11-11 1969-06-03 Hoechst Ag Process for the manufacture of catalysts supported on carriers of large dimensions
US4929586A (en) * 1988-06-09 1990-05-29 W. R. Grace & Co.-Conn. Catalysts for selective catalytic reduction DeNOx technology

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