Reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline

Abstract

The utility model discloses a reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline, which relates to the technical field of reaction kettles and comprises a reaction accommodating mechanism, an outer support mechanism is fixedly connected outside the reaction accommodating mechanism, and an injection mechanism is fixedly connected inside the reaction accommodating mechanism. The utility model provides a reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline, which is characterized in that a bottom connecting ring is fixed at the bottom of a front side arc-shaped plate and the bottom of a rear side arc-shaped plate, a middle vertical circular pipe is fixed in the middle of the bottom connecting ring, and heating rods are fixed in the middle of the middle vertical circular pipe and the middle of the front side arc-shaped plate; heating rods are fixed to the middle of the middle vertical round pipe and the middle of the rear side arc-shaped plate, chemical reaction is carried out in the middle vertical round pipe, various different temperatures are needed, the whole outer side of the middle vertical round pipe is wrapped, the temperature in the middle vertical round pipe can be balanced, and when the temperature needs to be adjusted, the change is rapid, and the temperature is uniform. And the requirements of chemical reaction in the middle vertical round pipe are met.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle used for synthesizing 2-methyl-3-trifluoromethylaniline. Background Art

[0002] Trifluoromethylaniline has three isomers, namely o-, m- and p-trifluoromethylaniline, and is an important fluorine-containing organic intermediate. The molecular formula of 2-methyl-3-trifluoromethylaniline is C8H8F3N, the molecular weight is 175.15, the melting point is between 38-42°C, and the boiling point is around 203°C. As an organic compound, it is generally recommended to be sealed and stored in a cool and dry place to maintain its stability. 2-methyl-3-trifluoromethylaniline is mainly used as a biochemical reagent for research in the field of life sciences and an organic synthesis intermediate.

[0003] There are currently a variety of process routes for producing 2-methyl-3-trifluoromethylaniline. Among them, a process method using 2-chloro-5-(trifluoromethyl)aniline as a raw material and obtaining MTA through acylation, methylation, hydrogenolysis and hydrolysis is suitable for industrial production. In the methylation step, the reaction efficiency is slow and the product is easy to remain. In the existing equipment for synthesizing 2-methyl-3-trifluoromethylaniline, since multiple steps and equipment are required to prepare 2-methyl-3-trifluoromethylaniline, the operation is complicated and multiple experimental conditions need to be controlled.

[0004] Therefore, this patent proposes a reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline to solve such problems. Utility Model Content

[0005] The utility model provides a reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline, which solves the technical problem of the reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline.

[0006] In order to solve the above technical problems, the utility model provides a reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline, comprising a reaction accommodating mechanism, the outside of the reaction accommodating mechanism is fixedly connected with an external supporting mechanism, the inside of the reaction accommodating mechanism is fixedly connected with an injection mechanism, the reaction accommodating mechanism comprises a top hemispherical cover, the bottom of the top hemispherical cover is fixedly connected with a middle vertical circular tube, the bottom of the middle vertical circular tube is fixedly connected with a bottom circular cover, the bottom of the bottom circular cover is fixedly connected with a bottom distillation cover, the outer side surface of the bottom distillation cover is fixedly connected with a bottom supporting leg, the top surface of the middle part of the top hemispherical cover is fixedly connected with a motor body, the middle part of the motor body is penetrated with a driving shaft, and the top of the top hemispherical cover is fixedly connected with a motor body. A left vertical tube penetrates through and is fixedly connected to one side, a right vertical tube penetrates through and is fixedly connected to the other side of the top of the top hemispherical cover, the top of the left vertical tube is movably connected to the left top cover, the middle part of the driving shaft is fixedly connected to a horizontal plate, both ends of the horizontal plate are fixedly connected to stirring rods, one side of the middle vertical circular tube is fixedly connected to the left rear upright plate and the left front upright plate, the other side of the middle vertical circular tube is fixedly connected to the right rear upright plate and the right front upright plate, the outside of the left rear upright plate and the right rear upright plate is fixedly connected to the rear side arc plate, the outside of the left front upright plate and the right front upright plate is fixedly connected to the front side arc plate, the bottom of the front side arc plate and the rear side arc plate is fixedly connected to a bottom connecting ring, and the middle part of the bottom connecting ring is fixedly connected to the middle vertical circular tube.

[0007] Preferably, the number of the horizontal plates is two, the two horizontal plates are perpendicular to each other, and the number of the stirring rods is four.

[0008] Preferably, the number of the bottom supporting legs is four, and the four bottom supporting legs are evenly distributed on the bottom side surface of the bottom distillation cover, the front arc plate and the middle part of the middle vertical circular tube are fixedly connected with a heating rod, and the rear arc plate and the middle part of the middle vertical circular tube are fixedly connected with a heating rod.

[0009] Preferably, one side of the middle vertical circular tube is fixedly connected to an outer vertical plate, the middle of the outer vertical plate is movably connected to a left horizontal tube, the inner side of the middle vertical circular tube is movably connected to an inner movable plate, and the end of the left horizontal tube is fixedly connected to the left horizontal tube.

[0010] Preferably, a right transverse tube is fixedly connected to the other side of the central vertical circular tube, and the right transverse tube is located in the middle of the right rear vertical plate and the right front vertical plate.

[0011] Preferably, the left transverse tube is located in the middle of the left rear vertical plate and the left front vertical plate.

[0012] Preferably, the axes of the front arc plate and the rear arc plate are the same as the axis of the middle vertical circular tube, and the top hemispherical cover, the middle vertical circular tube and the bottom circular cover are an integrated structure.

[0013] Compared with the related art, the reaction kettle for the synthesis of trifluoromethylaniline provided by the utility model has the following beneficial effects:

[0014] The utility model provides a reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline. A left rear vertical plate and a left front vertical plate are fixedly connected on one side of a central vertical circular tube, a right rear vertical plate and a right front vertical plate are fixedly connected on the other side of the central vertical circular tube, two ends of a rear curved plate are respectively connected to the outer ends of the left rear vertical plate and the right rear vertical plate, two ends of a front curved plate are respectively connected to the outer ends of the left front vertical plate and the right front vertical plate, a bottom connecting ring is fixed at the bottom of the front curved plate and the rear curved plate, a central vertical circular tube is fixed at the middle of the bottom connecting ring, a heating rod is fixed at the middle of the central vertical circular tube and the front curved plate, and a heating rod is fixed at the middle of the central vertical circular tube and the rear curved plate. Chemical reactions are carried out inside the central vertical circular tube, which requires various different temperatures. By wrapping the entire outer side of the central vertical circular tube, the temperature inside the central vertical circular tube can be balanced, and when the temperature needs to be adjusted, the temperature changes quickly, thereby meeting the needs of chemical reactions inside the central vertical circular tube.

[0015] The utility model provides a reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline. A right vertical tube and a left vertical tube are fixed on the top of a top hemispherical cover, a bottom distillation cover is fixed on the bottom of a middle vertical circular tube, an inner movable plate is arranged on the side of the middle vertical circular tube, a left horizontal tube is fixed in the middle of the inner movable plate, an outer vertical plate is sleeved on the outside of the left horizontal tube, a right horizontal tube is fixed on the other side of the middle vertical circular tube, chemical raw materials can be added into the inside of the right vertical tube, and low-temperature nitrogen can be injected to meet the requirement of low temperature inside the middle vertical circular tube. In the reaction inside the middle vertical circular tube, physical stratification occurs, and at this time, the height of the left horizontal tube can be adjusted to discharge the stratified part, and solid-liquid separation can be performed to meet various multi-step use conditions. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the middle structure of the injection mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the bottom structure of the injection mechanism of the utility model.

[0020] Numbers in the figure: 1. reaction containing mechanism; 101. top hemispherical cover; 102. middle vertical circular tube; 103. bottom supporting legs; 104. bottom distillation cover; 2. external supporting mechanism; 201. left rear vertical plate; 202. right rear vertical plate; 203. left front vertical plate; 204. right front vertical plate; 205. heating rod; 206. bottom connecting ring; 207. front arc plate; 208. rear arc plate; 3. injection mechanism; 301. right vertical tube; 302. left vertical tube; 303. motor body; 304. left top cover; 305. driving shaft; 306. horizontal plate; 307. external vertical plate; 308. left horizontal tube; 309. right horizontal tube; 310. inner movable plate; 311. stirring rod; 312. bottom circular cover. DETAILED DESCRIPTION

[0021] The technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The reactor for the synthesis of 2-methyl-3-trifluoromethylaniline involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1-4The utility model provides a reaction kettle for synthesizing 2-methyl-3-trifluoromethylaniline, comprising a reaction accommodating mechanism 1, the outside of the reaction accommodating mechanism 1 is fixedly connected with an external supporting mechanism 2, the inside of the reaction accommodating mechanism 1 is fixedly connected with an injection mechanism 3, the reaction accommodating mechanism 1 comprises a top hemispherical cover 101, the bottom of the top hemispherical cover 101 is fixedly connected with a middle vertical circular tube 102, the bottom of the middle vertical circular tube 102 is fixedly connected with a bottom circular cover 312, the bottom of the bottom circular cover 312 is fixedly connected with a bottom distillation cover 104, the outer side surface of the bottom distillation cover 104 is fixedly connected with a bottom supporting leg 103, the top surface of the middle part of the top hemispherical cover 101 is fixedly connected with a motor body 303, the middle part of the motor body 303 is penetrated with a driving shaft 305, one side of the top of the top of the top hemispherical cover 101 is penetrated and fixedly connected with a left vertical tube 302, the top hemispherical cover 101 is fixedly connected with a bottom supporting leg 103, the top surface of the middle part of the top hemispherical cover 101 is fixedly connected with a motor body 303, the middle part of the motor body 303 is penetrated with a driving shaft 305, the left vertical tube 302 is penetrated and fixedly connected with the left vertical tube 302, the top hemispherical cover 101 is fixedly connected with a bottom supporting leg 103, the bottom of the bottom hemispherical cover 312 is fixedly connected with a bottom distillation cover 104, the bottom of the bottom distillation cover 104 is fixedly connected with a bottom supporting leg 103, the top surface of the middle part of the top hemispher The other side of the top of the cover 101 penetrates and is fixedly connected with a right vertical tube 301, the top of the left vertical tube 302 is movably connected with a left top cover 304, the middle of the driving shaft 305 is fixedly connected with a horizontal plate 306, both ends of the horizontal plate 306 are fixedly connected with stirring rods 311, one side of the middle vertical circular tube 102 is fixedly connected with a left rear upright plate 201 and a left front upright plate 203, the other side of the middle vertical circular tube 102 is fixedly connected with a right rear upright plate 202 and a right front upright plate 204, the outside of the left rear upright plate 201 and the right rear upright plate 202 is fixedly connected with a rear curved plate 208, the outside of the left front upright plate 203 and the right front upright plate 204 is fixedly connected with a front curved plate 207, the bottom of the front curved plate 207 and the rear curved plate 208 is fixedly connected with a bottom connecting ring 206, and the middle part of the bottom connecting ring 206 is fixedly connected with the middle vertical circular tube 102.

[0023] Reference Figure 3 and Figure 4 There are two horizontal plates 306 , which are perpendicular to each other, and there are four stirring rods 311 ; specifically, the four stirring rods 311 are evenly distributed inside the middle vertical circular tube 102 .

[0024] Reference Figure 2 There are four bottom supporting legs 103, which are evenly distributed on the bottom side of the bottom distillation cover 104. The front arc plate 207 and the middle of the middle vertical circular tube 102 are fixedly connected with a heating rod 205, and the rear arc plate 208 and the middle of the middle vertical circular tube 102 are fixedly connected with a heating rod 205. Specifically, the outside of the middle vertical circular tube 102 is fixed with a front arc plate 207 and a rear arc plate 208, which can evenly insulate the middle vertical circular tube 102.

[0025] Reference Figure 3 and Figure 4One side of the middle vertical circular tube 102 is fixedly connected with an outer vertical plate 307, the middle part of the outer vertical plate 307 is movably connected with a left horizontal tube 308, the inner side of the middle vertical circular tube 102 is movably connected with an inner movable plate 310, and the end of the left horizontal tube 308 is fixedly connected with the left horizontal tube 308; specifically, the inner movable plate 310 can be adjusted up and down, so that the left horizontal tube 308 is adjusted with the movement of the inner movable plate 310.

[0026] Reference Figure 2 and Figure 3 The other side of the middle vertical circular tube 102 is fixedly connected with a right horizontal tube 309 , and the right horizontal tube 309 is located in the middle of the right rear vertical plate 202 and the right front vertical plate 204 ; specifically, the solution inside the middle vertical circular tube 102 can be poured out through the right horizontal tube 309 .

[0027] Reference Figure 2 and Figure 3 The left transverse pipe 308 is located in the middle of the left rear vertical plate 201 and the left front vertical plate 203 ; specifically, the left transverse pipe 308 is used to discharge the stratified liquid inside the middle vertical circular tube 102 .

[0028] Reference Figure 3 and Figure 4 The axis of the front arc plate 207 and the rear arc plate 208 is the same as the axis of the middle vertical circular tube 102, and the top hemispherical cover 101, the middle vertical circular tube 102 and the bottom circular cover 312 are an integrated structure; specifically, multiple chemical reactions are carried out inside the middle vertical circular tube 102.

[0029] The working principle of the utility model is as follows: a left rear upright plate 201 and a left front upright plate 203 are fixedly connected to one side of the middle vertical circular tube 102, a right rear upright plate 202 and a right front upright plate 204 are fixedly connected to the other side of the middle vertical circular tube 102, two ends of the rear curved plate 208 are respectively connected to the outer ends of the left rear upright plate 201 and the right rear upright plate 202, two ends of the front curved plate 207 are respectively connected to the outer ends of the left front upright plate 203 and the right front upright plate 204, a bottom connecting ring 206 is fixed to the bottom of the front curved plate 207 and the rear curved plate 208, the middle vertical circular tube 102 is fixed to the middle of the bottom connecting ring 206, a heating rod 205 is fixed to the middle of the middle vertical circular tube 102 and the front curved plate 207, a heating rod 205 is fixed to the middle of the middle vertical circular tube 102 and the rear curved plate 208, and a chemical reaction is carried out inside the middle vertical circular tube 102 , various different temperatures are required, and the outer side of the middle vertical circular tube 102 is completely wrapped to balance the temperature inside the middle vertical circular tube 102. A right vertical tube 301 and a left vertical tube 302 are fixed on the top of the top hemispherical cover 101, and a bottom distillation cover 104 is fixed on the bottom of the middle vertical circular tube 102. An inner movable plate 310 is arranged on the side of the middle vertical circular tube 102, and a left horizontal tube 308 is fixed in the middle of the inner movable plate 310. An outer vertical plate 307 is sleeved on the outside of the left horizontal tube 308, and a right horizontal tube 309 is fixed on the other side of the middle vertical circular tube 102. Not only chemical raw materials can be added to the inside of the right vertical tube 301, but also low-temperature nitrogen can be injected to meet the low temperature requirement inside the middle vertical circular tube 102. In the reaction inside the middle vertical circular tube 102, there will be physical stratification, and the height of the left horizontal tube 308 can be adjusted at this time.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline, comprising a reaction containing mechanism (1), characterized in that: The outside of the reaction accommodating mechanism (1) is fixedly connected to an external supporting mechanism (2), the inside of the reaction accommodating mechanism (1) is fixedly connected to an injection mechanism (3), the reaction accommodating mechanism (1) comprises a top hemispherical cover (101), the bottom of the top hemispherical cover (101) is fixedly connected to a middle vertical circular tube (102), the bottom of the middle vertical circular tube (102) is fixedly connected to a bottom circular cover (312), the bottom of the bottom circular cover (312) is fixedly connected to a bottom distillation cover (104), the outer side surface of the bottom distillation cover (104) is fixedly connected to a bottom supporting leg (103), the top surface of the middle part of the top hemispherical cover (101) is fixedly connected to a motor body (303), the middle part of the motor body (303) is penetrated and connected to a driving shaft (305), one side of the top of the top hemispherical cover (101) is penetrated and fixedly connected to a left vertical tube (302), and the other side of the top of the top hemispherical cover (101) is penetrated and fixedly connected to a right vertical tube ( The top of the left vertical tube (302) is movably connected to a left top cover (304), the middle of the driving shaft (305) is fixedly connected to a horizontal plate (306), both ends of the horizontal plate (306) are fixedly connected to stirring rods (311), one side of the middle vertical circular tube (102) is fixedly connected to a left rear vertical plate (201) and a left front vertical plate (203), and the other side of the middle vertical circular tube (102) is fixedly connected to a right rear vertical plate (202) and a right front vertical plate (203). The vertical plate (204) is fixedly connected to the outside of the left rear vertical plate (201) and the right rear vertical plate (202) with a rear curved plate (208), and the outside of the left front vertical plate (203) and the right front vertical plate (204) are fixedly connected to the front curved plate (207), and the bottom of the front curved plate (207) and the rear curved plate (208) is fixedly connected to a bottom connecting ring (206), and the middle of the bottom connecting ring (206) is fixedly connected to a middle vertical circular tube (102).

2. A reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline according to claim 1, characterized in that: The number of the horizontal plates (306) is two, and the two horizontal plates (306) are perpendicular to each other. The number of the stirring rods (311) is four.

3. A reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline according to claim 1, characterized in that: The number of the bottom supporting legs (103) is four, and the four bottom supporting legs (103) are evenly distributed on the bottom side surface of the bottom distillation cover (104). The front curved plate (207) and the middle part of the middle vertical circular tube (102) are fixedly connected with a heating rod (205), and the rear curved plate (208) and the middle part of the middle vertical circular tube (102) are fixedly connected with a heating rod (205).

4. A reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline according to claim 1, characterized in that: One side of the central vertical circular tube (102) is fixedly connected to an outer vertical plate (307), the middle of the outer vertical plate (307) is movably connected to a left horizontal tube (308), the inner side of the central vertical circular tube (102) is movably connected to an inner movable plate (310), and the end of the left horizontal tube (308) is fixedly connected to the left horizontal tube (308).

5. A reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline according to claim 1, characterized in that: The other side of the central vertical circular tube (102) is fixedly connected with a right transverse tube (309), and the right transverse tube (309) is located in the middle of the right rear vertical plate (202) and the right front vertical plate (204).

6. A reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline according to claim 4, characterized in that: The left transverse tube (308) is located in the middle of the left rear vertical plate (201) and the left front vertical plate (203).

7. A reaction kettle for the synthesis of 2-methyl-3-trifluoromethylaniline according to claim 1, characterized in that: The axis of the front arc plate (207) and the rear arc plate (208) is the same as the axis of the middle vertical circular tube (102), and the top hemispherical cover (101), the middle vertical circular tube (102) and the bottom circular cover (312) are an integrated structure.

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