CN211274619U - Esterification reaction device for preparing trioctyl trimellitate - Google Patents
Esterification reaction device for preparing trioctyl trimellitate Download PDFInfo
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- CN211274619U CN211274619U CN201921501284.7U CN201921501284U CN211274619U CN 211274619 U CN211274619 U CN 211274619U CN 201921501284 U CN201921501284 U CN 201921501284U CN 211274619 U CN211274619 U CN 211274619U
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- reaction vessel
- top cover
- trioctyl trimellitate
- stirring shaft
- auxiliary base
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Abstract
The utility model provides a trioctyl trimellitate preparation is with esterification reaction device, its characterized in that: including reaction vessel and auxiliary base, reaction vessel bottom central authorities are equipped with the (mixing) shaft, be equipped with a plurality of stirring vane on the (mixing) shaft, the last one end upper portion of keeping away from the (mixing) shaft of stirring vane is equipped with the fluting, be equipped with netted top cap on the fluting, the reaction vessel lower part is equipped with auxiliary base, the inside work motor that is equipped with of auxiliary base, reaction vessel's bottom surface below is equipped with a plurality of heater. Compared with the prior art, through at the inside (mixing) shaft that sets up of reaction vessel to control the (mixing) shaft through the work motor and stir, guaranteed the even of stirring, set up the fluting that can place the catalyst in stirring vane inside, and fix through netted top cap, thereby avoided the step of reaction end back filtration catalyst, set up the heater in the reaction vessel bottom, can be accurate control the temperature through the work motor.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a plasticizer preparation technical field, in particular to trioctyl trimellitate preparation is with esterification reaction device.
[ background of the invention ]
Trioctyl trimellitate is a novel special high-grade plasticizer, can be used for 105-grade cable materials and other heat-resistant products, and can also be used for nitrocellulose, ethyl cellulose, polymethyl methacrylate and other plastics.
Trioctyl trimellitate is prepared by esterification of trimellitic anhydride and octanol, a catalyst commonly used for catalytic esterification reaction, such as concentrated sulfuric acid, solid acid, metal oxide, titanate and the like, can be used as a catalyst for preparing trioctyl trimellitate, a reaction crude product is subjected to purification processes such as neutralization, water washing, decoloration, dealcoholization and the like to obtain a product, and synthesis conditions and purification processes under different catalysts have certain differences. In the prior art, a supported SnO catalyst with viscose-based active carbon fiber as a carrier is adopted. Through reasonable control of reaction conditions, purification processes such as neutralization, water washing, decoloration and the like can be avoided, however, the catalyst still needs to be filtered after the reaction is finished, and the problems of difficult control of reaction temperature, uneven stirring and the like of a common reaction vessel exist.
[ Utility model ] content
An object of the utility model is to overcome above-mentioned prior art not enough, provide an esterification reaction device is used in trioctyl trimellitate preparation, it aims at solving among the prior art trioctyl trimellitate preparation reaction and needs the filtering catalyst after finishing, and ordinary reaction vessel's existence reaction temperature is not controlled well, stirs inhomogeneous scheduling problem.
In order to realize the purpose, the utility model provides a trioctyl trimellitate preparation is with esterification reaction device which characterized in that: including reaction vessel, auxiliary base, (mixing) shaft, stirring vane, heater and work motor, reaction vessel bottom central authorities are equipped with the (mixing) shaft, be equipped with a plurality of stirring vane on the (mixing) shaft, the last one end upper portion of keeping away from the (mixing) shaft of stirring vane is equipped with the fluting, be equipped with netted top cap on the fluting, the reaction vessel lower part is equipped with auxiliary base, the inside work motor that is equipped with of auxiliary base, even there is the revolving stage on the work motor, the revolving stage with the lower extreme of (mixing) shaft is connected, reaction vessel's bottom surface below is equipped with a plurality of heater, the heater with connect through the electric lead between the work motor, reaction vessel.
Preferably, the two sides of the upper part of the reaction vessel are provided with feed ports, the upper opening area of the feed ports is larger than the lower opening area of the feed ports, and the lower openings of the feed ports are tightly attached to the inner wall of the reaction vessel.
Preferably, the container top cover is positioned between the two feeding ports, the length of the container top cover is matched with the distance between the two feeding ports, and the container top cover is provided with a pull ring.
Preferably, the stirring shaft is of a hollow structure, a hollow area is arranged at the lower part of the stirring shaft, a thermometer is arranged in the stirring shaft, a temperature measuring part of the thermometer is positioned in the hollow area, and a reading part of the thermometer penetrates through the top cover of the container and is positioned outside the reaction container.
Preferably, the mesh-shaped top cover is fixedly connected with the stirring blade through a plurality of buckles.
Preferably, the heater and the rotating platform are both located inside the auxiliary base, and a plurality of control buttons for controlling the working motor, the heater and the rotating platform are arranged on the outer surface of the auxiliary base.
The utility model has the advantages that: compared with the prior art, the utility model provides a pair of trioctyl trimellitate preparation is with esterification reaction device, rational in infrastructure, through at the inside (mixing) shaft that sets up of reaction vessel, and control the (mixing) shaft through the work motor and stir, the even of stirring has been guaranteed, can place the fluting of catalyst in stirring vane inside setting, and fix through netted top cap, thereby avoided the step of reaction end back filtration catalyst, set up the heater bottom the reaction vessel, can be accurate control the temperature through the work motor.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of an esterification reaction apparatus for preparing trioctyl trimellitate in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the stirring blade according to the embodiment of the present invention.
In the figure: 1-a reaction vessel, 11-a feeding port, 12-a vessel top cover, 121-a pull ring, 2-an auxiliary base, 3-a stirring shaft, 31-a hollowed-out area, 4-a stirring blade, 411-a net-shaped top cover, 412-a buckle, 5-a rotating table, 6-a working motor, 7-a thermometer and 8-a heater.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an esterification apparatus for preparing trioctyl trimellitate, which is characterized in that: including reaction vessel 1, supplementary base 2, (mixing) shaft 3, stirring vane 4, heater 8 and work motor 6, 1 bottom central authorities of reaction vessel are equipped with (mixing) shaft 3, (mixing) shaft 3 is last to be equipped with a plurality of stirring vane 4, the one end upper portion of keeping away from (mixing) shaft 3 on stirring vane 4 is equipped with fluting 41, be equipped with netted top cap 411 on the fluting 41, 1 lower part of reaction vessel is equipped with supplementary base 2, 2 inside work motors 6 that are equipped with of supplementary base, it has revolving stage 5 to link on the work motor 6, revolving stage 5 with the lower extreme of (mixing) shaft 3 is connected, the bottom surface below of reaction vessel 1 is equipped with a plurality of heater 8, heater 8 with connect through the electric lead between the work motor 6, 1 upper portion of reaction vessel is equipped with container.
And the two sides of the upper part of the reaction vessel 1 are provided with feed ports 11, the upper opening area of the feed ports 11 is larger than the lower opening area of the feed ports 11, and the lower openings of the feed ports 11 are tightly attached to the inner wall of the reaction vessel 1.
The container top cover 12 is positioned between the two feeding ports 11, the length of the container top cover 12 is matched with the distance between the two feeding ports 11, and the container top cover 12 is provided with a pull ring 121.
The stirring shaft 3 is of a hollow structure, a hollow area 31 is arranged on the lower portion of the stirring shaft 3, a thermometer 7 is arranged inside the stirring shaft 3, the temperature measuring portion of the thermometer 7 is located in the hollow area 31, and the reading portion of the thermometer 7 penetrates through the container top cover 12 and is located outside the reaction container 1. The mesh top cover 411 and the stirring blade 4 are fixedly connected through a plurality of buckles 412. The heater 8 with the revolving stage 5 all is located inside the auxiliary base 2, 2 external surface of auxiliary base is equipped with a plurality of and is used for controlling the operating button of work motor 6, heater 8 and revolving stage 5.
The utility model discloses the working process:
the utility model relates to a trioctyl trimellitate preparation is with esterification reaction device in the course of the work, earlier put into solid catalyst in stirring vane 4's fluting 41, and with fixed back of netted top cap 411, drop into the reaction raw materials along dog-house 11, and cover container top cap 12, open work motor 6, drive revolving stage 5 and heater 8 work, revolving stage 5 drives (mixing) shaft 3 and rotates, the temperature of reactant in the thermometer 7 of (mixing) shaft 3 inside can the real-time detection container, thereby change inside temperature through adjustment heater 8 at any time, after the reaction, can directly take out the catalyst in the fluting 41, need not through steps such as filtration.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (6)
1. An esterification reaction device for preparing trioctyl trimellitate is characterized in that: comprises a reaction vessel (1), an auxiliary base (2), a stirring shaft (3), stirring blades (4), a heater (8) and a working motor (6), wherein the central part of the bottom of the reaction vessel (1) is provided with the stirring shaft (3), the stirring shaft (3) is provided with a plurality of stirring blades (4), the upper part of one end of the stirring blade (4) far away from the stirring shaft (3) is provided with a slot (41), the slot (41) is provided with a net-shaped top cover (411), the lower part of the reaction vessel (1) is provided with the auxiliary base (2), the working motor (6) is arranged in the auxiliary base (2), the working motor (6) is connected with a rotating platform (5), the rotating platform (5) is connected with the lower end of the stirring shaft (3), the lower part of the bottom surface of the reaction vessel (1) is provided with a plurality of heaters (8), and the heaters (8) are connected, the upper part of the reaction vessel (1) is provided with a vessel top cover (12).
2. An esterification reaction apparatus for producing trioctyl trimellitate according to claim 1, wherein: the feeding ports (11) are arranged on two sides of the upper portion of the reaction container (1), the opening area of the upper portion of each feeding port (11) is larger than that of the lower portion of each feeding port (11), and the lower opening of each feeding port (11) is tightly attached to the inner wall of the reaction container (1).
3. The esterification reaction apparatus for producing trioctyl trimellitate according to claim 2, wherein: the container top cover (12) is positioned between the two feeding ports (11), the length of the container top cover (12) is matched with the distance between the two feeding ports (11), and a pull ring (121) is arranged on the container top cover (12).
4. An esterification reaction apparatus for producing trioctyl trimellitate according to claim 1, wherein: the stirring shaft (3) is of a hollow structure, a hollow-out area (31) is arranged on the lower portion of the stirring shaft (3), a thermometer (7) is arranged inside the stirring shaft (3), the temperature measuring portion of the thermometer (7) is located in the hollow-out area (31), and the reading portion of the thermometer (7) penetrates through the container top cover (12) and is located outside the reaction container (1).
5. An esterification reaction apparatus for producing trioctyl trimellitate according to claim 1, wherein: the mesh-shaped top cover (411) is fixedly connected with the stirring blades (4) through a plurality of buckles (412).
6. An esterification reaction apparatus for producing trioctyl trimellitate according to claim 1, wherein: heater (8) with revolving stage (5) all are located inside auxiliary base (2), auxiliary base (2) external surface is equipped with the control button that a plurality of is used for controlling work motor (6), heater (8) and revolving stage (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921501284.7U CN211274619U (en) | 2019-09-10 | 2019-09-10 | Esterification reaction device for preparing trioctyl trimellitate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921501284.7U CN211274619U (en) | 2019-09-10 | 2019-09-10 | Esterification reaction device for preparing trioctyl trimellitate |
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| CN211274619U true CN211274619U (en) | 2020-08-18 |
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| CN201921501284.7U Active CN211274619U (en) | 2019-09-10 | 2019-09-10 | Esterification reaction device for preparing trioctyl trimellitate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449108A (en) * | 2019-09-10 | 2019-11-15 | 浙江伟博化工科技有限公司 | Esterification device is used in a kind of preparation of trioctyl trimellitate (TOTM) |
-
2019
- 2019-09-10 CN CN201921501284.7U patent/CN211274619U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449108A (en) * | 2019-09-10 | 2019-11-15 | 浙江伟博化工科技有限公司 | Esterification device is used in a kind of preparation of trioctyl trimellitate (TOTM) |
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