Purification system of 4-aminoantipyrine

Abstract

The utility model relates to the technical field of substance purification, in particular to a 4-aminoantipyrine purification system, which comprises a first container for storing 4-aminoantipyrine, a purification component for purifying 4-aminoantipyrine and a second container for storing purified 4-aminoantipyrine, the first container is communicated with the purification assembly through a first pipeline, and a first pump used for extracting 4-aminoantipyrine from the first container and conveying the 4-aminoantipyrine into the purification assembly is arranged on the first pipeline; the second container is communicated with the first container through a second pipeline, and a second pump for extracting 4-aminoantipyrine from the second container and conveying the 4-aminoantipyrine into the first container is arranged on the second pipeline; according to the purification device, an automatic purification system is constructed, so that the purification efficiency and the purification safety are improved, and the purified 4-aminoantipyrine can meet the purification requirements of volatile phenol tests through multiple purification.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of substance purification, in particular to a 4-aminoantipyrine purification system. BACKGROUND

[0002] Water volatile phenol refers to whether phenol can be evaporated with water vapor, and can be divided into volatile phenol and non-volatile phenol, which has great harm to crops, aquatic organisms and human body. Natural water generally does not contain phenols, but due to the pollution of some industrial wastewater, natural water may contain phenolic compounds, and water volatile phenol becomes one of the must-measured items in water quality monitoring. At present, there are many methods for analyzing volatile phenol, and the most commonly used method is 4-aminoantipyrine spectrophotometry.

[0003] Because 4-aminoantipyrine is hygroscopic and oxidized to produce 4-aminoantipyrine red, the blank value of the determination is high, which affects the detection limit of the method and the accuracy and precision of the measurement. Therefore, before testing, 4-aminoantipyrine needs to be purified.

[0004] At present, the commonly used purification methods of 4-aminoantipyrine include chloroform extraction purification, ethanol purification, benzene purification, activated carbon purification, and Florisil purification, etc. For example, the utility model patent with publication number CN106243041A discloses a purification method of 4-aminoantipyrine, which uses bleaching earth instead of Florisil, adds bleaching earth into 4-aminoantipyrine solution, stirs uniformly, stands, separates, collects filtrate, and obtains purified 4-aminoantipyrine. For another example, the utility model patent with publication number CN113200917A discloses another purification method of 4-aminoantipyrine, which uses activated carbon to adsorb colloidal impurities, then filters out the activated carbon adsorbing impurities, completely removes impurities from the system, and obtains a purified solution.

[0005] The above-mentioned purification methods all use manual operation, which has the problems of long time consumption, high work intensity, and some reagents are harmful to human body in actual production, and 4-aminoantipyrine purified only once may still have defects that cannot meet the testing requirements of spectrophotometry. UTILITY MODEL CONTENT

[0006] To solve the problems in the prior art, the purpose of the utility model is to provide a 4-aminoantipyrine purification system, which improves the purification efficiency and safety by constructing an automatic purification system, and ensures that the purified 4-aminoantipyrine can meet the purification requirements of volatile phenol testing through multiple purifications.

[0007] According to the 4-aminoantipyrine purification system of the utility model, the first container, the purification assembly and the second container are connected through the first pipeline, the second pipeline and the third pipeline, and the first pump, the second pump and the third pump are arranged on the first pipeline, the second pipeline and the third pipeline respectively, so that the 4-aminoantipyrine in the first container is pumped into the purification assembly through the first pump, the 4-aminoantipyrine in the purification assembly is pumped into the second container through the second pump, and the 4-aminoantipyrine in the second container is pumped into the first container through the third pump.

[0008] Further, the 4-aminoantipyrine purification system also has the following features: the pump speed of the first pump is lower than the pump speed of the second pump.

[0009] Further, the 4-aminoantipyrine purification system also has the following features: the purification assembly comprises a cover body vertically movable and a shell arranged below the cover body; the cover body is provided with an interface for connecting the first pipeline, the shell is provided with a liquid outlet, and the second container is arranged below the liquid outlet.

[0010] Further, the 4-aminoantipyrine purification system also has the following features: the shell is internally provided with a purification part, and the purification part comprises an adsorption layer for adsorbing impurities in the 4-aminoantipyrine and a filter layer arranged below the adsorption layer.

[0011] Further, the 4-aminoantipyrine purification system also has the following features: the adsorption layer comprises an activated carbon adsorption layer and / or a Florisil adsorption layer.

[0012] Further, the 4-aminoantipyrine purification system also has the following features: the light intensity sensor is further arranged between the first container and the second container, and the light intensity sensor is signal connected with the second pump.

[0013] Further, the 4-aminoantipyrine purification system also has the following features: the light intensity sensor is further arranged between the first container and the second container, and the light intensity sensor is signal connected with the second pump.

[0014] Further, the 4-aminoantipyrine purification system provided by the utility model also can have such features: the side of the first container away from the photometric sensor and the side of the second container away from the photometric sensor are each provided with a reflection plate for enhancing light signal collection of the photometric sensor.

[0015] Further, the 4-aminoantipyrine purification system provided by the utility model also can have such features: it further comprises a first limit block for limiting displacement of the first container and a second limit block for limiting displacement of the second container.

[0016] Further, the 4-aminoantipyrine purification system provided by the utility model also can have such features: the pump speed of the second pump is five times the pump speed of the first pump.

[0017] The utility model has the advantages of:

[0018] 1. In the application, the first pump is used to extract 4-aminoantipyrine solution in the first container for primary purification, when the 4-aminoantipyrine solution in the second container still does not meet the purification requirement required by volatile phenol test, the second pump is used to extract 4-aminoantipyrine solution in the second container and deliver it back to the first container for secondary purification, and the process is repeated for multiple times until the 4-aminoantipyrine solution in the second container meets the purification requirement required by volatile phenol test. Such automatic purification system greatly improves the purification efficiency, and the whole process does not need manual intervention, improving the purification safety.

[0019] 2. In the application, the cover body vertically movable is matched with the fixed shell to form a purification assembly, when not purifying, the cover body and the shell are separated to facilitate their replacement, when purifying, the cover body and the shell are combined to form a purification assembly to purify solution.

[0020] 3. In the application, the photometric sensor is used to collect the luminosity value of 4-aminoantipyrine solution in the first container and the second container, and the two are intelligently compared to quantitatively evaluate the purification process, automatically determine whether it needs to be purified again and send a working instruction to the second pump, further improving the automation degree and purification efficiency of the whole purification system. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application. In the drawings:

[0022] Figure 1 It is the structural schematic view of the shell of the utility model.

[0023] Figure 2 It is the structural schematic view of the shell of the utility model.

[0024] In the drawing:

[0025] 1, first container;2, purification assembly;201, cover body;202, shell;203, activated carbon adsorption layer;204, Florisil adsorption layer;205, filter layer;206, liquid outlet;3, second container;4, first pipeline;5, first pump;6, second pipeline;7, second pump;801, lifting support;802, fixed support;9, luminosity sensor;10, rotary base;11, first limit block;12, second limit block;13, reflecting plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled person in the art without creative work belong to the range of protection of the utility model.

[0027] The utility model provides a kind of purification system of 4-aminoantipyrine, specific structure is as follows:

[0028] As Figure 1As shown, the purification system comprises a first container 1 for storing 4-aminoantipyrine, a purification assembly 2 for purifying 4-aminoantipyrine and a second container 3 for storing purified 4-aminoantipyrine; the first container 1 is in communication with the purification assembly 2 through a first pipeline 4, and the first pipeline 4 is provided with a first pump 5 for extracting 4-aminoantipyrine from the first container 1 and delivering it into the purification assembly 2; the second container 3 is in communication with the first container 1 through a second pipeline 6, and the second pipeline 6 is provided with a second pump 7 for extracting 4-aminoantipyrine from the second container 3 and delivering it into the first container 1. In use, the first pump 5 extracts the 4-aminoantipyrine solution in the first container 1 for primary purification, and when the 4-aminoantipyrine solution in the second container 3 still does not meet the purification requirements, the second pump 7 extracts the 4-aminoantipyrine solution in the second container 3 and delivers it back to the first container 1 for secondary purification, and through the circulation of this process multiple times of purification until the 4-aminoantipyrine solution in the second container 3 meets the required degree of purification of volatile phenol test. Such an automatic purification system greatly improves the purification efficiency, and the whole process does not need manual intervention, improving the safety of purification.

[0029] In order to ensure the normal operation of the first pipeline 4 and the second pipeline 6, the first container 1 is provided with a liquid outlet for communicating the first pipeline 4, a liquid inlet for connecting the second pipeline 6 and an air port for communicating with the atmosphere. In addition, in order to facilitate the secondary and multiple purification, the bottom of the second container 3 is designed in a funnel shape and connected with the second pump 7 through a quick connector.

[0030] Since when the pump speed of the second pump 7 is less than that of the first pump 5, the liquid in the second container 3 may be updated slowly to form a local area with low purity, therefore, the pump speed of the second pump 7 is preferably higher than that of the first pump 5, which helps to break the laminar flow structure that may be formed in the second container 3. Further, considering the requirements of solution homogenization and the economic requirements of the equipment, the pump speed of the second pump 7 is preferably five times of that of the first pump 5. In this embodiment, the pump speed of the first pump 5 is 10 ml / min, and the pump speed of the second pump 7 is 50 ml / min.

[0031] The purification assembly 2 comprises a vertically movable cover 201 and a shell 202 arranged below the cover 201, and the purification system further comprises a lifting support 801 and a fixed support 802, the cover 201 is mounted on the lifting support 801, and the shell 202 is mounted on the fixed support 802. The cover 201 is provided with an interface for connecting the first pipeline 4, and the shell 202 is provided with a liquid outlet 206, and the second container 3 is arranged below the liquid outlet 206. In order to avoid the additive in the shell 202 affecting the test result of the volatile phenol, the shell 202 is preferably made of high borosilicate glass material, and plastic material is avoided. When the purification is not performed, the lifting support 801 is at a higher height so that the cover 201 is away from the shell 202, and the cover 201 or the shell 202 can be replaced as required, and when the purification is performed, the lifting support 801 drives the cover 201 to descend, so that the cover 201 abuts against the shell 202 to form a complete purification assembly 2, thereby purifying the 4-aminoantipyrine solution.

[0032] As shown in Figure 2 , the shell 202 is provided with a purification part, and the purification part comprises an adsorption layer for adsorbing impurities in the 4-aminoantipyrine and a filter layer 205 arranged below the adsorption layer. When the shell 202 is replaced, according to the requirement, the shell 202 can be disassembled from the fixed support 802 to replace the entire shell 202, or only the adsorption layer or the filter layer 205 can be replaced. The adsorption layer comprises an activated carbon adsorption layer 203 and / or a Florisil adsorption layer 204. In a specific embodiment, the adsorption layer comprises the activated carbon adsorption layer 203 for performing the first purification on the 4-aminoantipyrine solution, and the Florisil adsorption layer 204 arranged below the activated carbon adsorption layer 203 for performing the second purification on the 4-aminoantipyrine solution. The filter layer 205 comprises a quantitative filter paper layer for filtering the 4-aminoantipyrine solution after two purification processes, and the filtered 4-aminoantipyrine solution enters the second container 3 through the liquid outlet 206. Compared with the single-layer setting of the activated carbon adsorption layer 203 or the Florisil adsorption layer 204, the present application effectively improves the purification efficiency of the solution by designing the double adsorption layer and the quantitative filter layer 205.

[0033] As shown in Figure 1 , in order to realize quantitative evaluation of the purification process and improve the automatic working efficiency of the purification system, the purification system further comprises a luminosity sensor 9 for collecting the luminosity value of the 4-aminoantipyrine solution in the first container 1 and the luminosity value of the 4-aminoantipyrine solution in the second container 3, and the luminosity sensor 9 is signal connected with the second pump 7. The luminosity sensor 9 can judge whether the 4-aminoantipyrine solution in the second container 3 meets the purification requirement by comparing the two luminosity values, and if the purification requirement is not met, the luminosity sensor 9 automatically issues an instruction through the software workstation, and the second pump 7 starts to work.

[0034] The purification system further comprises a rotating base 10 arranged between the first container 1 and the second container 3, and the photometric sensor 9 is arranged on the rotating base 10, and the rotating base 10 is provided with a first position and a second position; when the photometric sensor 9 rotates to the first position along with the rotating base 10, the photometric sensor 9 collects the light value of the first container 1; when the photometric sensor 9 rotates to the second position along with the rotating base 10, the photometric sensor 9 collects the light value of the second container 3.

[0035] The side, away from the photometric sensor 9, of the first container 1 and the side, away from the photometric sensor 9, of the second container 3 are both provided with a reflecting plate 13 for enhancing the light signal collection of the photometric sensor 9, and the reflecting plate 13 is used for reflecting the light signal, passing through the 4-aminoantipyrine solution, to the photometric sensor 9.

[0036] As shown in Figure 1 In order to avoid the displacement affecting the stability of the system, the first container 1 and the photometric sensor 9 are provided with a first limiting block 11 for limiting the displacement of the first container 1, and the second container 3 and the photometric sensor 9 are provided with a second limiting block 12 for limiting the displacement of the second container 3.

[0037] The utility model further provides a kind of 4-aminoantipyrine purification method, it is suitable for the 4-aminoantipyrine purification system described above, comprising the following steps:

[0038] S1. the first pump 5 extracts 4-aminoantipyrine from the first container 1 and is delivered to the purification assembly 2, and the purification assembly 2 is output to the second container 3 after purifying 4-aminoantipyrine;

[0039] S2. whether 4-aminoantipyrine in the second container 3 meets the purification requirement is detected, if meeting the purification requirement, purification is ended, if not meeting the purification requirement, step S3 is executed;

[0040] S3. the second pump 7 extracts 4-aminoantipyrine from the second container 3 and is delivered to the first container 1, and the above steps are recycled until meeting the purification requirement.

[0041] In the step S2, to realize the automatic determination of whether 4-aminoantipyrine solution meets the purification requirement, the process of whether 4-aminoantipyrine in the second container 3 meets the purification requirement includes:

[0042] The light value of 4-aminoantipyrine solution in the first container 1 is collected by the photometric sensor 9, and is recorded as first light value, and the light value of 4-aminoantipyrine solution in the second container 3 is collected by the photometric sensor 9, and is recorded as second light value;The contrast value of first light value and second light value is solved by the following formula:

[0043]

[0044] wherein ω represents a contrast value, C0 is a first luminosity value, and C is a second luminosity value; the relationship between the contrast value and a preset value is determined, and if the contrast value is greater than or equal to the preset value, the purification requirement is met, and if the contrast value is less than the preset value, the purification requirement is not met.

[0045] In the embodiment, the preset value is 35%. When ω≥35%, the 4-aminoantipyrine solution in the second container 3 meets the purification requirement, and the purification ends; when ω<35%, the 4-aminoantipyrine solution in the second container 3 does not meet the purification requirement, and step S3 is continuously executed.

[0046] Further, to quantitatively evaluate the purification process more carefully, when ω<35%, the following standards can also be set:

[0047] When 10%≤ω≤20%, the 4-aminoantipyrine solution needs to be purified twice again;

[0048] When 20%<ω<30%, the 4-aminoantipyrine solution needs to be purified once again.

[0049] The above-described content can be implemented individually or in various combinations, and these variants are within the protection scope of the utility model.

[0050] In the description of the utility model creation, it needs to be explained that relationship terms such as first and second and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.In the absence of more limitations, the element limited by the statement "including one" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0051] In the description of the utility model, it also needs to be explained that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In the description of the utility model, unless otherwise specified, the meaning of "several" is two or more.

[0052] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific embodiments of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can also be made, which should be regarded as falling within the scope of protection of the utility model.

Claims

1. A purification system for 4-aminoantipyrine, characterized by, The application relates to a device for purifying 4-aminoantipyrine, which comprises a first container (1) for storing 4-aminoantipyrine, a purification assembly (2) for purifying 4-aminoantipyrine and a second container (3) for storing purified 4-aminoantipyrine; the first container (1) is communicated with the purification assembly (2) through a first pipeline (4), and a first pump (5) is arranged on the first pipeline (4) and used for extracting 4-aminoantipyrine from the first container (1) and conveying the 4-aminoantipyrine into the purification assembly (2); the second container (3) is communicated with the first container (1) through a second pipeline (6), and a second pump (7) is arranged on the second pipeline (6) and used for extracting 4-aminoantipyrine from the second container (3) and conveying the 4-aminoantipyrine into the first container (1).

2. The purification system of 4-aminoantipyrine according to claim 1, characterized in that, The pump speed of the first pump (5) is lower than the pump speed of the second pump (7).

3. The purification system of 4-aminoantipyrine according to claim 1, characterized by, The purification assembly (2) comprises a vertically movable cover (201) and a shell (202) arranged below the cover (201); an interface for communicating with the first pipeline (4) is arranged on the cover (201), a liquid outlet (206) is arranged on the shell (202), and the second container (3) is arranged below the liquid outlet (206).

4. The purification system of 4-aminoantipyrine according to claim 3, characterized in that, A purification part is arranged in the shell (202), and the purification part comprises an adsorption layer for adsorbing impurities in 4-aminoantipyrine and a filter layer (205) arranged below the adsorption layer.

5. The purification system of 4-aminoantipyrine according to claim 4, characterized in that, The adsorption layer comprises an activated carbon adsorption layer (203) and / or a Florisil adsorption layer (204).

6. The purification system of 4-aminoantipyrine according to claim 1, characterized by, A luminosity sensor (9) for collecting the luminosity value of 4-aminoantipyrine in the first container (1) and the luminosity value of 4-aminoantipyrine in the second container (3) is further arranged, and the luminosity sensor (9) is signal-connected with the second pump (7).

7. The purification system of 4-aminoantipyrine according to claim 6, characterized by, A rotating base (10) is further arranged between the first container (1) and the second container (3), and the luminosity sensor (9) is arranged on the rotating base (10); when the luminosity sensor (9) rotates to a first position along with the rotating base (10), the luminosity sensor (9) collects the luminosity value of the first container (1); when the luminosity sensor (9) rotates to a second position along with the rotating base (10), the luminosity sensor (9) collects the luminosity value of the second container (3).

8. The purification system of 4-aminoantipyrine according to claim 7, characterized in that, Reflective plates (13) are arranged on the side, away from the luminosity sensor (9), of the first container (1) and the side, away from the luminosity sensor (9), of the second container (3) to enhance the light signal collection of the luminosity sensor (9).

9. The purification system of 4-aminoantipyrine according to claim 1, characterized by, First limiting blocks (11) for limiting the displacement of the first container (1) and second limiting blocks (12) for limiting the displacement of the second container (3) are further arranged.

10. The purification system of 4-aminoantipyrine according to claim 1, characterized by, The pump speed of the second pump (7) is five times the pump speed of the first pump (5).

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