CN204469260U - Toluene distillation system - Google Patents
Toluene distillation system Download PDFInfo
- Publication number
- CN204469260U CN204469260U CN201420821578.9U CN201420821578U CN204469260U CN 204469260 U CN204469260 U CN 204469260U CN 201420821578 U CN201420821578 U CN 201420821578U CN 204469260 U CN204469260 U CN 204469260U
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- China
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- condenser
- input
- rectifying column
- rectifying
- discharge nozzle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a kind of toluene distillation system, comprise rectifying tower reactor, rectifying column, heater, the first condenser, gas phase pipe, distillate discharge nozzle, product vacuum groove and Roots vaccum pump; The input that described rectifying tower reactor is positioned at rectifier bottoms, described heater connects rectifying tower reactor, described rectifying column connects the input of the first condenser, the output of described first condenser connects the input of product vacuum groove, the output of product vacuum groove connects Roots vaccum pump by vacuum tube; Distillate discharge nozzle two ends are communicated with rectifying column and the first condenser respectively, and distillate discharge nozzle is also provided with U-tube liquid seal device, gas phase pipe one end is connected on rectifying column, the other end is connected on the input of Roots vaccum pump.The utility model is separated Light ends organic matter while rectifying high boiling point organic compound, reuses after condensation.Saved the energy, available protecting environment, improves the purity of refinement.
Description
Technical field
The utility model relates to organic synthesis chemical field, relates in particular to a kind of toluene distillation system with light component organic matter recovery function.
Background technology
In organic synthesis chemical field, rectifying is a kind of known chemical industry operation technology, is used for being separated the different material of two or more relative volatilities.But only have in traditional rectificating method separating mixture during micro-Light ends organic matter and seem unable to do what one wishes.Conventionally, the micro-Light ends that also mixture can be contained is separated, but invests high, and operating cost is high, does not unreasonablely economically calculate in other words.In the extensive economy age, these Light ends can be given up and be dispersed in air, but this does not meet present environmental law requirement.In addition, also there is part gaseous light component organic matter and confuse pomegranate fluid and enter condenser condenses in prior art, reduces the defect of product purity.
Utility model content
The utility model provides a kind of toluene distillation system, is intended to solve the problems of the technologies described above.
The concrete technical scheme that the utility model adopts is:
A kind of toluene distillation system, comprises rectifying tower reactor, rectifying column, heater, the first condenser, product vacuum groove, Roots vaccum pump, the second condenser and light component recycling can; Described rectifying tower reactor is positioned at rectifier bottoms, described heater is positioned at the input that rectifying tower reactor is inner, described rectifying column connects the input of the first condenser, the output of described first condenser connects the input of product vacuum groove, the output of described product vacuum groove connects Roots vaccum pump by vacuum tube; The input of described second condenser connects with Roots vacuum delivery side of pump, the output of described second condenser is communicated with light component recycling can, described light component recycling can also comprises recycling can blow-down pipe, and described recycling can blow-down pipe is positioned at the top of light component recycling can.
In this way: utilize the second condenser to carry out condensation separation to light component gas-liquid mixture, light component organic matter is wherein imported in light component recycling can and collects, and final realization recycles.Meanwhile, by emptying being arranged at Light ends recycling can top, reserve the Light ends that maximum volume deposits recovery to recycling can.
Preferably: also comprise gas phase pipe, distillate discharge nozzle, described distillate discharge nozzle two ends connect rectifying column and the first condenser respectively, described distillate discharge nozzle is also provided with U-tube fluid-tight, described gas phase pipe one end is connected on rectifying column, the other end and vacuum tube are connected in parallel the input of Roots vaccum pump.
In this way: the light component organic matter taking most of gaseous state when utilizing U-tube fluid-tight to stop high-temperature low-pressure distillate to be discharged by rectifying column out of, the air pressure change of Simultaneous Stabilization rectifying column inside.And the light component organic matter synchronously cannot got rid of with high-temperature low-pressure distillate is directly entered in Roots vaccum pump by gas phase pipe.Ensure that the light component organic matter of gaseous state does not enter the first condenser condenses and refines and go out, improve the refining purity of toluene further.
Described recycling can blow-down pipe can be the conduit of radius 50mm, long 1200mm.Heat-insulation layer can also be provided with outside described rectifying column and rectifying tower reactor.The caliber cross-sectional area of described gas phase pipe can be 16 times of the caliber cross-sectional area of distillate discharge nozzle.
Compared with prior art, the toluene distillation system that the utility model provides is separated Light ends organic matter while rectifying high boiling point organic compound, reuses after condensation.Significantly save the energy, simultaneously available protecting environment.Improve the purity of refinement.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
In Fig. 1, the corresponding relation of each Reference numeral and parts is as follows:
1, rectifying tower reactor; 2, rectifying column; 3, heater; 4, heat-insulation layer; 5, distillate discharge nozzle; 51, U-tube liquid seal device; 6, gas phase pipe; 7, the first condenser; 8, product vacuum groove; 9, Roots vaccum pump; 10, the second condenser; 11, light component recycling can; 111, recycling can blow-down pipe; 12, vacuum tube
Detailed description of the invention
Below in conjunction with each accompanying drawing and illustrated embodiment, the utility model is described further:
Embodiment 1 of the present utility model as shown in Figure 1:
A kind of toluene distillation system, comprises rectifying tower reactor 1, rectifying column 2, heater 3, heat-insulation layer 4, distillate discharge nozzle 5, gas phase pipe 6, first condenser 7, product vacuum groove 8, Roots vaccum pump 9, second condenser 10 and light component recycling can 11.
Heat-insulation layer 4 is located at the outside of rectifying column 2 and rectifying tower reactor 1.Described rectifying tower reactor 1 is positioned at bottom rectifying column 2, described heater 3 is positioned at rectifying tower reactor 1 inside, described rectifying column 2 connects the input of the first condenser 7, the output of described first condenser 7 connects the input of product vacuum groove 8, the output 82 of described product vacuum groove 8 connects the input 91 of Roots vaccum pump 9 by vacuum tube 12.The input of described second condenser 10 connects with the output of Roots vaccum pump 9, the output of described second condenser 10 is communicated with light component recycling can 11, described light component recycling can 11 also comprises recycling can blow-down pipe 111, and described recycling can blow-down pipe 111 is positioned at the top of light component recycling can 11.Distillate discharge nozzle 5 two ends are communicated with rectifying column 2 and the first condenser 7 respectively, distillate discharge nozzle 5 is also provided with U-tube liquid seal device 51, described gas phase pipe 6 one end is connected on rectifying column 2, and the other end connects the input 91 of Roots vaccum pump 9.Wherein: recycling can blow-down pipe 111 is the conduit of radius 50mm, long 1200mm.The caliber cross-sectional area of gas phase pipe 6 is 16 times of the caliber cross-sectional area of distillate discharge nozzle 5.
In practice: with not gram reaction preparation one benzyl toluene and dibenzyl toluene, when distillation system is evacuated to 200Pa, material is added, be warming up to 200 DEG C, in distillate one benzyl toluene obtained, toluene and benzyl chloride content are all less than 20PPM, and in Light ends recycling can, Light ends content is greater than 80%.
The utility model is not limited to the restriction of above-described embodiment, and the equivalencing means that other various those skilled in the art skillfully grasp and distortion all fall in the scope of the utility model protection.Protection domain of the present utility model is specifically defined by appended claims.
Claims (5)
1. a toluene distillation system, comprises rectifying tower reactor (1), rectifying column (2), heater (3), the first condenser (7), product vacuum groove (8) and Roots vaccum pump (9); The input that described rectifying tower reactor (1) is positioned at rectifying column (2) bottom, described heater (3) is positioned at rectifying tower reactor (1) inside, described rectifying column (2) connects the first condenser (7), the output of described first condenser (7) connect the input of product vacuum groove (8), the output (82) of described product vacuum groove (8) connect Roots vaccum pump (9) input by vacuum tube (12); It is characterized in that: also comprise gas phase pipe (6) and distillate discharge nozzle (5), described distillate discharge nozzle (5) two ends are communicated with rectifying column (2) and the first condenser (7) respectively, described distillate discharge nozzle (5) is also provided with U-tube liquid seal device (51), described gas phase pipe (6) one end is connected on rectifying column (2), the other end connects the input (91) of Roots vaccum pump (9).
2. a kind of toluene distillation system as claimed in claim 1, it is characterized in that: also comprise the second condenser (10) and light component recycling can (11), the input of described second condenser (10) connects with the output of Roots vaccum pump (9), the output of described second condenser (10) is communicated with light component recycling can (11), described light component recycling can (11) also comprises recycling can blow-down pipe (111), and described recycling can blow-down pipe (111) is positioned at the top of light component recycling can (11).
3. a kind of toluene distillation system as claimed in claim 2, is characterized in that: described recycling can blow-down pipe (111) is radius 50mm, the conduit of long 1200mm.
4. a kind of toluene distillation system as claimed in claim 2, is characterized in that: described rectifying column (2) is also provided with heat-insulation layer (4) with the outside of rectifying tower reactor (1).
5. a kind of toluene distillation system as claimed in claim 2, is characterized in that: the caliber cross-sectional area of described gas phase pipe (6) is 16 times of the caliber cross-sectional area of distillate discharge nozzle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821578.9U CN204469260U (en) | 2014-12-23 | 2014-12-23 | Toluene distillation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821578.9U CN204469260U (en) | 2014-12-23 | 2014-12-23 | Toluene distillation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204469260U true CN204469260U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420821578.9U Expired - Fee Related CN204469260U (en) | 2014-12-23 | 2014-12-23 | Toluene distillation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204469260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111248A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Device and method for recovering toluene from organic solvent for preparing polyolefin catalyst |
-
2014
- 2014-12-23 CN CN201420821578.9U patent/CN204469260U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111248A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Device and method for recovering toluene from organic solvent for preparing polyolefin catalyst |
| CN111111248B (en) * | 2018-10-30 | 2021-10-15 | 中国石油化工股份有限公司 | Device and method for recovering toluene from organic solvent for preparing polyolefin catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20211223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |