CN219963987U - Triethylamine purification system - Google Patents
Triethylamine purification system Download PDFInfo
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- CN219963987U CN219963987U CN202321344843.4U CN202321344843U CN219963987U CN 219963987 U CN219963987 U CN 219963987U CN 202321344843 U CN202321344843 U CN 202321344843U CN 219963987 U CN219963987 U CN 219963987U
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- Prior art keywords
- triethylamine
- gas
- communicated
- rectifying tower
- inlet
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- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 238000000746 purification Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims description 34
- 239000012528 membrane Substances 0.000 claims description 18
- 238000009833 condensation Methods 0.000 claims description 15
- 230000005494 condensation Effects 0.000 claims description 15
- 238000010992 reflux Methods 0.000 claims description 7
- 239000002808 molecular sieve Substances 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 35
- 230000000694 effects Effects 0.000 abstract description 13
- 239000011259 mixed solution Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000004821 distillation Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000979 synthetic dye Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the field of triethylamine purification, and discloses a triethylamine purification system which comprises a rectifying tower, a conveying device, a reboiler, a gas separator, a condenser, a dryer and a collecting tank. The effect of rectifying the mixed solution of the triethylamine and the water can be realized through the arranged rectifying tower, and an azeotrope of the triethylamine and the water is formed; the gas separator can realize the effect of separating the mixed gas of triethylamine and water; the condenser can be used for realizing the effect of condensing the separated gaseous triethylamine and water vapor respectively; the dryer can be used for drying a small amount of water in the condensed liquid triethylamine, so that the purity of the separated triethylamine is improved; through the arrangement of the structure, the process of separating and purifying the triethylamine in the mixed solution of the triethylamine and the water is simplified, and equipment required to be input is reduced, so that the cost required to be input is reduced.
Description
Technical Field
The utility model belongs to the technical field of triethylamine purification, and particularly relates to a triethylamine purification system.
Background
Triethylamine, an organic compound, a system named N, N-diethyl ethylamine, is a colorless transparent liquid with strong ammonia odor, and is micro-fuming in air; slightly soluble in water, soluble in ethanol and diethyl ether, and slightly alkaline in aqueous solution; inflammable and explosive. Is toxic and has strong irritation. The method is mainly used as solvents, curing agents, catalysts, polymerization inhibitors, preservatives, synthetic dyes and the like in industry.
Chinese patent CN212141519U discloses a triethylamine separation and purification device, including distillation column, distillation mechanism, feed inlet, reboiling mechanism, transport mechanism, condenser, second distillation column, three-phase valve, second condenser, collection tank, packing distillation column, third condenser and second collection tank, although this patent can realize the effect of separating and purifying triethylamine in the waste liquid, its technology when handling the mixed solution of triethylamine and water still is comparatively complicated, and the equipment that needs to throw in is also more.
Disclosure of Invention
The utility model aims to provide a triethylamine purification system which is used for solving the problems existing in the prior art.
In order to solve the technical problems, the specific technical scheme of the utility model is as follows:
in some embodiments of the present utility model, there is provided a triethylamine purification system comprising:
a rectifying tower;
the conveying device is communicated with the middle part of one side of the rectifying tower;
the reboiler is provided with a liquid inlet and a reflux inlet, the liquid inlet is communicated with the bottom of the rectifying tower, and the reflux inlet is communicated with the bottom of one side of the rectifying tower;
the gas separator is provided with a gas inlet, a first gas outlet and a second gas outlet, and the gas inlet is communicated with the top of the rectifying tower;
the condenser comprises a first condensing pipe and a second condensing pipe, the inlet end of the first condensing pipe is communicated with the first air outlet, and the outlet end of the first condensing pipe is communicated with the top of one side of the rectifying tower; the inlet end of the second condensation pipe is communicated with the air outlet;
the top of the dryer is communicated with the outlet end of the second condenser pipe;
and the collecting tank is communicated with the bottom of the dryer.
Preferably, in a preferred embodiment of the above triethylamine purification system, the gas separator comprises:
the separation box is provided with the air inlet at one side, and the first air outlet and the second air outlet are arranged at the other side of the separation box;
the gas separation membrane is arranged in the separation box, the gas inlet and the gas outlet II are both positioned below the gas separation membrane, and the gas outlet I is positioned above the gas separation membrane.
Preferably, in a preferred embodiment of the above triethylamine purification system, the gas separation membrane is provided in a wave shape.
Preferably, in a preferred embodiment of the above triethylamine purification system, the conveying device comprises:
a liquid storage tank;
the inlet end of the delivery pump is communicated with the bottom of one side of the liquid storage tank, and the outlet end of the delivery pump is communicated with the middle part of one side of the rectifying tower;
and the flow control valve is arranged on a pipeline between the outlet end of the delivery pump and the rectifying tower.
Preferably, in a preferred embodiment of the above triethylamine purification system, the dryer is a 4A molecular sieve dryer.
Compared with the prior art, the utility model has the beneficial effects that:
the effect of rectifying the mixed solution of the triethylamine and the water can be achieved through the rectifying tower, and the mixed solution can form an azeotrope of the triethylamine and the water.
The gas separator can realize the effect of separating the mixed gas of triethylamine and water.
The condenser can be used for realizing the effect of condensing the separated gaseous triethylamine and water vapor respectively.
The dryer can be used for drying a small amount of water in the condensed liquid triethylamine, so that the purity of the separated triethylamine is improved.
Through the arrangement of the structure, the process of separating and purifying the triethylamine in the mixed solution of the triethylamine and the water is simplified, and equipment required to be input is reduced, so that the cost required to be input is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of a triethylamine purification system according to an embodiment of the present utility model;
in the figure:
1. a rectifying tower; 2. a conveying device; 21. a liquid storage tank; 22. a transfer pump; 23. a flow control valve; 3. a reboiler; 4. a gas separator; 41. a separation box; 42. a gas separation membrane; 5. a condenser; 51. a first condensing tube; 52. a second condensing tube; 6. a dryer; 7. and a collection tank.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The present utility model will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present utility model.
Referring to fig. 1, in accordance with some embodiments of the present utility model, a triethylamine purification system comprises:
a rectifying tower 1;
the conveying device 2 is communicated with the middle part of one side of the rectifying tower 1 through a pipeline;
the reboiler 3 is provided with a liquid inlet and a reflux inlet, the liquid inlet is communicated with the bottom of the rectifying tower 1 through a pipeline, and the reflux inlet is communicated with the bottom of one side of the rectifying tower 1 through a pipeline;
the gas separator 4 is provided with a gas inlet, a first gas outlet and a second gas outlet, and the gas inlet is communicated with the top of the rectifying tower 1 through a pipeline;
the condenser 5 comprises a first condensation pipe 51 and a second condensation pipe 52, wherein the inlet end of the first condensation pipe 51 is communicated with the first air outlet through a pipeline, and the outlet end of the first condensation pipe 51 is communicated with the top of one side of the rectifying tower 1 through a pipeline; the inlet end of the second condensation pipe 52 is communicated with the second air outlet through a pipeline;
the top of the dryer 6 is communicated with the outlet end of the second condensation pipe 52 through a pipeline;
and a collecting tank 7, wherein the collecting tank 7 is communicated with the bottom of the dryer 6 through a pipeline.
Specifically, the rectifying tower 1 is used for rectifying the mixed liquid of triethylamine and water; triethylamine forms an azeotrope with water and exits the vapor outlet at the top of the rectifying column 1 and enters the gas separator 4.
Specifically, the mixed liquid discharged from the bottom of the rectifying tower 1 enters a reboiler 3 for heating, and the azeotrope formed after heating and the rest mixed liquid flow back to the inside of the rectifying tower 1.
Specifically, the gas separator 4 is configured to separate a mixed gas of triethylamine and water, and the separated water vapor is discharged from the first gas outlet and enters the first condensation pipe 51, and the separated gaseous triethylamine is discharged from the second gas outlet and enters the second condensation pipe 52.
Specifically, the water vapor is condensed by the first condensation pipe 51 and becomes liquid water, and the liquid water is returned to the inside of the rectifying tower 1; the gaseous triethylamine is condensed by the second condensation pipe 52 and becomes liquid, and the gaseous triethylamine is discharged into the dryer 6 for drying treatment, and a small amount of water in the triethylamine is removed and then discharged into the collection tank 7 for storage.
Specifically, the dryer 6 may be a 4A molecular sieve dryer, which is known in the art, and the working principle and the usage method are not described herein.
Through the technical scheme, the utility model has the following technical effects: the effect of rectifying the mixed solution of the triethylamine and the water can be achieved through the rectifying tower 1, and an azeotrope of the triethylamine and the water is formed; the gas separator 4 can realize the effect of separating the mixed gas of triethylamine and water; the condenser 5 can be used for realizing the effect of condensing the separated gaseous triethylamine and water vapor respectively; the dryer 6 can be used for drying a small amount of water in the condensed liquid triethylamine, so that the purity of the separated triethylamine is improved. Through the arrangement of the structure, the process of separating and purifying the triethylamine in the mixed solution of the triethylamine and the water is simplified, equipment needing to be input is reduced, and the cost needing to be input is reduced.
Referring to fig. 1, in a preferred embodiment of the present utility model, the gas separator 4 comprises:
the separation box 41, one side of the separation box 41 is provided with an air inlet, and the other side of the separation box is provided with a first air outlet and a second air outlet;
the gas separation membrane 42, the gas separation membrane 42 is arranged in the separation box 41, the gas inlet and the gas outlet are both positioned below the gas separation membrane 42, and the gas outlet is positioned above the gas separation membrane 42.
Specifically, the gas separation membrane 42 divides the separation tank 41 into an upper chamber for containing separated water vapor and a lower chamber for containing gaseous triethylamine.
Specifically, the air inlet and the air outlet II on the separation box 41 are respectively communicated with the lower cavity, and the air outlet I on the separation box 41 is communicated with the upper cavity.
Specifically, water vapor can enter the upper chamber through the gas separation membrane 42, and gaseous triethylamine cannot be blocked in the lower chamber through the gas separation membrane 42.
By adopting the technical scheme, the effect of separating the mixed gas of the triethylamine and the water can be realized.
Referring to fig. 1, in a preferred embodiment of the present utility model, the gas separation membrane 42 is provided in a wave shape.
By adopting the scheme, the flowing time of the mixed gas of the triethylamine and the water in the lower cavity can be prolonged, and the contact area of the water vapor and the gas separation membrane 42 can be increased, so that the separation effect of the water vapor and the gaseous triethylamine can be improved.
Referring to fig. 1, in a preferred embodiment of the present utility model, a conveying apparatus 2 includes:
a liquid storage tank 21;
the inlet end of the delivery pump 22 is communicated with the bottom of one side of the liquid storage tank 21, and the outlet end of the delivery pump 22 is communicated with the middle of one side of the rectifying tower 1;
a flow control valve 23, the flow control valve 23 being provided on a pipe between the outlet end of the transfer pump 22 and the rectifying column 1.
By adopting the scheme, the mixed liquid of triethylamine to be treated and water can be temporarily stored and quantitatively conveyed into the rectifying tower 1 for rectifying treatment.
In addition, a transfer pump 22 and a flow control valve 23 are installed on the pipeline between the reflux port on the reboiler 3 and the rectifying tower 1, and on the pipeline between the outlet end of the first condenser pipe 51 and the rectifying tower 1; flow control valves 23 are installed on the pipelines between the bottom of the rectifying tower 1 and the liquid inlet on the reboiler 3, the pipeline between the first gas outlet of the gas separator 4 and the inlet end of the first condensation pipe 51, the pipeline between the second gas outlet of the gas separator 4 and the second condensation pipe 52, the pipeline between the outlet end of the second condensation pipe 52 and the dryer 6, and the pipeline between the dryer 6 and the collecting tank 7.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (5)
1. A triethylamine purification system, comprising:
a rectifying tower;
the conveying device is communicated with the middle part of one side of the rectifying tower;
the reboiler is provided with a liquid inlet and a reflux inlet, the liquid inlet is communicated with the bottom of the rectifying tower, and the reflux inlet is communicated with the bottom of one side of the rectifying tower;
the gas separator is provided with a gas inlet, a first gas outlet and a second gas outlet, and the gas inlet is communicated with the top of the rectifying tower;
the condenser comprises a first condensing pipe and a second condensing pipe, the inlet end of the first condensing pipe is communicated with the first air outlet, and the outlet end of the first condensing pipe is communicated with the top of one side of the rectifying tower; the inlet end of the second condensation pipe is communicated with the air outlet;
the top of the dryer is communicated with the outlet end of the second condenser pipe;
and the collecting tank is communicated with the bottom of the dryer.
2. A triethylamine purification system according to claim 1, wherein the gas separator comprises:
the separation box is provided with the air inlet at one side, and the first air outlet and the second air outlet are arranged at the other side of the separation box;
the gas separation membrane is arranged in the separation box, the gas inlet and the gas outlet II are both positioned below the gas separation membrane, and the gas outlet I is positioned above the gas separation membrane.
3. A triethylamine purification system according to claim 2, characterized in that the gas separation membrane is arranged in a wave-like manner.
4. A triethylamine purification system according to claim 1, characterized in that the conveying means comprise:
a liquid storage tank;
the inlet end of the delivery pump is communicated with the bottom of one side of the liquid storage tank, and the outlet end of the delivery pump is communicated with the middle part of one side of the rectifying tower;
and the flow control valve is arranged on a pipeline between the outlet end of the delivery pump and the rectifying tower.
5. A triethylamine purification system according to claim 1, wherein the dryer is a 4A molecular sieve dryer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321344843.4U CN219963987U (en) | 2023-05-30 | 2023-05-30 | Triethylamine purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321344843.4U CN219963987U (en) | 2023-05-30 | 2023-05-30 | Triethylamine purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219963987U true CN219963987U (en) | 2023-11-07 |
Family
ID=88588575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321344843.4U Active CN219963987U (en) | 2023-05-30 | 2023-05-30 | Triethylamine purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219963987U (en) |
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2023
- 2023-05-30 CN CN202321344843.4U patent/CN219963987U/en active Active
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