CN212882451U - System for continuous nitration mesitylene of four cauldron series connections - Google Patents
System for continuous nitration mesitylene of four cauldron series connections Download PDFInfo
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- CN212882451U CN212882451U CN202021520436.0U CN202021520436U CN212882451U CN 212882451 U CN212882451 U CN 212882451U CN 202021520436 U CN202021520436 U CN 202021520436U CN 212882451 U CN212882451 U CN 212882451U
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- chamber
- reaction kettle
- mesitylene
- room
- waste liquid
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- AUHZEENZYGFFBQ-UHFFFAOYSA-N mesitylene Substances CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 125000001827 mesitylenyl group Chemical group [H]C1=C(C(*)=C(C([H])=C1C([H])([H])[H])C([H])([H])[H])C([H])([H])[H] 0.000 title claims abstract description 43
- 238000006396 nitration reaction Methods 0.000 title claims description 13
- 239000007788 liquid Substances 0.000 claims abstract description 81
- 239000002699 waste material Substances 0.000 claims abstract description 65
- 238000006243 chemical reaction Methods 0.000 claims abstract description 63
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 238000002360 preparation method Methods 0.000 claims description 31
- 238000005406 washing Methods 0.000 claims description 23
- 238000000605 extraction Methods 0.000 claims description 18
- 238000006386 neutralization reaction Methods 0.000 claims description 15
- 239000012074 organic phase Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000003472 neutralizing effect Effects 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 33
- 239000002994 raw material Substances 0.000 abstract description 4
- 150000002732 mesitylenes Chemical class 0.000 abstract description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 239000002253 acid Substances 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- 230000001546 nitrifying effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- SCEKDQTVGHRSNS-UHFFFAOYSA-N 1,3,5-trimethyl-2-nitrobenzene Chemical group CC1=CC(C)=C([N+]([O-])=O)C(C)=C1 SCEKDQTVGHRSNS-UHFFFAOYSA-N 0.000 description 2
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 description 2
- 239000010812 mixed waste Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- NOGFHTGYPKWWRX-UHFFFAOYSA-N 2,2,6,6-tetramethyloxan-4-one Chemical compound CC1(C)CC(=O)CC(C)(C)O1 NOGFHTGYPKWWRX-UHFFFAOYSA-N 0.000 description 1
- FECNOIODIVNEKI-UHFFFAOYSA-N 2-[(2-aminobenzoyl)amino]benzoic acid Chemical class NC1=CC=CC=C1C(=O)NC1=CC=CC=C1C(O)=O FECNOIODIVNEKI-UHFFFAOYSA-N 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a four cauldron series connection sym-trimethylbenzene's system is nitrified in succession, prepare room and filter core including the waste liquid, the waste liquid is prepared the left side of room and has been seted up sym-trimethylbenzene and add the mouth, and the upper end central point that the room was prepared to the waste liquid puts and settle and have first motor, the lower extreme of first motor is connected with the pivot, and the outside of pivot is fixed with first stirring leaf, the upper end right side that the room was prepared to the waste liquid is connected with the connecting pipe, and the right side that the room was prepared to the waste liquid is connected with first reation. This four cauldron series connection in succession nitrify mesitylene's system is provided with first reation kettle, second reation kettle, third reation kettle and divide and be the parallely form between the liquid cauldron and distribute, the first reation kettle of series connection intercommunication, second reation kettle, third reation kettle and divide the liquid cauldron for this mesitylene production system can realize continuous feeding, promotes production efficiency, the human cost that has significantly reduced simultaneously, technological parameter is stable, the conversion rate and the product yield of raw materials are stable.
Description
Technical Field
The utility model relates to a mesitylene production technical field specifically is a four cauldron series connection are in succession nitrify mesitylene's system.
Background
The mesitylene is colorless transparent liquid, mesitylene is an important organic chemical raw material, and various dye intermediates such as mesitylene, trimesic acid, benzoic anhydride and the like can be developed by utilizing the mesitylene, and the mesitylene can also be used for producing an antioxidant, a polyester resin curing agent, a stabilizer, an alkyd resin plasticizer and the like. As mesitylene is a good solvent, it is flammable, irritating and has a very low freezing point. In the electronics industry, it is used as a developer for silicone photosensitive sheets.
In a production system of nitrated mesitylene on the market, the nitrated compound is produced by an intermittent method, and the product quality is unstable, time-consuming and labor-consuming; the problem that 2.5t of mixed waste acid of sulfuric acid, nitric acid and acetic acid can be generated when 1t of nitromesitylene with the yield of 92% is produced, and the sewage treatment cost is high is solved, and therefore, the system for continuously nitrifying the mesitylene by serially connecting four kettles is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a system for continuously nitrifying mesitylene by connecting four kettles in series, which aims to solve the problems that the production system for nitrifying mesitylene provided by the background technology uses an intermittent method to produce nitrified substances, and the product quality is unstable, and wastes time and labor; the production of 1t of the nitro-mesitylene with the yield of 92 percent can generate 2.5t of mixed waste acid of sulfuric acid, nitric acid and acetic acid, and the sewage treatment cost is high.
In order to achieve the above object, the utility model provides a following technical scheme: a system for continuous nitration of mesitylene by four-kettle series connection comprises a waste liquid preparation chamber and a filter element, wherein a mesitylene adding port is formed in the left side of the waste liquid preparation chamber, a first motor is arranged at the central position of the upper end of the waste liquid preparation chamber, a rotating shaft is connected to the lower end of the first motor, a first stirring blade is fixed on the outer side of the rotating shaft, a connecting pipe is connected to the right side of the upper end of the waste liquid preparation chamber, a first reaction kettle is connected to the right side of the waste liquid preparation chamber, a thermal circulation inlet is formed in the left side of the first reaction kettle, a second motor is arranged at the central position of the upper end of the first reaction kettle, a second stirring blade is connected to the lower end of the second motor, a second reaction kettle and a thermal circulation outlet are sequentially connected to the first reaction kettle from top to bottom, a third reaction kettle is connected to the right side of the second reaction kettle, a, the lower extreme of room is prepared to the waste liquid is connected with the treatment chamber, and the lower extreme of treatment chamber is connected with the lid, the lower extreme of lid links up first row of useless room, and the inboard of lid wears to be equipped with the gim peg, the filter core sets up in first row of useless indoor central point and puts, and the upper end of filter core is fixed with fastening bolt, divide the lower extreme of liquid cauldron to have seted up and divide liquid cauldron discharge gate, and the lower extreme that divides the liquid cauldron discharge gate is connected with the neutralization chamber, the lower extreme of neutralization chamber is connected with liquid alkali room, and the left side of neutralization chamber is connected with the washing room, the lower extreme of washing room is connected with the useless room of second row, and the left side of washing room is connected with extraction organic phase room, the product outlet has been seted.
Preferably, the vertical central axis of the first motor is consistent with the vertical central axis of the rotating shaft, the first stirring blade is vertically and fixedly connected with the rotating shaft, and the first stirring blade forms a rotating structure with the first motor through the rotating shaft.
Preferably, the first reaction kettle, the second reaction kettle, the third reaction kettle and the liquid separating kettle are distributed in a parallel shape, and the first reaction kettle, the second reaction kettle, the third reaction kettle and the liquid separating kettle are communicated in series.
Preferably, the fixing bolt penetrates through the inner side of the cover body, the cover body and the first row of waste chambers are distributed in a parallel mode, and the cover body and the first row of waste chambers form a movable structure through the fixing bolt.
Preferably, the filter core is concentric with the first row of useless room and distributes, and the filter core passes through fastening bolt and constitutes threaded connection between the first row of useless room to first row of useless room all is provided with the filter core with the second row of useless indoor portion.
Preferably, the neutralization chamber, the water washing chamber and the organic phase extraction chamber are distributed in parallel, and the neutralization chamber, the water washing chamber and the organic phase extraction chamber are communicated with each other.
Compared with the prior art, the beneficial effects of the utility model are that: the system for continuously nitrifying mesitylene by connecting four kettles in series is provided with a first motor, the vertical central axis of the first motor is consistent with the vertical central axis of a rotating shaft, the first motor and the rotating shaft with consistent vertical central axes can ensure the position accuracy between the first motor and the rotating shaft, the stirring effect of a first stirring blade on the interior of a waste liquid preparation chamber is ensured, the preparation efficiency and effect of liquid in the waste liquid preparation chamber are improved in a stirring mode, waste acid enters the waste liquid preparation chamber through a connecting pipe, and clean production is realized by using waste acid, so that the production quality of the whole mesitylene production system is improved;
the first reaction kettle, the second reaction kettle, the third reaction kettle and the liquid separating kettle are distributed in parallel and are communicated in series, so that the mesitylene production system can realize continuous feeding, the production efficiency is improved, the labor cost is greatly reduced, the process parameters are stable, and the conversion rate of raw materials and the product yield are stable;
the filter core is the concentric circle distribution with first row of useless room, set up the useless room of second row at the first row of useless room of process chamber lower extreme and washing room lower extreme respectively, can filter discharged liquid, realize cleaner production, swing joint's lid is convenient for dismantle and change the filter core of inside, the dismantlement is installed to the accessible fastening bolt, thereby guarantee the cleanness of flowing back, promote this mesitylene production system's result of use, the neutralization chamber of intercommunication form, washing room and extraction organic phase room, guarantee the smoothness nature of liquid transport, thereby guarantee this continuation of mesitylene production system production.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the waste liquid preparation chamber of the present invention;
FIG. 3 is a schematic view of the filter element of the present invention;
fig. 4 is the schematic view of the work flow structure of the present invention.
In the figure: 1. a waste liquid preparation chamber; 2. a mesitylene addition port; 3. a first motor; 4. a rotating shaft; 5. a first stirring blade; 6. a connecting pipe; 7. a first reaction kettle; 8. a thermal cycle inlet; 9. a second motor; 10. a second stirring blade; 11. a thermal cycle outlet; 12. a second reaction kettle; 13. a third reaction kettle; 14. a liquid separation kettle; 15. a processing chamber; 16. a cover body; 17. a first row of waste chambers; 18. a fixing bolt; 19. a filter element; 20. fastening a bolt; 21. a discharge hole of the liquid separation kettle; 22. a neutralization chamber; 23. a liquid caustic chamber; 24. a water washing chamber; 25. a second waste chamber; 26. an organic phase extraction chamber; 27. and (5) product outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a system for continuous nitration of mesitylene with four kettles connected in series comprises a waste liquid preparation chamber 1, a mesitylene adding port 2, a first motor 3, a rotating shaft 4, a first stirring blade 5, a connecting pipe 6, a first reaction kettle 7, a thermal circulation inlet 8, a second motor 9, a second stirring blade 10, a thermal circulation outlet 11, a second reaction kettle 12, a third reaction kettle 13, a liquid separation kettle 14, a treatment chamber 15, a cover body 16, a first waste discharge chamber 17, a fixing bolt 18, a filter element 19, a fastening bolt 20, a liquid separation kettle discharge port 21, a neutralization chamber 22, a liquid caustic soda chamber 23, a water washing chamber 24, a second waste discharge chamber 25, an organic extraction phase chamber 26 and a product outlet 27, wherein the mesitylene adding port 2 is arranged on the left side of the waste liquid preparation chamber 1, the first motor 3 is arranged at the center of the upper end of the waste liquid preparation chamber 1, the rotating shaft 4 is connected with the lower end of the first motor 3, and the first stirring blade 5 is fixed on the outer side of the rotating, the vertical central axis of the first motor 3 is consistent with the vertical central axis of the rotating shaft 4, the first stirring blade 5 is vertically and fixedly connected with the rotating shaft 4, the first stirring blade 5 forms a rotating structure with the first motor 3 through the rotating shaft 4, the first motor 3 and the rotating shaft 4 with the consistent vertical central axes can guarantee the accuracy of the positions between the first stirring blade 5 and the rotating shaft 4, the stirring effect of the first stirring blade 5 on the interior of the waste liquid preparation chamber 1 is guaranteed, the preparation efficiency and effect of liquid in the waste liquid preparation chamber 1 are improved through a stirring mode, waste acid enters the waste liquid preparation chamber 1 through the connecting pipe 6, and clean production is realized by using waste acid, so that the production quality of the whole mesitylene production system is improved;
the right side of the upper end of the waste liquid preparation chamber 1 is connected with a connecting pipe 6, the right side of the waste liquid preparation chamber 1 is connected with a first reaction kettle 7, the left side of the first reaction kettle 7 is provided with a thermal cycle inlet 8, the central position of the upper end of the first reaction kettle 7 is provided with a second motor 9, the lower end of the second motor 9 is connected with a second stirring blade 10, the first reaction kettle 7 is sequentially connected with a second reaction kettle 12 and a thermal cycle outlet 11 from top to bottom, the right side of the second reaction kettle 12 is connected with a third reaction kettle 13, the right side of the third reaction kettle 13 is connected with a liquid separating kettle 14, the first reaction kettle 7, the second reaction kettle 12, the third reaction kettle 13 and the liquid separating kettle 14 are distributed in a parallel shape, the first reaction kettle 7, the second reaction kettle 12, the third reaction kettle 13 and the liquid separating kettle 14 are communicated in series, the mesitylene production system can realize continuous feeding, improve the production efficiency, greatly reduce the labor cost, and has stable process parameters, stable conversion rate of raw materials and stable product yield;
the lower end of the waste liquid preparing chamber 1 is connected with a processing chamber 15, the lower end of the processing chamber 15 is connected with a cover body 16, the lower end of the cover body 16 is connected with a first row of waste chambers 17, a fixing bolt 18 penetrates through the inner side of the cover body 16, a filter element 19 is arranged at the central position inside the first row of waste chambers 17, a fastening bolt 20 is fixed at the upper end of the filter element 19, the lower end of a liquid separating kettle 14 is provided with a liquid separating kettle discharge port 21, the lower end of the liquid separating kettle discharge port 21 is connected with a neutralizing chamber 22, the lower end of the neutralizing chamber 22 is connected with a liquid alkali chamber 23, the left side of the neutralizing chamber 22 is connected with a water washing chamber 24, the lower end of the water washing chamber 24 is connected with a second row of waste chambers 25, the left side of the water washing chamber 24 is connected with an organic extraction phase chamber 26, the lower end of the organic extraction phase chamber 26 is provided with a product outlet 27, the fixing bolt 18 penetrates through the inner side of the cover, the neutralization chamber 22, the water washing chamber 24 and the extraction organic phase chamber 26 are distributed in parallel, the neutralization chamber 22, the water washing chamber 24 and the extraction organic phase chamber 26 are communicated, the filter element 19 and the first row waste chamber 17 are distributed in a concentric circle, the filter element 19 is in threaded connection with the first row waste chamber 17 through a fastening bolt 20, the filter element 19 is arranged inside the first row waste chamber 17 and the second row waste chamber 25, the first row waste chamber 17 at the lower end of the treatment chamber 15 and the second row waste chamber 25 at the lower end of the water washing chamber 24 are respectively arranged, discharged liquid can be filtered, clean production is realized, the movably connected cover body 16 is convenient to disassemble and replace the filter element 19 inside, the mounting and disassembling can be carried out through the fastening bolt 20, the cleanness of discharged liquid is ensured, the use effect of the mesitylene production system is improved, the neutralization chamber 22, the water washing chamber 24 and the extraction organic phase chamber 26 are communicated, the smoothness of liquid conveying is ensured, so that the production continuity of the mesitylene production system is ensured.
The working principle is as follows: for the system of continuous nitration of mesitylene with four serially connected kettles, firstly, feeding material continuously to a first reaction kettle 7 with a total flow rate of 60ml/min, controlling the nitration of the first reaction kettle 7, a second reaction kettle 12 and a third reaction kettle 13, controlling the temperatures of the first reaction kettle 7, the second reaction kettle 12 and the third reaction kettle 13 to be 20-45 ℃, controlling the internal temperature of a liquid separating kettle 14 to be 40-45 ℃, controlling the molar ratio of mesitylene to nitric acid to be 1:1.06 and the effective concentration of sulfuric acid to be 70%, adding 9% acetic acid, feeding separated waste acid into a waste liquid preparation chamber 1 through a connecting pipe 6, adding a certain amount of nitric acid and sulfuric acid again, ensuring the accuracy of the positions between the two, ensuring the stirring effect of a first stirring blade 5 on the internal part of the waste liquid preparation chamber 1, and improving the preparation efficiency and effect of the liquid in the waste liquid preparation chamber 1 through a stirring mode, waste acid enters the waste liquid preparation chamber 1 through the connecting pipe 6, and clean production is realized by using waste acid, so that the production quality of the whole mesitylene production system is improved, the first reaction kettle 7, the second reaction kettle 12, the third reaction kettle 13 and the liquid separating kettle 14 which are communicated in series enable the mesitylene production system to realize continuous feeding, the production efficiency is improved, meanwhile, the labor cost is greatly reduced, the process parameters are stable, the conversion rate of raw materials and the product yield are stable, the first waste discharge chamber 17 arranged at the lower end of the treatment chamber 15 and the second waste discharge chamber 25 arranged at the lower end of the washing chamber 24 can filter discharged liquid, clean production is realized, the movably connected cover body 16 is convenient to disassemble and replace the internal filter element 19, the mounting and disassembling can be realized through the fastening bolt 20, so that the cleanness of discharged liquid is ensured, and the use effect of the mesitylene production system is improved, the communicated neutralization chamber 22, water washing chamber 24 and extraction organic phase chamber 26 ensure the smoothness of liquid delivery, thereby ensuring the production continuity of the mesitylene production system, the liquid separated from the liquid separation kettle 14 sequentially passes through the neutralization chamber 22, the water washing chamber 24 and the extraction organic phase chamber 26, and finally a finished product is produced through the extraction organic phase chamber 26, thus completing the use process of the whole four-kettle series continuous mesitylene nitration system.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a four cauldron series connection continuous nitration mesitylene's system, includes that waste liquid prepares room (1) and filter core (19), its characterized in that: the device comprises a waste liquid preparation chamber (1), wherein a mesitylene adding port (2) is formed in the left side of the waste liquid preparation chamber (1), a first motor (3) is arranged at the center position of the upper end of the waste liquid preparation chamber (1), a rotating shaft (4) is connected to the lower end of the first motor (3), a first stirring blade (5) is fixed on the outer side of the rotating shaft (4), a connecting pipe (6) is connected to the right side of the upper end of the waste liquid preparation chamber (1), a first reaction kettle (7) is connected to the right side of the waste liquid preparation chamber (1), a thermal circulation inlet (8) is formed in the left side of the first reaction kettle (7), a second motor (9) is arranged at the center position of the upper end of the first reaction kettle (7), a second stirring blade (10) is connected to the lower end of the second motor (9), a second reaction kettle (12) and a thermal circulation outlet (11) are sequentially, the right side of the second reaction kettle (12) is connected with a third reaction kettle (13), the right side of the third reaction kettle (13) is connected with a liquid separating kettle (14), the lower end of the waste liquid preparation chamber (1) is connected with a treatment chamber (15), the lower end of the treatment chamber (15) is connected with a cover body (16), the lower end of the cover body (16) is connected with a first row of waste chamber (17), a fixing bolt (18) penetrates through the inner side of the cover body (16), the filter element (19) is arranged at the central position inside the first row of waste chamber (17), a fastening bolt (20) is fixed at the upper end of the filter element (19), a liquid separating kettle discharge port (21) is formed at the lower end of the liquid separating kettle (14), the lower end of the liquid separating kettle discharge port (21) is connected with a neutralizing chamber (22), the lower end of the neutralizing chamber (22) is connected with a liquid alkali chamber (23), and the left side of the neutralizing chamber (, the lower extreme of washing room (24) is connected with second row useless room (25), and the left side of washing room (24) is connected with extraction organic phase room (26), product export (27) have been seted up to the lower extreme of extraction organic phase room (26).
2. The system for continuous nitration of mesitylene in series with four kettles according to claim 1, wherein: the vertical central axis of the first motor (3) is consistent with the vertical central axis of the rotating shaft (4), the first stirring blade (5) is fixedly connected with the rotating shaft (4) in a perpendicular mode, and the first stirring blade (5) forms a rotating structure between the rotating shaft (4) and the first motor (3).
3. The system for continuous nitration of mesitylene in series with four kettles according to claim 1, wherein: the first reaction kettle (7), the second reaction kettle (12), the third reaction kettle (13) and the liquid separating kettle (14) are distributed in a parallel shape, and the first reaction kettle (7), the second reaction kettle (12), the third reaction kettle (13) and the liquid separating kettle (14) are communicated in series.
4. The system for continuous nitration of mesitylene in series with four kettles according to claim 1, wherein: the fixed bolt (18) penetrates through the inner side of the cover body (16), the cover body (16) and the first waste discharge chamber (17) are distributed in a parallel mode, and the cover body (16) and the first waste discharge chamber (17) form a movable structure through the fixed bolt (18).
5. The system for continuous nitration of mesitylene in series with four kettles according to claim 1, wherein: filter core (19) are the centre of a circle distribution with first row of useless room (17), and constitute threaded connection between filter core (19) and first row of useless room (17) through fastening bolt (20) to first row of useless room (17) and second row of useless room (25) inside all is provided with filter core (19).
6. The system for continuous nitration of mesitylene in series with four kettles according to claim 1, wherein: the neutralization chamber (22), the water washing chamber (24) and the extraction organic phase chamber (26) are distributed in parallel, and the neutralization chamber (22), the water washing chamber (24) and the extraction organic phase chamber (26) are communicated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021520436.0U CN212882451U (en) | 2020-07-28 | 2020-07-28 | System for continuous nitration mesitylene of four cauldron series connections |
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| CN202021520436.0U CN212882451U (en) | 2020-07-28 | 2020-07-28 | System for continuous nitration mesitylene of four cauldron series connections |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230981A (en) * | 2021-06-07 | 2021-08-10 | 安庆市长虹化工有限公司 | Heterogeneous continuous reaction system |
| WO2022266940A1 (en) * | 2021-06-24 | 2022-12-29 | 鹏辰新材料科技股份有限公司 | Nitrification device for mesitylene production |
-
2020
- 2020-07-28 CN CN202021520436.0U patent/CN212882451U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230981A (en) * | 2021-06-07 | 2021-08-10 | 安庆市长虹化工有限公司 | Heterogeneous continuous reaction system |
| WO2022266940A1 (en) * | 2021-06-24 | 2022-12-29 | 鹏辰新材料科技股份有限公司 | Nitrification device for mesitylene production |
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