An improved process for the production of agmatine

Abstract

The utility model relates to the field of crude amine purification discloses a kind of processing device for improving production of refined amine quality including ammonia washing device, water washing device and oil-water separation device, ammonia washing device is connected with water washing device by oil-water separation device, ammonia washing device includes ammonia washing kettle, heating device is equipped below ammonia washing kettle, the upper end of ammonia washing kettle is provided with feed inlet one, the lower end is provided with discharge port one, discharge port one is connected with ammonia washing kettle pump, feed inlet one is connected with the pipeline for entering crude amine, the pipeline for entering ammonia water, discharge port one is provided with refined amine concentration detection device, compared with the mode of removing part of trimethyl ester by the mode of traditional evaporation through film, the technical effect of removing trimethyl ester is achieved by using ammonia water and three ester reactions in the application, reaction does not need to reach very high temperature (boiling point of trimethyl ester), just need to be heated to the temperature of ammonia water and trimethyl ester reaction, so it will not take away part of material, cause refined amine recovery rate loss, improve the purification rate of crude amine.

Description

Technical Field

[0001] This utility model relates to the field of crude amine purification technology, and in particular to a processing device for improving the quality of refined amine production. Background Technology

[0002] Spermine is an important intermediate in the production of acephate. Currently, most domestic production processes for spermine use trichlorophosphorus as raw material, which is obtained through two-stage alcoholysis and ammoniation. During the alcoholysis of trichlorophosphorus, a portion of the byproduct O,O,O-trimethyl thiophosphate (hereinafter referred to as trimethyl ester) is generated in the final stage of its tandem reaction (usually 5-10%), and it exists as an impurity in spermine.

[0003] In existing technologies, the main method for purifying spermine production involves thin-film evaporation to remove some trimethyl ester, achieving a spermine content of approximately 95%. However, this process generates a certain amount of low-content spermine waste liquid (collectively referred to as secondary spermine). Although thin-film evaporation can achieve the goal of producing 95% spermine, the high boiling point of trimethyl ester results in a significant loss in spermine recovery. Utility Model Content

[0004] The purpose of this invention is to provide a processing device for improving the quality of spermine production, which has the effects of high spermine recovery rate and reduced loss during the spermine recovery process.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A processing device for improving the quality of produced spermine includes an ammonia washing device, a water washing device, and an oil-water separation device. The ammonia washing device and the water washing device are connected through the oil-water separation device. The ammonia washing device includes an ammonia washing kettle with a heating device below it. The ammonia washing kettle has an inlet at the top and an outlet at the bottom. An ammonia washing kettle pump is connected to the outlet. The inlet is connected to a pipeline for crude amine and a pipeline for ammonia water. A spermine concentration detection device is installed at the outlet.

[0006] By adopting the above technical solution, compared with the traditional method of partial removal of trimethyl ester through thin-film evaporation, this application uses the reaction of ammonia water with trimethyl ester to achieve the technical effect of removing trimethyl ester. The reaction does not need to reach a very high temperature (the boiling point of trimethyl ester), but only needs to be heated to the temperature at which ammonia water reacts with trimethyl ester. Therefore, it will not take away some material and cause a loss of spermine recovery rate, and improve the purification rate of crude amine. Compared with the purification rate of 95% of the traditional process, the purification rate of spermine in this application can reach more than 98%. The spermine concentration detection device monitors the spermine concentration at one outlet in real time. When the spermine concentration at the outlet reaches 97% or higher, the feed rate of ammonia and crude amine will no longer be adjusted. This ensures that the reaction in the ammonia washing reactor will not result in insufficient removal of trimethyl ester and reduced purity due to the reactant feed rate at inlet 1 being too fast and the reaction time being too short. It also prevents unnecessary extension of the reaction time due to the reactant feed rate at inlet 1 being too slow.

[0007] The present invention is further configured as follows: a liquid level sensor is provided on the side wall of the ammonia washing tank; the ammonia washing device also includes a residence tank; a heating device is provided below the residence tank; a feed inlet is provided at the upper end of the residence tank; a discharge outlet is provided at the lower end of the residence tank; a residence tank pump is connected to the discharge outlet; the two ends of the feed inlet are connected to the first discharge outlet through a pipe; a valve is provided at the end of the pipe near the second feed inlet of the tank.

[0008] By adopting the above technical solution, valve one will only open when the liquid level in the ammonia washing tank reaches the height of level sensor one, allowing the solution in the ammonia washing tank to enter the residence tank. This ensures the effective utilization of the space inside the ammonia washing tank and prevents most of the space inside the ammonia washing tank from being empty during liquid flow. Stirring inside the residence tank makes the reaction more complete, allowing the trimethyl ester in the crude amine to react more fully with the ammonia water in the residence tank.

[0009] A further feature of this invention is that the upper end of the ammonia washing kettle is provided with a return port 1, and the inlet port 2, the return port 1, and the outlet port 1 are connected together.

[0010] By adopting the above technical solution, a return port is provided at the upper end of the ammonia washing tank. The return port, discharge port, and inlet of the residence tank are connected. When the solution in the ammonia washing tank rises through the lower discharge port and the ammonia washing tank pump, part of it enters the residence tank through the inlet of the residence tank for stirring, and part of it flows back to the ammonia washing tank through the upper discharge port. This makes the ammonia water in the solution come into more complete contact with trimethyl ester, resulting in higher efficiency in removing trimethyl ester and higher purification rate of spermine.

[0011] The present invention is further configured as follows: a liquid level sensor 2 is provided on the side wall of the residence vessel; the water washing device includes an oil-water separator 1; the oil-water separator 1 has a feed inlet 4 and two discharge outlets; the oil-water separator 1 and the discharge outlets are connected through a pipe 2; a valve 2 is provided at one end of the pipe 2 near the feed inlet 4 of the oil-water separator 1; the two discharge outlets include an aqueous phase discharge outlet 1 and an organic phase discharge outlet 1; the organic phase discharge outlet 1 is connected to the water washing device; and the aqueous phase discharge outlet 1 is connected to the reaction unit for preparing crude amine in the upstream process.

[0012] By adopting the above technical solution, after the reaction solution is separated into oil and water in the oil-water separator, the upper aqueous phase containing residual spermine flows directly to the reaction vessel in the crude amine preparation stage. Therefore, the upper aqueous phase is directly connected to the upstream reaction unit vessel. The aqueous phase separated by the oil-water separator enters the ammonia washing kettle along with the crude amine prepared from the crude amine. There is no continuous generation of waste liquid that needs to be discharged immediately. Essentially, it is a recovery of the residual spermine in the aqueous phase, which improves the utilization rate of materials. The residual spermine in the aqueous phase is not wasted, reducing the loss in the spermine recovery process and improving the environmental and economic benefits of the spermine preparation process.

[0013] A further feature of this invention is that a return port 2 is provided at the upper end of the dwell vessel, and the feed port 4, the return port 2, and the discharge port 2 are connected together.

[0014] By adopting the above technical solution, a return port 2 is provided at the upper end of the retention vessel, and the upper outlet 2, lower outlet 2, and inlet 4 of the oil-water separator 1 are connected. When the solution in the retention vessel rises through the lower outlet and the retention vessel pump, part of it enters the oil-water separator 1 through inlet 4 for oil-water separation, and part of it flows back to the retention vessel through the return outlet 2 at the upper end of the retention vessel. This makes the reaction between the ammonia water and trimethyl ester in the solution more complete, the efficiency of removing trimethyl ester is higher, and the purification rate of spermine is higher.

[0015] A further feature of this invention is that the washing device also includes a washing vessel, with a feed inlet three at the upper end of the washing vessel, which is connected to the upper organic phase discharge outlet one, and a discharge outlet three at the lower end of the washing vessel, which is connected to a washing vessel pump.

[0016] By adopting the above technical solution, the organic phase and process water in the lower layer of the oil-water separator directly enter the washing tank through the feed inlet three of the washing tank, and wash the organic phase separated by the oil-water separator one with water, further removing water-soluble impurities in the organic phase obtained by the oil-water separator one, and further improving the purification efficiency.

[0017] The present invention is further configured as follows: a liquid level sensor 3 is provided on the side wall of the washing vessel, and the washing device also includes an oil-water separator 2. The oil-water separator 2 is provided with an inlet 5 and two outlets. The inlet 5 and the outlet 3 are connected through a pipe 3. A valve 3 is provided in the pipe 3 near the oil-water separator 2. The two outlets include an aqueous phase outlet 2 and an organic phase outlet 2. The organic phase outlet 2 is connected to a dehydration unit, and the aqueous phase outlet 2 is connected to an extraction unit.

[0018] By adopting the above technical solution, after thorough washing, the solution in the washing tank enters the second oil-water separator for another oil-water separation. The aqueous phase separated by the second oil-water separator enters the extraction unit and is extracted to obtain spermine; the organic phase enters the dehydration unit and is dehydrated to obtain spermine.

[0019] A further feature of this invention is that the upper end of the washing vessel is provided with a return port three, and the inlet five, the return port three, and the outlet three are connected together.

[0020] By adopting the above technical solution, a return port three is provided at the upper end of the washing tank, and the upper discharge port three, the lower discharge port three, and the inlet five of the oil-water separator two are connected. When the solution in the washing tank rises through the lower discharge port three and the washing tank pump, part of it enters the oil-water separator two through the inlet five of the oil-water separator two for oil-water separation, and part of it flows back to the washing tank through the return discharge port three at the upper end of the washing tank. This makes the process water and spermine in the solution mix more thoroughly, and the trimethyl ester in the spermine can dissolve to the maximum extent in the process water, resulting in higher efficiency in removing trimethyl ester and higher purification rate of spermine.

[0021] The beneficial effects of this utility model are: 1. Compared with the traditional method of partially removing trimethyl ester through thin-film evaporation, this application utilizes the reaction of ammonia water with trimethyl ester to achieve the technical effect of removing trimethyl ester. The reaction does not need to reach a very high temperature (the boiling point of trimethyl ester), only the temperature at which ammonia water reacts with trimethyl ester is required. Therefore, it will not carry away some material, causing a loss of refined amine recovery rate and improving the purification rate of crude amine.

[0022] 2. The spermine concentration detection device monitors the spermine concentration at one outlet in real time. When the spermine concentration at the outlet reaches 97% or higher, the feed rate of ammonia and crude amine will no longer be adjusted. This ensures that the reaction in the ammonia washing reactor will not result in insufficient removal of trimethyl ester and reduced purity due to the reactant feed rate at inlet one being too fast and the reaction time being too short. It also prevents unnecessary extension of the reaction time due to the reactant feed rate at inlet one being too slow.

[0023] 3. By adopting the above technical solution, valve one will only open when the liquid level in the ammonia washing tank reaches the height of level sensor one, allowing the solution in the ammonia washing tank to enter the residence tank. This ensures the effective utilization of the space inside the ammonia washing tank and prevents most of the space inside the ammonia washing tank from being empty during liquid flow. Stirring inside the residence tank makes the reaction more complete, allowing the trimethyl ester in the crude amine to react more fully with the ammonia water in the residence tank.

[0024] 4. By adopting the above technical solution, a return port is provided at the upper end of the ammonia washing tank. The return port, discharge port, and inlet of the residence tank are connected. When the solution in the ammonia washing tank rises through the lower discharge port and the ammonia washing tank pump, part of it enters the residence tank through the inlet of the residence tank for stirring, and part of it flows back to the ammonia washing tank through the upper discharge port. This makes the ammonia water in the solution come into more complete contact with trimethyl ester, resulting in higher efficiency in removing trimethyl ester and higher purification rate of spermine.

[0025] 5. By adopting the above technical solution, after the reaction solution is separated into oil and water in the oil-water separator, the upper aqueous phase containing residual spermine flows directly to the reaction vessel of the crude amine preparation stage. Therefore, the upper aqueous phase is directly connected to the upstream reaction unit vessel. The aqueous phase separated by the oil-water separator enters the ammonia washing kettle along with the crude amine prepared by the crude amine preparation. There will be no continuous generation of waste liquid that needs to be discharged immediately. Essentially, it is a recovery of the residual spermine in the aqueous phase, which improves the utilization rate of materials. The residual spermine in the aqueous phase will not be wasted, reducing the loss in the spermine recovery process and improving the environmental and economic benefits of the spermine preparation process. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the present invention.

[0028] In the diagram, 1 is the ammonia washing tank; 11 is the ammonia washing tank pump; 2 is the residence tank; 21 is the residence tank pump; 3 is the washing tank; 31 is the washing tank pump; 4 is the oil-water separator one; and 5 is the oil-water separator two. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The specific structure of this utility model: A processing device for improving the quality of produced spermine includes an ammonia washing device, a water washing device, and an oil-water separation device. The ammonia washing device and the water washing device are connected through the oil-water separation device. The ammonia washing device includes an ammonia washing kettle 1, with a heating device below the ammonia washing kettle 1. The ammonia washing kettle 1 has an inlet and a return outlet at its upper end and an outlet at its lower end. An ammonia washing kettle pump 11 is connected to the outlet. The inlet is connected to a pipeline for supplying crude amine and a pipeline for supplying ammonia water. A spermine concentration detection device is installed at the outlet.

[0031] Furthermore, a liquid level sensor is provided on the side wall of the ammonia washing tank 1. The ammonia washing device also includes a residence tank 2. A heating device is provided below the residence tank 2. A feed inlet 2 and a return outlet 2 are provided at the upper end of the residence tank 2. A discharge outlet 2 is provided at the lower end of the residence tank 2. A residence tank pump 21 is connected to the discharge outlet 2. The feed inlet 2 and the discharge outlet 1 are connected through a pipeline 1. A valve 1 is provided at the end of the pipeline 1 near the feed inlet 2. The return outlet 1, the feed inlet 2, the return outlet 1, and the discharge outlet 1 are connected.

[0032] Furthermore, a level sensor is installed on the side wall of the retention vessel 2. The washing device includes an oil-water separator 4, which has an inlet 4 and two outlets. The oil-water separator 4 is connected to the outlets via a pipe 2. A valve 2 and a return port 2 are installed at one end of the pipe 2 near the inlet 4 of the oil-water separator 4. The inlet 4, return port 2, and outlet 2 are connected. The two outlets include an aqueous phase outlet 1 and an organic phase outlet 1. The organic phase outlet 1 is connected to the washing device, and the aqueous phase outlet 1 is connected to the reaction unit for preparing crude amine in the upstream process.

[0033] Furthermore, the washing device also includes a washing tank 3. The upper end of the washing tank 3 is provided with a feed inlet 3 and a return inlet 3. The feed inlet 3 is connected to the upper organic phase discharge outlet 1. The lower end of the washing tank 3 is provided with a discharge outlet 3. The discharge outlet 3 is connected to the washing tank pump 31.

[0034] Furthermore, a liquid level sensor is provided on the side wall of the washing vessel 3. The washing device also includes an oil-water separator 2 5. The oil-water separator 2 5 has an inlet 5 and two outlets. The inlet 5 and the outlet 3 are connected by a pipe 3. A valve 3 and a return port 3 are provided on the side of the pipe 3 near the oil-water separator 2 5. The inlet 5, the return port 3, and the outlet 3 are connected. The two outlets include an aqueous phase outlet 2 and an organic phase outlet 2. The organic phase outlet 2 is connected to a dehydration unit, and the aqueous phase outlet 2 is connected to an extraction unit.

[0035] Process Flow Ammonia washing stage: In the upstream reaction unit of this device, monochloride reacts with ammonia water to produce crude amine. The crude amine enters ammonia washing tank 1 through a corresponding pipe from the upper inlet. At the same time, ammonia water enters ammonia washing tank 1 through another pipe from the upper inlet. When the concentration of refined amine at the outlet of ammonia washing tank 1 reaches 97% or more, the feed flow rate of crude amine and ammonia water remains unchanged. The stirring device in ammonia washing tank 1 stirs the solution. Under heating conditions, ammonia water reacts with trimethyl ester in crude amine to remove trimethyl ester impurities from the crude amine. Furthermore, the reaction solution is pumped by ammonia washing tank pump 11 from the lower outlet and then refluxed back into ammonia washing tank 1 through the upper return port. The reflux process and the stirring process ensure more thorough contact between ammonia water and crude amine, resulting in a faster reaction rate and higher efficiency in removing impurities.

[0036] When the liquid level in ammonia washing tank 1 reaches the height of level sensor 1, valve 1 in pipeline 1 opens, and the solution flowing out from the lower outlet of ammonia washing tank 1 is divided into two parts. One part flows back into ammonia washing tank 1, and the other part flows into residence tank 2. The stirring device in residence tank 2 stirs the solution. Under heating conditions, ammonia water and trimethyl ester in crude amine continue to react. At the same time, the solution in residence tank 2 flows out from the lower outlet 2 and flows back into residence tank 2 through the upper return outlet 2, driven by residence tank pump 21. The process of the solution entering residence tank 2 prolongs the reaction time, and the stirring and reflux process in residence tank 2 accelerates the reaction rate, making the reaction between ammonia water and crude amine more complete, the removal of impurities more complete, and the purification rate of refined amine higher.

[0037] First oil-water separation stage: When the liquid level in the residence vessel 2 does not reach the level indicated by the level sensor, valve 2 in pipeline 2 opens, and the solution flowing out through the outlet 2 at the lower end of the residence vessel 2 is divided into two parts. One part flows back into the residence vessel 2, and the other part flows to the oil-water separator 4. In the oil-water separator 4, the spermine and the aqueous phase are separated into upper and lower parts. Because the upper aqueous phase contains some spermine, it flows to the upstream reaction unit of this device, and finally enters the ammonia washing vessel 1 along with the crude amine, the reaction product of the upstream reaction unit. The spermine layer at the lower end of the oil-water separator 4 flows directly into the washing vessel 3 through the feed inlet 3 at the upper end of the washing vessel 3.

[0038] Washing stage: While the spermine layer in the lower layer of the oil-water separator 4 is directly fed into the washing tank 3 through the feed inlet 3 at the upper end of the washing tank 3, process water is added through the feed inlet 3 of the washing tank 3. The washing tank 3 mixes the spermine and process water evenly. The water-soluble impurities remaining in the spermine return to the process water. The mixed solution of spermine and process water flows back into the washing tank 3 through the discharge outlet 3 at the lower end of the washing tank 3, powered by the washing tank pump 31, and through the return outlet 3 at the upper end of the washing tank 3. The reflux process and the stirring process make the mixed solution more thoroughly mixed, and the water-soluble impurities in the spermine can enter the process water more quickly and in greater quantities, resulting in a higher purification rate of spermine.

[0039] Second oil-water separation stage: When the height of the mixed solution in the washing vessel 3 reaches the position of the level sensor 3, the valve 3 in the channel 3 is opened, and the solution flowing out through the discharge port 3 at the lower end of the washing vessel 3 is divided into two parts. One part flows back into the washing vessel 3, and the other part flows to the oil-water separator 2 5. In the oil-water separator 2 5, the spermine and the aqueous phase are separated into upper and lower parts. Because the upper aqueous phase contains some spermine, it is directed to the extraction unit, where the residual spermine is extracted. The spermine layer in the lower layer of the oil-water separator 4 is directed to the dehydration unit to remove the residual water in the spermine, thereby obtaining spermine with a purity of over 98%.

[0040] Principle Explanation The ammonia washing reactor 1 has a certain space. The reaction begins as soon as ammonia water and crude amine enter the reactor. The design of the ammonia washing reactor 1 ensures that when the liquid level reaches the height indicated by the level sensor, the refined amine content at the lower outlet of the ammonia washing reactor 1 reaches 97% or higher. Maintaining a constant feed flow rate of ammonia water and crude amine after ensuring this is done is to: ensure that the reaction in the ammonia washing reactor 1 does not become too short due to excessively fast reaction flow rate and a rapid rise in liquid level requiring quick discharge, resulting in incomplete reaction; and also to avoid overfilling the reaction vessel, which would prolong the reaction time and affect the purity efficiency of the refined amine. When the liquid level in the ammonia washing reactor 1 reaches the height indicated by the level sensor, the valve in pipeline 1 opens to: ensure that the solution level in the ammonia washing reactor 1 does not become too high, affecting mixing efficiency and reaction rate; and, while ensuring the above reaction conditions, maximize the space utilization within the ammonia washing reactor 1.

[0041] The residence vessel 2 has a certain space, and the reaction begins as soon as the solution enters it. Setting up residence vessel 2 ensures that when the liquid level in ammonia washing vessel 1 reaches the height of level sensor 2, the solution level will be adjusted accordingly. The concentration of spermine at the lower outlet of ammonia washing vessel 1 is over 98%. When the liquid level in ammonia washing vessel 1 reaches the height of level sensor 2, valve 2 in pipeline 2 opens to: ensure that the solution level in residence vessel 2 is not too high, which would affect mixing efficiency and reaction rate; and, while ensuring the above reaction conditions, maximize the space utilization within residence vessel 2.

[0042] There is a certain space inside the washing tank 3. Mixing begins as soon as the amine and process water enter the tank. When the liquid level in the washing tank 3 reaches the height of the level sensor 3, the valve 3 in the pipeline 1 opens to: ensure that the liquid level in the washing tank 3 is not too high, which would affect the mixing efficiency; while ensuring the above mixing conditions, maximize the space utilization rate inside the washing tank; and ensure that the mixing time is sufficient and the degree of impurity removal is high when the solution enters the oil-water separator 2 5.

[0043] The aqueous phase separated by oil-water separator 4 contains the reaction product of ammonia and trimethyl ester. This reaction product is water-soluble and does not participate in other chemical reactions. Since the aqueous solution contains some spermine, the solution enters the ammonia washing tank 1 along with the crude amine. After passing through the oil-water separator, the spermine is extracted. The above process continues during the purification of crude amine. After purification is completed, the reaction product is treated as waste liquid.

[0044] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0045] This utility model has been described through several embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A processing apparatus for improving the quality of spermine production, characterized in that: It includes an ammonia washing device, a water washing device, and an oil-water separation device. The ammonia washing device and the water washing device are connected through the oil-water separation device. The ammonia washing device includes an ammonia washing kettle (1). A heating device is provided below the ammonia washing kettle (1). The ammonia washing kettle (1) has an inlet at the upper end and an outlet at the lower end. An ammonia washing kettle pump (11) is connected to the outlet. A pipe for crude amine and a pipe for ammonia water are connected to the inlet. A refined amine concentration detection device is provided at the outlet. The ammonia washing tank (1) is equipped with a liquid level sensor on its side wall. The ammonia washing device also includes a residence tank (2). A heating device is provided below the residence tank (2). A feed inlet is provided at the upper end of the residence tank (2). A discharge outlet is provided at the lower end of the residence tank (2). A residence tank pump (21) is connected to the discharge outlet. The feed inlet is connected to the discharge outlet through a pipe. A valve is provided at the end of the pipe near the feed inlet. The ammonia washing kettle (1) is also provided with a return port 1 at the upper end, and the feed port 2, the return port 1 and the discharge port 1 are connected to each other; The side wall of the residence vessel (2) is equipped with a liquid level sensor 2. The water washing device includes an oil-water separator 1 (4). The oil-water separator 1 (4) is equipped with a feed inlet 4 and two discharge outlets. The oil-water separator 1 (4) is connected to the discharge outlets through a pipe 2. A valve 2 is provided at one end of the feed inlet 4 near the oil-water separator 1 (4) in the pipe 2. The two discharge outlets include an aqueous phase discharge outlet 1 and an organic phase discharge outlet 1. The organic phase discharge outlet 1 is connected to the water washing device. The upper end of the dwell vessel (2) is also provided with a return port 2, and the feed port 4, the return port 2 and the discharge port 2 are connected.

2. The processing apparatus for improving the quality of produced spermine according to claim 1, characterized in that: The washing device also includes a washing tank (3), the upper end of which is provided with a feed inlet three, which is connected to the organic phase outlet one mentioned above, and the lower end of which is provided with a discharge outlet three, which is connected to a washing tank pump (31).

3. The processing apparatus for improving the quality of produced spermine according to claim 2, characterized in that: The washing vessel (3) is equipped with a liquid level sensor three on its side wall. The washing device also includes an oil-water separator two (5). The oil-water separator two (5) is equipped with an inlet five and two outlets. The inlet five and the outlet three are connected through a pipe three. A valve three is provided in the pipe three near the oil-water separator two (5). The two outlets include an aqueous phase outlet two and an organic phase outlet two. The organic phase outlet two is connected to a dehydration unit, and the aqueous phase outlet two is connected to an extraction unit.

4. The processing apparatus for improving the quality of spermine production according to claim 3, characterized in that: The washing vessel (3) is also provided with a return port three at the upper end, and the feed port five, the return port three, and the discharge port three are connected.

5. The processing apparatus for improving the quality of spermine production according to claim 4, characterized in that: The aqueous phase outlet is connected to the reaction unit for preparing crude amine.

Images