CN106117053A - A kind of plasticizer production esterification process units - Google Patents
A kind of plasticizer production esterification process units Download PDFInfo
- Publication number
- CN106117053A CN106117053A CN201610713744.7A CN201610713744A CN106117053A CN 106117053 A CN106117053 A CN 106117053A CN 201610713744 A CN201610713744 A CN 201610713744A CN 106117053 A CN106117053 A CN 106117053A
- Authority
- CN
- China
- Prior art keywords
- esterification
- alcohol
- storage tank
- reaction kettle
- water separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
Abstract
The invention discloses a kind of plasticizer production esterification process units, including the ester storage tank being sequentially connected, the second condenser, reaction kettle of the esterification, esterification column, the first condenser, alcohol-water separation tank, extractor, an alcohol storage tank, alcohol-water separation tank is also sequentially connected with secondary alcohol-water separation tank, water pot, and secondary alcohol-water separation tank is all connected with extractor with water pot；Alcohol storage tank is also connected with reaction kettle of the esterification top, is provided with booster pump between alcohol storage tank and reaction kettle of the esterification, is provided with valve between booster pump and reaction kettle of the esterification；Being provided with capacity induction apparatus in alcohol storage tank, capacity induction apparatus is connected with controller.Production capacity of the present invention is greatly improved, and decreases cost of investment, and device operation efficiency improves, and conversion rate of products raising, energy consumption reduction, utilization rate of equipment and installations and product yield improve and stable.
Description
Technical field
The present invention relates to a kind of chemical plant installations, be specifically related to a kind of plasticizer production esterification process units.
Background technology
In engineering plastics industry, commonly used to macromolecular material auxiliary agent, such as things such as plasticizer, heat stabilizer, modifying agent,
Adding these materials in plastics-production is processed, its macromolecular material pliability can be made to strengthen, steady quality, is engineering plastics
One of raw material indispensable in industry.Therefore, the development of the industry also fast development of plastic additive is prepared.Its
In, the preparation of a lot of auxiliary agents all can relate to esterification, and tradition carries out the process units of esterification and there is response speed slowly,
The problems such as side reaction is many, unstable product quality, and yield is little, and product purity is low, and technique manual operation is frequent, labor intensity
Greatly, bad environments.
Summary of the invention
The technical problem to be solved is to provide a kind of esterification device, decrease investment, reduce energy consumption,
Improve utilization rate of equipment and installations, improve product quality.
The present invention is achieved through the following technical solutions:
A kind of plasticizer production esterification process units, including reaction kettle of the esterification, it is characterised in that:
Ester storage tank, the second condenser, reaction kettle of the esterification, esterification column, the first condenser, alcohol-water separation tank, extractor, an alcohol storage
Tank is sequentially connected；
A described alcohol-water separation tank is also sequentially connected with secondary alcohol-water separation tank, water pot；
Described secondary alcohol-water separation tank is all connected with extractor with water pot；
Described alcohol storage tank is also connected with reaction kettle of the esterification top, is provided with booster pump, booster pump between alcohol storage tank and reaction kettle of the esterification
And it is provided with valve between reaction kettle of the esterification；
Being provided with capacity induction apparatus in described alcohol storage tank, capacity induction apparatus is connected with controller.
First by raw material acid and alcohol and catalyst addition reaction kettle of the esterification, under the effect of agitator stirring, use
Inner coil pipe heats, and is progressively warming up to reaction temperature and reacts, and after having reacted, the ester of generation is laggard through the second condenser cooling
Enter in ester storage tank and store.It is cold that the gas phase evaporated in reaction kettle of the esterification course of reaction enters the first condenser after entering esterification column
But, after condensation, become a liquid alcohol-water separation tank of entrance carry out alcohol aqueous phase separation；Wherein, water saturation alcohol is from an alcohol water
The upper return of knockout drum, to extractor, carries out second time alcohol water after then flowing into secondary alcohol-water separation tank for non-aqueous saturated alcohols
Separating, after separation, water saturation alcohol is also back to extractor, and in secondary alcohol-water separation tank, remaining liquid then flows in water pot.Water is satisfied
With alcohol after the fully extraction of extractor, the method using forced refluence, extractor enter in alcohol storage tank, extraction is surplus
Under liquid also flow in water pot store stay do it use.If the alcohol capacity storage in alcohol storage tank is to after certain value, by capacity sense
Answering device to transfer data to controller, controller just controls valve and opens and control booster pump work, makes the alcohol in alcohol storage tank flow back to
Further reacted in reaction kettle of the esterification, the alcohol of such multi-section extract and separate evaporation, and it passed back in reactor,
Ensure that alcohol sufficiently reacts with acid, it is to avoid alcohol is owing to volatilization makes the minimizing of amount in reactor and extracts insufficient bringing into
Excessive moisture enters into the problems such as the reaction caused in reactor is insufficient.
Described reaction kettle of the esterification is internally provided with agitator, and agitator can sufficiently mix dispersion to material,
Make esterification reaction process more abundant.
Inside described reaction kettle of the esterification, inner coil pipe is set, eliminates the outer coil pipe of traditional handicraft due to the frequency that colds and heat succeed each other
Shortcoming that is numerous, that easily reveal, it is achieved being heated of reaction kettle of the esterification inner homogeneous, it is to avoid the reaction that inequality of being heated causes is insufficient.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, one plasticizer production esterification process units of the present invention, uses repeatedly alcohol-water separation, extracts through extractor simultaneously
After taking, the water in recycle alcohol is extracted, it is to avoid the water steamed enters back into reaction kettle of the esterification, accelerates response speed；
2, one plasticizer production esterification process units of the present invention, device operation efficiency improves, and yield increases, and energy consumption drops
Low；
3, one plasticizer production esterification process units of the present invention, uses inner coil pipe heating, eliminates traditional handicraft
Outer coil pipe is frequent owing to colding and heat succeed each other, the shortcoming easily revealed.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram.
The parts title of labelling and correspondence in accompanying drawing:
1-reaction kettle of the esterification, 2-esterification column, 3-the first condenser, alcohol-water separation tank of 4-, 5-extractor, 6-alcohol storage tank, 7-
Secondary alcohol-water separation tank, 8-water pot, 9-booster pump, 10-valve, 11-capacity induction apparatus, 12-controller, 13-the second condenser,
14-ester storage tank.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As it can be seen, one plasticizer production esterification process units of the present invention, including the ester storage tank 14 being sequentially connected,
Two condensers 13, reaction kettle of the esterification 1, esterification column the 2, first condenser 3, alcohol-water separation tank 4, extractor 5, an alcohol storage tank 6,
Alcohol-water separation tank is also sequentially connected with secondary alcohol-water separation tank 7, water pot 8, secondary alcohol-water separation tank and water pot all with extractor
It is connected；Alcohol storage tank is also connected with reaction kettle of the esterification top, is provided with booster pump 9 between alcohol storage tank and reaction kettle of the esterification, booster pump with
Valve 10 it is provided with between reaction kettle of the esterification；Being provided with capacity induction apparatus 11 in alcohol storage tank, capacity induction apparatus is connected with controller 12.Will
Raw material acid and alcohol and catalyst are by adding in reaction kettle of the esterification, under the effect of agitator stirring, use inner coil pipe heating, by
Step is warming up to reaction temperature and reacts, and the ester that reaction generates enters ester storage tank after the second condenser cooling and stores.Esterification is anti-
Answer the gas phase evaporated in still after entering esterification column, to enter the first condenser cooling, enter an alcohol-water separation tank and carry out alcohol aqueous phase
Separate, water saturation alcohol from an alcohol-water separation tank upper return to extractor；Non-aqueous saturated alcohols then flows into secondary alcohol-water separation tank
After also flow into extractor.Fully after extraction, the method using forced refluence, extractor enter in alcohol storage tank.Secondary alcohol water
In knockout drum, isolated water enters water pot storage.If the alcohol capacity in alcohol storage tank reaches certain value, passed by capacity induction apparatus
Sending data to controller, controller controls valve and opens and make booster pump work, and makes alcohol flow back in reaction kettle of the esterification.
Embodiment 2
On the basis of above-described embodiment, described reaction kettle of the esterification is internally provided with agitator, makes esterification reaction process more
Fully.
Embodiment 3
On the basis of above-described embodiment, inside described reaction kettle of the esterification, inner coil pipe is set, eliminates the outer disk of traditional handicraft
Pipe is frequent owing to colding and heat succeed each other, the shortcoming easily revealed.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (3)
1. a plasticizer production esterification process units, including reaction kettle of the esterification (1), it is characterised in that:
Ester storage tank (14), the second condenser (13), reaction kettle of the esterification (1), esterification column (2), the first condenser (3), an alcohol water
Knockout drum (4), extractor (5), alcohol storage tank (6) are sequentially connected,
A described alcohol-water separation tank (4) is also sequentially connected with secondary alcohol-water separation tank (7), water pot (8),
Described secondary alcohol-water separation tank (7) is all connected with extractor (5) with water pot (8)；
Described alcohol storage tank (6) is also connected with reaction kettle of the esterification (1) top, is provided with increasing between alcohol storage tank (6) and reaction kettle of the esterification (1)
Press pump (9)；
Valve (10) it is provided with between described booster pump (9) and reaction kettle of the esterification (1)；
Being provided with capacity induction apparatus (11) in described alcohol storage tank (6), capacity induction apparatus (11) is connected with controller (12).
A kind of plasticizer production esterification process units the most according to claim 1, it is characterised in that: described ester
Change reactor (1) and be internally provided with agitator.
A kind of plasticizer production esterification process units the most according to claim 1, it is characterised in that: described ester
Change reactor (1) inside and inner coil pipe is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610713744.7A CN106117053A (en) | 2016-08-24 | 2016-08-24 | A kind of plasticizer production esterification process units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610713744.7A CN106117053A (en) | 2016-08-24 | 2016-08-24 | A kind of plasticizer production esterification process units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106117053A true CN106117053A (en) | 2016-11-16 |
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ID=57275127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610713744.7A Pending CN106117053A (en) | 2016-08-24 | 2016-08-24 | A kind of plasticizer production esterification process units |
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| CN (1) | CN106117053A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408330A (en) * | 2020-04-23 | 2020-07-14 | 山东润泽能源科技有限公司 | Ester exchange equipment and method for producing DOTP (dioctyl phthalate) by PET (polyethylene terephthalate) |
-
2016
- 2016-08-24 CN CN201610713744.7A patent/CN106117053A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408330A (en) * | 2020-04-23 | 2020-07-14 | 山东润泽能源科技有限公司 | Ester exchange equipment and method for producing DOTP (dioctyl phthalate) by PET (polyethylene terephthalate) |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
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| RJ01 | Rejection of invention patent application after publication |