Reaction kettle lining for preparing transition metal catalyst

Abstract

A reaction kettle lining for preparing a transition metal catalyst relates to the technical field of nano material preparation, and comprises a lining body and a sealing cover arranged at the top of the lining body, and further comprises a plurality of barrel-shaped partition plates which are arranged in the lining body and are different in size, and through holes for mounting one-way floating air valves are formed in the tops of the barrel-shaped partition plates. A plurality of sliding grooves distributed in the circumferential direction are formed in the bottom of the lining body, each sliding groove extends in the radial direction, positioning columns in sliding fit are arranged in the sliding grooves, and limiting holes matched with the positioning columns in an inserted mode are formed in the bottom of the cylindrical partition plate. A first sealing gasket is arranged at the bottom of each cylindrical partition plate, and a plurality of annular pressing blocks which are distributed in a circumferential array mode and used for pressing the corresponding cylindrical partition plates are arranged at the bottom of the sealing cover. According to the reaction kettle lining, the reaction kettle lining is divided into two reactors with different volumes through the cylindrical partition plate, and the problems that a traditional partition plate and a reaction kettle lining are of an integrated structure, and only a reaction with a fixed volume can be carried out are solved.

Description

Technical Field

[0001] This invention belongs to the field of nanomaterial preparation technology, specifically relating to a reactor liner for preparing transition metal catalysts. Background Technology

[0002] Reactions for preparing transition metal catalysts are typically carried out in reactors, especially on an industrial scale where stainless steel reactors are used, while glass reactors may be used in the laboratory. Different methods exist for preparing transition metal catalysts, but all require reactors to meet specific conditions, such as temperature, pressure, and stirring. In existing technologies, a cylindrical inner cylinder is usually installed within the reactor to divide it into two reaction chambers, with the inner cylinder and reactor liner forming an integral structure. This results in a fixed volume ratio of the reaction chambers required for catalyst preparation reactions, limiting the applicability of reactors with an integrated partition and reactor liner structure for catalyst preparation reactions. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this invention is to provide a reactor liner for preparing transition metal catalysts.

[0004] The purpose of this utility model is achieved by the following technical solution: a reactor liner for preparing transition metal catalysts according to this utility model includes a liner body, a sealing cap disposed on the top of the liner body, and several cylindrical partitions of different sizes disposed inside the liner body. The top of the cylindrical partitions is provided with a through hole for installing a single-way floating gas valve. The bottom of the liner body is provided with several circumferentially distributed grooves, each groove extending radially. A slidingly fitted positioning post is provided in the groove. The bottom of the cylindrical partitions is provided with a limiting hole that is inserted into the positioning post. The bottom of the cylindrical partitions is also provided with a first sealing gasket, and the limiting hole penetrates the first sealing gasket. The bottom of the sealing cap is provided with several annular pressing blocks distributed in a circumferential array for pressing the corresponding cylindrical partitions.

[0005] Furthermore, the cylindrical partition adopts a first and a second cylindrical partition.

[0006] Furthermore, the number of grooves provided at the bottom of the inner lining body is four.

[0007] Furthermore, the bottom of the sealing cover is provided with a first pressing block that matches the first partition and a second pressing block that matches the second partition.

[0008] Furthermore, a second sealing gasket is provided at the bottom of the annular pressure block.

[0009] Furthermore, the bottom of the annular pressure block has a groove for interlocking with the top of the cylindrical partition, and a second sealing gasket is provided in the groove.

[0010] Furthermore, the cylindrical partition is made of polytetrafluoroethylene (PTFE).

[0011] Beneficial effects: By sliding the groove and positioning column together, the position of the positioning column can be adjusted to adapt to the volume ratio of the reactor for different reactions. This allows the reactor liner to prepare transition metal catalysts for reactions requiring different reactor volumes. Furthermore, the position of the positioning column can be determined according to the required reactor volume ratio, enabling rapid assembly of the interlocking baffle to quickly adapt to the required reactor volume ratio for different reactions. This solves the problem of traditional reactors with a fixed, integrated baffle and reactor liner structure, which limits the reactor volume ratio to a specific catalyst preparation reaction and necessitates replacing the reactor when the required reactor volume ratio changes. This improves the adaptability of the reactor liner for preparing transition catalysts.

[0012] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a top view of the reactor liner for preparing transition metal catalysts according to this utility model.

[0014] Figure 2 for Figure 1 A three-dimensional sectional view along the AA direction.

[0015] Figure 3 for Figure 1 Vertical sectional view along the BB direction.

[0016] Figure 4 for Figure 3 Enlarged view of section I in the middle.

[0017] Figure 5 This is a horizontal cross-sectional view of the first partition plate assembled in the lining of a reactor for preparing a transition metal catalyst according to this invention.

[0018] Figure 6 This is a horizontal cross-sectional view of the assembly of a second partition plate in the lining of a reactor for preparing a transition metal catalyst according to this invention.

[0019] Reference numerals: 1. Inner liner body; 101. First reactor; 102. Second reactor; 103. Slide groove; 2. Positioning column; 301. First partition; 302. Second partition; 303. Limiting hole; 4. Through hole; 5. Sealing cover; 501. First pressure block; 502. Second pressure block; 601. First sealing gasket; 602. Second sealing gasket. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings:

[0021] like Figure 1 and Figure 2 As shown, a reactor liner for preparing transition metal catalysts includes a cylindrical liner body 1, a sealing cap 5 disposed on the top of the reactor liner, and cylindrical partitions of different sizes disposed inside the liner body 1. In this embodiment, a cylindrical first partition 301 is used. In other embodiments of this invention, rectangular or triangular partitions can be used. The aforementioned cylindrical first partition 301 divides the liner body 1 into two independent reactors, namely a first reactor 101 containing transition metal salt reactants or reaction solutions and a second reactor 101 containing reducing agent reactants or reaction solutions. Reactor 102; the first partition 301 is made of high temperature and corrosion resistant material, preferably polytetrafluoroethylene material in this embodiment, which has good sealing performance and can ensure independent sealing between different reaction areas; the top of the first partition 301 is provided with a through hole 4 for installing a single-way floating gas valve, so that volatile reactants or reducing gases can enter the corresponding reactor through the single-way floating gas valve. The single-way floating gas valve is made of corrosion resistant material and is designed with an anti-backflow device to avoid leakage or backflow of volatile substances. In this embodiment, a diaphragm type single-way floating pneumatic valve is preferably used.

[0022] Furthermore, it also includes a plurality of circumferentially distributed sliding grooves 103 disposed at the bottom of the inner lining body 1, with each sliding groove 103 extending radially. Each sliding groove 103 is provided with a slidingly engaging positioning post 2. In this embodiment, the number of circumferentially distributed sliding grooves 103 can be set as needed. Preferably, such as… Figure 5 As shown, when the first partition plate 301 is assembled inside the inner liner body 1, four corresponding sliding grooves 103 are provided at its bottom. Through the sliding engagement of the positioning post 2 and the sliding groove 103, cylindrical partition plates of different sizes can be installed at different positions within the inner liner body 1. Furthermore, markings can be set along the length of the sliding groove 103 to facilitate determining the marking positions according to the required reaction volume ratio, and then quickly determining the position of the positioning post 2 based on the aforementioned markings, thereby improving the efficiency of assembling the cylindrical partition plates within the inner liner body 1. Figure 3As shown, the bottom of the first partition 301 is provided with a limiting hole 303 for insertion and engagement with the positioning post 2, and the top shape of the positioning post 2 matches the cross-sectional shape of the limiting hole 303 (e.g., Figure 4 As shown), by means of the insertion and cooperation of the aforementioned positioning post 2 and the limiting hole 303, cylindrical partitions of different sizes can be positioned at different positions in the inner liner body 1, thereby changing the volume of the first reactor 101 and the second reactor 102 to adapt to different reaction requirements, and also ensuring the stability of the first partition 301 in the inner liner body 1; a first sealing gasket 601 is provided at the bottom of the first partition 301 to prevent reactants or reaction solutions in one reactor from entering the other reactor, and the aforementioned limiting hole 303 penetrates the first sealing gasket 601; when the sealing cover 5 is placed on the inner liner body 1, the bottom of the sealing cover 5 can be provided with several annular pressing blocks arranged in a circumferential array as needed to press the cylindrical partition. In this embodiment, a first pressing block 501 matching the first partition 301 is provided at the bottom of the sealing cover 5 (e.g., Figure 2 As shown, a second sealing gasket 602 is provided at the bottom of the first pressure block 501. Furthermore, a second sealing gasket 602 can also be provided at the top of the first partition 301 to cooperate with the sealing cover 5 to achieve a better sealing effect. Preferably, a groove can be opened at the bottom of the first pressure block 501 to engage with the first partition 301, and a second sealing gasket 602 is provided on the inner wall of the groove that contacts the top of the first partition 301, so that the first partition 301 can be located in the groove and the sealing cover 5 applies downward pressure to achieve a better sealing effect and make the first partition 301 more stable in the inner liner body 1.

[0023] In another embodiment of this utility model, the cylindrical partition adopts a second partition 302 in the shape of a cylinder. In this case, the positioning post 2 is moved from the position of the first partition 301 in the slide groove 103 to the position of the second partition 302 (e.g. Figure 6 As shown), the bottom of the second partition 302 is also provided with a limiting hole 303 for insertion and engagement with the positioning post 2, and the bottom of the sealing cover 5 is provided with a second pressure block 502 that matches the second partition 302; at this time, the second partition 302 divides the inner liner body 1 into the first reactor 101 and the second reactor 102. Figure 1 The first reactor 101 and the second reactor 102, which are divided by the first partition 301, have different volume ratios to meet the requirements of other reactions for reactor volume ratios; the remaining assembly schemes are the same as those described above and will not be described in detail here.

[0024] In other embodiments of this invention, multiple baffles can be set in the inner liner body 1 (at this time, multiple positioning columns 2 in the chute 103 can be set) to divide the reactor liner into multiple reactors, and different reactants are placed in the multiple reactors respectively. The transfer of volatile reactants is realized through a single-pass floating gas valve, so that this invention can simultaneously prepare multiple catalysts in the same reactor.

[0025] By employing the aforementioned technical solution, and by setting a first partition 301 and a second partition 302 of different sizes in the inner liner body 1, the reactor liner can accommodate two reactors of different volumes required for reactants or reaction solutions in catalyst preparation reactions. This avoids the limitations of traditional reactors where a fixed volume ratio of the reactor can only be used for the preparation of one type of catalyst reaction, and the need to replace the reactor when the required reactor volume ratio for reactants or reaction solutions changes in other reactions. Furthermore, a reactor liner can be divided into multiple reactors of different ratios to enable the preparation of multiple catalysts in the same reactor, thereby improving the adaptability of the reactor liner for the preparation of over-catalyst reactions.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the design and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A reactor vessel lining for the preparation of transition metal catalysts, comprising a lining body (1), a sealing cover (5) arranged on top of the lining body (1), characterized in that: It also includes several cylindrical partitions of different sizes disposed inside the inner lining body (1). The top of the cylindrical partition is provided with a through hole (4) for installing a single-way floating air valve. The bottom of the inner lining body (1) is provided with several circumferentially distributed sliding grooves (103) and each sliding groove (103) extends radially. The sliding groove (103) is provided with a slidingly fitted positioning post (2). The bottom of the cylindrical partition is provided with a limiting hole (303) that is inserted into the positioning post (2). The bottom of the cylindrical partition is also provided with a first sealing gasket (601). The limiting hole (303) penetrates the first sealing gasket (601). The bottom of the sealing cover (5) is provided with several annular pressure blocks arranged in a circumferential array for pressing the corresponding cylindrical partitions.

2. A reactor inner liner for the preparation of transition metal catalysts according to claim 1, characterized in that The cylindrical partition adopts a first partition (301) and a second partition (302) in the shape of a cylinder.

3. A reactor inner liner for the preparation of transition metal catalysts according to claim 1, characterized in that The number of grooves (103) set at the bottom of the inner lining body (1) is four.

4. A reactor inner liner for the preparation of transition metal catalysts according to claim 2, characterized in that: The bottom of the sealing cover (5) is provided with a first pressure block (501) that matches the first partition (301) and a second pressure block (502) that matches the second partition (302).

5. The reactor inner liner for making transition metal catalysts according to claim 1, characterized in that: A second sealing gasket (602) is provided at the bottom of the annular pressure block.

6. A reactor inner liner for the preparation of transition metal catalysts according to claim 5, characterized in that: The bottom of the annular pressure block has a groove for interlocking with the top of the cylindrical partition, and a second sealing gasket (602) is provided in the groove.

7. A reactor inner liner for the preparation of transition metal catalysts according to any one of claims 1 to 6, characterized in that: The cylindrical partition is made of polytetrafluoroethylene.

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