GB2415693A - Chlorine Dioxide Generation - Google Patents

Chlorine Dioxide Generation Download PDF

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Publication number
GB2415693A
GB2415693A GB0422862A GB0422862A GB2415693A GB 2415693 A GB2415693 A GB 2415693A GB 0422862 A GB0422862 A GB 0422862A GB 0422862 A GB0422862 A GB 0422862A GB 2415693 A GB2415693 A GB 2415693A
Authority
GB
United Kingdom
Prior art keywords
chlorine dioxide
reaction chamber
reagent
fluid
stream
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.)
Granted
Application number
GB0422862A
Other versions
GB2415693B (en
GB0422862D0 (en
Inventor
Michael John Hawker
Timothy Derek Allen
Paul Swinney
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.)
Tristel Solutions Ltd
Original Assignee
Tristel Co Ltd
Tristel Solutions Ltd
Tristel Technologies 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 claimed from GBGB0317155.0A external-priority patent/GB0317155D0/en
Application filed by Tristel Co Ltd, Tristel Solutions Ltd, Tristel Technologies Ltd filed Critical Tristel Co Ltd
Publication of GB0422862D0 publication Critical patent/GB0422862D0/en
Publication of GB2415693A publication Critical patent/GB2415693A/en
Application granted granted Critical
Publication of GB2415693B publication Critical patent/GB2415693B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
    • A61L2/0082—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using chemical substances
    • A61L2/0088—Liquid substances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26—Accessories or devices or components used for biocidal treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C01B11/023—Preparation from chlorites or chlorates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C01B11/023—Preparation from chlorites or chlorates
    • C01B11/024—Preparation from chlorites or chlorates from chlorites
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Epidemiology (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

A method of producing a stream of aqueous chlorine dioxide sterilizing fluid suitable for use in sterilizing medical and dental equipment or for wound irrigation or skin asepsis is described. Steps are: pumping fluid portions of a first reagent and a second reagent into the proximal end of an elongate reaction chamber (24) to form a reaction mixture, the reagents being selected to react together to form aqueous chlorine dioxide; providing a stream of water around or adjacent to the distal end of the reaction chamber (24); continuing to pump fluid portions of said reagents so as to cause the reagent mixture to travel through the reaction chamber and then into the stream of water to form a stream of aqueous chlorine dioxide sterilizing fluid; wherein the pumping rates and the internal dimensions of the elongate reaction chamber (24) are selected so that the reaction to form chlorine dioxide is substantially complete when the reagent mixture exits the reaction chamber (24); and continuing pumping fluid portions of said reagents until a desired quantity of said sterilizing fluid has been produced; wherein the pumping of each reagent is carried out by means of a diaphragm pump (90,92) or a piston pump via a pressure-control valve (32,34) so that each fluid portion is pumped at substantially constant pressure.

Description

GB 2415693 A continuation (72) Inventor(s): Michael John Hawker Timothy
Derek Allen Paul Swinney (74) Agent and/or Address for Service: Dummett Copp The Square, Martlesham Heath, IPSWICH, Suffolk, IP5 3SL, United Kingdom
GB0422862A 2003-07-23 2004-07-23 Chlorine Dioxide Generation Expired - Fee Related GB2415693B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0317155.0A GB0317155D0 (en) 2003-07-23 2003-07-23 Chlorine dioxide generation
PCT/GB2004/003203 WO2005011759A1 (en) 2003-07-23 2004-07-23 Chlorine dioxide generation

Publications (3)

Publication Number Publication Date
GB0422862D0 GB0422862D0 (en) 2004-11-17
GB2415693A true GB2415693A (en) 2006-01-04
GB2415693B GB2415693B (en) 2007-04-11

Family

ID=33462985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0422862A Expired - Fee Related GB2415693B (en) 2003-07-23 2004-07-23 Chlorine Dioxide Generation

Country Status (1)

Country Link
GB (1) GB2415693B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534952A (en) * 1984-02-24 1985-08-13 Erco Industries Limited Small scale generation of chlorine dioxide for water treatment
US6007772A (en) * 1994-10-06 1999-12-28 Green; Bruce Philip Cold sterilant solution
US6051135A (en) * 1996-02-23 2000-04-18 Water Technologies Limited Apparatus for making aqueous chlorine dioxide and apparatus for treating water with aqueous chlorine dioxide
WO2003000586A1 (en) * 2001-06-25 2003-01-03 Akzo Nobel N.V. Process for producing chlorine dioxide
EP1310263A1 (en) * 2001-11-09 2003-05-14 Chemische Fabrik Dr. Weigert Gmbh & Co.Kg. Process and kit for machine cleaning and disinfecting medical instruments

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534952A (en) * 1984-02-24 1985-08-13 Erco Industries Limited Small scale generation of chlorine dioxide for water treatment
US6007772A (en) * 1994-10-06 1999-12-28 Green; Bruce Philip Cold sterilant solution
US6051135A (en) * 1996-02-23 2000-04-18 Water Technologies Limited Apparatus for making aqueous chlorine dioxide and apparatus for treating water with aqueous chlorine dioxide
WO2003000586A1 (en) * 2001-06-25 2003-01-03 Akzo Nobel N.V. Process for producing chlorine dioxide
EP1310263A1 (en) * 2001-11-09 2003-05-14 Chemische Fabrik Dr. Weigert Gmbh & Co.Kg. Process and kit for machine cleaning and disinfecting medical instruments

Also Published As

Publication number Publication date
GB2415693B (en) 2007-04-11
GB0422862D0 (en) 2004-11-17

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110723