CN206494875U - One kind 4,4 ' di-2-ethylhexylphosphine oxides of production（The chloroaniline of 2,6 diethyl 3）Equipment - Google Patents
One kind 4,4 ' di-2-ethylhexylphosphine oxides of production（The chloroaniline of 2,6 diethyl 3）Equipment Download PDFInfo
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- CN206494875U CN206494875U CN201720150764.8U CN201720150764U CN206494875U CN 206494875 U CN206494875 U CN 206494875U CN 201720150764 U CN201720150764 U CN 201720150764U CN 206494875 U CN206494875 U CN 206494875U
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Abstract
It is used to produce 4,4 ' di-2-ethylhexylphosphine oxides the utility model discloses one kind（The chloroaniline of 2,6 diethyl 3）Equipment, including synthetic work section, neutralize washing active section, recrystallization granulation active section and Methanol Recovery active section；Synthetic work section, including several head tanks, by pipeline communication to synthesis reactor；Washing active section is neutralized, including neutralizes kettle, neutralizes and auxiliary tank is provided with kettle, rear is connected with neutralization buffer tank, washing kettle, secondary washing kettle, first in turn and washes surge tank, three washing kettles and the second washing surge tank；Recrystallization granulation active section, successively including connecting comminutor and mother liquor collecting tank respectively after drying kettle, dissolution kettle, filter, crystallization kettle and centrifuge, centrifuge；Methanol Recovery active section, including rectifying column, heat exchanger, the first condenser and methanol collecting tank after mother liquor collecting tank.The utility model process conditions controllability is high, strong operability, can efficiently, stably, high conversion, be produced at low cost.
Description
Technical field
The utility model is related to chemical products production equipment field, more particularly to one kind 4,4 '-methylene-bis-（2,6-
Diethyl -3- chloroanilines）（MCDEA）Production equipment.
Background technology
M-CDEA is MDA（4,4'- MDAs）The redundant organism of class, can be with TDI（Toluene di-isocyanate(TDI)）
The excellent PU elastomers of performed polymer compatibility processability.It is used in mixed way with corresponding MOCA, 740M etc., can make PU elasticity
Body performance is improved, and embodies superposition well.In technology methods, Yi Jiwei such as PU cast, spraying, RIM
In prepared by the products such as hole product, TPU, adhesive, coating agent, suffer from widely applying.This product is substantially nontoxic, is ratified by European Union
Occasion is contacted available for food and medicine.How to stablize, high conversion, low cost production MOCEA products, reach maximum economy
Change purpose, be urgently open question.
Utility model content
The utility model is mainly solving the technical problems that providing a kind of is used to producing 4,4 '-methylene-bis-（2,6- diethyls
Base -3- chloroanilines）Equipment.
In order to solve the above technical problems, the technical scheme that the utility model is used is：
There is provided a kind of is used to producing 4,4 '-methylene-bis-（2,6- diethyl -3- chloroanilines）Equipment, including synthesis work
Make section, neutralize washing active section, recrystallization granulation active section and Methanol Recovery active section；
Synthetic work section, including several the head tank that different material is housed, by pipeline communication to synthesis reactor；
It is described to neutralize washing active section, including kettle is neutralized, after the synthesis reactor, set and help on the neutralization kettle
Agent tank, the neutralization kettle rear be connected with turn neutralization buffer tank, washing kettle, secondary washing kettle, the first washing surge tank,
Three washing kettles and the second washing surge tank；
It is described recrystallization granulation active section, successively including positioned at described second washing surge tank after drying kettle, dissolution kettle,
Comminutor and mother liquor collecting tank are connected respectively after filter, crystallization kettle and centrifuge, the centrifuge；Connected on the drying kettle
There is vacuum dryer；
The Methanol Recovery active section, including rectifying column, heat exchanger, the first condenser after the mother liquor collecting tank
With methanol collecting tank, the heat exchanger is also connected with the methanol collecting tank.
In one preferred embodiment of the utility model, the head tank includes water pot, sulphuric acid tank, chloro- 2, the 6- diethyls of 3-
Base aniline tank and formaldehyde tank.
In one preferred embodiment of the utility model, the vacuum dryer includes being connected to the drying kettle in turn
The second condenser, collecting tank, surge tank and vavuum pump afterwards.
In one preferred embodiment of the utility model, Distributed Control System is installed in complete equipment.
The beneficial effects of the utility model are：The utility model one kind is used to produce 4,4 '-methylene-bis-（2,6- diethyls
Base -3- chloroanilines）Equipment, process conditions controllability is high, strong operability, can efficiently, stably, high conversion, with it is relatively low into
This production, can reclaim the materials such as methanol, water, and granulate raw material up to packing from raw material tank field using Distributed Control System
Full-automatic remote control is realized, the labor intensity in operating process is significantly reduced, environmental protection and safety is improved.
Brief description of the drawings
Fig. 1 is the structural representation of the preferred embodiment of the utility model one.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model
It can be easier to be readily appreciated by one skilled in the art with feature, so as to make protection domain of the present utility model apparent clear and definite
Define.
One kind is used to produce 4,4 '-methylene-bis-（2,6- diethyl -3- chloroanilines）Equipment, including synthetic work section,
Neutralize washing active section, recrystallization granulation active section and Methanol Recovery active section.
Synthetic work section, including several the head tank that different material is housed, by pipeline communication to synthesis reactor 2；Institute
Stating head tank includes water pot 101, sulphuric acid tank 102, the chloro- 2,6- diethylanilines tanks 103 of 3- and formaldehyde tank 104.The neutralization water
Wash active section, including neutralize kettle 3, after the synthesis reactor 2, be provided with auxiliary tank 105 on the neutralization kettle 2, it is described in
Neutralization buffer tank 4, washing kettle 5, the washing of secondary washing kettle 6, first surge tank 7, three water are connected with turn with the rear of kettle 3
Wash the washing surge tank 9 of kettle 8 and second；The recrystallization granulation active section, successively including after the described second washing surge tank 9
Drying kettle 10, dissolution kettle 11, filter 12, crystallization kettle 13 and centrifuge 14, comminutor is connected respectively after the centrifuge 14
With mother liquor collecting tank 15；Vacuum dryer is connected with the drying kettle 10, the vacuum dryer includes being sequentially connected
The second condenser 1001, collecting tank 1002, surge tank 1003 and vavuum pump 1004 after the drying kettle 10；The methanol is returned
Receive active section, including rectifying column 16, heat exchanger 17, the first condenser 18 and methanol collection after the mother liquor collecting tank 15
Tank 19, the heat exchanger 17 is also connected with the methanol collecting tank 19.
Distributed Control System is installed in complete equipment, using Distributed Control System by raw material from raw material tank field up to packaging
Full-automatic remote control is realized in granulation, is alleviated labor intensity, is improved production efficiency.
Relying on the reaction principle that is produced of the utility model is：
。
The course of work of the present utility model：
（1）Synthesis：Water, sulfuric acid, 3- chloro-2,6-diethyl anilines are put into synthesis reactor 2, are added dropwise with after nitrogen displacement
Addition reaction 3h is carried out under conditions of formaldehyde, control 80 ~ 100 DEG C of temperature in the kettle of synthesis, low whipping speed 85r/min；
（2）Neutralize, wash：The adding assistant in kettle 3 is neutralized, adjusts the pH value of material, is passed through in neutralization buffer tank 4, then
Pass sequentially through washing kettle 5, a secondary washing kettle 6 to be washed, be then passed through the first washing surge tank 7 heating water and boil
20min, then three washing surge tanks 9 of washing kettle 8, second are passed through, heating water boils 20min, stratification；
（3）Recrystallization, granulation：Material is passed through drying kettle 10 and is dried in vacuo, the vacuum dryer on drying kettle 10
Coordinate drying kettle 10 to be dried in vacuo material, and collect the water that evaporative condenser is obtained；Enter dissolution kettle 11 after material, add
Methanol carries out recrystallization decolouring, rear to be filtered into filter 12, enters back into three crystallization kettles being arranged in parallel 13 and crystallizes, afterwards quilt
The centrifuge dripping of centrifuge 14 is sent into, solid can be conveyed to comminutor granulation, and liquid is collected into mother liquor collecting tank 15；
（4）Methanol Recovery：Material in mother liquor collecting tank 15 is sent into the rectifying of rectifying column 16, from the upper collection of rectifying column 16
In methanol, feeding heat exchanger 17, it is passed through the first condenser 18 and condenses, received with the liquid methanol that is directly collected into heat exchanger 17
Collect in methanol collecting tank 19.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (4)
1. one kind is used to produce 4,4 '-methylene-bis-（2,6- diethyl -3- chloroanilines）Equipment, it is characterised in that including close
Into active section, neutralize washing active section, recrystallization granulation active section and Methanol Recovery active section；
Synthetic work section, including several the head tank that different material is housed, by pipeline communication to synthesis reactor；
It is described to neutralize washing active section, including kettle is neutralized, after the synthesis reactor, auxiliary agent is provided with the neutralization kettle
Tank, the neutralization kettle rear is connected with neutralization buffer tank, washing kettle, secondary washing kettle, the first washing surge tank, three in turn
Secondary washing kettle and the second washing surge tank；
The recrystallization granulation active section, successively including the drying kettle after the described second washing surge tank, dissolution kettle, filtering
Comminutor and mother liquor collecting tank are connected respectively after device, crystallization kettle and centrifuge, the centrifuge；It is connected with the drying kettle true
Empty drying equipment；
The Methanol Recovery active section, including rectifying column, heat exchanger, the first condenser and first after the mother liquor collecting tank
Alcohol collecting tank, the heat exchanger is also connected with the methanol collecting tank.
2. according to claim 1 be used to produce 4,4 '-methylene-bis-（2,6- diethyl -3- chloroanilines）Equipment, its
It is characterised by, the head tank includes water pot, sulphuric acid tank, 3- chloro-2,6-diethyl anilines tank and formaldehyde tank.
3. according to claim 1 be used to produce 4,4 '-methylene-bis-（2,6- diethyl -3- chloroanilines）Equipment, its
It is characterised by, the vacuum dryer includes being connected to the second condenser, collecting tank, surge tank after the drying kettle in turn
And vavuum pump.
4. according to claim 1 be used to produce 4,4 '-methylene-bis-（2,6- diethyl -3- chloroanilines）Equipment, its
It is characterised by, Distributed Control System is installed in complete equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150764.8U CN206494875U (en) | 2017-02-20 | 2017-02-20 | One kind 4,4 ' di-2-ethylhexylphosphine oxides of production（The chloroaniline of 2,6 diethyl 3）Equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150764.8U CN206494875U (en) | 2017-02-20 | 2017-02-20 | One kind 4,4 ' di-2-ethylhexylphosphine oxides of production（The chloroaniline of 2,6 diethyl 3）Equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206494875U true CN206494875U (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720150764.8U Active CN206494875U (en) | 2017-02-20 | 2017-02-20 | One kind 4,4 ' di-2-ethylhexylphosphine oxides of production（The chloroaniline of 2,6 diethyl 3）Equipment |
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| CN (1) | CN206494875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112029063A (en) * | 2020-09-07 | 2020-12-04 | 江苏湘园化工有限公司 | Liquid polyurethane curing agent composition and application method thereof |
-
2017
- 2017-02-20 CN CN201720150764.8U patent/CN206494875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112029063A (en) * | 2020-09-07 | 2020-12-04 | 江苏湘园化工有限公司 | Liquid polyurethane curing agent composition and application method thereof |
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