CN202962440U - Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole - Google Patents
Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole Download PDFInfo
- Publication number
- CN202962440U CN202962440U CN2012207547044U CN201220754704U CN202962440U CN 202962440 U CN202962440 U CN 202962440U CN 2012207547044 U CN2012207547044 U CN 2012207547044U CN 201220754704 U CN201220754704 U CN 201220754704U CN 202962440 U CN202962440 U CN 202962440U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- control device
- reaction kettle
- reactor
- valve
- 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 - Fee Related
Links
- PQAMFDRRWURCFQ-UHFFFAOYSA-N 2-ethyl-1h-imidazole Chemical compound CCC1=NC=CN1 PQAMFDRRWURCFQ-UHFFFAOYSA-N 0.000 title abstract 3
- 230000002194 synthesizing effect Effects 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 2-ethyl imidazol Chemical compound 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000007791 liquid phase Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 238000011049 filling Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 2
- 230000006837 decompression Effects 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02P20/141—Feedstock
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole, which enables 2-ethylimidazole to be synthesized in a normal-pressure reaction kettle through a gas-liquid phase method. The continuous feeding and automatic pressure control device is characterized in that an absorption column 12 is arranged on the normal-pressure reaction kettle 6; a filling material is built in the absorption column 12, the top end of which is connected with a liquid sealing tank 4 through a pipeline; a gas pipeline 11 is arranged at the bottom and communicated with the reaction kettle 6; a return bent pipe 10 is also arranged and connected with the reaction kettle 6; a pump 2 is arranged between the reaction kettle 6 and the absorption column 12, and is connected with a circuit control device 3 which is installed above one side of the liquid sealing tank 4; a floating ball connected below the circuit control device 3 is put in the liquid sealing tank 4; the outlet end of the pump 2 is connected with a spray head 13 arranged in the absorption column 12 through a pipeline; the inlet end of the pump 2 is connected with a pipeline inserted into the reaction kettle 6; a gas pipe is arranged on the reaction kettle 6 and connected with an ammonia steel cylinder 15 through a decompression valve 16; the ammonia steel cylinder 15 is put above a measurement scale 14; a heating steam valve 5 of the reaction kettle 6 is connected with a steam pipeline of a boiler; a discharging valve 8 and a condensed water valve 9 are arranged at the bottom; and the discharging valve 8 is connected with an evaporation separator through a pipeline. The continuous feeding and automatic pressure control device disclosed by the utility model not only has the advantages of being simple in structure and convenient to operate but also is capable of effectively preventing leakage of ammonia and reducing environmental pollution.
Description
One, technical field
The utility model belongs to organic chemical synthesis equipment, relates in particular to the synthetic continuous feed pressure automatic control device of a kind of 2-ethyl imidazol(e).
Two, background technology
2-ethyl imidazol(e) gas and liquid phase method synthesis technique is:
The gas and liquid phase reaction is generally all completed in gas and liquid phase capping system.Gas and liquid phase capping system will realize by pressure reaction still usually.And pressure reaction still involves great expense, and operation easier is large, and danger coefficient is high.
Three, summary of the invention
The purpose of this utility model is exactly for a kind of continuous feed pressure automatic control device that can utilize the synthetic 2-ethyl imidazol(e) of normal-pressure reaction kettle equipment gas and liquid phase method is provided.This device comprises the facilities such as reactor, pipeline, valve and circuit control device.It is characterized in that: can automatically control reaction system under normal pressure and micro-vacuum state.
The technical scheme that the utility model adopts is: on normal-pressure reaction kettle, absorbing column is set, and the built-in filler of absorbing column, the top is connected with liquid seal trough by pipeline, and the bottom is provided with gas pipeline and communicates with reactor, also establishes return bend and is connected with reactor.Be provided with pump between reactor and absorbing column, pump is connected with circuit control device, described circuit control device is installed on above a side of liquid seal trough, the ball float that its below connects is placed in liquid seal trough, the delivery side of pump end is connected with shower nozzle in being arranged at absorbing column by pipeline, entrance point is connected with pipeline in inserting reactor, and reactor is provided with tracheae and is connected with the ammonia steel cylinder by pressure-reducing valve, and this ammonia steel cylinder is placed in and measures on chessboard.The heating steam valve of reactor is connected with the boiler steam pipeline, and the bottom is provided with bleeder valve and condensation water valve, and bleeder valve is connected with vapor seperator by pipeline.
The utility model compared with prior art, have following advantage and beneficial effect: the pressure reaction still that do not need to involve great expense, operation easier is large and danger coefficient is high, only need on the basis of normal-pressure reaction kettle equipment, automatic cycle fluid-tight pressure control device and ammonia weigh feeder to be set; This device can measure the ammonia intake easily, and ammonia directly passes in reactor, absorbs mainly to carry out in reactor.Only have the ammonia of working as to pass into flow excessive, when the reactor ammonia pressure surpassed setting value, pump was just started working, and the absorption tower is just brought into play step-down, prevented the effect of ammonia leakage.Like this, both greatly reduce the working time of pump, can effectively prevent again the ammonia leakage.Obviously, be conducive to extend the life-span of pump motor, also saved electric energy.
The utility model is described in further detail below in conjunction with accompanying drawing:
Four, description of drawings:
Fig. 1 is structural principle schematic diagram of the present utility model.
In figure: 1 is charging aperture, and 2 is pump, and 3 is circuit control device, 4 is liquid seal trough, and 5 are the heating steam valve, and 6 is reactor, 7 is stirring arm, and 8 is bleeder valve, and 9 are the condensation water valve, 10 is return bend, and 11 is gas pipeline, and 12 is absorbing column, 13 is shower nozzle, 14 are the metering chessboard, and 15 is the ammonia steel cylinder, and 16 is pressure-reducing valve.
Five, the specific embodiment
As shown in Figure 1, on normal-pressure reaction kettle 6, absorbing column 12 is set, the built-in filler of absorbing column 12, the top is connected with liquid seal trough 4 by pipeline, and the bottom is provided with gas pipeline 11 and communicates with reactor 6, also establishes return bend 10 and is connected with reactor 6.Be provided with pump 2 between reactor 6 and absorbing column 12, pump 2 is connected with circuit control device 3, described circuit control device 3 is installed on above a side of liquid seal trough 4, the ball float that its below connects is placed in liquid seal trough 4, the port of export of pump 2 is connected by the pipeline shower nozzle 13 interior with being arranged at absorbing column 12, the entrance point pipeline interior with inserting reactor 6 is connected, and reactor 6 is provided with tracheae and is connected with ammonia steel cylinder 15 by pressure-reducing valve 6, and this ammonia steel cylinder 15 is placed on metering chessboard 14.The heating steam valve 5 of reactor 6 is connected with the boiler steam pipeline, and the bottom is provided with bleeder valve 8 and condensation water valve 9, and bleeder valve 8 is connected with vapor seperator by pipeline.When implementing the utility model, a certain amount of 40% glyoxal solution and pure propionic aldehyde are added reactor 6 from charging aperture 1, open ammonia steel cylinder 17 switches and slowly charge and discharge ammonia in reactor 6.Open the heating steam valve 5 on reactor 6, steam in the thermal source such as boiler is entered in the interlayer of reactor 6 to be heated the blend absorbent in still, if pump 2 is not worked or the ratio of its working time and time of having a rest less than 1/4 o'clock, can suitably increase ammonia flow, if the working time of pump 2 and the ratio of time of having a rest near 1/2 o'clock, should suitably reduce ammonia flow.Can accurately grasp according to metering chessboard 16 demonstration data and charge and discharge ammonia quantity.When reaching the ammonia molal quantity of reaction requirement, should stop passing into ammonia.To pass into flow excessive when ammonia, and when the reactor ammonia pressure surpassed setting value, pressure inductor was connected the circuit of circuit control system 3, and pump 2 is just started working.Pump 2 enters still liquid continuous uniform ground extraction self-absorption post 12 teeming in reactor 6, one one of the ammonia that is filled with in reactor is absorbed by still liquid, another part enters absorbing column 12 bottoms by gas pipeline 11 and is injected the still liquid of filling surface in posts from shower nozzle 13 and absorb, then flows into reactors from return bend 10.By the absorption process of above-mentioned absorbing column, the performance step-down, prevent the effect of ammonia leakage.After its reaction is completed, turn off cap relief valve 5, open coupled reaction still 6 and be delivered to bleeder valve 8 on pipeline between vapor seperator, make mixing material after reaction is completed enter to evaporate to separate in the evaporation separation plants and obtain finished product.
Claims (1)
1. a 2-ethyl imidazol(e) synthesizes continuous feed pressure automatic control device, it comprises reactor, pipeline, valve and circuit control device, it is characterized in that: on normal-pressure reaction kettle (6), absorbing column (12) is set, the built-in filler of absorbing column (12), the top is connected with liquid seal trough (4) by pipeline, the bottom is provided with gas pipeline (11) and communicates with reactor (6), also establishing return bend (10) is connected with reactor (6), be provided with pump (2) between reactor (6) and absorbing column (12), pump (2) is connected with circuit control device (3), described circuit control device (3) is installed on above a side of liquid seal trough (4), the ball float that its below connects is placed in liquid seal trough (4), the port of export of pump (2) is connected by the pipeline shower nozzle (13) interior with being arranged at absorbing column (12), the entrance point pipeline interior with inserting reactor (6) is connected, reactor (6) is provided with tracheae and is connected with ammonia steel cylinder (15) by pressure-reducing valve (16), this ammonia steel cylinder (15) is placed on metering chessboard (14), the heating steam valve (5) of reactor (6) is connected with the boiler steam pipeline, the bottom is provided with bleeder valve (8) and condensation water valve (9), bleeder valve (8) is connected with vapor seperator by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207547044U CN202962440U (en) | 2012-11-21 | 2012-11-21 | Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207547044U CN202962440U (en) | 2012-11-21 | 2012-11-21 | Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202962440U true CN202962440U (en) | 2013-06-05 |
Family
ID=48503571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207547044U Expired - Fee Related CN202962440U (en) | 2012-11-21 | 2012-11-21 | Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202962440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622090A (en) * | 2017-02-27 | 2017-05-10 | 江苏海阳锦纶新材料有限公司 | PA6 prepolymerization pipe capable of effectively preventing gel from being produced at top |
-
2012
- 2012-11-21 CN CN2012207547044U patent/CN202962440U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622090A (en) * | 2017-02-27 | 2017-05-10 | 江苏海阳锦纶新材料有限公司 | PA6 prepolymerization pipe capable of effectively preventing gel from being produced at top |
| CN106622090B (en) * | 2017-02-27 | 2019-08-27 | 江苏海阳锦纶新材料有限公司 | A kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201921534U (en) | Low-temperature evaporation concentration device | |
| CN202169099U (en) | Plate type and packing combined reactive distillation device with continuous external circulation | |
| CN204874475U (en) | Distillation plant for liquor | |
| CN201578872U (en) | Multi-strand lateral line discharging combined type rectifying apparatus | |
| CN202962440U (en) | Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole | |
| CN202801179U (en) | Steam generating chamber and steam cabinet | |
| CN202018832U (en) | Test device for loss of coolant accident (LOCA) of nuclear power station | |
| CN202762414U (en) | Glycol regenerating device | |
| CN202061612U (en) | 2-Methylimidazole synthesis gas continuous feeding pressure self-controller | |
| CN203605745U (en) | Steam heat recovery device | |
| CN206474152U (en) | A kind of NBB reaction unit | |
| CN106479668B (en) | Device for extracting star anise oil by negative pressure circulating water | |
| CN201301293Y (en) | Imidazole synthesis gas continuous feeding pressure self-control device | |
| CN103706139B (en) | Nitrobenzene vaporization rectifying blender | |
| CN204074044U (en) | A kind of N-methylimidazole forming gas continuous feed pressure automatic control device | |
| CN208742518U (en) | Distillation and reflux device in 2,5- dimethoxy dihydrofuran synthetic reaction | |
| CN203456490U (en) | Automatic liquid supplementation system | |
| CN206113688U (en) | Dead steam recycling device | |
| CN202359053U (en) | Device for reducing benzene consumption in polyformaldehyde production process | |
| CN209210753U (en) | A kind of circulation essential oil water distillation apparatus | |
| CN203620301U (en) | Efficient vapor-fluid separation device | |
| CN203429085U (en) | Device for concentrating dilute formic acid and co-producing phosphoric acid by use of phosphorus pentoxide | |
| CN203572535U (en) | High-temperature steam-contained fluid heat exchanging and metering integrated device | |
| CN203235281U (en) | External back-flow type precious pressure-reducing rectifying head | |
| CN204281648U (en) | A kind of device utilized containing cyanogen End gas production hydroxyacetonitrile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUANGGANG NORMAL UNIVERSITY Free format text: FORMER OWNER: CENG ZHOUHUA Effective date: 20131025 Owner name: HUANGGANG YINHE AARTI PHARMACEUTICAL CO.,LTD. Effective date: 20131025 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131025 Address after: 438000 Huanggang Development Zone, Xingang, No. two, No. Road, No. 146 Patentee after: Huanggang Normal University Patentee after: Huanggang Yinhe Aarti Pharmaceutical Co.,Ltd. Address before: 438000 School of chemical engineering, Huanggang Normal University, Hubei Patentee before: Zeng Zhouhua |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131121 |