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FR2297190A1 - Phosgene mfr. by reaction of carbon monoxide and chlorine - in two stages, half the chlorine being added at each stage - Google Patents

Phosgene mfr. by reaction of carbon monoxide and chlorine - in two stages, half the chlorine being added at each stage

Info

Publication number
FR2297190A1
FR2297190A1 FR7501200A FR7501200A FR2297190A1 FR 2297190 A1 FR2297190 A1 FR 2297190A1 FR 7501200 A FR7501200 A FR 7501200A FR 7501200 A FR7501200 A FR 7501200A FR 2297190 A1 FR2297190 A1 FR 2297190A1
Authority
FR
France
Prior art keywords
chlorine
reaction
phosgene
mfr
stages
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
FR7501200A
Other languages
French (fr)
Other versions
FR2297190B1 (en
Inventor
Serge Doubovetzky
Peter Forschner
Francois Montazeau
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.)
TOLOCHIMIE
Original Assignee
TOLOCHIMIE
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 TOLOCHIMIE filed Critical TOLOCHIMIE
Priority to FR7501200A priority Critical patent/FR2297190A1/en
Publication of FR2297190A1 publication Critical patent/FR2297190A1/en
Application granted granted Critical
Publication of FR2297190B1 publication Critical patent/FR2297190B1/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
    • C01B32/00—Carbon; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/70—Compounds containing carbon and sulfur, e.g. thiophosgene
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/80—Phosgene

Landscapes

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

Abstract

Phosgene is made by vapour phase reaction between Cl2 and CO at 50-400 degrees C and 1-10 (3-7) bars pressure in the presence of C by passing the reactants over >=2 successive catalyst beds, with the whole of the CO introduced at the level of the first bed and part of the Cl2 being introduced at each bed level, the molar ratio CO: Cl2 being >1:1 pref. 1-1.1:1. A reaction completion step may be included in the process, to ensure a Cl2 content in the phosgene 200 ppm. The prod. is used in mfr. of isocyanates for prepn. of polyurethanes. The excess CO passing through the first bed acts as carrier gas, and coolant, so that the exothermic heat of reaction is controlled without the use of a separate carrier gas which is lost, or a by-prod. gas which has to be removed.
FR7501200A 1975-01-08 1975-01-08 Phosgene mfr. by reaction of carbon monoxide and chlorine - in two stages, half the chlorine being added at each stage Granted FR2297190A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7501200A FR2297190A1 (en) 1975-01-08 1975-01-08 Phosgene mfr. by reaction of carbon monoxide and chlorine - in two stages, half the chlorine being added at each stage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7501200A FR2297190A1 (en) 1975-01-08 1975-01-08 Phosgene mfr. by reaction of carbon monoxide and chlorine - in two stages, half the chlorine being added at each stage

Publications (2)

Publication Number Publication Date
FR2297190A1 true FR2297190A1 (en) 1976-08-06
FR2297190B1 FR2297190B1 (en) 1977-07-15

Family

ID=9149854

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501200A Granted FR2297190A1 (en) 1975-01-08 1975-01-08 Phosgene mfr. by reaction of carbon monoxide and chlorine - in two stages, half the chlorine being added at each stage

Country Status (1)

Country Link
FR (1) FR2297190A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764308A (en) * 1983-07-28 1988-08-16 Bayer Aktiengesellschaft Process for the production of phosgene with simultaneous generation of steam
US6930202B1 (en) 1998-10-22 2005-08-16 Bayer Aktiengesellschaft Phosgene having low content of carbon tetrachloride
WO2012042130A1 (en) 2010-09-30 2012-04-05 Aet Group Device and process for continuous phosgenation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764308A (en) * 1983-07-28 1988-08-16 Bayer Aktiengesellschaft Process for the production of phosgene with simultaneous generation of steam
US6930202B1 (en) 1998-10-22 2005-08-16 Bayer Aktiengesellschaft Phosgene having low content of carbon tetrachloride
WO2012042130A1 (en) 2010-09-30 2012-04-05 Aet Group Device and process for continuous phosgenation

Also Published As

Publication number Publication date
FR2297190B1 (en) 1977-07-15

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Legal Events

Date Code Title Description
ST Notification of lapse