GB1338425A - Process for the preparation of perfluorinated compounds - Google Patents
Process for the preparation of perfluorinated compoundsInfo
- Publication number
- GB1338425A GB1338425A GB2925771A GB2925771A GB1338425A GB 1338425 A GB1338425 A GB 1338425A GB 2925771 A GB2925771 A GB 2925771A GB 2925771 A GB2925771 A GB 2925771A GB 1338425 A GB1338425 A GB 1338425A
- Authority
- GB
- United Kingdom
- Prior art keywords
- perfluoro
- preparation
- olefin
- june
- formula
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 title 1
- 238000005336 cracking Methods 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 2
- 125000002015 acyclic group Chemical group 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 238000000197 pyrolysis Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
- C07C17/367—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms by depolymerisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702031047 DE2031047C3 (de) | 1970-06-24 | Verfahren zur Herstellung cyclischer Perfluorolefine mit 4 bis 6 Ringgliedern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1338425A true GB1338425A (en) | 1973-11-21 |
Family
ID=5774740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2925771A Expired GB1338425A (en) | 1970-06-24 | 1971-06-22 | Process for the preparation of perfluorinated compounds |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3816552A (enExample) |
| BE (1) | BE768850A (enExample) |
| CA (1) | CA943973A (enExample) |
| CH (1) | CH565723A5 (enExample) |
| FR (1) | FR2096789B1 (enExample) |
| GB (1) | GB1338425A (enExample) |
| NL (1) | NL7108425A (enExample) |
| SU (1) | SU477575A3 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220082A (en) * | 1990-10-11 | 1993-06-15 | E. I. Du Pont De Nemours And Company | Process for production of polyfluoroolefins |
| JP4792189B2 (ja) | 2000-02-10 | 2011-10-12 | サウス アフリカン ニュークリア エナージィ コーポレイション リミテッド | フルオロカーボン原料の処理 |
| DE60140516D1 (de) * | 2000-02-10 | 2009-12-31 | 3M Innovative Properties Co | Behandlung von fluorkohlenstoff- ausgangsmaterialien |
| US7003035B2 (en) * | 2002-01-25 | 2006-02-21 | Microsoft Corporation | Video coding methods and apparatuses |
| US6919015B2 (en) * | 2002-12-16 | 2005-07-19 | 3M Innovative Properties Company | Process for manufacturing fluoroolefins |
| GB201010958D0 (en) * | 2010-06-30 | 2010-08-11 | 3M Innovative Properties Co | Process for manufacturing perfluoroolefins by pyrolysis of perfluorocarbons in the presence of hydrogen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2664449A (en) * | 1947-01-06 | 1953-12-29 | William T Miller | Pyrolysis of trifluorochloroethylene polymers |
-
1971
- 1971-06-08 CA CA115,067A patent/CA943973A/en not_active Expired
- 1971-06-18 NL NL7108425A patent/NL7108425A/xx unknown
- 1971-06-21 CH CH903671A patent/CH565723A5/xx not_active IP Right Cessation
- 1971-06-22 BE BE768850A patent/BE768850A/xx unknown
- 1971-06-22 US US00155649A patent/US3816552A/en not_active Expired - Lifetime
- 1971-06-22 GB GB2925771A patent/GB1338425A/en not_active Expired
- 1971-06-23 SU SU1677039A patent/SU477575A3/ru active
- 1971-06-23 FR FR7122874A patent/FR2096789B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2031047B2 (de) | 1977-03-03 |
| SU477575A3 (ru) | 1975-07-15 |
| CA943973A (en) | 1974-03-19 |
| CH565723A5 (enExample) | 1975-08-29 |
| US3816552A (en) | 1974-06-11 |
| DE2031047A1 (enExample) | 1971-12-30 |
| FR2096789A1 (enExample) | 1972-02-25 |
| BE768850A (fr) | 1971-12-22 |
| FR2096789B1 (enExample) | 1975-08-22 |
| NL7108425A (enExample) | 1971-12-28 |
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| GB1228303A (enExample) | ||
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| GB1238632A (enExample) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |