CN116059673A - Triethylamine dehydration filtering device and implementation method - Google Patents
Triethylamine dehydration filtering device and implementation method Download PDFInfo
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- CN116059673A CN116059673A CN202111284545.6A CN202111284545A CN116059673A CN 116059673 A CN116059673 A CN 116059673A CN 202111284545 A CN202111284545 A CN 202111284545A CN 116059673 A CN116059673 A CN 116059673A
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- pipe
- circulating
- triethylamine
- storage tank
- rectifying column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
- B01D3/146—Multiple effect distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0492—Applications, solvents used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A triethylamine dehydrates the filtering device and implementation method, including the storage tank, connect the top of the storage tank below the surface of the outside of the storage tank to have circulating pipes, there are circulating pumps on the circulating pipe, one end of the first connecting pipe is connected with circulating pipe, its another end is connected with first rectifying column, the bottom of the first rectifying column has second connecting pipes and connects with second rectifying column; the utility model discloses a through feeding pipe and alkali lye pipe to adding raw materials and alkali lye in the storage tank, then carry out the circulation operation to its whole through the circulating pipe and make its whole integration, reached the beneficial effect that improves the operating efficiency.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a triethylamine dehydration filtering device and an implementation method.
Background
Triethylamine is an atmospheric solvent in the pharmaceutical industry, and is necessary to recover after use, but more or less water exists, and nine parts of triethylamine are consumed for removing one part of water due to the azeotropic phenomenon of the triethylamine and the water, so that the water removal in the triethylamine is an important problem of recovery rate; at present, the triethylamine water removal method in the industry mainly adopts caustic soda flakes to absorb the water contained in the caustic soda flakes or adds an entrainer for azeotropic distillation, and the caustic soda flakes are adopted for purification, so that not only are the adding difficult, but also heat release can be generated, and the stirring and the fluid transportation are inconvenient; in the common azeotropic means, an entrainer and other mediums are adopted, and impurities of the entrainer may be mixed, so that the purity is affected.
Disclosure of Invention
In order to solve the problems, the invention provides a triethylamine dehydration filtering device and an implementation method.
The technical scheme adopted for solving the technical problems is as follows: a triethylamine dehydration filtration device and implementation method, including the storage tank, its characteristic lies in: the utility model discloses a circulating pump, including storage tank outside surface below connection storage tank top, be equipped with the circulating pump on the circulating pipe, the storage tank upper surface is located circulating pipe side and is equipped with inlet pipe and alkali lye pipe respectively, and the lower bottom surface is equipped with the fluid-discharge tube, and first connecting pipe one end is connected with the circulating pipe, and its other end is connected with first rectifying column, first rectifying column top is equipped with first blast pipe, and the bottom is equipped with the second connecting pipe and is connected with the second rectifying column, connect first rectifying column outside surface on the first blast pipe and be equipped with first back flow, be equipped with the connecting pump on the second connecting pipe, second rectifying column top is equipped with the second blast pipe, and bottom plate portion is equipped with the exhaust pipe, connect second rectifying column outside surface on the second blast pipe and be equipped with the second back flow.
Further, the first exhaust pipe is connected with the outer side surface of the first rectifying tower, and 1-2 first return pipes are arranged on the outer side surface of the first rectifying tower.
Further, the second exhaust pipe is connected with the outer side surface of the second rectifying tower, and 1-2 second return pipes are arranged on the outer side surface of the second rectifying tower.
Further, 1-2 circulating pumps are arranged on the circulating pipe.
Further, 1-2 connecting pumps are arranged on the second connecting pipe.
The beneficial effects of the invention are as follows: raw materials and alkali lye are added into the storage tank through the feeding pipe and the alkali lye pipe, then the whole circulation operation is carried out on the raw materials and the alkali lye through the circulation pipe to enable the raw materials and the alkali lye to be integrally fused, then the raw materials and the alkali lye are kept stand to precipitate and separate, the waste liquid is discharged through the liquid discharge pipe, the residual raw materials are led into the first rectifying tower through the first connecting pipe, the residual raw materials are led into the second rectifying tower through the second connecting pipe, the residual raw materials are discharged from the second exhaust pipe through the vaporization mode, the residual impurities are discharged through the waste discharge pipe, triethylamine with higher purity can be effectively obtained through the mode, and the beneficial effects of ensuring the product quality and improving the operation efficiency are achieved.
Drawings
Fig. 1 is a schematic structural view according to an embodiment of the present invention.
Reference numerals: the device comprises a storage tank 1, a first rectifying tower 2, a second rectifying tower 3, a feeding pipe 11, a lye pipe 12, a circulating pipe 13, a circulating pump 14, a liquid discharge pipe 15, a first connecting pipe 16, a first exhaust pipe 21, a first return pipe 22, a second connecting pipe 23, a connecting pump 24, a second exhaust pipe 31, a second return pipe 32 and a waste discharge pipe 33.
Detailed Description
In order to make the technical scheme of the invention more clear, the invention is further described below by referring to the specific embodiments in the drawings.
As shown in FIG. 1, according to the embodiment of the invention, the triethylamine dehydration filtering device comprises a storage tank 1, a circulating pipe 13 is arranged at the top end of the storage tank 1, which is connected with the lower part of the outer side surface of the storage tank 1, a circulating pump 14 is arranged on the circulating pipe 13, a feeding pipe 11 and an alkali liquor pipe 12 are respectively arranged at the side of the upper surface of the storage tank 1, a liquid discharge pipe 15 is arranged at the lower bottom surface of the storage tank 1, a first connecting pipe 16 end is connected with the circulating pipe 13, the other end of the first connecting pipe is connected with a first rectifying tower 2, a first exhaust pipe 21 is arranged at the top of the first rectifying tower 2, a second connecting pipe 23 is arranged at the bottom of the first rectifying tower 2 and is connected with a second rectifying tower 3, a first return pipe 22 is arranged at the outer side surface of the first exhaust pipe 21, a connecting pump 24 is arranged on the second connecting pipe 23, a second exhaust pipe 31 is arranged at the top of the second rectifying tower 3, a waste pipe 33 is arranged at the bottom plate part, and a second return pipe 32 is arranged at the outer side surface of the second rectifying tower 3.
Further, the first exhaust pipe 21 is connected to the outer side surface of the first rectifying tower 2, and 1-2 first return pipes 22 are arranged.
Further, the second exhaust pipe 31 is connected to the outer side surface of the second rectifying tower 3, and 1-2 second return pipes 32 are arranged.
Further, 1-2 circulation pumps 14 are arranged on the circulation pipe 13.
Further, the second connecting pipe 23 is provided with 1-2 connecting pumps 24.
As shown in fig. 1, when the application needs to be used for dewatering triethylamine, raw materials and alkali liquor are firstly added into a storage tank 1 through a feed pipe 11 and an alkali liquor pipe 12, then a circulating pump 14 is started, the whole triethylamine is subjected to circulating operation through a circulating pipe 13 to be integrally fused, after the circulating pump is subjected to standing precipitation separation, waste liquor is discharged through a liquid discharge pipe 15 and then the residual raw materials are led into a first rectifying tower 2 through a first connecting pipe 16, waste gas generated by the waste liquor is discharged through a first exhaust pipe 21, in order to prevent backflow phenomenon, the reflowed gas is circularly discharged through a first backflow pipe 22, the residual raw materials are led into a second rectifying tower 3 through a second connecting pipe 23 and are discharged through a connecting pump 24, in addition, if the backflow phenomenon occurs, the vaporized triethylamine is circularly discharged through a second backflow pipe 32, and the residual impurities are discharged through a waste discharge pipe 33, so that the triethylamine with higher purity can be effectively obtained, and the beneficial effects of ensuring the quality of the product and improving the working efficiency are achieved.
The above embodiments may be combined with each other without being opposed to each other, and further implemented.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The triethylamine dehydration and filtration device comprises a storage tank (1), and is characterized in that: the utility model discloses a liquid-solid separation device, including storage tank (1), circulating pipe (13) are connected to storage tank (1) outside surface below, be equipped with circulating pump (14) on circulating pipe (13), storage tank (1) upper surface is located circulating pipe (13) side and is equipped with inlet pipe (11) and alkali lye pipe (12) respectively, and the lower bottom surface is equipped with fluid-discharge tube (15), and first connecting tube (16) one end is connected with circulating pipe (13), and its other end is connected with first rectifying column (2), first rectifying column (2) top is equipped with first blast pipe (21), and the bottom is equipped with second connecting tube (23) and is connected with second rectifying column (3), first rectifying column (2) outside surface is equipped with first back flow (22) on first blast pipe (21), be equipped with connecting pump (24) on second connecting tube (23), second rectifying column (3) top is equipped with second blast pipe (31), and bottom plate portion is equipped with exhaust pipe (33), second rectifying column (3) outside surface is equipped with second back flow (32) on second blast pipe (31).
2. The triethylamine dehydration filtration device and implementation method according to claim 1, wherein the device is characterized in that: the first exhaust pipe (21) is connected with the outer side surface of the first rectifying tower (2), and 1-2 first return pipes (22) are arranged on the outer side surface of the first rectifying tower.
3. The triethylamine dehydration filtration device and implementation method according to claim 1, wherein the device is characterized in that: and 1-2 second return pipes (32) are arranged on the outer side surface of the second rectifying tower (3) connected to the second exhaust pipe (31).
4. The triethylamine dehydration filtration device and implementation method according to claim 1, wherein the device is characterized in that: the circulating pipe (13) is provided with 1-2 circulating pumps (14).
5. The triethylamine dehydration filtration device and implementation method according to claim 1, wherein the device is characterized in that: and 1-2 connecting pumps (24) are arranged on the second connecting pipe (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111284545.6A CN116059673A (en) | 2021-11-01 | 2021-11-01 | Triethylamine dehydration filtering device and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111284545.6A CN116059673A (en) | 2021-11-01 | 2021-11-01 | Triethylamine dehydration filtering device and implementation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116059673A true CN116059673A (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111284545.6A Pending CN116059673A (en) | 2021-11-01 | 2021-11-01 | Triethylamine dehydration filtering device and implementation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116059673A (en) |
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2021
- 2021-11-01 CN CN202111284545.6A patent/CN116059673A/en active Pending
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