GB2001615A - Decomposition of phosgene - Google Patents
Decomposition of phosgeneInfo
- Publication number
- GB2001615A GB2001615A GB787831562A GB7831562A GB2001615A GB 2001615 A GB2001615 A GB 2001615A GB 787831562 A GB787831562 A GB 787831562A GB 7831562 A GB7831562 A GB 7831562A GB 2001615 A GB2001615 A GB 2001615A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosgene
- water
- decomposition
- gas
- provides
- 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
Links
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical group ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 title abstract 6
- 238000000354 decomposition reaction Methods 0.000 title abstract 2
- 239000002912 waste gas Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
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
Phosgene or phosgene-containing gas are produced as waste gases in industry and have to be treated before being emitted. Treatments to remove or decompose the phosgene have been to wash with alkalis or to pass the waste gas over active carbon sprayed with water. The former provides a further effluent to be worked up and the latter process is easily inactivated by other substances present in the waste gas. The present invention provides a process for the decomposition of phosgene by hydrolysis wherein the phosgene is dispersed in water or water containing an acidic gas.
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 |
|---|---|
| GB2001615A true GB2001615A (en) | 1979-02-07 |
| GB2001615B GB2001615B (en) | 1982-03-31 |
Family
ID=6015331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB787831562A Expired GB2001615B (en) | 1977-07-30 | 1978-07-28 | Process for the decomposition of phosgene |
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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531836A1 (en) * | 1991-09-13 | 1993-03-17 | BASF Aktiengesellschaft | Method for purifying exhaust gas, containing CO2 + HCl + COCl2 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (4)
| 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 |
| DE2344217B2 (en) * | 1973-09-01 | 1977-10-20 | PROCEDURE FOR THE ELIMINATION OF PHOSGENE AND / OR OTHER GASEOUS CHLORINE POLLUTANTS IN EXHAUST GASES | |
| DE2531545C3 (en) * | 1975-07-15 | 1981-10-29 | Basf Ag, 6700 Ludwigshafen | Process for removing phosgene from exhaust gases |
-
1977
- 1977-07-30 DE DE19772734573 patent/DE2734573A1/en not_active Withdrawn
-
1978
- 1978-07-26 CH CH804778A patent/CH635556A5/en not_active IP Right Cessation
- 1978-07-27 LU LU80047A patent/LU80047A1/en unknown
- 1978-07-28 NL NL787808023A patent/NL7808023A/en not_active Application Discontinuation
- 1978-07-28 JP JP9165678A patent/JPS5426958A/en active Pending
- 1978-07-28 GB GB787831562A patent/GB2001615B/en not_active Expired
- 1978-07-28 DK DK335778A patent/DK335778A/en unknown
- 1978-07-28 IT IT26273/78A patent/IT1097778B/en active
- 1978-07-31 BE BE189629A patent/BE869420A/en unknown
- 1978-07-31 FR FR7822575A patent/FR2398516A1/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531836A1 (en) * | 1991-09-13 | 1993-03-17 | BASF Aktiengesellschaft | Method for purifying exhaust gas, containing CO2 + HCl + COCl2 |
Also Published As
| Publication number | Publication date |
|---|---|
| LU80047A1 (en) | 1979-05-15 |
| FR2398516A1 (en) | 1979-02-23 |
| DE2734573A1 (en) | 1979-02-08 |
| CH635556A5 (en) | 1983-04-15 |
| BE869420A (en) | 1979-01-31 |
| DK335778A (en) | 1979-01-31 |
| IT7826273A0 (en) | 1978-07-28 |
| GB2001615B (en) | 1982-03-31 |
| NL7808023A (en) | 1979-02-01 |
| JPS5426958A (en) | 1979-02-28 |
| FR2398516B1 (en) | 1983-05-20 |
| IT1097778B (en) | 1985-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |