GB797987A - Improved catalytic element and method of manufacturing such elements - Google Patents

Improved catalytic element and method of manufacturing such elements

Info

Publication number
GB797987A
GB797987A GB2195055A GB2195055A GB797987A GB 797987 A GB797987 A GB 797987A GB 2195055 A GB2195055 A GB 2195055A GB 2195055 A GB2195055 A GB 2195055A GB 797987 A GB797987 A GB 797987A
Authority
GB
United Kingdom
Prior art keywords
silver
ammonia
solution
catalytic element
aqueous solution
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
GB2195055A
Inventor
Bernard Frederick Adams Lane
Gordon Robert Strickland
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.)
Napier Turbochargers Ltd
Original Assignee
D Napier and Son 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 D Napier and Son Ltd filed Critical D Napier and Son Ltd
Priority to GB2195055A priority Critical patent/GB797987A/en
Publication of GB797987A publication Critical patent/GB797987A/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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
    • B01J37/348—Electrochemical processes, e.g. electrochemical deposition or anodisation
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/48—Silver or gold
    • B01J23/50—Silver

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Toxicology (AREA)
  • Catalysts (AREA)

Abstract

A catalytic element for decomposing fluids, particularly hydrogen peroxide, which comprises a coating of silver on a metallic element, e.g. of nickel or copper wire mesh or "wool" as described in the spraying process of Specification 761,234, is immersed in a solution of ammonia in which silver oxide has been dissolved and whose concentration of silver is such that the metal of the supporting structure is anodic to silver in the solution. A modification of this method is to anodically treat the catalytic element and then to immerse the element in an aqueous solution of ammonia so that the silver oxide dissolves from the surface of the element to provide the appropriate silver content in the aqueous solution of ammonia.ALSO:A catalytic element for decomposing fluids, particularly hydrogen peroxide, which comprises a coating of silver on a metallic element, e.g. of nickel or copper wire mesh or "wool" as described in the spraying process of Specification 761,234, is immersed in a solution of ammonia in which silver oxide has been dissolved and whose concentration of silver is such that the metal of the supporting structure is anodic to silver in the solution. A modification of this method is to treat the catalytic element anodically and then to immerse the element in an aqueous solution of ammonia so that the silver oxide dissolves from the surface of the element to provide the appropriate silver content in the aqueous solution of ammonia.
GB2195055A 1955-07-29 1955-07-29 Improved catalytic element and method of manufacturing such elements Expired GB797987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2195055A GB797987A (en) 1955-07-29 1955-07-29 Improved catalytic element and method of manufacturing such elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2195055A GB797987A (en) 1955-07-29 1955-07-29 Improved catalytic element and method of manufacturing such elements

Publications (1)

Publication Number Publication Date
GB797987A true GB797987A (en) 1958-07-09

Family

ID=10171482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2195055A Expired GB797987A (en) 1955-07-29 1955-07-29 Improved catalytic element and method of manufacturing such elements

Country Status (1)

Country Link
GB (1) GB797987A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150008137A1 (en) * 2013-07-02 2015-01-08 Shu-Chin Chen Method and device of carbon-dioxide decomposition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150008137A1 (en) * 2013-07-02 2015-01-08 Shu-Chin Chen Method and device of carbon-dioxide decomposition

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