CN208422240U - Benzamide production line instructional device - Google Patents
Benzamide production line instructional device Download PDFInfo
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- CN208422240U CN208422240U CN201721573507.1U CN201721573507U CN208422240U CN 208422240 U CN208422240 U CN 208422240U CN 201721573507 U CN201721573507 U CN 201721573507U CN 208422240 U CN208422240 U CN 208422240U
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- tank
- feed inlet
- production line
- tower
- mother liquor
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- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 52
- 239000012452 mother liquor Substances 0.000 claims abstract description 35
- 238000002425 crystallisation Methods 0.000 claims abstract description 34
- 230000008025 crystallization Effects 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000007670 refining Methods 0.000 claims abstract description 17
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 13
- 150000001263 acyl chlorides Chemical class 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 27
- 238000010992 reflux Methods 0.000 claims description 24
- 238000004821 distillation Methods 0.000 claims description 22
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 235000019441 ethanol Nutrition 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000004064 recycling Methods 0.000 claims description 10
- 238000001291 vacuum drying Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 230000003472 neutralizing effect Effects 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 238000010977 unit operation Methods 0.000 abstract description 5
- 238000003889 chemical engineering Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 229960004756 ethanol Drugs 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 239000000908 ammonium hydroxide Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- ONIKNECPXCLUHT-UHFFFAOYSA-N 2-chlorobenzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1Cl ONIKNECPXCLUHT-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- PFUQSACCWFVIBW-UHFFFAOYSA-N [C].C1=CC=CC=C1 Chemical compound [C].C1=CC=CC=C1 PFUQSACCWFVIBW-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000066 reactive distillation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides a kind of benzamide production line instructional device, it includes reaction system and refining system；The reaction system includes acyl chlorides storage tank, tank used for storing ammonia, reaction kettle, centrifuge and the first mother liquor tank, the discharge port of the acyl chlorides storage tank and the tank used for storing ammonia is connected with the feed inlet of the reaction kettle respectively, the discharge port of the reaction kettle is connected with the centrifuge, the centrifuge liquid outlet is connected with first mother liquor tank, and the discharge port of first mother liquor tank is connected with the feed inlet of the reaction kettle；The refining system includes crystallization kettle, the flame filter press being connected with the crystallization kettle discharge port, the solvent tank being connected with the crystallization kettle feed inlet, the second mother liquor tank being connected with the flame filter press liquid outlet.The solid outlet of the centrifuge is connected with the crystallization kettle feed inlet.Benzamide production line instructional device design is reasonable, easy to operate, and operator can be made to fully understand various chemical engineering unit operations.
Description
Technical field
The utility model belongs to chemical industry instructional device field, and in particular to a kind of benzamide production line instructional device.
Background technique
Benzamide is a kind of common organic synthesis intermediate, is in colorless plate crystal under room temperature, is dissolved in ethyl alcohol and heat
Water, neutral, the property with general amide, hydrolysis generates benzoic acid and ammonia.It can be reacted and be made with ammonia with chlorobenzoyl chloride.Benzoyl
The synthesis technology of amine covers a variety of chemical industry operation units and unit mode of operation, therefore, develops a kind of benzamide production line
Practice-training teaching of the instructional device for professional colleges and institution of higher learning has important practical significance.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of benzamide production line teaching dress
It sets.
To achieve the goals above, the technical scheme adopted by the utility model is
A kind of benzamide production line instructional device, it includes reaction system and refining system；
The reaction system includes acyl chlorides storage tank, tank used for storing ammonia, reaction kettle, centrifuge and the first mother liquor tank, the acyl chlorides
The discharge port of storage tank and the tank used for storing ammonia is connected with the feed inlet of the reaction kettle respectively, the discharge port of the reaction kettle with
The centrifuge is connected, and the centrifuge liquid outlet is connected with first mother liquor tank, the discharging of first mother liquor tank
Mouth is connected with the feed inlet of the reaction kettle；
The refining system includes crystallization kettle, the flame filter press being connected with the crystallization kettle discharge port and the knot
Solvent tank that brilliant kettle feed inlet is connected, the second mother liquor tank being connected with the flame filter press liquid outlet；The centrifuge
Solid outlet be connected with the crystallization kettle feed inlet.
Based on above-mentioned, the reaction system further include the rectifying column being connect with the reaction kettle and absorption tower, with the essence
First condenser of fractional distillation column connection, the first suction for condensing storage tank, being connect with the absorption tower being connect with first condenser
Receive liquid storage tank, respectively with first mother liquor tank and the neutralizing tank for absorbing liquid storage tank and being connected, described first condenses storage tank
Liquid outlet be connected with the feed inlet of the reaction kettle；Wherein, first condenser is double-tube heat exchanger.
Based on above-mentioned, the refining system further includes the second condenser being connected with the crystallization kettle feed inlet and institute
State the second condensation storage tank of the second condenser connection, the feed inlet phase of the liquid outlet and the crystallization kettle of the second condensation storage tank
Connection；Wherein, second condenser is tubular heat exchanger.
Based on above-mentioned, the outer wall of the reaction kettle and the crystallization kettle is equipped with heating mantle, the reaction kettle and the knot
The inside of brilliant kettle is equipped with agitating paddle and cooling coil；Wherein, the heating mantle carries out the reaction kettle and the crystallization kettle
The diabatic process of heating is serpentine coil similar to jacket heat-exchanger, the cooling coil, and diabatic process is similar to coil heat exchanger.
Based on above-mentioned, the refining system further include sieve plate distillation column, positioned at the sieve plate distillation column bottom reboiler,
The tower bottom heat friendship being connected with the reboiler, the tower top heat being connected with the sieve plate distillation column top are handed over and the tower top
The extract liquor that heat hands over the vacuum buffer tank that is connected and tower top fractionator, is connected with the side feed inlet of the sieve plate distillation column
Tank, the vacuum pump being connected with the vacuum buffer tank, the first reflux pump being connected with the tower top fractionator, described first
The liquid outlet of reflux pump is connected with the condensing water inlet that the tower bottom heat is handed over, the condensation-water drain that the tower bottom heat is handed over it is described
The reflux inlet of sieve plate distillation column is connected, and the condensate outlet that the tower bottom heat is handed over is connected with bottom product tank；Described second
Mother liquor tank is connected with the reboiler；Preferably, it includes three concatenated tubular heat exchangers, the tower top that the tower bottom heat, which is handed over,
It is tubular heat exchanger that heat, which is handed over,.
Based on above-mentioned, the condensing water inlet that second mother liquor tank is also handed over the tower top heat is connected, the tower top heat
The condensation-water drain of friendship is connected with the feed inlet of the sieve plate distillation column.
Based on above-mentioned, the tower top fractionator is also connected with an overhead product tank, the tower top fractionator and the tower
Fraction cooler is equipped between the products pot of top.
Based on above-mentioned, the refining system further include stuffing rectification column, be connected with the filling extract rectification column overhead
Three condensers, the return tank being connected with the third condenser, the second reflux pump being connected with the return tank, with it is described
The extract liquor recycling can that stuffing rectification column tower reactor is connected, second reflux pump are connected with the refluxing opening of the stuffing rectification column
Connect, the bottom product tank is connected with the tower reactor feed inlet of the stuffing rectification column, second reflux pump also with an ethyl alcohol
Recycling can is connected；Wherein, the third condenser is plate heat exchanger.
Based on above-mentioned, which further includes vacuum drying system, the vacuum drying system
It is connected with the solid outlet of the flame filter press.
The utility model has substantive features and progress compared with the prior art, specifically, the utility model have with
Lower advantage:
Benzamide production line instructional device provided by the utility model using the production technology of benzamide as carrier, including
Fluid conveying, ammoxidation, tail gas absorption, neutralisation treatment, recrystallization, centrifugal filtration, sieve plate rectifying, filling extract rectification, heat transfer
It can be fully understood by the benzamide production line instructional device various with a variety of chemical engineering unit operations, experimenters such as dryings
Chemical engineering unit operation；Moreover, a variety of performances lists are presented in similar chemical engineering unit operation in the benzamide production line instructional device
Atom operation form, such as diabatic process are embodied in sleeve heat exchange, tubulation heat exchange, jacket for heat exchange, coiled pipe heat exchange and board-like change
Heat, filtering have centrifugal filtration and plate-frame filtering, and rectifying can both realize sieve plate rectifying, filling extract rectification and extracting rectifying, can also realize
Curriculum building may be implemented in atmospheric distillation and rectification under vacuum, more close to production real condition, operator can be made to fully understand
Various operation process in Chemical Manufacture, meanwhile, which includes that raw material storage tank, collet heating are anti-
Answer kettle, absorption tower, rectifying column, neutralize kettle, pipe bundle condenser, plate heat exchanger, double-tube heat exchanger, centrifuge, flame filter press,
The devices such as raw material pump, vacuum pump, sieve plate distillation column and stuffing rectification column are familiar with various chemical industry suitable for beginner academics and students and are set
Standby and device operation, further, which also relates between each chemical industry operation unit
Continuous operation and intermittently operated, can make experimenter further understand the difference and general character of intermittently operated and continuous operation, into
One step understands the various unit operations of chemical industry；Moreover, not only to recycling design and following in the benzamide production line instructional device
Ring has also fully taken into account the thermal energy of condensing heat-exchange using devising a series of process flow, be used for rectifying preheat into
Row Waste Heat Reuse more meets the energy-efficient requirement of Modern Green.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of benzamide production line instructional device in the utility model.
Fig. 2 is the structural schematic diagram of sieve plate distillation column described in the utility model.
Fig. 3 is the structural schematic diagram of stuffing rectification column described in the utility model.
In figure: 1. acyl chlorides storage tanks；2. tank used for storing ammonia；3. reaction kettle；4. centrifuge；5. the first mother liquor tank；6. crystallization kettle；7.
Flame filter press；8. solvent tank；9. the second mother liquor tank；10. rectifying column；11. absorption tower；12. the first condenser；13. first is cold
Solidifying storage tank；14. absorbing liquid storage tank；15. neutralizing tank；16. the second condenser；17. the second condensation storage tank；18. sieve plate distillation column；
19. reboiler；20. tower bottom heat is handed over；21. tower top heat is handed over；22. vacuum buffer tank；23. tower top fractionator；24. vacuum pump；25. the
One reflux pump；26. bottom product tank；27. overhead product tank；28. fraction cooler；29. extracting flow container；30. stuffing rectification column；
31. third condenser；32. return tank；33. the second reflux pump；34. extract liquor recycling can；35. ethyl alcohol recycling can.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, a kind of benzamide production line instructional device, it includes reaction system and purification system
System；The reaction system includes acyl chlorides storage tank 1, tank used for storing ammonia 2, reaction kettle 3, centrifuge 4 and the first mother liquor tank 5, the acyl chlorides
The discharge port of storage tank 1 and the tank used for storing ammonia 2 is connected with the feed inlet of the reaction kettle 3 respectively, the discharging of the reaction kettle 3
Mouth is connected with the centrifuge 4, and 4 liquid outlet of centrifuge is connected with first mother liquor tank 5, first mother liquor tank
5 discharge port is connected with the feed inlet of the reaction kettle 3；It carries out reacting in reaction kettle 3 in use, ammonium hydroxide and acyl chlorides enter
To benzamide crystal and the first mother liquor, benzamide crystal and the first mother liquor, which enter in centrifuge 4, to be separated by solid-liquid separation, benzene first
Amide enters refining system, and the first mother liquor can be reentered in reaction kettle 3 into the first mother liquor tank 5 and be recycled.
The refining system include crystallization kettle 6, the flame filter press 7 being connected with 6 discharge port of crystallization kettle, with it is described
Solvent tank 8 that 6 feed inlet of crystallization kettle is connected, the second mother liquor tank 9 being connected with 7 liquid outlet of flame filter press；It is described
The solid outlet of centrifuge 4 is connected with 6 feed inlet of crystallization kettle, and ethyl alcohol enters crystallization kettle 6, benzamide from solvent tank 8
It is recrystallized into crystallization kettle 6 and ethyl alcohol, flame filter press 7 is entered after recrystallization and is separated by solid-liquid separation.
Further, the reaction system further include the rectifying column 10 being connect with the reaction kettle 3 and absorption tower 11, with it is described
First condenser 12 of the connection of rectifying column 10, the first condensation storage tank 13 being connect with first condenser 12 and the absorption
The absorption liquid storage tank 14 of the connection of tower 11, the neutralizing tank being connected respectively with first mother liquor tank 5 and the absorption liquid storage tank 14
15, the liquid outlet of the first condensation storage tank 13 is connected with the feed inlet of the reaction kettle 3.Ammonium hydroxide and acyl chloride reaction are heat release
Reaction, ammonium hydroxide volatilize to form ammonia, and ammonia, which enters to absorb in absorption tower 11, re-forms ammonium hydroxide, while volatilization gas enters first
It carries out condensation in condenser 12 to again flow into reaction kettle 3, the main component of the first mother liquor is excessive in benzene carbon amide and reaction
Ammonium hydroxide, wherein mother liquor a part enter reaction kettle carry out secondary response, a part enter neutralizing tank 15 in, acetic acid is added
It is discharged after neutralization reaction.
Further, the refining system further includes the second condenser 16 being connected with 6 feed inlet of crystallization kettle and institute
State the second condensation storage tank 17 of the second condenser 16 connection, the liquid outlet and the crystallization kettle 6 of the second condensation storage tank 17
Feed inlet is connected.Benzamide made from the reaction system is recrystallized using ethyl alcohol as solvent, ethyl alcohol is volatized into
It is condensed in second condenser 16, then flows into crystallization kettle 6 and utilize again.
Further, the outer wall of the reaction kettle 3 and the crystallization kettle 6 is equipped with heating mantle, the reaction kettle 3 and the knot
The inside of brilliant kettle 6 is equipped with agitating paddle and cooling coil, to heat to reaction kettle 3 and crystallization kettle 6, or exists when needed
The inner cavity of reaction kettle 3 and crystallization kettle 6 is cooled down.
Further, as shown in Fig. 2, the refining system further includes sieve plate distillation column 18, is located at the sieve plate distillation column 18
The reboiler 19 of bottom, the tower bottom heat being connected with the reboiler 19 hand over 20, be connected at the top of the sieve plate distillation column 18
Tower top heat hand over 21,21 vacuum buffer tanks 22 that are connected and tower top fractionator 23 handed over the tower top heat, is smart with the sieve plate
Evaporate extraction flow container 29 that the side feed inlet of tower 18 is connected, the vacuum pump 24 that is connected with the vacuum buffer tank 22 and institute
The first reflux pump 25 that tower top fractionator 23 is connected is stated, the liquid outlet of first reflux pump 25 and the tower bottom heat hand over 20
Condensing water inlet is connected, and the tower bottom heat hands over 20 condensation-water drain to be connected with the reflux inlet of the sieve plate distillation column 18
It connects, hands over 20 to carry out heat exchange so that withdrawing fluid enters tower bottom heat, make full use of thermal energy；The tower bottom heat hands over 20 condensate liquid to go out
Mouth is connected with bottom product tank 26；Second mother liquor tank 9 is connected with the reboiler 19.Ethyl alcohol in second mother liquor tank 9
Mixed solution, which enters, carries out normal pressure or rectification under vacuum separating alcohol in sieve plate distillation column 18, which can enter in crystallization kettle 6
Re-start recrystallization.
Specifically, it is condensing unit that the tower bottom heat friendship 20 and the tower top heat, which hand over 21, plays condensation.
Further, second mother liquor tank 9 also hands over 21 condensing water inlet to be connected with the tower top heat, the tower top heat
21 condensation-water drain is handed over to be connected with the feed inlet of the sieve plate distillation column 18, so that the second mother liquor tank 9 is before carrying out rectifying
It first hands in 21 and is preheated in tower top heat.
Further, the tower top fractionator 23 is also connected with an overhead product tank 27, so as in tower top fractionator 23
Liquid flows into overhead product tank 27 or the first reflux pump 25 flows back, and sets between the tower top fractionator 23 and overhead product tank 27
There is fraction cooler 28, the ethanol solution in overhead product tank 27, which can be again introduced into crystallization kettle 6, to be recrystallized.
Further, as shown in figure 3, the refining system further includes stuffing rectification column 30 and 30 tower of stuffing rectification column
It pushes up the third condenser 31 being connected, the return tank 32 being connected with the third condenser 31, be connected with the return tank 32
The second reflux pump 33 connect, the extract liquor recycling can 34 being connected with 30 tower reactor of stuffing rectification column, second reflux pump
33 are connected with the refluxing opening of the stuffing rectification column 30, the tower reactor of the bottom product tank 26 and the stuffing rectification column 30 into
Material mouth is connected, and carries out rectifying again to obtain the liquid in bottom product tank 26 after rectifying, second reflux pump 33 is also
It is connected with ethyl alcohol recycling can 35, so that 30 overhead condensation liquid of stuffing rectification column flows back or flows into ethyl alcohol recycling can 35.It needs
Illustrate, the benzamide production line instructional device can be not only used for benzamide production teaching, can also be by making
The experiment of ethyl acetate and dehydrated alcohol is prepared for other teaching experiments such as reactive distillation with its equipment component.
Preferably, first condenser 12 is double-tube heat exchanger；Second condenser 16 is tubular heat exchanger；It is described
Heating mantle is to the reaction kettle 3 jacket heat-exchanger similar with the diabatic process that the crystallization kettle 6 is heated, the cooling coil
For serpentine coil, diabatic process is similar to coil heat exchanger；It includes three concatenated tubular heat exchangers, institute that the tower bottom heat, which hands over 20,
Stating tower top heat and handing over 21 is tubular heat exchanger；The third condenser 31 is plate heat exchanger, and the application of a variety of heat exchange modes makes old
Teacher and student fully understand various forms of diabatic processes.
Further, which further includes vacuum drying system, the vacuum drying system with
The solid outlet of the flame filter press 7 is connected, to be recrystallized to give benzamide into the vacuum drying system
It is dried, obtains benzamide finished product, specifically, conventional vacuum oven, vacuum can be selected in the vacuum drying system
Drying machine or other vacuum dryers.
Further, each device multi-pass piping connects in the benzamide production line instructional device, root on the pipeline
According to needing to be arranged several valves, will pass through the on-off control flow direction of each valve.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (9)
1. a kind of benzamide production line instructional device, it is characterised in that: it includes reaction system and refining system；
The reaction system includes acyl chlorides storage tank, tank used for storing ammonia, reaction kettle, centrifuge and the first mother liquor tank, the acyl chlorides storage tank
Be connected respectively with the feed inlet of the reaction kettle with the discharge port of the tank used for storing ammonia, the discharge port of the reaction kettle with it is described
Centrifuge is connected, and the centrifuge liquid outlet is connected with first mother liquor tank, the discharge port of first mother liquor tank with
The feed inlet of the reaction kettle is connected；
The refining system includes crystallization kettle, the flame filter press being connected with the crystallization kettle discharge port and the crystallization kettle
Solvent tank that feed inlet is connected, the second mother liquor tank being connected with the flame filter press liquid outlet；The centrifuge is consolidated
Body outlet is connected with the crystallization kettle feed inlet.
2. benzamide production line instructional device according to claim 1, it is characterised in that: the reaction system further includes
The rectifying column being connect with the reaction kettle and absorption tower, the first condenser being connect with the rectifying column, with first condensation
First condensation storage tank of device connection, the absorption liquid storage tank being connect with the absorption tower, respectively with first mother liquor tank and described
The neutralizing tank that liquid storage tank is connected is absorbed, the liquid outlet of the first condensation storage tank is connected with the feed inlet of the reaction kettle.
3. benzamide production line instructional device according to claim 1 or 2, it is characterised in that: the refining system is also
Including be connected with the crystallization kettle feed inlet the second condenser, connect with second condenser second condensation storage tank,
The liquid outlet of the second condensation storage tank is connected with the feed inlet of the crystallization kettle.
4. benzamide production line instructional device according to claim 3, it is characterised in that: the reaction kettle and the knot
The outer wall of brilliant kettle is equipped with heating mantle, and the inside of the reaction kettle and the crystallization kettle is equipped with agitating paddle and cooling coil.
5. benzamide production line instructional device according to claim 1, it is characterised in that: the refining system further includes
Sieve plate distillation column, the reboiler positioned at the sieve plate distillation column bottom, the tower bottom heat that is connected with the reboiler hands over, with it is described
The tower top heat being connected at the top of sieve plate distillation column hands over, is connected with tower top heat friendship vacuum buffer tank and tower top fractionator,
The extraction flow container that is connected with the side feed inlet of the sieve plate distillation column, the vacuum pump being connected with the vacuum buffer tank,
The condensation that the first reflux pump being connected with the tower top fractionator, the liquid outlet of first reflux pump and the tower bottom heat are handed over
Water inlet is connected, and the condensation-water drain that the tower bottom heat is handed over is connected with the reflux inlet of the sieve plate distillation column, the tower
The condensate outlet that bottom heat is handed over is connected with bottom product tank；Second mother liquor tank is connected with the reboiler.
6. benzamide production line instructional device according to claim 5, it is characterised in that: second mother liquor tank also with
The condensing water inlet that the tower top heat is handed over is connected, the charging of condensation-water drain and the sieve plate distillation column that the tower top heat is handed over
Mouth is connected.
7. benzamide production line instructional device according to claim 5 or 6, it is characterised in that: the tower top fractionator
Also it is connected with an overhead product tank, fraction cooler is equipped between the tower top fractionator and the overhead product tank.
8. benzamide production line instructional device according to claim 5, it is characterised in that: the refining system further includes
Stuffing rectification column, the third condenser being connected with the filling extract rectification column overhead, time being connected with the third condenser
Stream tank, the second reflux pump being connected with the return tank, the extract liquor recycling being connected with the stuffing rectification column tower reactor,
Second reflux pump is connected with the refluxing opening of the stuffing rectification column, the bottom product tank and the stuffing rectification column
Tower reactor feed inlet is connected, and second reflux pump is also connected with an ethyl alcohol recycling can.
9. benzamide production line instructional device according to claim 1, it is characterised in that: it further includes vacuum drying system
System, the vacuum drying system are connected with the solid outlet of the flame filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573507.1U CN208422240U (en) | 2017-11-22 | 2017-11-22 | Benzamide production line instructional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573507.1U CN208422240U (en) | 2017-11-22 | 2017-11-22 | Benzamide production line instructional device |
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| Publication Number | Publication Date |
|---|---|
| CN208422240U true CN208422240U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721573507.1U Expired - Fee Related CN208422240U (en) | 2017-11-22 | 2017-11-22 | Benzamide production line instructional device |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862974A (en) * | 2017-11-22 | 2018-03-30 | 河南莱帕克化工设备制造有限公司 | Benzamide production line instructional device |
-
2017
- 2017-11-22 CN CN201721573507.1U patent/CN208422240U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862974A (en) * | 2017-11-22 | 2018-03-30 | 河南莱帕克化工设备制造有限公司 | Benzamide production line instructional device |
| CN107862974B (en) * | 2017-11-22 | 2023-11-24 | 河南莱帕克化工设备制造有限公司 | Benzamide production line teaching device |
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Granted publication date: 20190122 |