CN214553488U - Bromination reaction device that bromine high efficiency was utilized - Google Patents
Bromination reaction device that bromine high efficiency was utilized Download PDFInfo
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- CN214553488U CN214553488U CN202023189475.XU CN202023189475U CN214553488U CN 214553488 U CN214553488 U CN 214553488U CN 202023189475 U CN202023189475 U CN 202023189475U CN 214553488 U CN214553488 U CN 214553488U
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Abstract
The utility model discloses a bromination reaction unit that bromine high efficiency was utilized belongs to the high-efficient technical field that utilizes of bromine, including the bromination cauldron, bromination cauldron top is equipped with gas phase outlet and solvent backward flow entry, the inlet connection of gas phase outlet and condenser, the solvent backward flow entry with the exit end of condenser is connected, the top and the external bromine pipe connection of bromination cauldron, the tip of bromine pipeline with distributing pipe connection in the bromination cauldron, be equipped with a plurality of bromine dropwise add pipe on the distributing pipe, bromination cauldron bottom is connected with solid-liquid separation ware through arranging the material pipeline, the solid-liquid separation ware top has the oxidation jar through waste liquid pipe connection, the oxidation jar bottom has organic branch fluid reservoir through the pipe connection, organic branch fluid reservoir bottom has the knockout through the pipe connection. The device realizes the high-efficiency utilization of bromine and avoids the waste of bromine.
Description
Technical Field
The utility model relates to a bromine high efficiency utilizes technical field, concretely relates to bromination reaction unit that bromine high efficiency utilized.
Background
The bromination reaction is a reaction in which hydrogen in the molecule of an organic compound is substituted with bromine to produce a bromine-containing compound. Bromine is a commonly used brominating agent, and is widely applied to the fields of high-efficiency flame retardants, refrigerants, petroleum completion fluids, medicines, fuel intermediates, chemical reagents and the like. Because bromine is an extremely volatile liquid, bromine needs to be uniformly and quickly added into a reaction kettle in a bromination reaction, and byproducts can be generated if the bromine cannot be uniformly added. In addition, after the bromination reaction is finished, part of unreacted bromine is discharged along with the waste liquid, so that bromine waste is caused, and the environment is also influenced.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a bromination reaction unit of bromine high efficiency utilization, bromine passes through in distributing pipe, bromine dropwise add pipe add the bromination cauldron, can realize even, the quick interpolation of bromine, can realize the high-efficient backward flow of bromine through setting up of series connection condenser, reduces the waste of bromine, carries out recovery processing with the bromine-containing waste liquid of discharge after the bromination reaction finishes simultaneously, has realized the recovery of bromine, has realized the high-efficient utilization of bromine.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a bromination reaction device that bromine high efficiency was utilized, includes the bromination cauldron, bromination cauldron top is equipped with gas phase export and solvent backward flow entry, the inlet connection of gas phase export and condenser, the solvent backward flow entry with the exit end of condenser is connected, the top of bromination cauldron is connected with external bromine pipe connection, the tip of bromine pipeline with distribution pipe connection in the bromination cauldron, be equipped with a plurality of bromine dropwise add pipe on the distribution pipe, bromination cauldron bottom is connected with solid-liquid separator through arranging the pipeline, the solid-liquid separator top has the oxidation jar through waste liquid pipe connection, the oxidation jar top has the hydrogen peroxide solution jar through hydrogen peroxide solution pipe connection, the oxidation jar bottom has organic minute liquid jar through pipe connection, organic minute liquid jar top has organic solvent jar through organic solvent pipe connection, organic minute liquid jar bottom has the knockout through pipe connection, the top of the liquid separator is provided with a water outlet, and the bottom of the liquid separator is provided with a bromine outlet.
Preferably, the condenser is two tube-in-tube condensers connected in series.
Preferably, stirrers are arranged in the oxidation tank and the organic liquid separating tank.
Preferably, the liquid separator comprises a shell, and the outer wall of the shell is provided with a cooling jacket.
The utility model has the advantages of that:
1. bromine is added into the bromination kettle through a distribution pipe and a bromine dropping pipe, so that uniform and rapid addition of bromine can be realized, the uniformity and reaction effect of bromination reaction are improved, and the production efficiency is improved;
2. the efficient backflow of bromine can be realized by the arrangement of serially connected condensers, so that the waste of bromine is reduced;
3. the bromine-containing waste liquid discharged after the bromination reaction is recycled, firstly, bromine ions react with hydrogen peroxide in an oxidation tank to obtain bromine, then the bromine enters an organic liquid separation tank, the bromine enters the organic solvent to generate liquid separation by adding an organic solvent, the bromine further enters a liquid separator to be kept stand and separated, an upper aqueous solution can be discharged through a water outlet, a lower bromine layer can be discharged through a bromine outlet, and then the bromine is separated from the organic solvent through subsequent multiple fractionation, so that the recovery of the bromine is realized, and the waste of the bromine and the environmental pollution are avoided;
4. the liquid separator is provided with a cooling jacket, so that the temperature of a liquid separating system can be reduced, the solubility of bromine in a solution is reduced, and the effective separation of the bromine is facilitated;
5. the setting of agitator can make the oxidation reaction in the oxidation tank abundant, go on fast for bromine is faster, more abundant dissolves in organic solvent in the organic knockout drum.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a bromination reaction device for efficiently utilizing bromine of the present invention.
In the figure: 1-bromination kettle, 2-condenser, 3-bromine pipeline, 4-distribution pipe, 5-bromine dropping pipe, 6-solid-liquid separator, 7-oxidation tank, 8-hydrogen peroxide tank, 9-organic liquid separation tank, 10-organic solvent tank, 11-liquid separator, 12-stirrer, 13-cooling jacket.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
The bromination reaction device comprises a bromination kettle 1, wherein the top of the bromination kettle 1 is provided with a gas phase outlet and a solvent backflow inlet, the gas phase outlet is connected with the inlet end of a condenser 2, the solvent backflow inlet is connected with the outlet end of the condenser 2, the top of the bromination kettle 1 is connected with an external bromine pipeline 3, the end part of the bromine pipeline 3 is connected with a distribution pipe 4 in the bromination kettle 1, the distribution pipe 4 is provided with a plurality of bromine dripping pipes 5, the bottom of the bromination kettle 1 is connected with a solid-liquid separator 6 through a discharge pipeline, the top of the solid-liquid separator 6 is connected with an oxidation tank 7 through a waste liquid pipeline, the top of the oxidation tank 7 is connected with a hydrogen peroxide tank 8 through a hydrogen peroxide pipeline, the bottom of the oxidation tank 7 is connected with an organic liquid separation tank 9 through a pipeline, the top of the organic liquid separation tank 9 is connected with an organic solvent tank 10 through an organic solvent pipeline, the bottom of the organic liquid separating tank 9 is connected with a liquid separator 11 through a pipeline, the top of the liquid separator 11 is provided with a water outlet, and the bottom of the liquid separator 11 is provided with a bromine outlet.
The condenser 2 is two tube bundle condensers connected in series. And stirrers 12 are arranged in the oxidation tank 7 and the organic liquid separation tank 9. The liquid separator 11 comprises a shell, and a cooling jacket 13 is arranged on the outer wall of the shell.
When the bromination reaction is carried out in the bromination kettle 1, bromine is added into the bromination kettle 1 through a bromine pipeline 3, a distribution pipe 4 and a bromine dropping pipe 5, so that the bromine can be uniformly and quickly added, the bromine is volatile in the reaction process, the efficient backflow of the bromine can be realized through the two condensers 2 which are connected in series, and the bromine waste is reduced. After the bromination reaction is finished, firstly, the discharged feed liquid is subjected to solid-liquid separation in a solid-liquid separator 6, the solid layer is a product obtained by the reaction, the liquid layer is waste liquid containing bromide ions, the discharged bromine-containing waste liquid is recycled, firstly, in an oxidation tank 7, the bromide ions react with hydrogen peroxide to obtain bromine, then the bromine enters an organic liquid separation tank 9, the bromine enters the organic solvent to generate liquid separation by adding an organic solvent, the bromine further enters a liquid separator 11 to be subjected to standing separation, an upper-layer aqueous solution can be discharged through a water outlet, a lower-layer bromine can be discharged through a bromine outlet, and then the bromine is separated from the organic solvent through subsequent multiple fractionations, so that the recovery of the bromine is realized. The liquid separator 11 is provided with a cooling jacket 13, which can reduce the temperature of the liquid separating system, thereby reducing the solubility of bromine in the solution and facilitating the effective separation of bromine. The stirrer 12 can ensure that the oxidation reaction in the oxidation tank 7 is fully and quickly carried out, and the bromine in the organic liquid separation tank 9 is more quickly and fully dissolved in the organic solvent.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (4)
1. The bromination reaction device is characterized by comprising a bromination kettle, wherein the top of the bromination kettle is provided with a gas phase outlet and a solvent backflow inlet, the gas phase outlet is connected with the inlet end of a condenser, the solvent backflow inlet is connected with the outlet end of the condenser, the top of the bromination kettle is connected with an external bromine pipeline, the end part of the bromine pipeline is connected with a distribution pipe in the bromination kettle, the distribution pipe is provided with a plurality of bromine dripping pipes, the bottom of the bromination kettle is connected with a solid-liquid separator through a discharge pipeline, the top of the solid-liquid separator is connected with an oxidation tank through a waste liquid pipeline, the top of the oxidation tank is connected with a hydrogen peroxide tank through a hydrogen peroxide pipeline, the bottom of the oxidation tank is connected with an organic liquid separation tank through a pipeline, the top of the organic liquid separation tank is connected with an organic solvent tank through an organic solvent pipeline, the bottom of the organic liquid separation tank is connected with a liquid separator through a pipeline, the top of the liquid separator is provided with a water outlet, and the bottom of the liquid separator is provided with a bromine outlet.
2. The bromination reaction device that efficiently utilizes bromine according to claim 1, wherein said condenser is two tube-in-tube condensers connected in series.
3. The bromination reaction device that efficiently utilizes bromine according to claim 1, wherein stirrers are arranged in both the oxidation tank and the organic liquid separation tank.
4. The bromination reaction device for efficiently utilizing bromine according to claim 1, wherein the liquid distributor comprises a shell, and a cooling jacket is arranged on the outer wall of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023189475.XU CN214553488U (en) | 2020-12-26 | 2020-12-26 | Bromination reaction device that bromine high efficiency was utilized |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023189475.XU CN214553488U (en) | 2020-12-26 | 2020-12-26 | Bromination reaction device that bromine high efficiency was utilized |
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| Publication Number | Publication Date |
|---|---|
| CN214553488U true CN214553488U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023189475.XU Active CN214553488U (en) | 2020-12-26 | 2020-12-26 | Bromination reaction device that bromine high efficiency was utilized |
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| CN (1) | CN214553488U (en) |
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- 2020-12-26 CN CN202023189475.XU patent/CN214553488U/en active Active
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