GB876921A - A continuous process for the preparation of 1:4-dibromobutane - Google Patents
A continuous process for the preparation of 1:4-dibromobutaneInfo
- Publication number
- GB876921A GB876921A GB26927/57A GB2692757A GB876921A GB 876921 A GB876921 A GB 876921A GB 26927/57 A GB26927/57 A GB 26927/57A GB 2692757 A GB2692757 A GB 2692757A GB 876921 A GB876921 A GB 876921A
- Authority
- GB
- United Kingdom
- Prior art keywords
- column
- dibromobutane
- tetrahydrofuran
- continuous process
- separating
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1:4-Dibromobutane is prepared by a continuous process which comprises introducing tetrahydrofuran into the top of a vertical reaction column and anhydrous hydrobromic acid into the bottom of the column so as to react with each other under normal pressure in the vapour phase and in the absence of either a catalyst or a dehydrating agent, the column being filled with an inert finely-divided material, collecting the resultant reaction products at the bottom of the column, separating 1:4-dibromobutane, unreacted tetrahydrofuran and water, recycling the tetrahydrofuran and the excess hydrobromic acid which passes out at the top of the column and separating the 1:4-dibromobutane from the reaction products. An apparatus for carrying out the process is described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1110148X | 1957-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB876921A true GB876921A (en) | 1961-09-06 |
Family
ID=9626035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26927/57A Expired GB876921A (en) | 1957-03-04 | 1957-08-26 | A continuous process for the preparation of 1:4-dibromobutane |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE565333A (en) |
| DE (1) | DE1110148B (en) |
| FR (1) | FR1168788A (en) |
| GB (1) | GB876921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636909A (en) * | 2021-09-16 | 2021-11-12 | 中盐常州化工股份有限公司 | Method for continuously preparing 1, 4-dichlorobutane |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2491834A (en) * | 1946-08-08 | 1949-12-20 | Du Pont | Production of 1,4-dihalobutanes |
-
0
- BE BE565333D patent/BE565333A/xx unknown
-
1957
- 1957-03-04 FR FR1168788D patent/FR1168788A/en not_active Expired
- 1957-06-05 DE DEC14950A patent/DE1110148B/en active Pending
- 1957-08-26 GB GB26927/57A patent/GB876921A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636909A (en) * | 2021-09-16 | 2021-11-12 | 中盐常州化工股份有限公司 | Method for continuously preparing 1, 4-dichlorobutane |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1168788A (en) | 1958-12-16 |
| BE565333A (en) | |
| DE1110148B (en) | 1961-07-06 |
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