Solid-liquid reaction device and method

Abstract

A solid-liquid reaction device relates to the field of gas generation, solid dissolution and chemical synthesis, and comprises a gas blowing ball, a connecting gas pipe, a liquid material container, a connecting liquid pipe, a liquid flow regulator, a solid-liquid reactor, a gas release valve, a gas conduit, a filter layer and an inner container, wherein the air blowing ball is communicated with an upper gas space of the liquid material container through a connecting gas pipe, the bottom of the liquid material container is connected with a connecting liquid pipe and is communicated with the solid-liquid reactor, an inner container is arranged in the solid-liquid reactor, and through holes are formed in the outer wall of the inner container. Under the action of air pressure, a liquid material is injected into the solid-liquid reactor through the connecting liquid pipe, and the liquid material is in contact with a solid medicament through the through holes in the wall of the inner container and then chemically reacts.

Description

Technical Field

[0001] The invention relates to a solid-liquid reaction device and method, and in particular to chemical engineering fields such as gas generation, solid dissolution and chemical synthesis related to solid-liquid reaction. Background Art

[0002] The reaction between solid and liquid is usually used in processes such as gas generation, solid dissolution and chemical synthesis. Since there is a contact interface between solid and liquid during the reaction process, according to chemical principles, the reaction rate is affected by the concentration and diffusion rate of the reactants. In order to speed up the reaction rate, the commonly used methods are: stirring the liquid and solid in the reactor to make them fully contact, or using flowing liquid to wash and dissolve the soluble solids crystallized on the surface of the pipe, so that the fresh liquid moves to the solid-liquid contact interface and removes the products produced by the reaction.

[0003] However, when a liquid (or slurry) is reacted with a solid object in a narrow solid-liquid contact surface such as in a test tube, the solid-liquid reaction progresses slowly and is difficult to control due to the small reaction cross section without external effects such as stirring. In order to speed up the reaction, it is often necessary to constantly shake the test tube, or to pour out the liquid generated after the reaction and then add new liquid, which is time-consuming and laborious.

[0004] The present invention provides a solid-liquid reaction device and method to accelerate and control the solid-liquid reaction to solve the above-mentioned problems. Summary of the invention

[0005] A solid-liquid reaction device, characterized in that the reaction device consists of a balloon 1, a connecting air pipe 2, a liquid material container 3, a connecting liquid pipe 4, a liquid flow regulator 5, a solid-liquid reactor 6, a gas release valve 7, a gas conduit 8, a filter layer 9 and an inner container 10, wherein the balloon 1 is connected to the upper gas space of the liquid material container 3 through the connecting air pipe 2, the middle and lower parts of the liquid material container 3 are loaded with liquid material 13 required for the reaction, the lower bottom of the liquid material container 3 is connected to the solid-liquid reactor 6 by a connecting liquid pipe 4, the solid-liquid reactor 6 is provided with an inner container 10, the inner container is loaded with solid material 11, the outer wall of the inner container is provided with a through hole 12, the upper space of the solid-liquid reactor is connected to the gas conduit 8, the connecting liquid pipe 4 is provided with a liquid flow regulator 5, and the gas conduit 8 is provided with a gas release valve 7.

[0006] The shape of the solid-liquid reactor is generally a straight cylinder, and the volume can be appropriately larger to receive all liquid agents and reaction products, and also to facilitate the dilution of the reaction gas. The liquid discharge port connecting the liquid pipe is generally close to the bottom of the solid-liquid reactor 6, such as 5-15mm, so that the solid-liquid reaction starts from the bottom. The amount of liquid added can be adjusted by adjusting the liquid agent flow meter. Generally, three types of flow rates, large, medium and small, can be set, so that the solid-liquid reaction progress can be indirectly controlled, which can be specifically set as needed. The lower end of the inner container is fixed to the bottom of the outer container, and the upper end can be opened. A certain number of through holes are provided on the inner container cylinder at a certain distance from left to right and up and down, so that solid-liquid contact, and the size and number of the openings can be set as needed, and the preferred aperture is 1 / 10-1 / 4 of the inner container diameter.

[0007] When the solid-liquid reaction device is used, the liquid flow regulator 5 and the gas release valve 7 are first opened, and then the liquid material container 3 is inflated through the inflation ball 1. Under the action of gas pressure, the liquid material is injected into the bottom of the annular space between the inner wall of the solid-liquid reactor and the outer wall of the inner container through the connecting liquid pipe 4. The liquid material contacts the solid medicine through the through holes on the inner container wall to produce a chemical reaction. The gas generated during the reaction can be demisted by the filter layer and then led out from the gas conduit at the top of the solid-liquid reactor. The liquid material can be added continuously or intermittently, so that the liquid contacts the solid material to react. As the reaction proceeds, the solid dissolves, and the solid-liquid contact surface gradually moves from bottom to top until the reaction is completed.

[0008] The solid-liquid reactor of the present invention can be applied to chemical unit operation processes such as gas generation, solid dissolution and chemical synthesis related to solid-liquid reaction, such as the reaction of solid carbonate with dilute hydrochloric acid: CaCO3+ 2HCl → CaCl2 + H2O + CO2↑ (1) Solid copper hydroxide dissolves in sulfuric acid: Cu(OH)2 + H2SO4 → CuSO4 + 2H2O (2) And the reaction of sodium carbonate solution with solid ferric chloride and nitrosyl ferric chloride: 3Na2CO3 + 2FeCl3 + 3H2O → 2Fe(OH)3 + 6NaCl + 3CO2↑ (3) Fe(NO)Cl3 + H2O → FeCl3 + NO↑ + H2O (4)

[0009] Compared with the prior art, the present invention divides the solid-liquid reactor into inner and outer containers, and injects the liquid material into the bottom of the annular space between the inner wall of the solid-liquid reactor and the outer wall of the inner container by compressed air, and contacts the solid medicine through the holes on the wall of the inner container, so that the reaction between the solid and the liquid can proceed from bottom to top, thereby achieving the purpose of accelerating and controlling the progress of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of a solid-liquid reaction device.

[0011] Explanation of the figure numbers: 1 inflation ball; 2 connecting gas pipe; 3 liquid material container; 4 connecting liquid pipe; 5 liquid flow regulator; 6 solid-liquid reactor; 7 gas release valve; 8 gas conduit; 9 filter layer; 10 inner container; 11; solid material; 12 through hole; 13 liquid material. Implementation

[0012] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] A solid-liquid reaction device such as Figure 1 The reaction device mainly comprises a balloon 1, a connecting air pipe 2, a liquid material container 3, a connecting liquid pipe 4, a liquid flow regulator 5, a solid-liquid reactor 6, a gas release valve 7, a gas conduit 8, a filter layer 9 and an inner container 10, wherein the balloon 1 is connected to the upper gas space of the liquid material container 3 through the connecting air pipe 2, the middle and lower parts of the liquid material container 3 are loaded with liquid materials 13 required for the reaction, the lower end of the liquid material container 3 is connected to the solid-liquid reactor 6 by a connecting liquid pipe 4, the inner container 10 is arranged in the solid-liquid reactor 6, the inner container is loaded with solid materials 11, through holes 12 are opened on the outer wall of the inner container at a certain interval, the upper space of the solid-liquid reactor is connected to the gas conduit 8, the gas generated by the solid-liquid reaction is discharged from the gas conduit 8 after passing through the filter layer 9, the connecting liquid pipe 4 also has a liquid material flow regulator 5, the gas conduit 8 is provided with a gas release valve 7, and the liquid discharge port of the connecting liquid pipe 4 is close to the bottom of the solid-liquid reactor 6.

[0014] When the solid-liquid reaction device is used, the liquid flow regulator 5 and the gas release valve 7 are first opened, and then air is blown into the liquid material container 3 through the blowing ball 1, so that the liquid material is injected into the bottom of the annular space between the inner wall of the solid-liquid reactor and the outer wall of the inner container through the connecting liquid pipe 4. The liquid material contacts the solid medicine through the through holes on the wall of the inner container to produce a chemical reaction. The gas generated in the reaction process is demisted by the filter layer and then discharged from the gas duct at the upper part of the solid-liquid reactor.

[0015] Example 1: Using Figure 1The solid-liquid reaction device shown. The solid-liquid reactor, liquid and solid medicine containers are all cylindrical, made of polyethylene plastic (HDPE), the connecting air pipe, connecting liquid pipe and gas conduit are plastic pipes, the pipe diameters are all Φ8mm, the discharge outlet of the connecting liquid pipe is about 5mm away from the bottom of the solid-liquid reactor, the diameter of the liquid medicine container is about Φ80mm, the height is about 120mm, the diameter of the solid-liquid reactor is about Φ100mm, the height is about 150mm, the filter layer is absorbent cotton, the thickness is about 20mm, the diameter of the inner container is about Φ30mm, the height is about 80mm, and the inner container wall is opened from top to bottom. 5 rows of liquid discharge holes are opened, 3 holes are arranged symmetrically in each row, the hole diameter is about Φ6mm, the outer diameter of the lower end is Φ60mm, the bottom row of holes is about 5mm away from the bottom of the container, and the distance between two adjacent rows of holes is about 15mm. The inner container is filled with ferric chloride hexahydrate solidifying material, the filling height is about 60mm, the liquid material is sodium carbonate solution with a mass concentration of about 15%, the liquid addition flow rate is about 8mL / min, the room temperature is about 25°C, the carbon dioxide gas released during the reaction is discharged through the gas duct, and the time required for the reaction to complete is about 20min.

[0016] Example 2: The solid material is calcium carbonate, the filling height in the inner container is about 60mm, the liquid material is a dilute sulfuric acid solution with a mass concentration of about 10%, the liquid addition flow rate is about 10mL / min, and the other conditions are the same as in Example 1. The reaction is completed after the solid material is completely dissolved, and the time is about 10min.

[0017] Example 3: The solid agent is composed of about 0.6% nitrosoferric chloride (calculated as Fe(NO)Cl3), about 10% water, and the rest is ferric chloride. The liquid agent is a sodium carbonate solution with a mass concentration of about 20%, and the liquid flow rate is adjusted to about 8 mL / min. Other conditions are the same as in Example 1. The reaction is completed after all the solid materials are dissolved, and the time is about 20 minutes.

[0018] The above embodiments are only used to illustrate the technical solutions of the present invention. Any modification to the technical solutions recorded in the embodiments, or any equivalent replacement, modification, change and improvement of some of the technical features therein within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A solid-liquid reaction device, characterized in that The device is composed of a balloon 1, a connecting air pipe 2, a liquid material container 3, a connecting liquid pipe 4, a liquid flow regulator 5, a solid-liquid reactor 6, a gas release valve 7, a gas conduit 8, a filter layer 9 and an inner container 10, wherein the balloon 1 is connected to the upper gas space of the liquid material container 3 through the connecting air pipe 2, the middle and lower parts of the liquid material container 3 are loaded with liquid materials 13 required for the reaction, the lower bottom of the liquid material container 3 is connected to the solid-liquid reactor 6 by a connecting liquid pipe 4, the solid-liquid reactor 6 is provided with an inner container 10, the inner container is loaded with solid material 11, and a through hole 12 is provided on the outer wall of the inner container, the upper space of the solid-liquid reactor is connected to the gas conduit 8, the connecting liquid pipe 4 is provided with a liquid material flow regulator 5, and the gas conduit 8 is provided with a gas release valve 7.

2. The solid-liquid reaction device according to claim 1, characterized in that The liquid outlet of the connecting liquid pipe is at the bottom of the solid-liquid reactor 6 .

3. The solid-liquid reaction device according to claim 1, characterized in that A certain number of through holes are arranged on the inner container cylinder.

4. The solid-liquid reaction device according to claim 1, characterized in that The solid-liquid reaction device is applied to the solid-liquid reaction process.

5. The solid-liquid reaction device according to claim 1 or 4, characterized in that The solid-liquid reaction includes gas generation, solid dissolution and chemical synthesis.

6. The solid-liquid reaction device according to claim 1, characterized in that The method of using the solid-liquid reaction device is to first open the liquid flow regulator 5 and the gas release valve 7, and then blow air into the liquid material container 3 through the blowing ball 1. Under the action of air pressure, the liquid material is injected into the bottom of the annular space between the inner wall of the solid-liquid reactor and the outer wall of the inner container through the connecting liquid pipe 4. The liquid material contacts the solid medicine through the through holes on the wall of the inner container to produce a chemical reaction. The gas generated during the reaction is demisted by the filter layer and then discharged from the gas conduit on the upper part of the solid-liquid reactor. The solid-liquid contact surface gradually moves from bottom to top until the reaction is completed.

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