ZA846600B - Process for the manufacture of trans-1.1.2.3.4.4-hexabromo-2-butene(hbb)by the bromination of diacetylene - Google Patents
Process for the manufacture of trans-1.1.2.3.4.4-hexabromo-2-butene(hbb)by the bromination of diacetyleneInfo
- Publication number
- ZA846600B ZA846600B ZA846600A ZA846600A ZA846600B ZA 846600 B ZA846600 B ZA 846600B ZA 846600 A ZA846600 A ZA 846600A ZA 846600 A ZA846600 A ZA 846600A ZA 846600 B ZA846600 B ZA 846600B
- Authority
- ZA
- South Africa
- Prior art keywords
- diacetylene
- degrees
- bar
- temperature
- pressure
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/013—Preparation of halogenated hydrocarbons by addition of halogens
- C07C17/02—Preparation of halogenated hydrocarbons by addition of halogens to unsaturated hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
Abstract
1. A process for the production of trans 1,1,2,3,4,4-hexabromo-2-butene by bromination of diacetylene, characterised in that the diacetylene from the hydrocarbon residue arising in the acetylene recovery operation is dissolved at a temperature of -20 degrees C to + 20 degrees C and a pressure of 1 to 2 bar in a solvent containing a hydroxyl group, initially a mixture rich in vinylacetylene is separated off in a first desorption stage at a temperature of 0 to 30 degrees C and a pressure of 1 to 2 bar with an inert gas, then a gas mixture rich in diacetylene is desorbed in a second desorption stage at a temperature of 0 to 30 degrees C and a pressure of 1 to 2 bar with an inert gas, this diacetylene-rich gas mixture is brominated in a reactor in which excess bromine dissolved in a halohydrocarbon has previously been placed, water optionally being added to the halohydrocarbon, at a temperature of 20 to 40 degrees C and a pressure of 1.2 to 2 bar to form trans 1,1,2,3,4,4- hexabromo-2-butene, gaseous bromine being additionally fed to the reactor with the reaction gas, and the bromine-containing offgas is optionally reacted in an after-reactor with excess diacetylene in a halohydrocarbon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3330608A DE3330608A1 (en) | 1983-08-25 | 1983-08-25 | METHOD FOR PRODUCING TRANS-1.1.2.3.4.4-HEXABROM-2-BUTEN (HBB) BY BRROMING DIACETYLENE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA846600B true ZA846600B (en) | 1985-04-24 |
Family
ID=6207376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA846600A ZA846600B (en) | 1983-08-25 | 1984-08-24 | Process for the manufacture of trans-1.1.2.3.4.4-hexabromo-2-butene(hbb)by the bromination of diacetylene |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0133911B1 (en) |
| JP (1) | JPS6089438A (en) |
| AT (1) | ATE27448T1 (en) |
| CA (1) | CA1229626A (en) |
| DE (2) | DE3330608A1 (en) |
| NO (1) | NO157016C (en) |
| RO (1) | RO89861A2 (en) |
| SU (1) | SU1225478A3 (en) |
| ZA (1) | ZA846600B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4885233B2 (en) * | 2005-11-10 | 2012-02-29 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Composition, anti-combustion composition, anti-combustion and / or extinguishing method, anti-combustion system and production method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1360050A (en) * | 1970-11-20 | 1974-07-17 | Tenneco Chem | Polyhalogenated aliphatic hydrocarbons |
| US4107230A (en) * | 1974-05-08 | 1978-08-15 | Tenneco Chemicals, Inc. | Flame-retardant thermosetting resinous compositions |
-
1983
- 1983-08-25 DE DE3330608A patent/DE3330608A1/en not_active Withdrawn
-
1984
- 1984-07-02 AT AT84107637T patent/ATE27448T1/en not_active IP Right Cessation
- 1984-07-02 EP EP84107637A patent/EP0133911B1/en not_active Expired
- 1984-07-02 DE DE8484107637T patent/DE3463927D1/en not_active Expired
- 1984-08-21 RO RO84115546A patent/RO89861A2/en unknown
- 1984-08-21 SU SU843783006A patent/SU1225478A3/en active
- 1984-08-22 NO NO843350A patent/NO157016C/en unknown
- 1984-08-24 JP JP59175320A patent/JPS6089438A/en active Pending
- 1984-08-24 CA CA000461729A patent/CA1229626A/en not_active Expired
- 1984-08-24 ZA ZA846600A patent/ZA846600B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA1229626A (en) | 1987-11-24 |
| DE3463927D1 (en) | 1987-07-02 |
| NO157016B (en) | 1987-09-28 |
| EP0133911A2 (en) | 1985-03-13 |
| ATE27448T1 (en) | 1987-06-15 |
| JPS6089438A (en) | 1985-05-20 |
| EP0133911B1 (en) | 1987-05-27 |
| EP0133911A3 (en) | 1986-02-12 |
| NO157016C (en) | 1988-01-06 |
| SU1225478A3 (en) | 1986-04-15 |
| RO89861A2 (en) | 1986-09-30 |
| NO843350L (en) | 1985-02-26 |
| DE3330608A1 (en) | 1985-03-07 |
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