FR2398516A1 - PHOSGENE DECOMPOSITION PROCESS - Google Patents

PHOSGENE DECOMPOSITION PROCESS

Info

Publication number
FR2398516A1
FR2398516A1 FR7822575A FR7822575A FR2398516A1 FR 2398516 A1 FR2398516 A1 FR 2398516A1 FR 7822575 A FR7822575 A FR 7822575A FR 7822575 A FR7822575 A FR 7822575A FR 2398516 A1 FR2398516 A1 FR 2398516A1
Authority
FR
France
Prior art keywords
phosgene
decomposition process
phosgene decomposition
hydrolysis
column
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
FR7822575A
Other languages
French (fr)
Other versions
FR2398516B1 (en
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of FR2398516A1 publication Critical patent/FR2398516A1/en
Application granted granted Critical
Publication of FR2398516B1 publication Critical patent/FR2398516B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/35—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by hydrolysis
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/37—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by reduction, e.g. hydrogenation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B01D53/70—Organic halogen compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Procédé de décomposition de phosgène par hydrolyse. Ce procédé est caractérisé en ce que Ion disperse le phosgène dans de l'eau, par exemple à contre-courant dans la colonne 1, par une plaque frittée 2. Application au traitement de gaz résiduaires provenant de synthèses chimiques.Process for decomposing phosgene by hydrolysis. This process is characterized in that ion disperses the phosgene in water, for example against the current in column 1, by a sintered plate 2. Application to the treatment of waste gases originating from chemical syntheses.

FR7822575A 1977-07-30 1978-07-31 PHOSGENE DECOMPOSITION PROCESS Granted FR2398516A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772734573 DE2734573A1 (en) 1977-07-30 1977-07-30 PROCESS FOR THE DECOMPOSITION OF PHOSGENE

Publications (2)

Publication Number Publication Date
FR2398516A1 true FR2398516A1 (en) 1979-02-23
FR2398516B1 FR2398516B1 (en) 1983-05-20

Family

ID=6015331

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822575A Granted FR2398516A1 (en) 1977-07-30 1978-07-31 PHOSGENE DECOMPOSITION PROCESS

Country Status (10)

Country Link
JP (1) JPS5426958A (en)
BE (1) BE869420A (en)
CH (1) CH635556A5 (en)
DE (1) DE2734573A1 (en)
DK (1) DK335778A (en)
FR (1) FR2398516A1 (en)
GB (1) GB2001615B (en)
IT (1) IT1097778B (en)
LU (1) LU80047A1 (en)
NL (1) NL7808023A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130427A1 (en) * 1991-09-13 1993-03-18 Basf Ag CONTINUOUS METHOD FOR PURIFYING AN EXHAUST GAS consisting of CO (DOWN ARROW) 2 (DOWN ARROW) + HCL + COCL (DOWN ARROW) 2 (DOWN ARROW)
CN105289247B (en) * 2015-10-20 2017-09-15 安徽广信农化股份有限公司 A kind of phosgene recovery method of stearyl chloride

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB752460A (en) * 1953-01-20 1956-07-11 Bayer Ag Process for the decomposition of phosgene
FR1478891A (en) * 1965-05-06 1967-04-28 Allied Chem Process for washing out phosgene contained in gaseous products
DE2344217A1 (en) * 1973-09-01 1975-03-27 Basf Ag Combustion process for removal of phosgene - by feeding waste gases into stable flame from air-inflammable gas mixts.
FR2317959A1 (en) * 1975-07-15 1977-02-11 Basf Ag PROCESS FOR REMOVING PHOSGENE FROM RESIDUAL GASES

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB752460A (en) * 1953-01-20 1956-07-11 Bayer Ag Process for the decomposition of phosgene
FR1478891A (en) * 1965-05-06 1967-04-28 Allied Chem Process for washing out phosgene contained in gaseous products
DE2344217A1 (en) * 1973-09-01 1975-03-27 Basf Ag Combustion process for removal of phosgene - by feeding waste gases into stable flame from air-inflammable gas mixts.
FR2317959A1 (en) * 1975-07-15 1977-02-11 Basf Ag PROCESS FOR REMOVING PHOSGENE FROM RESIDUAL GASES

Also Published As

Publication number Publication date
DE2734573A1 (en) 1979-02-08
GB2001615B (en) 1982-03-31
GB2001615A (en) 1979-02-07
JPS5426958A (en) 1979-02-28
FR2398516B1 (en) 1983-05-20
BE869420A (en) 1979-01-31
IT7826273A0 (en) 1978-07-28
IT1097778B (en) 1985-08-31
DK335778A (en) 1979-01-31
NL7808023A (en) 1979-02-01
CH635556A5 (en) 1983-04-15
LU80047A1 (en) 1979-05-15

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Legal Events

Date Code Title Description
ST Notification of lapse