GB8616122D0 - Valorization - Google Patents
ValorizationInfo
- Publication number
- GB8616122D0 GB8616122D0 GB868616122A GB8616122A GB8616122D0 GB 8616122 D0 GB8616122 D0 GB 8616122D0 GB 868616122 A GB868616122 A GB 868616122A GB 8616122 A GB8616122 A GB 8616122A GB 8616122 D0 GB8616122 D0 GB 8616122D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- valorization
- bromination
- prebromination
- underbrominated
- perbrominated
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/22—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of halogens; by substitution of halogen atoms by other halogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Underbrominated products which are difficult to isolate from the solutions in which they are present are perbrominated by performing an additional bromination in the presence of a bromination catalyst and refluxing the mixture until prebromination is complete.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878719509A GB8719509D0 (en) | 1986-07-02 | 1987-08-18 | Aeration device for liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8510162A FR2584394B1 (en) | 1985-07-03 | 1985-07-03 | PROCESS FOR VALUATING IN THE FORM OF PERBROMOUS PRODUCTS OF SUB-BROMINATED PRODUCTS OBTAINED IN SOLUTIONS |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8616122D0 true GB8616122D0 (en) | 1986-08-06 |
GB2177399A GB2177399A (en) | 1987-01-21 |
GB2177399B GB2177399B (en) | 1989-07-19 |
Family
ID=9320928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8616122A Expired GB2177399B (en) | 1985-07-03 | 1986-07-02 | Process for the valorization, in the form of perbrominated products, of underbrominated products produced as solutions |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS6210035A (en) |
BE (1) | BE905039A (en) |
CH (1) | CH666677A5 (en) |
DE (1) | DE3622235A1 (en) |
ES (1) | ES2000304A6 (en) |
FR (1) | FR2584394B1 (en) |
GB (1) | GB2177399B (en) |
IL (1) | IL79285A0 (en) |
IT (1) | IT1190141B (en) |
NL (1) | NL8601648A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL80391A (en) * | 1986-10-22 | 1992-03-29 | Bromine Compounds Ltd | Process for the preparation of decabromodiphenyl ether with improved thermal stability |
IL80390A (en) * | 1986-10-22 | 1992-06-21 | Bromine Compounds Ltd | Process for the preparation of decabromodiphenyl ether |
US20080058558A1 (en) * | 2006-08-29 | 2008-03-06 | Albemarle Corporation | Preparation of decabromodiphenyl oxide |
WO2008027778A1 (en) * | 2006-08-29 | 2008-03-06 | Albemarle Corporation | Preparation of high assay decabromodiphenyl oxide |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3763248A (en) * | 1971-03-02 | 1973-10-02 | Ethyl Corp | Process for production of poly brominated aromatics |
US3833674A (en) * | 1972-08-24 | 1974-09-03 | Ethyl Corp | Recovery of brominated biphenyl |
JPS5239638A (en) * | 1975-08-25 | 1977-03-28 | Toyo Soda Mfg Co Ltd | Process for preparation of decabromobiphenylether |
GB1472383A (en) * | 1976-01-23 | 1977-05-04 | Isc Chem Ltd | Bromination of diphenyl oxide |
DD137803A3 (en) * | 1976-12-13 | 1979-09-26 | Hans Baltz | PROCESS FOR THE PREPARATION OF HEXABROMBENZOL |
DD128749A1 (en) * | 1976-12-13 | 1977-12-07 | Wolfgang Baumann | PROCESS FOR THE PREPARATION OF HEXABROMBENZOL |
US4521633A (en) * | 1983-05-19 | 1985-06-04 | The Dow Chemical Company | Bromination process |
-
1985
- 1985-07-03 FR FR8510162A patent/FR2584394B1/en not_active Expired
-
1986
- 1986-06-24 NL NL8601648A patent/NL8601648A/en not_active Application Discontinuation
- 1986-06-27 IT IT20961/86A patent/IT1190141B/en active
- 1986-06-30 IL IL79285A patent/IL79285A0/en unknown
- 1986-07-02 DE DE19863622235 patent/DE3622235A1/en active Granted
- 1986-07-02 GB GB8616122A patent/GB2177399B/en not_active Expired
- 1986-07-02 BE BE0/216867A patent/BE905039A/en not_active IP Right Cessation
- 1986-07-03 JP JP61157144A patent/JPS6210035A/en active Pending
- 1986-07-03 ES ES8600100A patent/ES2000304A6/en not_active Expired
- 1986-07-03 CH CH2694/86A patent/CH666677A5/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS6210035A (en) | 1987-01-19 |
IL79285A0 (en) | 1986-09-30 |
DE3622235A1 (en) | 1987-01-15 |
IT8620961A0 (en) | 1986-06-27 |
IT1190141B (en) | 1988-02-10 |
BE905039A (en) | 1987-01-02 |
FR2584394A1 (en) | 1987-01-09 |
NL8601648A (en) | 1987-02-02 |
GB2177399A (en) | 1987-01-21 |
DE3622235C2 (en) | 1989-10-19 |
GB2177399B (en) | 1989-07-19 |
IT8620961A1 (en) | 1987-12-27 |
ES2000304A6 (en) | 1988-02-16 |
CH666677A5 (en) | 1988-08-15 |
FR2584394B1 (en) | 1987-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |