CN208003476U - A kind of paraphthaloyl chloride production raw material preheating device - Google Patents
A kind of paraphthaloyl chloride production raw material preheating device Download PDFInfo
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- CN208003476U CN208003476U CN201820243821.1U CN201820243821U CN208003476U CN 208003476 U CN208003476 U CN 208003476U CN 201820243821 U CN201820243821 U CN 201820243821U CN 208003476 U CN208003476 U CN 208003476U
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- acid chloride
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Abstract
The utility model is related to chemical equipment technical fields, more particularly to a kind of paraphthaloyl chloride production raw material preheating device, it include the crude acid chloride distillation still that is connected with the discharge port of reaction kettle, the steam (vapor) outlet of crude acid chloride distillation still is connected to the first condensing unit, the liquid outlet of crude acid chloride distillation still is connected to crude acid chloride rectifying column, the steam (vapor) outlet of crude acid chloride rectifying column is connected to the thermal medium inlet of the second condensing unit, the refrigerant inlet of second condensing unit is connected to thionyl chloride head tank, the feed inlet of the refrigerant exit connection reaction kettle of second condensing unit, the thermal medium outlet of second condensing unit is connected to acyl chlorides finished pot.Using the preheating device in the utility model, the high temperature acyl chlorides product that is gone out using rectifying heats reaction mass, has saved the energy, has reduced the consume to other energy.
Description
Technical field
The utility model is related to chemical equipment technical field more particularly to a kind of paraphthaloyl chloride production heating dresses
It sets.
Background technology
Paraphthaloyl chloride is using thionyl chloride and terephthalic acid (TPA) as raw material, under the effect of the catalyst by being obtained by the reaction
Crude acid chloride, due to containing excessive thionyl chloride in crude acid chloride, the acyl chlorides product of high-purity, needs acyl chlorides in order to obtain
Crude product is distilled, and thionyl chloride is steamed, and the temperature of the acyl chlorides fine work steamed using high temperature rectifying is passed through at 140 DEG C or so
Condensation obtains liquid acyl chlorides product；In actual production, thionyl chloride and terephthalic acid (TPA) need 70-90 DEG C of heating to carry out anti-
It answers, and it is discontinuous reaction to react, since the product temperature that rectifying goes out is very high, can be heated using its waste heat follow-up
Reaction raw materials.
Utility model content
Technical problem to be solved in the utility model is：In view of the deficiencies of the prior art, a kind of energy saving, drop is provided
The paraphthaloyl chloride production raw material preheating device of low enterprise's production cost.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of paraphthaloyl chloride production raw material preheating device includes the crude acid chloride that is connected with the discharge port of reaction kettle
The steam (vapor) outlet of distillation still, the crude acid chloride distillation still is connected to the first cooling device, the liquid of the crude acid chloride distillation still
Outlet crude acid chloride rectifying column, the steam (vapor) outlet of the crude acid chloride rectifying column be connected to the thermal medium of the second cooling device into
Mouthful, the refrigerant inlet of second cooling device is connected to thionyl chloride head tank, and the refrigerant exit of second cooling device connects
The thermal medium outlet of the feed inlet of logical reaction kettle, second cooling device is connected to acyl chlorides finished pot.
As an improvement technical solution, first cooling device and the second cooling device are shell and tube condensation
Device.
As an improvement technical solution, second cooling device pass through material-handling pump be connected to thionyl chloride raw material
Tank.
As an improvement technical solution, the distillation still includes autoclave body, and chuck, the kettle are equipped with outside the autoclave body
Body is internally provided with agitating shaft, and the agitating shaft is equipped with three layers of agitating device, and first layer agitating device is to be located at agitating shaft top
Stirrer paddle, second layer agitating device be located at stirring middle part fan-shaped stirring frame, third layer agitating device be located at stirring
The U-shaped stirring frame of axis bottom.
After using above-mentioned technical proposal, the utility model has the beneficial effects that：
Include the crude acid chloride that is connected with the discharge port of reaction kettle due to paraphthaloyl chloride production raw material preheating device
The steam (vapor) outlet of distillation still, crude acid chloride distillation still is connected to the first cooling device, the liquid outlet connection of crude acid chloride distillation still
Crude acid chloride rectifying column, the steam (vapor) outlet of crude acid chloride rectifying column are connected to the thermal medium inlet of the second cooling device, the second cooling
The refrigerant inlet of device is connected to thionyl chloride head tank, and the refrigerant exit of the second cooling device is connected to the feed inlet of reaction kettle, the
The thermal medium outlet of two cooling devices is connected to acyl chlorides finished pot.In actual production, reaction raw materials, warp are heated by steam first
Crude acid chloride obtained by the reaction is entered from reaction kettle inside distillation still by material-handling pump after a period of time, is steamed by distillation
Thionyl chloride through the first cooling device condensation after enter sulfoxide recycle storage tank；Fluid product in distillation still is conveyed by material
Pump enters in rectifying column, and the gaseous state acyl chlorides product steamed by rectifying enters the second cooling device, in thionyl chloride head tank
Thionyl chloride enters the second cooling device by material-handling pump, and temperature is obtained in 60-70 DEG C of thionyl chloride, acyl chlorides through heat exchange
It is collected finally by acyl chlorides finished pot.Therefore the heat generated using the acyl chlorides that distills out can be subsequent reactions material sulfoxide into
Material preheating, has saved the energy, has reduced enterprise's production cost.
Since distillation still includes autoclave body, chuck is equipped with outside autoclave body, autoclave body is internally provided with agitating shaft, and agitating shaft is equipped with three
Layer agitating device, first layer agitating device are the stirrer paddle for being located at agitating shaft top, and second layer agitating device is to be located at stirring
The fan-shaped stirring frame at middle part, third layer agitating device are the U-shaped stirring frame for being located at shaft bottom.In practical applications, pass through
The agitating device of this structure is stirred crude acid chloride, so that crude acid chloride is uniformly mixed in distillation still, is heated evenly, has
Help steaming for thionyl chloride.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of paraphthaloyl chloride production raw material preheating device of the utility model；
Fig. 2 is the structural schematic diagram of distillation still in Fig. 1；
Wherein, 1- distillation stills, 10- autoclave bodies, 11- chucks, 12- agitating shafts, 120- stirrer paddles, 121- sector stirring frames,
122-U shape stirring frames, the first cooling devices of 2-, 3- rectifying columns, the second cooling devices of 4-, 5- material-handling pumps, 6- thionyl chlorides
Head tank, 7- acyl chlorides finished pots, 8- reaction kettles.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of paraphthaloyl chloride production raw material preheating device, as shown in Figure 1, including being connected with the discharge port of reaction kettle
Logical crude acid chloride distillation still 1, the steam (vapor) outlet of crude acid chloride distillation still are connected to the first cooling device 2, crude acid chloride distillation still 1
Liquid outlet is connected to crude acid chloride rectifying column 3, and the steam (vapor) outlet of crude acid chloride rectifying column 3 is connected to heat Jie of the second cooling device 4
The refrigerant inlet of matter import, the second cooling device 4 is connected to thionyl chloride head tank 6, the second cooling device by material-handling pump 5
The feed inlet of 4 refrigerant exit connection reaction kettle 1, the thermal medium outlet connection acyl chlorides finished pot 7 of the second cooling device.Wherein
One cooling device 2 and the second cooling device 4 are shell and tube condenser.
In paraphthaloyl chloride production, reaction raw materials thionyl chloride and terephthalic acid (TPA) are put into reaction kettle by staff
Interior, using reaction temperature is steam heated to, crude acid chloride obtained by the reaction enters distillation still by material-handling pump, by 120
DEG C thionyl chloride steamed, which passes through to condense, enters recycling sulfoxide storage tank；The fluid product in distillation still enters rectifying column simultaneously
It is interior, enter the thermal medium inlet of the second cooling device from steam (vapor) outlet by the distillation acyl chlorides product of destilling tower, while utilizing object
Thionyl chloride is delivered to refrigerant inlet by material conveying pump, the thionyl chloride of 60-70 DEG C of temperature is obtained through heat exchange, into next batch
Reaction, acyl chlorides are collected finally by acyl chlorides finished pot.
As an improvement as shown in Fig. 2, distillation still 1 includes autoclave body 10,10 outside of autoclave body is equipped with chuck 11, autoclave body 10
It is internally provided with agitating shaft 12, agitating shaft 12 is equipped with three layers of agitating device, and first layer agitating device is to be located at agitating shaft top
Stirrer paddle 120, second layer agitating device are the fan-shaped stirring frame 121 for being located at stirring middle part, and third layer agitating device is to be located at
The U-shaped stirring frame 122 of shaft bottom, stirrer paddle, fan-shaped stirring frame, U-shaped stirring frame and agitating shaft are welded to connect.It is distilling
In the process, the crude acid chloride in distillation still is by stirrer paddle, the stirring of fan-shaped stirring frame and U-shaped stirring frame, in distillation still
Uniformly mixing.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (4)
1. a kind of paraphthaloyl chloride production raw material preheating device, it is characterised in that：Include being connected with the discharge port of reaction kettle
The steam (vapor) outlet of logical crude acid chloride distillation still, the crude acid chloride distillation still is connected to the first cooling device, and the crude acid chloride steams
The liquid outlet connection crude acid chloride rectifying column of kettle is evaporated, the steam (vapor) outlet of the crude acid chloride rectifying column is connected to the second cooling device
Thermal medium inlet, the refrigerant inlet of second cooling device is connected to thionyl chloride head tank, second cooling device
Refrigerant exit is connected to the feed inlet of reaction kettle, and the thermal medium outlet of second cooling device is connected to acyl chlorides finished pot.
2. a kind of paraphthaloyl chloride production raw material preheating device according to claim 1, it is characterised in that：Described
One cooling device and the second cooling device are shell and tube condenser.
3. a kind of paraphthaloyl chloride production raw material preheating device according to claim 1, it is characterised in that：Described
Two cooling devices are connected to thionyl chloride head tank by material-handling pump.
4. a kind of paraphthaloyl chloride production raw material preheating device according to claim 1, it is characterised in that：The steaming
It includes autoclave body to evaporate kettle, and chuck is equipped with outside the autoclave body, and the autoclave body is internally provided with agitating shaft, and the agitating shaft is equipped with three layers
Agitating device, first layer agitating device are the stirrer paddle for being located at agitating shaft top, and second layer agitating device is to be located in stirring
The fan-shaped stirring frame in portion, third layer agitating device are the U-shaped stirring frame for being located at shaft bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820243821.1U CN208003476U (en) | 2018-02-09 | 2018-02-09 | A kind of paraphthaloyl chloride production raw material preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820243821.1U CN208003476U (en) | 2018-02-09 | 2018-02-09 | A kind of paraphthaloyl chloride production raw material preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208003476U true CN208003476U (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820243821.1U Active CN208003476U (en) | 2018-02-09 | 2018-02-09 | A kind of paraphthaloyl chloride production raw material preheating device |
Country Status (1)
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| CN (1) | CN208003476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369377A (en) * | 2018-11-28 | 2019-02-22 | 山东凯盛新材料股份有限公司 | The preparation process of m-phthaloyl chloride |
| CN116272675A (en) * | 2023-02-20 | 2023-06-23 | 安徽瑞柏新材料有限公司 | Propyl acetate preparation facilities based on catalytic distillation method |
-
2018
- 2018-02-09 CN CN201820243821.1U patent/CN208003476U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369377A (en) * | 2018-11-28 | 2019-02-22 | 山东凯盛新材料股份有限公司 | The preparation process of m-phthaloyl chloride |
| CN116272675A (en) * | 2023-02-20 | 2023-06-23 | 安徽瑞柏新材料有限公司 | Propyl acetate preparation facilities based on catalytic distillation method |
| CN116272675B (en) * | 2023-02-20 | 2023-10-17 | 安徽瑞柏新材料有限公司 | Propyl acetate preparation facilities based on catalytic distillation method |
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