GB1048694A - Preparation of 1-bromo-1,1-difluoro-ethane - Google Patents
Preparation of 1-bromo-1,1-difluoro-ethaneInfo
- Publication number
- GB1048694A GB1048694A GB27311/63A GB2731163A GB1048694A GB 1048694 A GB1048694 A GB 1048694A GB 27311/63 A GB27311/63 A GB 27311/63A GB 2731163 A GB2731163 A GB 2731163A GB 1048694 A GB1048694 A GB 1048694A
- Authority
- GB
- United Kingdom
- Prior art keywords
- difluoro
- ethane
- bromo
- preparation
- difluoroethane
- 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
-
- 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
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
- A62D1/0057—Polyhaloalkanes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
1 - Bromo - 1,1 - difluoro - ethane is prepared by vapour phase bromination at 350-500 DEG C. of 1,1-difluoroethane followed by cooling the reaction products to below 40 DEG C., removing HBr and unreacted bromine and finally separating the required compound.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR903763A FR1336749A (en) | 1962-07-12 | 1962-07-12 | New extinguishing agent |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1048694A true GB1048694A (en) | 1966-11-16 |
Family
ID=8783042
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27311/63A Expired GB1048694A (en) | 1962-07-12 | 1963-07-10 | Preparation of 1-bromo-1,1-difluoro-ethane |
GB29639/66A Expired GB1048695A (en) | 1962-07-12 | 1963-07-10 | Methods of and apparatus for extinguishing fires |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29639/66A Expired GB1048695A (en) | 1962-07-12 | 1963-07-10 | Methods of and apparatus for extinguishing fires |
Country Status (7)
Country | Link |
---|---|
US (1) | US3276999A (en) |
BE (1) | BE634814A (en) |
DE (2) | DE1593227A1 (en) |
FR (1) | FR1336749A (en) |
GB (2) | GB1048694A (en) |
LU (1) | LU44031A1 (en) |
NL (1) | NL295126A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1132636A (en) * | 1965-09-22 | 1968-11-06 | Montedison Spa | Improvements in or relating to flame-extinguishing compositions |
US3480545A (en) * | 1966-08-17 | 1969-11-25 | Monsanto Res Corp | Method of controlling the spread of fires |
NL7006794A (en) * | 1969-05-16 | 1970-11-18 | ||
US3844354A (en) * | 1973-07-11 | 1974-10-29 | Dow Chemical Co | Halogenated fire extinguishing agent for total flooding system |
US4668407A (en) * | 1983-11-09 | 1987-05-26 | Gerard Mark P | Fire extinguishing composition and method for preparing same |
US5093013A (en) * | 1989-12-11 | 1992-03-03 | Halocarbon Products Corporation | Ozone friendly fire-extinguishing agents |
US5055208A (en) * | 1991-01-02 | 1991-10-08 | Powsus, Inc. | Fire extinguishing compositions |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US866437A (en) * | 1907-01-09 | 1907-09-17 | Edward M Davidson | Fire-extinguishing compound. |
US2021981A (en) * | 1930-06-23 | 1935-11-26 | Gen Motors Corp | Self propelling fire extinguishing charge containing a double halogen hydrocarbon compound |
DE587932C (en) * | 1931-07-01 | 1933-11-10 | Werner Ursum Dr | Fillings for fire extinguishers |
BE444329A (en) * | 1940-11-16 | |||
US2678953A (en) * | 1950-10-14 | 1954-05-18 | Douglas Aircraft Co Inc | Method of making fluorinated organic bromides and resulting new chemical compounds |
US2653130A (en) * | 1951-05-17 | 1953-09-22 | Du Pont | Fire extinguishing composition of cbrf or cfbrcfbr containing cf as a propellant |
US2668419A (en) * | 1951-10-26 | 1954-02-09 | Specialties Dev Corp | Fluid carbon dioxide composition |
US2757212A (en) * | 1955-03-25 | 1956-07-31 | Du Pont | Process of reacting a halogen, fluorine compound and carbon at temperatures above 1500 deg. c |
US2897151A (en) * | 1956-09-07 | 1959-07-28 | Superior Products Co | Vaporizing fire extinguisher fluid |
US2972637A (en) * | 1958-06-19 | 1961-02-21 | Du Pont | Preparation of bromofluoromethanes |
-
0
- NL NL295126D patent/NL295126A/xx unknown
- BE BE634814D patent/BE634814A/xx unknown
-
1962
- 1962-07-12 FR FR903763A patent/FR1336749A/en not_active Expired
-
1963
- 1963-07-09 LU LU44031D patent/LU44031A1/xx unknown
- 1963-07-09 US US293878A patent/US3276999A/en not_active Expired - Lifetime
- 1963-07-10 GB GB27311/63A patent/GB1048694A/en not_active Expired
- 1963-07-10 GB GB29639/66A patent/GB1048695A/en not_active Expired
- 1963-07-11 DE DE19631593227 patent/DE1593227A1/en active Pending
- 1963-07-11 DE DEP32186A patent/DE1278254B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1278254B (en) | 1968-09-19 |
LU44031A1 (en) | 1964-01-09 |
NL295126A (en) | |
GB1048695A (en) | 1966-11-16 |
DE1593227A1 (en) | 1970-07-16 |
FR1336749A (en) | 1963-09-06 |
BE634814A (en) | |
US3276999A (en) | 1966-10-04 |
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