Novel extraction device suitable for extracting and separating dimethyl dichlorosilane

Abstract

The utility model discloses a novel extraction device suitable for extracting and separating dimethyl dichlorosilane. The novel extraction device comprises a tank body, one side of the tank body is communicated with a pipette, and the other end of the pipette is communicated with an external mixing device; the inner base is positioned at the lower end in the tank body; the collecting bin is located in the inner base and can move up and down. A collecting disc is arranged outside the upper end of the collecting bin; the longitudinal rod is in threaded connection with the upper end of the tank body; a hose penetrates through the longitudinal rod, and the upper end of the hose extends out of the longitudinal rod. According to the utility model, the situation of intersection surface mixing possibly caused when exporting from the lower end can be avoided, and the exporting purity can be improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, specifically to a novel extraction device suitable for the extraction and separation of dimethyldichlorosilane. Background Technology

[0002] Dimethyldichlorosilane is an important organosilicon compound, soluble in organic solvents such as benzene and diethyl ether. It decomposes rapidly in water, producing corrosive fumes. Dimethyldichlorosilane exhibits high reactivity, especially when reacting with compounds containing active hydrogen, where it rapidly undergoes hydrolysis to produce the corresponding siloxanes and chlorides.

[0003] In the extraction and separation of dimethyldichlorosilane, the liquid mixture to be separated needs to be fused with the corresponding extractant to form a two-phase system of feed phase and extract phase. The differences in the distribution of components between the two phases are then utilized to allow certain components to enter the extract phase in greater quantities from the feed phase, thus achieving separation of the mixture. During dimethyldichlorosilane extraction, after the mixture is allowed to settle, it will separate into upper and lower layers due to differences in density, requiring the two liquid phases to be exported separately. However, in the export process, existing techniques typically export the extract from the bottom first, leaving the feed phase, and then exporting the feed phase last. But as the overall liquid level drops, the upper and lower liquid layers experience displacement and vibration, leading to slight mixing again at the contact surface, affecting the purity of the liquid and thus the extraction accuracy of dimethyldichlorosilane. Therefore, there is room for technological improvement. Utility Model Content

[0004] This invention aims to solve the aforementioned technical problem that, as the overall liquid level drops, the liquid in the upper and lower layers will vibrate due to displacement, causing slight mixing at the contact surface of the upper and lower liquid layers. It provides a novel extraction device suitable for the extraction and separation of dimethyldichlorosilane.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a novel extraction device suitable for the extraction and separation of dimethyldichlorosilane, comprising a tank; a pipette is connected to one side of the tank, and the other end of the pipette is connected to an external mixing device; further comprising:

[0006] Inner base; located at the lower end of the tank body; the inner base has an annular cross-section, and its outer side is fixedly connected to the inner side of the tank body;

[0007] Collection chamber; located inside the inner base and capable of moving up and down; a collection plate is provided on the outer side of the upper end of the collection chamber, and an annular groove is provided on the collection plate near the outer edge, with several collection holes in the groove; several liquid guiding grooves are provided on the collection plate that can connect with the groove, and the other end of each liquid guiding groove extends to the collection chamber.

[0008] A longitudinal rod is threaded to the upper end of the tank and extends into the collection chamber at its lower end. The longitudinal rod is hollow inside and has a flexible hose inserted through it, with the upper end of the flexible hose extending out of the longitudinal rod.

[0009] Viewing window; located on the front of the tank.

[0010] Furthermore, the can body includes a can body and a cover body. The upper end of the can body is provided with a limiting neck, and the cover body is located outside the limiting neck. The cover body is provided with a threaded hole that can be threadedly connected to the longitudinal rod.

[0011] Furthermore, the lower end of the inner base is provided with several springs, and the upper end of the springs is connected to the collection chamber.

[0012] Furthermore, the inner bottom surface of the liquid guiding channel slopes upward from one end near the collection chamber to the other end.

[0013] Furthermore, a handwheel is provided on the outer side of the upper end of the longitudinal rod.

[0014] Furthermore, the lower ends of both the longitudinal rod and the hose are inclined.

[0015] Furthermore, the interface between the pipette and the tank is located between the inner base and the collection chamber.

[0016] The advantages of this utility model compared with the prior art are as follows:

[0017] After the mixture has settled and separated, the collection tray is slowly moved to the liquid separation line between the upper and lower layers. At this point, the upper liquid is located in the collection chamber and above the collection tray. It can be extracted through a hose and an external pump set, which can avoid the mixing of the intersection surface that may occur when it is discharged from the bottom, thus improving the purity of the discharged liquid. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is an internal cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the collection bin and collection tray structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the inner base structure of this utility model.

[0022] As shown in the figure: 1. Tank body, 2. Pipette, 3. Inner base, 4. Collection chamber, 5. Collection tray, 6. Groove, 7. Collection hole, 8. Liquid guide groove, 9. Spring, 10. Longitudinal rod, 11. Hose, 12. Handwheel, 13. Viewing window. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Example 1, in conjunction with Appendix Figure 1 A novel extraction device for the extraction and separation of dimethyldichlorosilane includes a tank 1; the tank 1 includes a tank body and a cover, the upper end of the tank body is provided with a limiting neck, the cover is located outside the limiting neck, the limiting neck and the cover can be separated, making it easy to remove and inspect.

[0025] Combined with appendix Figure 1 , 2 One side of the tank 1 is connected to a pipette 2, and the other end of the pipette 2 is connected to an external mixing device. The interface between the pipette 2 and the tank 1 is located between the inner base 3 and the collection chamber 4. After the initial mixture and the extractant (such as tripropylamine) are mixed evenly in the external mixing device, it is transferred to the tank 1 through the pipette 2 for standing.

[0026] Combined with appendix Figure 1 , 2 4. It also includes an inner base 3; located at the lower end of the tank body 1; the inner base 3 has an annular cross-section, and its outer side is fixedly connected to the inner side of the tank body 1. The longitudinal section of the inner base 3 is T-shaped, which can reduce the area occupied; the annular shape of the inner base 3 can be used to accommodate the collection chamber 4 mentioned below.

[0027] Combined with appendix Figure 1 , 2 3, also includes a collection chamber 4; located inside the inner base 3 and capable of moving up and down; a collection plate 5 is provided on the outer side of the upper end of the collection chamber 4, and an annular groove 6 is provided on the collection plate 5 near the outer edge, and a number of collection holes 7 are provided in the groove 6; a number of liquid guiding grooves 8 are provided on the collection plate 5 that can be connected to the groove 6, and the other end of each liquid guiding groove 8 extends to the collection chamber 4.

[0028] In addition, the inner bottom surface of the liquid guiding tank 8 is inclined upward from one end near the collection chamber 4 to the other end, with an inclination angle of 0-5 degrees. This facilitates the collection of liquid and avoids dead corners caused by excessive inclination angle, where some liquid cannot flow into the collection chamber 4.

[0029] Combined with appendix Figure 1 , 2It also includes a longitudinal rod 10; the longitudinal rod 10 is threaded to the upper end of the tank body 1, and the cover of the tank body 1 is provided with a threaded hole that can be threaded to the longitudinal rod 10, and the lower end of the longitudinal rod 10 extends into the collection chamber 4; thus, when the longitudinal rod 10 is rotated, the longitudinal rod 10 will move up and down inside the tank body 1, thereby driving the collection chamber 4 to move downward; during the downward movement of the collection chamber 4, the liquid near the upper part overflows upward from the collection hole 7 of the collection plate 5 and enters the collection chamber 4. After the collection plate 5 reaches the stratification point of the upper and lower liquids, the upper liquid can be extracted; the lower end of the inner base 3 is provided with several springs 9, and the upper end of the springs 9 is connected to the collection chamber 4. After the extraction is completed, the longitudinal rod 10 is rotated upward, the collection chamber 4 loses its restriction, and can be reset upward under the reset action of the springs 9;

[0030] The longitudinal rod 10 is hollow inside and has a flexible hose 11 inserted through it. The upper end of the flexible hose 11 extends out of the longitudinal rod 10. The lower ends of both the longitudinal rod 10 and the flexible hose 11 are inclined. After the mixture in the tank 1 is separated into layers, the liquid material is located at the top and the extract is located at the bottom. The liquid material entering the collection chamber 4 can be discharged through the external pump body connected to the flexible hose 11. Even if the flexible hose 11 is slightly displaced during operation, the extract will not be extracted.

[0031] In addition, a handwheel 12 is provided on the outer side of the upper end of the longitudinal rod 10, which facilitates the application of force to drive the longitudinal rod 10 to rotate.

[0032] Combined with appendix Figure 1 It also includes a viewing window 13, located on the front of the tank 1, which facilitates observation of liquid level changes during the movement of the collection chamber 4 and the extraction process.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel extraction apparatus suitable for the extraction separation of dimethyldichlorosilane comprising a tank body (1); characterised in that: The tank body (1) one side is communicated with pipette (2), the other end of pipette (2) and external communication mixing device are communicated;Still include: Inner base (3);Located in the tank body (1) inner lower end;The inner base (3) cross section is annular, its outer side and the inner side of tank body (1) fixed connection; Collecting bin (4);Located in inner base (3) and can move up and down;The collecting bin (4) upper end outer side is equipped with collecting disc (5), and the collecting disc (5) is equipped with annular recess (6) on and close to the outer edge, is equipped with a plurality of collecting holes (7) in recess (6);The collecting disc (5) is equipped with a plurality of liquid guide groove (8) that can be connected with recess (6), the other end of liquid guide groove (8) extends to collecting bin (4); Longitudinal rod (10);Screw connection in the upper end of tank body (1), the lower end extends into collecting bin (4);The longitudinal rod (10) is hollow inside, and is provided with hose (11), and the upper end of hose (11) extends out of longitudinal rod (10); Visual window (13);Located in the front of tank body (1).

2. A novel extraction apparatus suitable for the extraction and separation of dimethyldichlorosilane as claimed in claim 1, characterized in that: The tank body (1) includes tank body and cover body, the upper end of tank body is equipped with limiting neck, and the cover body is located in the outer side of limiting neck;The cover body is equipped with the screw hole that can be connected with longitudinal rod (10) screw thread.

3. A novel extraction apparatus suitable for extraction and separation of dimethyldichlorosilane as claimed in claim 1, wherein: The lower end of inner base (3) is equipped with a plurality of springs (9), and the upper end of spring (9) is connected with collecting bin (4).

4. A novel extraction apparatus suitable for the extraction and separation of dimethyldichlorosilane as claimed in claim 1, wherein: The inner bottom surface of liquid guide groove (8) is inclined upward from one end close to collecting bin (4) to the other end.

5. A novel extraction apparatus suitable for extraction and separation of dimethyldichlorosilane as claimed in claim 1, wherein: The upper end of longitudinal rod (10) outer side is equipped with hand wheel (12).

6. A novel extraction apparatus suitable for the extraction and separation of dimethyldichlorosilane as claimed in claim 1, wherein: The lower end of longitudinal rod (10), hose (11) is inclined.

7. A novel extraction apparatus suitable for extraction and separation of dimethyldichlorosilane as claimed in claim 1, wherein: The interface of pipette (2) and tank body (1) is located between inner base (3) and collecting bin (4).

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