A 9,10-dibromoanthracene alkali washing device

Abstract

The utility model belongs to the technical field of 9,10-dibromoanthracene alkali washing equipment, specifically a 9,10-dibromoanthracene alkali washing device, comprising a reaction container, a first solvent pipeline, a second solvent pipeline, a solution inlet pipeline, a solution outlet pipeline, a stirring device, and a pH detection head; the first solvent pipeline, the second solvent pipeline and the solution inlet pipeline are all arranged at intervals on the top of the reaction container, and the solution outlet pipeline and the pH detection head are arranged at the bottom of the reaction container; the first solvent pipeline, the second solvent pipeline and the solution inlet pipeline are all connected to a quantitative pump; the stirring device comprises a stirring shaft arranged inside the reaction container, and the stirring shaft is driven by a first motor; and the Ph detection head is electrically connected to a Ph detector.

Description

Technical Field

[0001] The utility model belongs to the technical field of 9,10-dibromoanthracene alkali washing equipment, in particular to an alkali washing device for 9,10-dibromoanthracene. Background Art

[0002] The purpose of 9,10-dibromoanthracene alkali washing is to remove impurities and impurities to purify and refine 9,10-dibromoanthracene. Alkaline washing can remove acidic impurities and impurities in organic compounds by reacting with an alkali solution.

[0003] The current alkaline washing process is as follows: (1) Add 9,10-dibromoanthracene to the reaction vessel in the amount specified in the experimental protocol; (2) Slowly add an appropriate amount of alkaline solution (such as sodium hydroxide solution) to the reaction vessel containing 9,10-dibromoanthracene. Stir the solution to ensure that the solution is evenly mixed; (3) Place the reaction vessel in a water bath or heating device and heat it to an appropriate temperature. Depending on the requirements in the experimental protocol, it is usually necessary to heat the reaction solution until it boils or reaches a certain temperature. (4) Keep stirring the solution at an appropriate temperature and perform the alkaline washing process. This step can be continued for a period of time to ensure that impurities and impurities are completely removed; (5) After the alkaline washing is completed, pour the reaction solution into a filter (such as a glass filter funnel) to remove insoluble impurities and solid residues. Collect the filtrate; (6) Pour the filtrate back into the reaction vessel and slowly add an appropriate amount of acid solution (such as hydrochloric acid solution). Stir the solution to ensure that the neutralization reaction is thorough.

[0004] Use an alkali solution of appropriate concentration for alkali washing. A too high concentration may cause a violent reaction or thickening of the solution; a too low concentration may take longer to achieve the desired washing effect; the concentration of the solution can be adjusted by diluting or concentrating the alkali solution. If the solution concentration is too high, the solution can be diluted by adding an appropriate amount of solvent (such as water); if the solution concentration is too low, the solution can be concentrated by heating the solution or using a concentrated alkali solution.

[0005] In the above operation steps, the operator manually stirs the solution. When adjusting the concentration of the alkaline solution, the operator uses a sample pipette to add the solution and manually adjusts the liquid concentration. The pipette method is not conducive to adjusting the viscosity of the solution and the operation is complicated. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an alkaline washing device for 9,10-dibromoanthracene to solve the above-mentioned technical problems.

[0007] The solution adopted by the utility model is: an alkaline washing device for 9,10-dibromoanthracene, comprising a reaction container, a first solvent pipeline, a second solvent pipeline, a solution inlet pipeline, a solution outlet pipeline, a stirring device, and a pH detection head; characterized in that: the first solvent pipeline, the second solvent pipeline and the solution inlet pipeline are all arranged at intervals on the top of the reaction container, and the solution outlet pipeline and the pH detection head are arranged at the bottom of the reaction container;

[0008] The first solvent pipeline, the second solvent pipeline and the solution inlet pipeline are all connected to a quantitative pump;

[0009] The stirring device comprises a stirring shaft disposed inside the reaction container, and the stirring shaft is driven by a first motor;

[0010] The Ph detection head is electrically connected to the Ph detector.

[0011] Preferably, the reaction container is provided with an auxiliary frame, the auxiliary frame is provided with a sliding groove, a movable plate is slidably provided in the sliding groove, a screw is rotatably connected to the movable plate in the sliding groove, the screw is driven by a second motor, a stirring shaft is rotatably connected to the movable plate, an array of stirring blades is provided at the bottom of the stirring shaft, the stirring shaft is driven by a first motor, and the first motor, the second motor and the controller are electrically connected.

[0012] Preferably, the middle portion of the reaction container is made of transparent material.

[0013] Preferably, the transparent material is a transparent glass plate.

[0014] Preferably, a base is provided at the bottom of the reaction container, and an anti-slip pad is provided on the base.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the three-dimensional view angles of the present utility model.

[0017] Figure 2 It is one of the perspectives of the three-dimensional cross-sectional view of the present utility model.

[0018] Figure 3 This is the second perspective of the three-dimensional cross-sectional view of the present invention.

[0019] Figure numerals: 1, reaction container; 2, first solvent pipeline; 3, second solvent pipeline; 4, solution inlet pipeline; 5, solution outlet pipeline; 6, pH detection head; 7, stirring shaft; 8, first motor; 9, auxiliary frame; 10, sliding groove; 11, moving plate; 12, screw; 13, stirring blade; 14, base; 15, second motor. DETAILED DESCRIPTION

[0020] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figure 1-3 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0021] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0022] Embodiment 1, a 9,10-dibromoanthracene alkaline washing device, comprising a reaction vessel 1, a first solvent pipeline 2, a second solvent pipeline 3, a solution inlet pipeline 4, a solution outlet pipeline 5, a stirring device, and a pH detection head 6; characterized in that the first solvent pipeline 2, the second solvent pipeline 3 and the solution inlet pipeline 4 are all arranged at intervals at the top of the reaction vessel 1, and the solution outlet pipeline 5 and the pH detection head 6 are arranged at the bottom of the reaction vessel 1;

[0023] The first solvent pipeline 2, the second solvent pipeline 3 and the solution inlet pipeline 4 are all connected to a quantitative pump;

[0024] The stirring device comprises a stirring shaft 7 provided inside the reaction container 1, and the stirring shaft 7 is driven by a first motor 8;

[0025] The pH detection head 6 is electrically connected to the Ph detector;

[0026] The reaction container 1 is provided with an auxiliary frame 9, the auxiliary frame 9 is provided with a sliding groove 10, a moving plate 11 is slidably provided in the sliding groove 10, a lead screw 12 threadedly connected to the moving plate 11 is rotatably connected in the sliding groove 10, the lead screw 12 is driven by a second motor 15, a stirring shaft 7 is rotatably connected to the moving plate 11, an array of stirring blades 13 is provided at the bottom of the stirring shaft 7, the stirring shaft 7 is driven by a first motor 8, and the first motor 8, the second motor 15 and the controller are electrically connected;

[0027] The middle part of the reaction container 1 is made of a transparent material; the transparent material is a transparent glass plate; a base 14 is provided at the bottom of the reaction container 1, and an anti-slip pad is provided on the base 14.

[0028] 9. Alkaline washing steps of 10-dibromoanthracene:

[0029] S1: Add 9,10-dibromoanthracene (add 9,10-dibromoanthracene to the reaction vessel. Add according to the amount specified in the experimental protocol); S2: Add alkaline solution (slowly add an appropriate amount of alkaline solution (such as sodium hydroxide solution) to the reaction vessel with 9,10-dibromoanthracene. Stir the solution to ensure that the solution is evenly mixed);

[0030] S3: heating the solution (placing the reaction vessel in a water bath or heating device and heating it to an appropriate temperature. Depending on the requirements in the experimental plan, it is usually necessary to heat the reaction solution until it boils or reaches a certain temperature);

[0031] S4: Keep stirring the solution at an appropriate temperature and perform an alkaline washing process (this step can be continued for a period of time to ensure that impurities and impurities are completely removed);

[0032] S5: After the alkaline washing is completed, the reaction solution is poured into a filter (such as a glass filter funnel) to remove insoluble impurities and solid residues, and the filtrate is collected.

[0033] S6: Pour the filtrate back into the reaction container, slowly add an appropriate amount of acid solution (such as hydrochloric acid solution), and stir the solution to ensure that the neutralization reaction is thorough.

[0034] S7: Complete and dispose of waste liquid.

[0035] When in use, the first solvent pipeline, the second solvent pipeline and the solution inlet pipeline are all connected to the quantitative pump, and the quantitative solution can be introduced by the quantitative pump. The first solvent pipeline is connected to the water tank, the second solvent pipeline is connected to the concentrated alkali solution tank, and the solution inlet pipeline is connected to the 9,10-dibromoanthracene solution;

[0036] First, 9,10-dibromoanthracene is poured into the reaction container 1, and the first motor 8 is started to drive the rotating shaft to rotate, thereby playing a stirring role. At the same time, the quantitative pump is started to allow the alkaline solution to enter the reaction container 1. After stirring for a certain period of time, the pH value is basically stable. The pH detection head 6 detects the internal pH value. According to the detected data, water can be added to the reaction container 1 for dilution or concentrated alkaline solution can be added in a quantitative manner. In this way, remote control can be achieved without close-range operation, thereby improving the safety of the test, facilitating operation, and improving the efficiency of alkaline washing;

[0037] In order to stir the solution in the reaction container 1 uniformly, the second motor 15 is started while the first motor 8 is started. Under the action of the second motor 15, the lead screw 12 rotates, so that the moving plate 11 moves vertically back and forth along the sliding groove 10 provided on the auxiliary frame 9, driving the stirring shaft 7 to move vertically back and forth in the reaction container 1. Under the action of the first motor 8, the stirring shaft 7 also rotates at the same time, so that the stirring shaft 7 and the stirring paddle move vertically back and forth in the reaction container 1 while rotating and stirring, so that the solution is stirred more uniformly;

[0038] The transparent glass plate provided in the middle of the reaction container 1 can be used to observe the condition of the solution inside in real time, which is convenient for operators to observe.

[0039] The above description is only for illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. An alkaline washing device for 9,10-dibromoanthracene, comprising a reaction container (1), a first solvent pipeline (2), a second solvent pipeline (3), a solution inlet pipeline (4), a solution outlet pipeline (5), a stirring device, and a pH detection head (6), characterized in that: The first solvent pipeline (2), the second solvent pipeline (3) and the solution inlet pipeline (4) are all arranged at intervals on the top of the reaction container (1), and the solution outlet pipeline (5) and the pH detection head (6) are arranged at the bottom of the reaction container (1); The first solvent pipeline (2), the second solvent pipeline (3) and the solution inlet pipeline (4) are all connected to a quantitative pump; The stirring device comprises a stirring shaft (7) disposed inside the reaction container (1), and the stirring shaft (7) is driven by a first motor (8); The pH detection head (6) is electrically connected to the Ph detector.

2. The alkaline washing device for 9,10-dibromoanthracene according to claim 1, characterized in that: The reaction container (1) is provided with an auxiliary frame (9), the auxiliary frame (9) is provided with a sliding groove (10), a movable plate (11) is slidably provided in the sliding groove (10), a lead screw (12) threadedly connected to the movable plate (11) is rotatably connected in the sliding groove (10), the lead screw (12) is driven by a second motor (15), a stirring shaft (7) is rotatably connected to the movable plate (11), a plurality of stirring blades (13) are provided at the bottom of the stirring shaft (7), the stirring shaft (7) is driven by a first motor (8), and the first motor (8), the second motor (15) and the controller are electrically connected.

3. The alkaline washing device for 9,10-dibromoanthracene according to claim 1, characterized in that: The middle portion of the reaction container (1) is made of transparent material.

4. The alkaline washing device for 9,10-dibromoanthracene according to claim 3, characterized in that: The transparent material is a transparent glass plate.

5. The alkaline washing device for 9,10-dibromoanthracene according to any one of claims 1 to 4, characterized in that: The bottom of the reaction container (1) is provided with a base (14), and the base (14) is provided with an anti-slip pad.

Images