CN205188175U - Di n butyl phthalate plasticizer crude ester production system - Google Patents
Di n butyl phthalate plasticizer crude ester production system Download PDFInfo
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- CN205188175U CN205188175U CN201520955765.0U CN201520955765U CN205188175U CN 205188175 U CN205188175 U CN 205188175U CN 201520955765 U CN201520955765 U CN 201520955765U CN 205188175 U CN205188175 U CN 205188175U
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Abstract
The utility model relates to a plasticizer apparatus for producing, concretely relates to di n butyl phthalate plasticizer crude ester production system. The system includes the esterification reaction cauldron, and esterification reaction cauldron, esterification column, first condenser, alcohol -water separation jar, extraction jar, pure storage tank are consecutive, and pure storage tank still links to each other with the esterification column top, the esterification reaction cauldron is still consecutive with second condenser, buffer tank, second booster pump, first blender, first ester separation of water jar, second blender, second ester separation of water jar, third blender, third ester separation of water jar, crude ester jar, first ester separation of water jar links to each other with first buck jar, second ester separation of water jar links to each other with second buck jar, third ester separation of water jar links to each other with third buck jar, retrieve the water pitcher and link to each other respectively with first blender, second blender, third blender, establish alkali feeding device on the outlet line of recovery water pitcher. The utility model discloses the energy consumption is low, low in labor strength, and the reaction rate is fast, and product purity is high.
Description
Technical field
The utility model relates to a kind of plasticizer production device, is specifically related to the thick ester production system of a kind of Plasticized with Dibutyl Phthalate agent.
Background technology
Dibutyl phthalate (DBP) is that a kind of plasticizing efficiency is high, broad-spectrum softening agent product, and the main primary plasticizer being used as celluosic resin and polrvinyl chloride product, is specially adapted to nitrocellulose resin.Have excellent solvability, decomposability and tackiness, the flexibility of paint film and stability are also good.Compatible good with dyestuff, can be used for film, leatheroid and plastics.This product also can be used as the softening agent of natural rubber, tenderizer, can improve the rebound resilience of goods.
It is slow to there is speed of response in tradition DBP production system, the problems such as product purity is low, and technique manual operation is frequent, labour intensity large, bad environments.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of Plasticized with Dibutyl Phthalate agent thick ester production system, energy consumption is low, and labour intensity is low, and speed of response is fast, and product purity is high.
The utility model solves the technical scheme that its technical problem adopts:
The thick ester production system of Plasticized with Dibutyl Phthalate agent described in the utility model, comprise reaction kettle of the esterification, reaction kettle of the esterification, esterification column, the first condenser, alcohol-water separation tank, extractor, alcohol storage tank are connected successively, alcohol storage tank is also connected with esterification column top, establish the first topping-up pump between alcohol storage tank and esterification column, extractor is established warm air line; Alcohol-water separation tank is also connected with recovery water pot;
Reaction kettle of the esterification is also connected successively with the second condenser, surge tank, the second topping-up pump, the first mixing tank, the first ester water separation tank, the second mixing tank, the second ester water separation tank, the 3rd mixing tank, the 3rd ester water separation tank, thick ester tank;
First ester water separation tank is connected with the first alkali water tank; Second ester water separation tank is connected with the second alkali water tank; 3rd ester water separation tank is connected with the 3rd alkali water tank;
Reaction kettle of the esterification top is connected with opening for feed by feed valve;
Reclaim water pot to be connected respectively with the first mixing tank, the second mixing tank, the 3rd mixing tank, alkali cast feeder established by the outlet line of recovery water pot.
The second described alkali water tank is connected with the first mixing tank.
The 3rd described alkali water tank is connected with the second mixing tank.
Described reaction kettle of the esterification inside arranges inner coil pipe.
Described reaction kettle of the esterification inside arranges agitator.
Principle of work and process:
Be divided into esterification step and neutralization &washing operation:
Esterification step: raw material phthalic anhydride, propyl carbinol and solid acid catalyst are added in reaction kettle of the esterification by opening for feed, then closes feed valve.Under the effect that agitator stirs, use inner coil pipe heating, be progressively warming up to temperature of reaction and react, the ester that reaction generates enters surge tank after the second condenser cooling.
Enter after the first condenser cools after the gas phase evaporated in reaction kettle of the esterification enters that backflow alcohol that esterification column and tower top enter is reverse and contacts, enter alcohol-water separation tank and carry out alcohol aqueous phase separation, water saturation alcohol is from alcohol-water separation tank upper return to extractor, after abundant extraction, adopt the method for forced refluence, the alcohol being entered into alcohol storage tank by extractor gets back to gas-phase reverse that esterification column tower top and reaction kettle of the esterification evaporate to contacting after the first topping-up pump supercharging.In alcohol-water separation tank, isolated water enters recovery water pot.
Neutralization &washing operation: the ester in surge tank enters the first mixing tank after the second topping-up pump supercharging, reclaim water in water pot to add through alkali cast feeder and squeeze into the first mixing tank through volume pump after alkali and carry out first time neutralization reaction, reacting rear material overflow enters the first ester water separation tank and carries out ester, aqueous phase separation, ester overflows to the second mixing tank from top, and isolated water enters the first alkali water tank.Reclaim water in water pot to add through alkali cast feeder the ester squeezing into the second mixing tank and overflow to the second mixing tank through volume pump after alkali and carry out second time neutralization reaction, reacting rear material overflow to the second ester water separation tank carries out ester, aqueous phase separation, ester overflows to the 3rd mixing tank from top, isolated water enters the second alkali water tank.Reclaim water in water pot to squeeze into the 3rd mixing tank and overflow to the ester of the 3rd mixing tank through volume pump and carry out washed reaction, reacting rear material overflow carries out ester, aqueous phase separation to the 3rd ester water separation tank, and ester enters thick ester tank, and isolated water enters the 3rd alkali water tank.
Water in first alkali water tank enters wastewater treatment equipment and processes.
Water in second alkali water tank squeezes into the first mixing tank as first time neutralization reaction water.
Water in 3rd alkali water tank squeezes into the second mixing tank as second time neutralization reaction water.
After esterification completes, led in warm air to extractor process extraction agent by warm air line, extraction agent recycles.
The beneficial effect that the utility model has is:
(1) reaction kettle of the esterification adopts inner coil pipe heating, and the outer coil pipe eliminating traditional technology is frequent owing to colding and heat succeed each other, the shortcoming easily revealed.
(2) described system have employed recycle alcohol alcohol-water separation method, after extractor extraction, the water in recycle alcohol is extracted, avoid the water steamed to enter reaction kettle of the esterification again, accelerate speed of response, make every still speed of response accelerate 20%, energy expenditure reduces 15%.Extractor is established warm air line regenerate extraction agent, can reuse.
(3) neutralization &washing operation adopts the isolated recycle-water of esterification step, decreases the discharge of waste water.Buck isolated after second time neutralization reaction is used for first time neutralization reaction, water isolated after washed reaction is used for second time neutralization reaction, economizes on water further, reduce the discharge of waste water.Described system energy consumption is low, and labour intensity is low.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: 1, reaction kettle of the esterification; 2, esterification column; 3, the first condenser; 4, alcohol-water separation tank; 5, extractor; 6, alcohol storage tank; 7, the first topping-up pump; 8, opening for feed; 9, feed valve; 10, inner coil pipe; 11, agitator; 12, the second condenser; 13, surge tank; 14, warm air line; 15, water pot is reclaimed; 16, alkali cast feeder; 17, the second topping-up pump; 18, the first mixing tank; 19, the first ester water separation tank; 20, the second mixing tank; 21, the second ester water separation tank; 22, the 3rd mixing tank; 23, the 3rd ester water separation tank; 24, thick ester tank; 25, the first alkali water tank; 26, the second alkali water tank; 27, the 3rd alkali water tank.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, the thick ester production system of Plasticized with Dibutyl Phthalate agent described in the utility model, comprise reaction kettle of the esterification 1, reaction kettle of the esterification 1, esterification column 2, first condenser 3, alcohol-water separation tank 4, extractor 5, alcohol storage tank 6 are connected successively, alcohol storage tank 6 is also connected with esterification column 2 top, establish the first topping-up pump 7 between alcohol storage tank 6 and esterification column 2, extractor 5 is established warm air line 14; Alcohol-water separation tank 4 is also connected with recovery water pot 15;
Reaction kettle of the esterification 1 is also connected successively with the second condenser 12, surge tank 13, second topping-up pump 17, first mixing tank 18, first ester water separation tank 19, second mixing tank 20, second ester water separation tank 21, the 3rd mixing tank 22, the 3rd ester water separation tank 23, thick ester tank 24;
First ester water separation tank 19 is connected with the first alkali water tank 25; Second ester water separation tank 21 is connected with the second alkali water tank 26; 3rd ester water separation tank 23 is connected with the 3rd alkali water tank 27;
Reaction kettle of the esterification 1 top is connected with opening for feed 8 by feed valve 9;
Reclaim water pot 15 to be connected respectively with the first mixing tank 18, second mixing tank 20, the 3rd mixing tank 22, alkali cast feeder 16 established by the outlet line of recovery water pot 15.
The second described alkali water tank 26 is connected with the first mixing tank 18.
The 3rd described alkali water tank 27 is connected with the second mixing tank 20.
Described reaction kettle of the esterification 1 inside arranges inner coil pipe 10.
Described reaction kettle of the esterification 1 inside arranges agitator 11.
During work, be divided into esterification step and neutralization &washing operation:
Esterification step: add in reaction kettle of the esterification 1 by opening for feed 8 by raw material phthalic anhydride, propyl carbinol and solid acid catalyst, then closes feed valve 9.Under the effect that agitator 11 stirs, use inner coil pipe 10 to heat, be progressively warming up to temperature of reaction and react, the ester that reaction generates enters surge tank 13 after the second condenser 12 cools.
Enter after the first condenser 3 cools after the gas phase evaporated in reaction kettle of the esterification 1 enters that backflow alcohol that esterification column 2 and tower top enter is reverse and contacts, enter alcohol-water separation tank 4 and carry out alcohol aqueous phase separation, water saturation alcohol is from alcohol-water separation tank 4 upper return to extractor 5, after abundant extraction, adopt the method for forced refluence, the alcohol being entered into alcohol storage tank 6 by extractor 5 gets back to gas-phase reverse that esterification column 2 tower top and reaction kettle of the esterification 1 evaporate to contacting after the first topping-up pump 7 supercharging.In alcohol-water separation tank 4, isolated water enters and reclaims water pot 15.
Neutralization &washing operation: the ester in surge tank 13 enters the first mixing tank 18 after the second topping-up pump 17 supercharging, reclaim water in water pot 15 to add through alkali cast feeder 16 and squeeze into the first mixing tank 18 through volume pump after alkali and carry out first time neutralization reaction, reacting rear material overflow enters the first ester water separation tank 19 and carries out ester, aqueous phase separation, ester overflows to the second mixing tank 20 from top, isolated water enters the first alkali water tank 25.Reclaim water in water pot 15 to add through alkali cast feeder 16 and squeeze into the second mixing tank 20 through volume pump after alkali and carry out second time neutralization reaction with the ester of overflow to the second mixing tank 20, reacting rear material overflow to the second ester water separation tank 21 carries out ester, aqueous phase separation, ester overflows to the 3rd mixing tank 22 from top, isolated water enters the second alkali water tank 26.Reclaim water in water pot 15 to squeeze into the 3rd mixing tank 22 and overflow to the ester of the 3rd mixing tank 22 through volume pump and carry out washed reaction, reacting rear material overflow carries out ester, aqueous phase separation to the 3rd ester water separation tank 23, ester enters thick ester tank 24, and isolated water enters the 3rd alkali water tank 27.
Water in first alkali water tank 25 enters wastewater treatment equipment and processes.
Water in second alkali water tank 26 squeezes into the first mixing tank 18 as first time neutralization reaction water.
Water in 3rd alkali water tank 27 squeezes into the second mixing tank 20 as second time neutralization reaction water.
After esterification completes, lead to warm air by warm air line 14 and process extraction agent in extractor 5, extraction agent recycles.
Claims (5)
1. the thick ester production system of Plasticized with Dibutyl Phthalate agent, comprise reaction kettle of the esterification (1), it is characterized in that: reaction kettle of the esterification (1), esterification column (2), the first condenser (3), alcohol-water separation tank (4), extractor (5), alcohol storage tank (6) are connected successively, alcohol storage tank (6) is also connected with esterification column (2) top, establish the first topping-up pump (7) between alcohol storage tank (6) and esterification column (2), extractor (5) is established warm air line (14); Alcohol-water separation tank (4) is also connected with recovery water pot (15);
Reaction kettle of the esterification (1) is also connected successively with the second condenser (12), surge tank (13), the second topping-up pump (17), the first mixing tank (18), the first ester water separation tank (19), the second mixing tank (20), the second ester water separation tank (21), the 3rd mixing tank (22), the 3rd ester water separation tank (23), thick ester tank (24);
First ester water separation tank (19) is connected with the first alkali water tank (25); Second ester water separation tank (21) is connected with the second alkali water tank (26); 3rd ester water separation tank (23) is connected with the 3rd alkali water tank (27);
Reaction kettle of the esterification (1) top is connected with opening for feed (8) by feed valve (9);
Reclaim water pot (15) to be connected respectively with the first mixing tank (18), the second mixing tank (20), the 3rd mixing tank (22), alkali cast feeder (16) established by the outlet line of recovery water pot (15).
2. the thick ester production system of Plasticized with Dibutyl Phthalate agent according to claim 1, is characterized in that: described the second alkali water tank (26) is connected with the first mixing tank (18).
3. the thick ester production system of Plasticized with Dibutyl Phthalate agent according to claim 1, is characterized in that: the 3rd described alkali water tank (27) is connected with the second mixing tank (20).
4. the thick ester production system of Plasticized with Dibutyl Phthalate agent according to claim 1, is characterized in that: described reaction kettle of the esterification (1) inside arranges inner coil pipe (10).
5. the thick ester production system of Plasticized with Dibutyl Phthalate agent according to claim 1, is characterized in that: described reaction kettle of the esterification (1) inside arranges agitator (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955765.0U CN205188175U (en) | 2015-11-26 | 2015-11-26 | Di n butyl phthalate plasticizer crude ester production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955765.0U CN205188175U (en) | 2015-11-26 | 2015-11-26 | Di n butyl phthalate plasticizer crude ester production system |
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| CN205188175U true CN205188175U (en) | 2016-04-27 |
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| CN201520955765.0U Active CN205188175U (en) | 2015-11-26 | 2015-11-26 | Di n butyl phthalate plasticizer crude ester production system |
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