FR2345392A1 - Chlorine dioxide produced by redn. of alkaline chlorate - in acid medium, with recycling of residual effluent gases (SF 30.11.77) - Google Patents

Chlorine dioxide produced by redn. of alkaline chlorate - in acid medium, with recycling of residual effluent gases (SF 30.11.77)

Info

Publication number
FR2345392A1
FR2345392A1 FR7608479A FR7608479A FR2345392A1 FR 2345392 A1 FR2345392 A1 FR 2345392A1 FR 7608479 A FR7608479 A FR 7608479A FR 7608479 A FR7608479 A FR 7608479A FR 2345392 A1 FR2345392 A1 FR 2345392A1
Authority
FR
France
Prior art keywords
recycling
redn
acid medium
effluent gases
chlorine 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.)
Granted
Application number
FR7608479A
Other languages
French (fr)
Other versions
FR2345392B1 (en
Inventor
Alain Caillol
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.)
CHIMIQUES
Original Assignee
CHIMIQUES
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 CHIMIQUES filed Critical CHIMIQUES
Priority to FR7608479A priority Critical patent/FR2345392A1/en
Priority to CA274,325A priority patent/CA1088274A/en
Priority to BR7701726A priority patent/BR7701726A/en
Priority to US05/779,613 priority patent/US4105751A/en
Priority to YU00763/77A priority patent/YU76377A/en
Priority to AU23473/77A priority patent/AU504445B2/en
Priority to FI770897A priority patent/FI770897A/fi
Priority to ES457150A priority patent/ES457150A1/en
Priority to MX168497A priority patent/MX146610A/en
Publication of FR2345392A1 publication Critical patent/FR2345392A1/en
Application granted granted Critical
Publication of FR2345392B1 publication Critical patent/FR2345392B1/fr
Granted 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

ClO2 is produced by redn. of an alkaline chlorate in acid medium by a gaseous or liq. reducing agent, e.g. SO2 or methanol, in a principal reactor, with recycling of residual gaseous effluent to the principal reactor to dil. the ClO2. The residual effluent gases to be recycled are treated with excess reducing agent and sufficient H2O to reduce almost totally the Cl2 contained in the gases to HCl. At least part of the mixt. obtd. is then recycled to the principal reactor. This process allows the stable functioning of installation sproducing ClO2 with recycling of residual effluent gases.
FR7608479A 1976-03-24 1976-03-24 Chlorine dioxide produced by redn. of alkaline chlorate - in acid medium, with recycling of residual effluent gases (SF 30.11.77) Granted FR2345392A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7608479A FR2345392A1 (en) 1976-03-24 1976-03-24 Chlorine dioxide produced by redn. of alkaline chlorate - in acid medium, with recycling of residual effluent gases (SF 30.11.77)
CA274,325A CA1088274A (en) 1976-03-24 1977-03-18 Process and installation for the manufacture of chlorine dioxide
US05/779,613 US4105751A (en) 1976-03-24 1977-03-21 Process and installation for the manufacture of chlorine dioxide
BR7701726A BR7701726A (en) 1976-03-24 1977-03-21 PROCESS AND AN INSTALLATION FOR THE MANUFACTURE OF CHLORINE BIOXIDE
YU00763/77A YU76377A (en) 1976-03-24 1977-03-22 Process for producing chloro dixide
AU23473/77A AU504445B2 (en) 1976-03-24 1977-03-22 Process forthe manufacture chlorine dioxide
FI770897A FI770897A (en) 1976-03-24 1977-03-22
ES457150A ES457150A1 (en) 1976-03-24 1977-03-23 Process and installation for the manufacture of chlorine dioxide
MX168497A MX146610A (en) 1976-03-24 1977-03-24 IMPROVEMENTS IN PROCEDURE AND INSTALLATION TO PRODUCE CHLORINE BIOXIDE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7608479A FR2345392A1 (en) 1976-03-24 1976-03-24 Chlorine dioxide produced by redn. of alkaline chlorate - in acid medium, with recycling of residual effluent gases (SF 30.11.77)

Publications (2)

Publication Number Publication Date
FR2345392A1 true FR2345392A1 (en) 1977-10-21
FR2345392B1 FR2345392B1 (en) 1981-08-07

Family

ID=9170854

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7608479A Granted FR2345392A1 (en) 1976-03-24 1976-03-24 Chlorine dioxide produced by redn. of alkaline chlorate - in acid medium, with recycling of residual effluent gases (SF 30.11.77)

Country Status (1)

Country Link
FR (1) FR2345392A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018670A1 (en) * 1979-04-27 1980-11-12 Metallgesellschaft Ag Process for preparing chlorine dioxide
WO1983001940A1 (en) * 1981-12-02 1983-06-09 Olson, Erik Method for the manufacture of chlorine dioxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018670A1 (en) * 1979-04-27 1980-11-12 Metallgesellschaft Ag Process for preparing chlorine dioxide
WO1983001940A1 (en) * 1981-12-02 1983-06-09 Olson, Erik Method for the manufacture of chlorine dioxide

Also Published As

Publication number Publication date
FR2345392B1 (en) 1981-08-07

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse