Reaction filtering device for preparing high-purity p-fluorobenzoyl chloride

Abstract

The utility model relates to the technical field of preparation of p-fluorobenzoyl chloride, and discloses a reaction filtering device for preparation of high-purity p-fluorobenzoyl chloride, which comprises a filtering box and a reaction cylinder, support legs are fixedly mounted at the bottom of the filtering box, a discharge funnel is communicated with the bottom of the filtering box, and the reaction cylinder is arranged in the filtering box. The reaction cylinder is fixedly arranged at the top of the filter box in a sleeving manner, the outer wall of the filter box is fixedly sleeved with a heat preservation outer cylinder, a thermometer is arranged at the top of the cylinder cover, and a reaction assembly is arranged in the reaction cylinder. The stirring shaft drives the connecting sleeve and the fixed sleeve to rotate at the same time, the connecting sleeve drives the first connecting rods on the two sides to rotate, the first connecting rods drive the first scraper to rotate through the first scraper connecting rod, the fixed sleeve drives the second connecting rods on the two sides to rotate, and the second connecting rods drive the scraper to rotate through the second scraper connecting rod. The effects that the device can clean the inner wall of the reaction cylinder, and subsequent p-fluorobenzoyl chloride reaction is facilitated are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of p-fluorobenzoyl chloride preparation, in particular to a reaction filtering device for preparing high-purity p-fluorobenzoyl chloride. Background Art

[0002] p-Fluorobenzoyl chloride is a chemical substance. It is a colorless or pale yellow liquid that is volatile at room temperature and soluble in a variety of organic solvents. p-Fluorobenzoyl chloride is an acyl halide compound that reacts with nucleophiles such as amines and alcohols to form corresponding amino compounds or esters. It can also undergo base-catalyzed addition reactions to produce products such as p-fluorobenzoic acid.

[0003] At present, the reaction device does not fully react with the reactant, resulting in the precipitation of the incompletely reacted p-fluorobenzoyl chloride. In addition, the efficiency of simple filtration is not very good. After the reaction of p-fluorobenzoyl chloride is completed, there will be residues in the reaction cylinder, which will affect the subsequent reaction of p-fluorobenzoyl chloride. Utility Model Content

[0004] The purpose of the utility model is to provide a reaction filtering device for preparing high-purity p-fluorobenzoyl chloride, so that the device can fully react p-fluorobenzoyl chloride, and at the same time, the interior of the reaction cylinder can be cleaned after the reaction of p-fluorobenzoyl chloride is completed, and the inflow and outflow of p-fluorobenzoyl chloride can be filtered by vibration.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a reaction filtration device for preparing high-purity p-fluorobenzoyl chloride, comprising a filter box and a reaction cylinder, wherein a support leg is fixedly installed at the bottom of the filter box, a discharge funnel is connected to the bottom of the filter box, the reaction cylinder is fixedly sleeved on the top of the filter box, an insulation outer cylinder is fixedly sleeved on the outer wall of the filter box, a heating device is provided between the reaction cylinder and the insulation outer cylinder, an electric valve is provided at the bottom of the reaction cylinder, a cylinder cover is provided at the top of the reaction cylinder, a feed pipe is connected to the top of the cylinder cover, a thermometer is provided on the top of the cylinder cover, a reaction component is provided inside the reaction cylinder, and a filtration component is provided inside the filter box.

[0006] Preferably, the reaction assembly includes: a stirring component, which is arranged inside the reaction cylinder; and a cleaning component, which is arranged outside the stirring component.

[0007] Preferably, the stirring component includes: a motor fixing frame fixedly mounted on the top of the drum cover; and a motor 1 fixedly mounted on the bottom of the motor fixing frame.

[0008] Preferably, a reducer is provided at the output end of the motor 1, and a stirring shaft is provided at the output end of the reducer. The other end of the stirring shaft passes through the top of the barrel cover and extends to the interior of the reaction barrel. Stirring rods are equidistantly installed on the outer wall circumference of the stirring shaft.

[0009] Preferably, the cleaning component includes: a connecting sleeve fixedly sleeved on the outer wall of the stirring shaft; and a fixing sleeve fixedly sleeved on the bottom end of the stirring shaft.

[0010] Preferably, connecting rod 1 is fixedly installed on both sides of the connecting sleeve, scraper connecting rod 1 is fixedly installed on the other end of the connecting rod 1, and scraper 1 is fixedly connected to the outer side of the scraper connecting rod 1. Connecting rod 2 is fixedly installed on both sides of the fixed sleeve, scraper connecting rod 2 is fixedly installed on the bottom of the connecting rod 2, and the bottom of the scraper connecting rod 2 is fixedly connected to the scraper.

[0011] Preferably, the filter assembly includes: an L-shaped connecting plate, which is slidably mounted on the top of the filter box; fixed plates, which are symmetrically mounted on both sides of the filter box; and a second motor, which is fixedly mounted on the outside of one of the fixed plates.

[0012] Preferably, there are two L-shaped connecting plates, which are respectively arranged on both sides of the reaction cylinder. A filter basket is fixedly installed on the top of the L-shaped connecting plate. There are four fixed plates, and each two form a group, and there are two groups. A connecting shaft is provided between the fixed plates, one end of the connecting shaft passes through the inner side of the fixed plate and extends to the outer side of the fixed plate, and the fixed sleeve is provided with a pulley. The pulleys are movably connected by a belt, and the other end of the connecting shaft is rotatably connected to the inside of the other fixed plate through a bearing. The output end of the second motor is fixedly connected to one end of one of the connecting shafts, and the outer wall fixed sleeve of the connecting shaft is provided with a protrusion.

[0013] The utility model provides a reaction filtration device for preparing high-purity p-fluorobenzoyl chloride. It has the following beneficial effects:

[0014] (1) The utility model turns on the heating device, which heats the high-purity p-fluorobenzoyl chloride. The thermometer can detect the internal temperature of the filter box, and at the same time starts the motor 1 and the reducer. The motor 1 drives the stirring shaft to rotate through the reducer, and the stirring shaft drives the stirring rod to rotate, and at the same time drives the cleaning component to rotate, so that the device can fully react with the reactant.

[0015] (2) The utility model drives the connecting sleeve and the fixed sleeve to rotate at the same time through the stirring shaft. The connecting sleeve drives the connecting rods 1 on both sides to rotate. The connecting rods 1 drive the scraper 1 to rotate through the scraper connecting rods 1. The fixed sleeve drives the connecting rods 2 on both sides to rotate. The connecting rods 2 drive the scraper to rotate through the scraper connecting rods 2, so that the device can clean the inner wall of the reaction cylinder, which is convenient for the subsequent reaction of fluorobenzoyl chloride. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the reaction component structure of the utility model;

[0019] Figure 4 This is a structural view of the filter component of the utility model.

[0020] In the figure: 1 filter box, 2 support legs, 3 discharge funnel, 4 reaction cylinder, 5 insulation outer cylinder, 6 cylinder cover, 7 reaction component, 8 filter component, 9 feed pipe, 10 thermometer, 11 heating device, 12 electric valve;

[0021] 71 stirring component, 711 motor fixing frame, 712 motor 1, 713 speed reducer, 714 stirring shaft, 715 stirring rod;

[0022] 72 cleaning component, 721 connecting sleeve, 722 connecting rod 1, 723 scraper connecting rod 1, 724 scraper 1, 725 fixed sleeve, 726 connecting rod 2, 727 scraper connecting rod 2, 728 scraper;

[0023] 811 L-type connecting plate, 812 filter basket, 813 fixing plate, 814 second motor, 815 connecting shaft, 816 bump, 817 pulley, 818 belt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] Example 1

[0027] The preferred embodiment of the reaction filtration device for preparing high-purity p-fluorobenzoyl chloride provided by the present invention is as follows: Figure 1-4 As shown: A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride, comprising a filter box 1, a reaction cylinder 4, a support leg 2 fixedly mounted on the bottom of the filter box 1, a discharge funnel 3 connected to the bottom of the filter box 1, a fixed sleeve of the reaction cylinder 4 on the top of the filter box 1, a heat-insulating outer cylinder 5 fixedly sleeved on the outer wall of the filter box 1, a heating device 11 provided between the reaction cylinder 4 and the heat-insulating outer cylinder 5, an electric valve 12 provided at the bottom of the reaction cylinder 4, a cylinder cover 6 provided on the top of the reaction cylinder 4, a feed pipe 9 connected to the top of the cylinder cover 6, a thermometer 10 provided on the top of the cylinder cover 6, a reaction assembly 7 provided inside the reaction cylinder 4, A filter assembly 8 is provided inside the filter box 1, and the reaction assembly 7 includes: a stirring component 71, which is provided inside the reaction tube 4; a cleaning component 72, which is provided outside the stirring component 71; the stirring component 71 includes: a motor fixing bracket 711, which is fixedly installed on the top of the tube cover 6; a motor 712, which is fixedly installed on the bottom of the motor fixing bracket 711; a reducer 713 is provided at the output end of the motor 712, and a stirring shaft 714 is provided at the output end of the reducer 713, the other end of the stirring shaft 714 passes through the top of the tube cover 6 and extends to the interior of the reaction tube 4, and stirring rods 715 are equidistantly installed on the circumference of the outer wall of the stirring shaft 714.

[0028] Furthermore, in the embodiment, high-purity p-fluorobenzoyl chloride and the reactant are poured into the reaction tube 4 through the thermometer 10, the heating device 11 is turned on, and the heating device 11 heats the high-purity p-fluorobenzoyl chloride. The thermometer 10 can detect the internal temperature of the filter box 1, pay attention to the thermometer 10, and when the temperature is too high, turn off the heating device 11. When the temperature is not enough, start the heating device 11, and start the motor 1 712 and the reducer 713 at the same time. The motor 1 712 drives the stirring shaft 714 to rotate through the reducer 713, and the stirring shaft 714 drives the stirring rod 715 to rotate, and at the same time drives the cleaning component 72 to rotate, and the stirring rod 715 stirs the p-fluorobenzoyl chloride for reaction.

[0029] Example 2

[0030] On the basis of Example 1, a preferred embodiment of a reaction filtration device for preparing high-purity p-fluorobenzoyl chloride provided by the present invention is as follows: Figure 1-4As shown: the cleaning component 72 includes: a connecting sleeve 721, which is fixedly mounted on the outer wall of the stirring shaft 714; a fixed sleeve 725, which is fixedly mounted on the bottom end of the stirring shaft 714; connecting rod 1 722 is fixedly installed on both sides of the connecting sleeve 721, and a scraper connecting rod 1 723 is fixedly installed on the other end of the connecting rod 1 722, and a scraper 1 724 is fixedly connected to the outer side of the scraper connecting rod 1 723, and connecting rod 2 726 is fixedly installed on both sides of the fixed sleeve 725, and a scraper connecting rod 2 727 is fixedly mounted on the bottom of the connecting rod 2 726, and a scraper 728 is fixedly connected to the bottom of the scraper connecting rod 2 727.

[0031] Furthermore, in the embodiment, the stirring shaft 714 drives the connecting sleeve 721 and the fixed sleeve 725 to rotate at the same time, the connecting sleeve 721 drives the connecting rod 1 722 on both sides to rotate, the connecting rod 1 722 drives the scraper 1 724 to rotate through the scraper connecting rod 1 723, the fixed sleeve 725 drives the connecting rod 2 726 on both sides to rotate, and the connecting rod 2 726 drives the scraper 728 to rotate through the scraper connecting rod 2 727.

[0032] Example 3

[0033] On the basis of Examples 1 and 2, a preferred embodiment of a reaction filtration device for preparing high-purity p-fluorobenzoyl chloride provided by the present invention is as follows: Figure 1-4 As shown: the filter assembly 8 includes: an L-shaped connecting plate 811, which is slidably mounted on the top of the filter box 1; a fixed plate 813, which is symmetrically mounted on both sides of the filter box 1; a second motor 814, which is fixedly mounted on the outside of one of the fixed plates 813; there are two L-shaped connecting plates 811, which are respectively arranged on both sides of the reaction cylinder 4, and a filter basket 812 is fixedly mounted on the top of the L-shaped connecting plate 811, and there are four fixed plates 813, and each two form a group, and there are two groups. A connecting shaft 815 is provided between the fixed plates 813, one end of the connecting shaft 815 passes through the inner side of the fixed plate 813 and extends to the outer side of the fixed plate 813, and the fixed sleeve is provided with a pulley 817, and the pulleys 817 are movably connected by a belt 818, and the other end of the connecting shaft 815 is rotatably connected to the inside of the other fixed plate 813 through a bearing, and the output end of the second motor 814 is fixedly connected to one end of one of the connecting shafts 815, and the outer wall fixed sleeve of the connecting shaft 815 is provided with a protrusion 816.

[0034] Furthermore, in the embodiment, by starting motor 2 814, motor 2 814 drives connecting shaft 815 to rotate, connecting shaft 815 drives pulley 817 to rotate, pulley 817 drives another pulley 817 to rotate through belt 818, and another pulley 817 drives another connecting shaft 815 to rotate. When the two connecting shafts 815 rotate, they drive two protrusions 816 to rotate. When the top of the protrusion 816 contacts the L-shaped connecting plate 811, the filter basket 812 is lifted up by the L-shaped connecting plate 811. When the top of the protrusion 816 is separated from the L-shaped connecting plate 811, due to gravity, the filter basket 812 drives the L-shaped connecting plate 811 to move downward.

[0035] When in use, first pour high-purity p-fluorobenzoyl chloride and reactants into the reaction tube 4 through the thermometer 10, turn on the heating device 11, the heating device 11 heats the high-purity p-fluorobenzoyl chloride, the thermometer 10 can detect the internal temperature of the filter box 1, pay attention to the thermometer 10, when the temperature is too high, turn off the heating device 11, when the temperature is not enough, start the heating device 11, and start the motor 1 712 and the reducer 713 at the same time, the motor 1 712 drives the stirring shaft 714 to rotate through the reducer 713, and the stirring shaft 7 14 drives the stirring rod 715 to rotate, and at the same time drives the cleaning component 72 to rotate, the stirring rod 715 stirs the p-fluorobenzoyl chloride to make the p-fluorobenzoyl chloride and the reactant fully react. When the reaction is completed, the electric valve 12 is started, the p-fluorobenzoyl chloride enters the filter box 1, the motor 2 814 is started, the motor 2 814 rotates with the connecting shaft 815, the connecting shaft 815 drives the pulley 817 to rotate, the pulley 817 drives another pulley 817 to rotate through the belt 818, and the other pulley 817 drives another The two connecting shafts 815 rotate, and the two connecting shafts 815 drive the two protrusions 816 to rotate. When the top of the protrusion 816 contacts the L-shaped connecting plate 811, the filter basket 812 is lifted up by the L-shaped connecting plate 811. When the top of the protrusion 816 is separated from the L-shaped connecting plate 811, the filter basket 812 drives the L-shaped connecting plate 811 to move downward due to gravity. The operation is repeated to form vibration, and the fluorobenzoyl chloride is filtered. The filtered fluorobenzoyl chloride is discharged through the discharge funnel 3. When the fluorobenzoyl chloride is After complete discharge, the stirring shaft 714 simultaneously drives the connecting sleeve 721 and the fixed sleeve 725 to rotate, the connecting sleeve 721 drives the connecting rod 1 722 on both sides to rotate, the connecting rod 1 722 drives the scraper 1 724 to rotate through the scraper connecting rod 1 723, the fixed sleeve 725 drives the connecting rod 2 726 on both sides to rotate, the connecting rod 2 726 drives the scraper 728 to rotate through the scraper connecting rod 2 727, and the scraper 1 724 and the scraper 728 scrape and clean the inner wall of the reaction tube 4 to facilitate the subsequent reaction of 4-fluorobenzoyl chloride.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride, comprising a filter box (1) and a reaction cylinder (4), characterized in that: The bottom of the filter box (1) is fixedly provided with a support leg (2); the bottom of the filter box (1) is connected to a discharge funnel (3); the reaction cylinder (4) is fixedly sleeved on the top of the filter box (1); the outer wall of the filter box (1) is fixedly sleeved with a heat-insulating outer cylinder (5); a heating device (11) is provided between the reaction cylinder (4) and the heat-insulating outer cylinder (5); an electric valve (12) is provided at the bottom of the reaction cylinder (4); a cylinder cover (6) is provided at the top of the reaction cylinder (4); a feed pipe (9) is connected to the top of the cylinder cover (6); a thermometer (10) is provided at the top of the cylinder cover (6); a reaction component (7) is provided inside the reaction cylinder (4); and a filter component (8) is provided inside the filter box (1).

2. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride according to claim 1, characterized in that: The reaction assembly (7) comprises: A stirring component (71) is arranged inside the reaction tube (4); The cleaning component (72) is arranged outside the stirring component (71).

3. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride according to claim 2, characterized in that: The stirring component (71) comprises: a motor fixing frame (711) fixedly mounted on the top of the cylinder cover (6); and a motor 1 (712) fixedly mounted on the bottom of the motor fixing frame (711).

4. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride according to claim 3, characterized in that: A reducer (713) is provided at the output end of the motor 1 (712), and a stirring shaft (714) is provided at the output end of the reducer (713). The other end of the stirring shaft (714) passes through the top of the cylinder cover (6) and extends to the interior of the reaction cylinder (4). Stirring rods (715) are equidistantly installed on the circumference of the outer wall of the stirring shaft (714).

5. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride according to claim 2, characterized in that: The cleaning component (72) comprises: A connecting sleeve (721) is fixedly sleeved on the outer wall of the stirring shaft (714); A fixed sleeve (725) is arranged at the bottom end of the stirring shaft (714).

6. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride according to claim 5, characterized in that: Connecting rod 1 (722) is fixedly installed on both sides of the connecting sleeve (721), and a scraper connecting rod 1 (723) is fixedly installed on the other end of the connecting rod 1 (722). The outer side of the scraper connecting rod 1 (723) is fixedly connected to a scraper 1 (724). Connecting rod 2 (726) is fixedly installed on both sides of the fixed sleeve (725), and a scraper connecting rod 2 (727) is fixedly installed on the bottom of the connecting rod 2 (726), and a scraper (728) is fixedly connected to the bottom of the scraper connecting rod 2 (727).

7. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride according to claim 1, characterized in that: The filter assembly (8) comprises: An L-shaped connecting plate (811) is slidably mounted on the top of the filter box (1); The fixing plate (813) is symmetrically mounted on both sides of the filter box (1); Motor 2 (814) is fixedly mounted on the outside of one of the fixing plates (813).

8. A reaction filtration device for preparing high-purity p-fluorobenzoyl chloride according to claim 7, characterized in that: There are two L-shaped connecting plates (811), which are respectively arranged on both sides of the reaction cylinder (4). A filter basket (812) is fixedly installed on the top of the L-shaped connecting plate (811). There are four fixed plates (813), and each two form a group, so there are two groups. A connecting shaft (815) is arranged between the fixed plates (813). One end of the connecting shaft (815) passes through the inner side of the fixed plate (813) and extends to the outer side of the fixed plate (813). A fixed sleeve is provided with a pulley (817). The pulleys (817) are movably connected to each other through a belt (818). The other end of the connecting shaft (815) is rotatably connected to the inside of another fixed plate (813) through a bearing. The output end of the second motor (814) is fixedly connected to one end of one of the connecting shafts (815). The outer wall fixed sleeve of the connecting shaft (815) is provided with a protrusion (816).

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