GB583477A - Improvements in or relating to the manufacture of phosgene - Google Patents
Improvements in or relating to the manufacture of phosgeneInfo
- Publication number
- GB583477A GB583477A GB16225/43A GB1622543A GB583477A GB 583477 A GB583477 A GB 583477A GB 16225/43 A GB16225/43 A GB 16225/43A GB 1622543 A GB1622543 A GB 1622543A GB 583477 A GB583477 A GB 583477A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- phosgene
- catalyst
- temperature
- charcoal
- 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.)
- Expired
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
In the production of phosgene by reacting chlorine with carbon monoxide in the presence of a catalyst, the process is conducted under superatmospheric pressure. Pressures of 20-300 say 150 pounds per square inch may be employed, and the temperature should be below 280 DEG C. The catalyst may be an activated charcoal such as activated coconut charcoal. The reaction may be conducted in water-cooled leadlined mild steel tubes. Unlined steel tubes may be used at temperatures below 150 DEG C. Alternatively, the reaction zone may be an annulus packed with catalyst and cooled on both external and internal surfaces. The reaction may be effected in two stages, the first at a temperature not exceeding 280 DEG C and the second at a temperature not exceeding 60 DEG C. The carbon monoxide is preferably employed in slight excess and may be in the form of producer gas or derived from the reaction of oxygen with coke. Liquid phosgene may be recovered from the exit gas by cooling to -40 to -55 DEG C., the tail gases being freed from residual phosgene by charcoal absorption or washing with aqueous caustic alkali.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE469139D BE469139A (en) | 1943-10-04 | ||
| GB16225/43A GB583477A (en) | 1943-10-04 | 1943-10-04 | Improvements in or relating to the manufacture of phosgene |
| FR934429D FR934429A (en) | 1943-10-04 | 1946-10-10 | Manufacture of phosgene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16225/43A GB583477A (en) | 1943-10-04 | 1943-10-04 | Improvements in or relating to the manufacture of phosgene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB583477A true GB583477A (en) | 1946-12-19 |
Family
ID=10073430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16225/43A Expired GB583477A (en) | 1943-10-04 | 1943-10-04 | Improvements in or relating to the manufacture of phosgene |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE469139A (en) |
| FR (1) | FR934429A (en) |
| GB (1) | GB583477A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2847470A (en) * | 1955-11-23 | 1958-08-12 | Texas Co | Manufacture of halocarbonyls |
| US3331873A (en) * | 1965-04-23 | 1967-07-18 | Allied Chem | Removal of chlorine from liquid phosgene with activated carbon |
| US4073806A (en) * | 1975-01-08 | 1978-02-14 | Societe Toulousaine De Produits Chimiques "Tolochimie" | Process for the preparation of phosgene |
| US4231959A (en) | 1978-02-15 | 1980-11-04 | Stauffer Chemical Company | Phosgene manufacture |
| 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 |
| EP1640341A3 (en) * | 2004-08-28 | 2006-09-27 | Bayer MaterialScience AG | Method and device for preparing phosgene |
| DE102007020444A1 (en) | 2007-04-27 | 2008-11-06 | Bayer Materialscience Ag | Process for the oxidation of a hydrogen chloride-containing gas mixture |
| US7612234B2 (en) | 2006-05-23 | 2009-11-03 | Bayer Materialscience Ag | Processes for separating carbon monoxide from a hydrogen chloride-containing gas |
| EP2272890A1 (en) | 2009-07-07 | 2011-01-12 | Bayer MaterialScience AG | Method for making polycarbonate |
| EP3498752A1 (en) | 2017-12-18 | 2019-06-19 | Covestro Deutschland AG | Method for producing a polycarbonate using an organic solvent based on hydrochlorocarbon |
| WO2019121248A1 (en) | 2017-12-18 | 2019-06-27 | Covestro Deutschland Ag | Method for producing a polycarbonate using an organic solvent based on chlorinated hydrocarbons |
| WO2021023690A1 (en) | 2019-08-08 | 2021-02-11 | Covestro Intellectual Property Gmbh & Co. Kg | Process for the preparation of a polycarbonate |
| EP3985047A1 (en) | 2020-10-13 | 2022-04-20 | Covestro Deutschland AG | Method for the preparation of a polycarbonate based on the interfacial process with solvent exchange |
| EP4083106A1 (en) | 2021-04-30 | 2022-11-02 | Covestro Deutschland AG | Method for the preparation of polycarbonate with improved sustainability |
| EP4438586A1 (en) | 2023-03-30 | 2024-10-02 | Covestro Deutschland AG | Sustainable production of bisphenol-a for the production of polycarbonate |
-
0
- BE BE469139D patent/BE469139A/xx unknown
-
1943
- 1943-10-04 GB GB16225/43A patent/GB583477A/en not_active Expired
-
1946
- 1946-10-10 FR FR934429D patent/FR934429A/en not_active Expired
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2847470A (en) * | 1955-11-23 | 1958-08-12 | Texas Co | Manufacture of halocarbonyls |
| US3331873A (en) * | 1965-04-23 | 1967-07-18 | Allied Chem | Removal of chlorine from liquid phosgene with activated carbon |
| US4073806A (en) * | 1975-01-08 | 1978-02-14 | Societe Toulousaine De Produits Chimiques "Tolochimie" | Process for the preparation of phosgene |
| US4231959A (en) | 1978-02-15 | 1980-11-04 | Stauffer Chemical Company | Phosgene manufacture |
| 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 |
| EP1640341A3 (en) * | 2004-08-28 | 2006-09-27 | Bayer MaterialScience AG | Method and device for preparing phosgene |
| US7442835B2 (en) | 2004-08-28 | 2008-10-28 | Bayer Materialscience Ag | Process and apparatus for the production of phosgene |
| US7612234B2 (en) | 2006-05-23 | 2009-11-03 | Bayer Materialscience Ag | Processes for separating carbon monoxide from a hydrogen chloride-containing gas |
| EP1992592A2 (en) | 2007-04-27 | 2008-11-19 | Bayer MaterialScience AG | Method for oxidising a gas mixture containing hydrogen chloride |
| DE102007020444A1 (en) | 2007-04-27 | 2008-11-06 | Bayer Materialscience Ag | Process for the oxidation of a hydrogen chloride-containing gas mixture |
| EP2272890A1 (en) | 2009-07-07 | 2011-01-12 | Bayer MaterialScience AG | Method for making polycarbonate |
| DE102009032020A1 (en) | 2009-07-07 | 2011-01-13 | Bayer Materialscience Ag | Process for the production of polycarbonate |
| US8173762B2 (en) | 2009-07-07 | 2012-05-08 | Bayer Materialscience Ag | Process for the preparation of polycarbonate |
| WO2019121240A1 (en) | 2017-12-18 | 2019-06-27 | Covestro Deutschland Ag | Method for producing a polycarbonate using an organic solvent based on chlorohydrocarbon |
| EP3498752A1 (en) | 2017-12-18 | 2019-06-19 | Covestro Deutschland AG | Method for producing a polycarbonate using an organic solvent based on hydrochlorocarbon |
| WO2019121248A1 (en) | 2017-12-18 | 2019-06-27 | Covestro Deutschland Ag | Method for producing a polycarbonate using an organic solvent based on chlorinated hydrocarbons |
| WO2021023690A1 (en) | 2019-08-08 | 2021-02-11 | Covestro Intellectual Property Gmbh & Co. Kg | Process for the preparation of a polycarbonate |
| EP3985047A1 (en) | 2020-10-13 | 2022-04-20 | Covestro Deutschland AG | Method for the preparation of a polycarbonate based on the interfacial process with solvent exchange |
| EP4083106A1 (en) | 2021-04-30 | 2022-11-02 | Covestro Deutschland AG | Method for the preparation of polycarbonate with improved sustainability |
| WO2022229245A1 (en) | 2021-04-30 | 2022-11-03 | Covestro Deutschland Ag | Process for producing polycarbonate with improved sustainability |
| EP4438586A1 (en) | 2023-03-30 | 2024-10-02 | Covestro Deutschland AG | Sustainable production of bisphenol-a for the production of polycarbonate |
| WO2024200619A1 (en) | 2023-03-30 | 2024-10-03 | Covestro Deutschland Ag | Sustainable preparation of bisphenol-a for the production of polycarbonate |
Also Published As
| Publication number | Publication date |
|---|---|
| BE469139A (en) | |
| FR934429A (en) | 1948-05-21 |
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