Continuous membrane reaction production device for acetaldehyde oxime

Abstract

The utility model discloses an acetaldehyde oxime continuous membrane reaction production device, which comprises a sealing cover, a tank body arranged at the lower end of the sealing cover and a catalytic component arranged in the tank body, a flange pipe is arranged on the sealing cover, a feed port is arranged at the top end of the catalytic component, the feed port comprises a feed flange and a feed valve, and the feed flange is connected with the feed valve. The middle section of the catalysis assembly is a catalysis pipe, catalyst film material bins are evenly arranged on the catalysis pipe, a discharging port is formed in the bottom end of the catalysis assembly, a discharging valve is arranged at the bottom end of the discharging port, a clamping piece is arranged at the top end of the discharging port, the top end of the catalysis pipe is clamped in the flange pipe, and the bottom end of the catalysis pipe is clamped in the clamping piece. According to the acetaldehyde oxime continuous membrane reaction production device disclosed by the utility model, catalysts are filled in the catalyst membrane material bins in the plurality of groups of catalytic tubes which are connected in parallel, and the plurality of groups of catalyst membrane material bins which are connected in series increase the contact area between the catalysts and reactants, so that the utilization efficiency of the catalysts is increased.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, specifically to a continuous membrane reaction production device for acetaldehyde oxime. Background Technology

[0002] Acetaldehyde oxime is an important organic synthesis intermediate used in the synthesis of pesticides, such as insecticides and fungicides. It can also serve as a raw material or intermediate for the synthesis of drug molecules, enabling the construction of more complex drug structures through a series of chemical reactions. Existing technology (CN202010972843.3) discloses a method for the continuous production of acetaldehyde oxime using a fixed bed, comprising the following steps: S1, loading activated carbon auxiliaries after activation treatment into a fixed bed and dissolving the catalyst in butanone oxime; S2, simultaneously adding the butanone oxime containing the dissolved catalyst and acetaldehyde into the fixed bed in step S1 for reaction, thus achieving continuous production of acetaldehyde oxime. However, existing catalysts are generally directly loaded inside the reactor, which does not disperse the catalyst and increase its utilization efficiency.

[0003] The above problems urgently need to be solved, so it is necessary to provide a continuous membrane reaction production apparatus for acetaldehyde oxime to solve these problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a continuous membrane reaction production device for acetaldehyde oxime, which can disperse the catalyst, increase the utilization efficiency of the catalyst, and is easy to use with simple catalysts.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A continuous membrane reaction production device for acetaldehyde oxime is provided. The production device includes a sealing cover, a tank body disposed at the lower end of the sealing cover, and a catalyst assembly disposed inside the tank body. The sealing cover is provided with a flange tube. The top of the catalyst assembly is provided with a feed inlet, which includes a feed flange and a feed valve. The middle section of the catalyst assembly is a catalyst tube, and catalyst membrane silos are uniformly disposed on the catalyst tube. The bottom end of the catalyst assembly is provided with a discharge port, and the bottom end of the discharge port is provided with a discharge valve. The top end of the discharge port is provided with a locking component, and the top end of the catalyst tube is locked in the flange tube, and the bottom end of the catalyst tube is locked in the locking component.

[0006] Preferably, the sealing cover is provided with a flange, the flange includes a flange plate and a flange tube, the flange plate is provided with a sealing ring, and the flange tube extends through the sealing cover from top to bottom.

[0007] Preferably, the flange and the feed flange are fixed together by bolts, and the sealing ring is provided between the flange and the feed flange.

[0008] Preferably, the tank body includes a tank compartment and an outer insulation layer disposed on the tank compartment. A methyl ethyl ketone (MEK) oxime inlet pipe is provided on the left side of the top of the tank compartment, an acetaldehyde inlet pipe is provided on the right side of the top of the tank compartment, and an acetaldehyde oxime outlet is provided at the center of the bottom of the tank compartment.

[0009] Preferably, the insulation layer is provided with an insulation water inlet and an insulation water outlet. The insulation water inlet is located at the lower rear end of the insulation layer, and the insulation water outlet is located at the upper front end of the insulation layer. The insulation layer is provided with four fixed handles, and two fixed handles are symmetrically arranged on each side of the insulation layer.

[0010] Preferably, the catalytic tube is a porous ceramic membrane, and the inside of the catalytic tube is filled with a catalyst.

[0011] Preferably, the production device is fixed on the support frame, and the support frame is provided with a fixing protrusion, which engages with the fixing handle.

[0012] Preferably, methyl ethyl ketone oxime enters the production unit through the methyl ethyl ketone oxime feed pipe, and acetaldehyde enters the production unit through the acetaldehyde feed pipe. After being catalyzed by the catalyst in the catalyst membrane silo, acetaldehyde oxime is generated and discharged from the production unit through the acetaldehyde oxime outlet.

[0013] The beneficial effects of this utility model are as follows: The acetaldehyde oxime continuous membrane reaction production device of this utility model has multiple sets of catalyst tubes connected in parallel in the production device. The catalyst tubes are equipped with catalyst mold chambers, and the catalyst is filled in the catalyst mold chambers. The reactants can pass through the catalyst mold chambers and react with the catalyst. The multiple sets of catalyst mold chambers connected in series increase the contact area between the catalyst and the reactants, thereby increasing the utilization efficiency of the catalyst. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] In the picture: Figure 1 This is a schematic diagram of a continuous membrane reactor for the production of acetaldehyde oxime.

[0016] Figure 2 for Figure 1 A partial three-dimensional cross-sectional schematic diagram of the continuous membrane reactor production unit for acetaldehyde oxime;

[0017] Figure 3 for Figure 2 Another perspective view of a partial three-dimensional cross-sectional schematic diagram of the continuous membrane reactor for the production of acetaldehyde oxime;

[0018] Figure 4 for Figure 1 Cross-sectional view of a continuous membrane reactor for the production of acetaldehyde oxime.

[0019] 1. Production equipment; 11. Sealing cover; 111. Flange; 1111. Flange plate; 1112. Flange pipe; 1113. Sealing ring; 12. Tank body; 121. Tank silo; 1211. Butanone oxime feed pipe; 1212. Acetaldehyde feed pipe; 1213. Acetaldehyde oxime outlet; 122. Insulation layer; 1221. Insulation water inlet; 1222. Insulation water outlet; 1223. Fixed handle; 13. Catalytic assembly; 131. Feed port; 1311. Feed flange; 1312. Feed valve; 132. Catalytic tube; 1321. Catalyst membrane silo; 133. Outlet; 1331. Outlet valve; 1332. Clamping component; 2. Support frame; 21. Fixed protrusion; 22. Diagonal brace; 23. Fixing component. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.

[0021] like Figure 1-4 As shown, this utility model provides a continuous membrane reaction production device 1 for acetaldehyde oxime, including a sealing cover 11, a tank 12 disposed at the lower end of the sealing cover 11, and a catalyst assembly 13 disposed inside the tank 12.

[0022] The sealing cover 11 has a disc-shaped structure and a flange 111 is provided on the sealing cover 11. The flange 111 and the sealing cover 11 are an integral part.

[0023] Flange 111 includes flange 1111 and flange pipe 1112. Flange pipe 1112 is provided with sealing cover 11 through it from the top and bottom. Flange 1111 is provided with sealing ring 1113 inside.

[0024] The tank body 12 is a hollow double-walled open tank, which includes a tank compartment 121 and an outer insulation layer 122 disposed on the tank compartment 121.

[0025] A butanone oxime feed pipe 1211 is provided on the left side of the top of tank 121, an acetaldehyde feed pipe 1212 is provided on the right side of the top of tank 121, and an acetaldehyde oxime outlet 1213 is provided at the center of the bottom of tank 121.

[0026] The insulation layer 122 is provided with an insulation inlet 1221 and an insulation outlet 1222. The insulation inlet 1221 is located at the lower rear end of the insulation layer 122, and the insulation outlet 1222 is located at the upper front end of the insulation layer 122. The insulation layer 122 is provided with four fixed handles 1223, with two fixed handles 1223 symmetrically arranged on each side of the insulation layer 122.

[0027] The catalyst assembly 13 is a hollow cylindrical structure. The top of the catalyst assembly 13 is provided with a feed port 131. The feed port 131 includes a feed flange 1311 and a feed valve 1312. The flange 1111 is fixed to the feed flange 1311 by bolts.

[0028] The middle section of the catalytic component 13 is a catalytic tube 132. Catalyst membrane hoppers 1321 are uniformly arranged on the catalytic tube 132. The catalytic tube 132 is a porous ceramic membrane. The inside of the catalytic tube 132 is filled with catalyst. The catalytic tube 132 has uniform pores for water inlet.

[0029] The catalyst assembly 13 has a discharge port 133 at the bottom, a discharge valve 1331 at the bottom of the discharge port 133, and a locking component 1332 at the top of the discharge port 133.

[0030] The top end of the catalytic tube 132 is engaged in the flange tube 1112, and the bottom end of the catalytic tube 132 is engaged in the engaging part 1332.

[0031] The production device 1 is fixed on the support frame 2. The support frame 2 is an "L" shaped frame structure. The support frame 2 is provided with a fixing protrusion 21, and the bottom of the support frame 2 is provided with a diagonal brace 22. The middle part and the top of the support frame 2 are provided with a fixing member 23. The fixing protrusion 21 protrudes upward at the end of the fixing member 23 and is engaged in the fixing handle 1223.

[0032] The working process of an acetaldehyde oxime continuous membrane reaction production device 1 according to this utility model is described below with reference to the accompanying drawings:

[0033] Butanone oxime enters the production unit 1 through the butanone oxime feed pipe 1211, and acetaldehyde enters the production unit 1 through the acetaldehyde feed pipe 1212. After being catalyzed by the catalyst in the catalyst membrane silo 1321, acetaldehyde oxime is generated and discharged from the production unit 1 through the acetaldehyde oxime outlet 1213.

[0034] When replacing the catalytic converter tube 132, open the sealing cap 11 and remove the catalytic converter tube 132 directly.

[0035] When replacing the catalyst, open the discharge valve 1331 to discharge the catalyst, then close the discharge valve 1331, open the feed valve 1312, add the activated catalyst, and then close the feed valve 1312.

[0036] Therefore, the acetaldehyde oxime continuous membrane reaction production apparatus 1 of this utility model has at least the following beneficial effects:

[0037] 1. The present invention provides a continuous membrane reaction production device 1 for acetaldehyde oxime, wherein the catalyst is packed in a catalyst tube 132 to disperse the catalyst and increase the utilization efficiency of the catalyst.

[0038] 2. The top end of the catalytic tube 132 is engaged in the flange tube 1112, and the bottom end of the catalytic tube 132 is engaged in the engaging part 1332, so that the catalytic tube 132 can be directly removed and replaced.

[0039] 3. The inlet 131 and outlet 133 can be opened to directly replace the catalyst, making catalyst replacement convenient.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. It should be understood that the terms "length," "width," "upper," "lower," "front and back," "left and right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, not to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Based on the preferred embodiments of this utility model, and through the above description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A continuous membrane reaction production apparatus for acetaldoxy, characterized by: The production device (1) comprises a sealing cover (11), a tank body (12) arranged at the lower end of the sealing cover (11), and a catalytic assembly (13) arranged in the tank body (12), the sealing cover (11) is provided with a flange pipe (1112), the top end of the catalytic assembly (13) is provided with a feeding port (131), the feeding port (131) comprises a feeding flange (1311) and a feeding valve (1312), the middle section of the catalytic assembly (13) is a catalytic pipe (132), the catalytic pipe (132) is uniformly provided with a catalyst film warehouse (1321), the bottom end of the catalytic assembly (13) is provided with a discharging port (133), the bottom end of the discharging port (133) is provided with a discharging valve (1331), the top end of the discharging port (133) is provided with a clamping part (1332), the top end of the catalytic pipe (132) is clamped in the flange pipe (1112), and the bottom end of the catalytic pipe (132) is clamped in the clamping part (1332).

2. The acetaldoxime continuous membrane reaction production apparatus according to claim 1, characterized by: The sealing cover (11) is provided with a flange (111), the flange (111) comprises a flange plate (1111) and a flange pipe (1112), the flange plate (1111) is internally provided with a sealing ring (1113), and the flange pipe (1112) is arranged through the sealing cover (11) in the up-down direction.

3. The acetaldoxime continuous membrane reaction production apparatus according to claim 2, characterized by: The flange plate (1111) and the feeding flange (1311) are fixed by bolts, and the sealing ring (1113) is arranged between the flange plate (1111) and the feeding flange (1311).

4. The acetaldoxime continuous membrane reaction production apparatus according to claim 1, characterized by: The tank body (12) comprises a tank warehouse (121) and a heat preservation layer (122) arranged on the outer layer of the tank warehouse (121), a butanone oxime feeding pipe (1211) is arranged at the top left side of the tank warehouse (121), an acetaldehyde feeding pipe (1212) is arranged at the top right side of the tank warehouse (121), and an acetaldehyde oxime discharging port (1213) is arranged at the bottom center of the tank warehouse (121), and the production device (1) is fixed on a support frame (2).

5. The acetaldoxime continuous membrane reaction production apparatus according to claim 4, characterized by: The heat preservation layer (122) is provided with a heat preservation water inlet (1221) and a heat preservation water outlet (1222), the heat preservation water inlet (1221) is arranged at the lower end of the rear side of the heat preservation layer (122), the heat preservation water outlet (1222) is arranged at the upper end of the front side of the heat preservation layer (122), and four fixed handles (1223) are arranged on the heat preservation layer (122), and two fixed handles (1223) are arranged on the left and right sides of the heat preservation layer (122) in a symmetrical manner.

6. The acetaldoxime continuous membrane reaction production apparatus according to claim 5, characterized by: The support frame (2) is provided with a fixed protrusion (21), and the fixed protrusion (21) is clamped in the fixed handle (1223).

7. The acetaldoxime continuous film reaction production apparatus according to claim 1, characterized by: The catalytic pipe (132) is a porous ceramic membrane, and the catalytic pipe (132) is filled with a catalyst.

8. The acetaldoxime continuous membrane reaction production apparatus according to claim 4, characterized by: Butanone oxime enters the production device (1) from the butanone oxime feeding pipe (1211), acetaldehyde enters the production device (1) from the acetaldehyde feeding pipe (1212), and acetaldehyde oxime is generated after catalytic treatment of the catalyst in the catalyst membrane bin (1321), and the acetaldehyde oxime is discharged from the acetaldehyde oxime discharge port (1213) of the production device (1).

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