CN202447074U - Reactor for ester exchanging - Google Patents
Reactor for ester exchanging Download PDFInfo
- Publication number
- CN202447074U CN202447074U CN201220062080XU CN201220062080U CN202447074U CN 202447074 U CN202447074 U CN 202447074U CN 201220062080X U CN201220062080X U CN 201220062080XU CN 201220062080 U CN201220062080 U CN 201220062080U CN 202447074 U CN202447074 U CN 202447074U
- Authority
- CN
- China
- Prior art keywords
- ester interchange
- interchange vessel
- ester
- output
- reactor
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a reactor for ester exchanging. The reactor comprises a first ester exchanging kettle and is characterized in that the first ester exchanging kettle is connected with a rectifying tower through a first gas phase pipe, the first ester exchanging kettle is externally connected with a first reboiler, the rectifying tower is connected with a condenser through a second gas phase pipe, the condenser is connected with the rectifying tower through a second return pipe, and the output end at the bottom of the rectifying tower is connected with the first ester exchanging kettle through a first return pipe. The reactor for ester exchanging adopts an external circulating heating mode to improve heat exchange effect and accelerates out-of-system discharging of substances with low boiling points. The adopted ester exchange kettle has no jackets or stirring so that investment is low. By means of double comparison in experiment and production, the reactor for ester exchanging has the obvious advantages of being fast in reaction, high in yield , small in investment, low in energy consumption and the like compared with the traditional reactors, and a single reactor is large in capacity.
Description
Technical field
The utility model relates to chemical field, relates in particular to a kind of reactor that is used for ester exchange, can be used for the ester exchange reaction of binary acid fatty ester.
Background technology
Ester exchange reaction is an ester and pure under the effect of catalyst, generates the chemical reaction of new ester and alcohol.This reaction is reversible reaction, thereby can the new alcohol that generate discharge from the ester exchange system fast, is the key that improves reaction speed and yield.And the ester exchange reaction device that traditional chuck band stirs, the new alcohol of generation is difficult for discharging reactant liquor, thus reaction speed is slow, and side reaction is many.In addition, when reactor volume expansion, the transesterification reactor that traditional chuck band stirs, its unit volume material heat transfer area dwindles, and makes reaction speed sharply descend.
The utility model content
The purpose of the utility model is to provide a kind of novel reactor that is used for ester exchange, improves the ester exchange reaction effect.
To achieve these goals; The technical scheme of the utility model is following: a kind of reactor that is used for ester exchange, comprise first ester interchange vessel, and it is characterized in that first ester interchange vessel is connected with rectifying column through the first gas phase pipe; External first reboiler of first ester interchange vessel; Rectifying column is connected with condenser through the second gas phase pipe, and condenser is connected with rectifying column through second return duct, and the rectifier bottoms output is connected with first ester interchange vessel through first return duct.Second return duct is provided with the low boilers discharge pipe, and the low boilers discharge pipe is provided with control valve.The first ester interchange vessel top is provided with the raw material input and first output; Top is provided with the first input end and second input; The bottom is provided with second output, and first output of first ester interchange vessel is connected with the first gas phase pipe, and first return duct is connected with the first input end of first ester interchange vessel; First ester interchange vessel, second output is connected with the input of second reboiler through first tubing pump, and the output of reboiler is connected with second input of first ester interchange vessel.First ester interchange vessel, second input end is provided with shower nozzle.The rectifier bottoms output connects back rectifying column again through behind the tower bottom reboiler.According to an embodiment of the utility model, this reactor also comprises second ester interchange vessel, and second ester interchange vessel is connected with first ester interchange vessel, and second ester interchange vessel also is connected with rectifying column.The bottom of this first ester interchange vessel is provided with the 3rd output; This reactor also comprises second ester interchange vessel; The top of this second ester interchange vessel is provided with first output; Top is provided with first input end, second input, the 3rd input and product output, and the bottom is provided with second output, and first output of this second ester interchange vessel is connected with rectifying column; The rectifier bottoms output is connected with the first input end of this second ester interchange vessel; Second input of this second ester interchange vessel is connected with the input of second reboiler through second tubing pump, and the output of second reboiler is connected with second input of second ester interchange vessel, and the 3rd output of first ester interchange vessel is connected with the 3rd input of this second ester interchange vessel.
The utility model adopts the mode of outer circulation heating, improves the heat exchange effect, makes the low-boiling point material of generation accelerate the discharge system.The ester interchange vessel that adopts in the utility model does not have chuck and stirring, invests low.Through experiment with produce to go up dual contrast, the utility model reactor has than conventional reactors that tangible reaction speed is fast, yield is high, separate unit reactor production capacity big, little, the low power consumption and other advantages of investment.
Description of drawings
Fig. 1 is the structural representation of the utility model reactor.
Fig. 2 is the structural representation of shower nozzle.
The structural representation that Fig. 3 uses for the series connection of secondary the utility model.
Among the figure, 1-first ester interchange vessel, 2-first tubing pump, 3-first reboiler, 4-circulation pipe; The special shower nozzle of 5-, the 6-first gas phase pipe, the 7-second gas phase pipe, 8-condenser, 9-low boilers discharge pipe; The 10-pneumatic control valve, 11-first return duct, 12-rectifying column, 13-second return duct; The 14-tower bottom reboiler, 15-second ester interchange vessel, 16-second tubing pump, 17-second reboiler.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
A kind of reactor that is used for ester exchange; Comprise first ester interchange vessel 1; It is characterized in that first ester interchange vessel 1 is connected with rectifying column 12 through the first gas phase pipe 6, first ester interchange vessel, 1 external first reboiler 3, the top output of rectifying column 12 is connected with condenser 8 through the second gas phase pipe 7; Condenser 8 is connected with the top input of rectifying column 12 through second return duct 11, and rectifying column 12 bottom outputs are connected with first ester interchange vessel 1 through first return duct 13.Second return duct 11 is provided with low boilers discharge pipe 9, and low boilers discharge pipe 9 is provided with pneumatic control valve 10.According to the specific embodiment of the utility model, described reactor can be independent 1 cover practical, also can 2 ~ 4 cover series connection use, reaching the effect of continuous ester exchange, can large-scale production, enhance productivity.
Instance 1:
As depicted in figs. 1 and 2; First ester interchange vessel, 1 top is provided with the raw material input and first output; Top is provided with the first input end and second input; The bottom is provided with second output, and first output of first ester interchange vessel 1 is connected with the first gas phase pipe 6, and first return duct 13 is connected with the first input end of first ester interchange vessel 1; First ester interchange vessel, 1 second output is connected with the input of first reboiler 3 through first tubing pump 2, and the output of reboiler 3 is connected with second input of first ester interchange vessel 1.First ester interchange vessel, 1 second input end is provided with shower nozzle 5.Rectifying column 12 bottom outputs connect back rectifying column 12 again through behind the tower bottom reboiler 14.1 li material of first ester interchange vessel is according to this through first tubing pump 2, first reboiler 3 and shower nozzle 5 self-loopas; Low-boiling point material evaporate into rectifying column 12; Install first reboiler, 3, the first reboilers 3 behind first tubing pump 2 additional and adopt shell and tube, the thermal source of first reboiler 3 can adopt steam or deep fat.First tubing pump 2 needs to adopt the low lift and large flow rate pump, and specific discharge is at more than 15 times of first ester interchange vessel, 1 volume.First ester interchange vessel, 1 second input end is provided with shower nozzle 5, makes material be spurting and gets into first ester interchange vessel, 1 top, is beneficial to boiling point material material and leaves first ester interchange vessel 1.Condenser 8 condensed materials are controlled rectifying column 12 temperature through control valve 10, thereby the low-boiling point material content of 13 li of second return ducts is controlled in control.
During use, binary acid fatty ester A and B alcohol are joined first ester interchange vessel 1, open tubing pump 2, open reboiler 3 steam, feed temperature is risen to 80 ~ 120 ℃ after, add base catalyst again.Through the utility model reactor; The low-boiling point alcohol that ester exchange generates can be discharged ester interchange vessel rapidly; Get into rectifying column 12, rectifying column 12 separates low-boiling point alcohol and B alcohol, and low-boiling point alcohol gets into condenser 8 from cat head; A part refluxes and controls the rectifying column tower top temperature afterwards, and a part is the discharge system continuously; B alcohol is back to first ester interchange vessel 1 at the bottom of tower, to satisfy the needs of reaction.Sample analysis behind the 12h, the content of product binary acid fatty ester C reaches more than 98%, and through simple post processing, the yield of product binary acid fatty ester C reaches 95%, and purity reaches more than 99%.
Instance 2:
As shown in Figure 3, according to an embodiment of the utility model, this reactor comprises that also second ester interchange vessel, 15, the second ester interchange vessels 15 are connected with first ester interchange vessel 1, and second ester interchange vessel 15 also is connected with rectifying column 12.The bottom of this first ester interchange vessel 12 is provided with the 3rd output; The top of this second ester interchange vessel 15 is provided with first output; Top is provided with first input end, second input, the 3rd input and product output; The bottom is provided with second output; First output of this second ester interchange vessel 15 is connected with rectifying column 12, and rectifying column 12 bottom outputs are connected with the first input end of this second ester interchange vessel 15, and second input of this second ester interchange vessel 15 is connected with the input of second reboiler 17 through second tubing pump 16; The output of second reboiler 17 is connected with second input of second ester interchange vessel 15, and the 3rd output of first ester interchange vessel 1 is connected with the 3rd input of this second ester interchange vessel 15.
Raw material drops into first ester interchange vessel 1 continuously, flows automatically to second ester interchange vessel 15 again.Two stills supply with a rectifying column 12, to reduce investment outlay.Manufacture a finished product and discharge continuously, control enough time of staying, reach the quantity-produced purpose from second ester interchange vessel 15.Low-boiling point alcohol that process produces and raw alcohol get into rectifying column 12, and after the rectifying, raw alcohol is through valve control at the bottom of the tower, and equivalent gets into two ester interchange vessels.
Claims (7)
1. reactor that is used for ester exchange; Comprise first ester interchange vessel; It is characterized in that first ester interchange vessel is connected with rectifying column through the first gas phase pipe, external first reboiler of first ester interchange vessel, rectifying column is connected with condenser through the second gas phase pipe; Condenser is connected with rectifying column through second return duct, and the rectifier bottoms output is connected with first ester interchange vessel through first return duct.
2. reactor according to claim 1 is characterized in that second return duct is provided with the low boilers discharge pipe, and the low boilers discharge pipe is provided with control valve.
3. reactor according to claim 2; It is characterized in that; The first ester interchange vessel top is provided with the raw material input and first output, and top is provided with the first input end and second input, and the bottom is provided with second output; First output of first ester interchange vessel is connected with the first gas phase pipe; First return duct is connected with the first input end of first ester interchange vessel, and first ester interchange vessel, second output is connected with the input of second reboiler through first tubing pump, and the output of reboiler is connected with second input of first ester interchange vessel.
4. reactor according to claim 3 is characterized in that, first ester interchange vessel, second input end is provided with shower nozzle.
5. according to each described reactor in the claim 1 ~ 4, it is characterized in that the rectifier bottoms output connects back rectifying column again through behind the tower bottom reboiler.
6. according to each described reactor in the claim 1 ~ 3, it is characterized in that this reactor also comprises second ester interchange vessel, second ester interchange vessel is connected with first ester interchange vessel, and second ester interchange vessel also is connected with rectifying column.
7. reactor according to claim 6; It is characterized in that the bottom of this first ester interchange vessel is provided with the 3rd output, this reactor also comprises second ester interchange vessel; The top of this second ester interchange vessel is provided with first output; Top is provided with first input end, second input, the 3rd input and product output, and the bottom is provided with second output, and first output of this second ester interchange vessel is connected with rectifying column; The rectifier bottoms output is connected with the first input end of this second ester interchange vessel; Second input of this second ester interchange vessel is connected with the input of second reboiler through second tubing pump, and the output of second reboiler is connected with second input of second ester interchange vessel, and the 3rd output of first ester interchange vessel is connected with the 3rd input of this second ester interchange vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220062080XU CN202447074U (en) | 2012-02-24 | 2012-02-24 | Reactor for ester exchanging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220062080XU CN202447074U (en) | 2012-02-24 | 2012-02-24 | Reactor for ester exchanging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202447074U true CN202447074U (en) | 2012-09-26 |
Family
ID=46862969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220062080XU Expired - Lifetime CN202447074U (en) | 2012-02-24 | 2012-02-24 | Reactor for ester exchanging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202447074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524478A (en) * | 2013-10-24 | 2014-01-22 | 青岛科技大学 | Device and method for shortening ketalation time in ibuprofen synthesis process |
| CN107739364A (en) * | 2017-10-17 | 2018-02-27 | 青岛科技大学 | A kind of ketalization technology of brufen and device for reacting azeotropic distillation coupling |
-
2012
- 2012-02-24 CN CN201220062080XU patent/CN202447074U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524478A (en) * | 2013-10-24 | 2014-01-22 | 青岛科技大学 | Device and method for shortening ketalation time in ibuprofen synthesis process |
| CN103524478B (en) * | 2013-10-24 | 2015-04-08 | 青岛科技大学 | Device and method for shortening ketalation time in ibuprofen synthesis process |
| CN107739364A (en) * | 2017-10-17 | 2018-02-27 | 青岛科技大学 | A kind of ketalization technology of brufen and device for reacting azeotropic distillation coupling |
| CN107739364B (en) * | 2017-10-17 | 2020-05-15 | 青岛科技大学 | Reaction-azeotropic distillation coupled ibuprofen ketalization technology and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202447074U (en) | Reactor for ester exchanging | |
| CN102690186A (en) | Methyl acetate hydrolysis partition reaction rectification column and operating method thereof | |
| CN207786544U (en) | A kind of lithium salts process units | |
| CN100503533C (en) | Methyl esterification in biologic diesel oil production and methanol continuously purification device | |
| CN203782064U (en) | Reactor for synthesizing propylene carbonate or ethylene carbonate by utilizing urea and propylene glycol or ethylene glycol | |
| CN203212506U (en) | Efficient ethyl acetate reaction rectification device | |
| CN105194895B (en) | A kind of method that biodiesel is prepared using thermal coupling next door reactive distillation column | |
| CN104829452B (en) | Energy-saving production system of ethyl acetate and corresponding energy-saving production technology | |
| CN201384865Y (en) | Steam-free alcohol distillation tower | |
| CN201037139Y (en) | Device for producing methyl esterification biological diesel oil and continuously purifying methanol | |
| CN204325191U (en) | A kind of potassium methylate aqueous methanol steam reutilization system | |
| CN202893340U (en) | Novel reaction kettle with cooling spacer bush | |
| CN202527174U (en) | Reaction kettle for detachably producing D-ethyl ester by using DL-ethyl ester | |
| CN203474692U (en) | Efficient and energy-saving preparation device of acetyl acetone | |
| CN202621148U (en) | Gas-phase medium distributing device with stirring jade glass synthetic reaction kettle | |
| CN109748827A (en) | The process of continuous synthesis dimethyl suflfate | |
| CN203048927U (en) | Internal recycle airlift reactor with built-in plate-fin heat exchanger | |
| CN203065474U (en) | Outer circulation airlift reactor internally provided with plate-fin heat exchangers | |
| CN203044002U (en) | Stirring type reactor with built-in plate-fin heat exchanger | |
| CN204737904U (en) | Device of hydrolysising in succession of cyclopropanecarboxylic acid isopropyl ester | |
| CN203639369U (en) | Multi-level external circular reaction system for producing m-toluic acid | |
| CN202741125U (en) | Vertical type cooling reaction kettle | |
| CN203890322U (en) | Glycerolysis and esterification reaction device | |
| CN203764242U (en) | Double jacketed reaction kettle | |
| CN202173931U (en) | Energy-saving heat exchanger for chemical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |