GB1044045A - Process for the preparation of fluorochloromethanes - Google Patents
Process for the preparation of fluorochloromethanesInfo
- Publication number
- GB1044045A GB1044045A GB27890/63A GB2789063A GB1044045A GB 1044045 A GB1044045 A GB 1044045A GB 27890/63 A GB27890/63 A GB 27890/63A GB 2789063 A GB2789063 A GB 2789063A GB 1044045 A GB1044045 A GB 1044045A
- Authority
- GB
- United Kingdom
- Prior art keywords
- products
- cf2cl2
- cfcl3
- catalyst
- operated
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Fluorochloromethanes are obtained by the catalytic reaction between methane, chlorine and hydrogen fluoride in two different zones, one operated at 350-500 DEG C., where mainly chlorination occurs, and the other operated at 200-350 DEG C. where mainly fluorination occurs, either zone coming first; in the presence of a gaseous recycling mixture comprising one or more chlorinated or chlorofluorinated compounds which are intermediates, main products or by-products. The higher temperature zone may contain active carbon and/or a halide of a metal of variable valency as catalyst, and the lower temperature zone may contain a metal oxide or salt as catalyst. Specified products for recycle are CCl4, CHCl3, CH2Cl2, CH3Cl, CFCl3, CF2Cl2, CF3Cl, CHFCl2, CHF2Cl, C2Cl4, C2Cl6 and C2HCl3. The main recovered products in examples are CF2Cl2 and CFCl3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1439362 | 1962-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1044045A true GB1044045A (en) | 1966-09-28 |
Family
ID=11145028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27890/63A Expired GB1044045A (en) | 1962-07-17 | 1963-07-15 | Process for the preparation of fluorochloromethanes |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT259533B (en) |
| BE (1) | BE635068A (en) |
| CH (1) | CH456555A (en) |
| DE (1) | DE1289839C2 (en) |
| DK (1) | DK106668C (en) |
| ES (1) | ES290036A1 (en) |
| FR (1) | FR1367087A (en) |
| GB (1) | GB1044045A (en) |
| NL (2) | NL295414A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1026291B (en) * | 1952-06-12 | 1958-03-20 | Nat Smelting Co Ltd | Process for the production of difluorodichloromethane |
-
0
- NL NL136585D patent/NL136585C/xx active
-
1963
- 1963-07-04 CH CH827663A patent/CH456555A/en unknown
- 1963-07-12 DE DE1963S0086150 patent/DE1289839C2/en not_active Expired
- 1963-07-15 GB GB27890/63A patent/GB1044045A/en not_active Expired
- 1963-07-15 ES ES290036A patent/ES290036A1/en not_active Expired
- 1963-07-16 DK DK339463AA patent/DK106668C/en active
- 1963-07-16 FR FR941662A patent/FR1367087A/en not_active Expired
- 1963-07-17 NL NL295414D patent/NL295414A/xx unknown
- 1963-07-17 AT AT571663A patent/AT259533B/en active
- 1963-07-17 BE BE635068D patent/BE635068A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL136585C (en) | 1900-01-01 |
| NL295414A (en) | 1965-04-26 |
| DK106668C (en) | 1967-03-06 |
| DE1289839C2 (en) | 1975-02-20 |
| BE635068A (en) | 1964-01-17 |
| ES290036A1 (en) | 1963-08-16 |
| CH456555A (en) | 1968-07-31 |
| AT259533B (en) | 1968-01-25 |
| FR1367087A (en) | 1964-07-17 |
| DE1289839B (en) | 1969-02-27 |
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