CN210150998U - Device for continuously producing mercaptopropionic acid - Google Patents
Device for continuously producing mercaptopropionic acid Download PDFInfo
- Publication number
- CN210150998U CN210150998U CN201920945605.6U CN201920945605U CN210150998U CN 210150998 U CN210150998 U CN 210150998U CN 201920945605 U CN201920945605 U CN 201920945605U CN 210150998 U CN210150998 U CN 210150998U
- Authority
- CN
- China
- Prior art keywords
- kettle
- discharge end
- storage tank
- mercaptopropionic acid
- feed end
- 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.)
- Active
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a device of serialization production mercaptopropionic acid belongs to mercaptopropionic acid production field. A device for continuously producing mercaptopropionic acid comprises a batching kettle; the feed end of the tubular reactor is connected with the discharge end of the batching kettle; the feed end of the first acidification kettle is connected with the discharge end of the tubular reactor; the feed end of the second acidification kettle is connected with the discharge end of the first acidification kettle; the extraction tower is connected with the discharge end of the second acidification kettle; the concentration kettle is connected with the discharge end of the extraction tower; the collecting tank is connected with the discharge end of the concentration kettle; the feed end of the condenser is connected with the concentration kettle; the feed end of the storage tank is connected with the discharge end of the condenser, and the discharge end of the storage tank is connected with the extraction tower; the utility model discloses among the serialization device, practiced thrift the solvent quantity to realized that the quick automatic cycle of solvent is used mechanically, the solvent deposit volume in the workshop can not exceed 10 tons, ensured safety.
Description
Technical Field
The utility model relates to a mercaptopropionic acid production technical field especially relates to a device of serialization production mercaptopropionic acid.
Background
The process of mercaptopropionic acid comprises the following steps: acrylic acid and thiourea synthesis, propionate; centrifuging to obtain propionate solid; ammonolysis of propionate in ammonia; acidifying with hydrochloric acid; extracting with dichloroethane; condensing to remove dichloroethane; distilling to obtain the mercaptopropionic acid product.
However, the existing production workshop adopts the process, adopts extraction for 7 times, is very complicated, and causes the increase of the storage amount of solvent in the workshop, and the workshop is usually provided with 4 plants with 10m3The large storage tank is characterized in that a large amount of dichloroethane organic solvent is stored in a workshop, and if the original process is expanded to three times, the storage capacity of the solvent in the workshop is close to 100 tons; is a great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the production of mercaptopropionic acid is not suitable for large-scale production expansion in the prior art, has certain potential safety hazard, and provides a device for continuously producing mercaptopropionic acid.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an apparatus for the continuous production of mercaptopropionic acid, comprising:
a batching kettle;
the feed end of the tubular reactor is connected with the discharge end of the batching kettle;
the feed end of the first acidification kettle is connected with the discharge end of the tubular reactor;
the feed end of the second acidification kettle is connected with the discharge end of the first acidification kettle;
the extraction tower is connected with the discharge end of the second acidification kettle;
the concentration kettle is connected with the discharge end of the extraction tower;
the collecting tank is connected with the discharge end of the concentration kettle;
the feed end of the condenser is connected with the concentration kettle;
and the feed end of the storage tank is connected with the discharge end of the condenser, and the discharge end of the storage tank is connected with the extraction tower.
Preferably, the device also comprises a hydrochloric acid storage tank and an ammonia water storage tank which are used for charging the batching kettle.
Preferably, be provided with the jar of keeping in between batching cauldron and the tubular reactor, batching cauldron discharge end links to each other with the jar feed end of keeping in, the jar discharge end of keeping in links to each other with the tubular reactor feed end, be equipped with first measuring pump on the pipeline that the jar discharge end of keeping in links to each other with the tubular reactor feed end.
Preferably, the system further comprises a hydrochloric acid tank for feeding materials to the first acidification kettle, and a second metering pump is arranged on a pipeline connecting the hydrochloric acid tank and the first acidification kettle.
Preferably, the system further comprises a dichloroethane storage tank for supplementing material to the storage tank, and a third metering pump is arranged on a pipeline connecting the storage tank and the dichloroethane storage tank.
Preferably, a fourth metering pump is arranged on a pipeline connecting the storage tank and the extraction tower.
Preferably, the extraction column leads the waste water to a waste reservoir via a waste pipe.
Preferably, the concentration kettle adopts a thin film evaporator or a distillation kettle.
Compared with the prior art, the utility model provides a device of serialization production mercaptopropionic acid possesses following beneficial effect:
the device for continuously producing the mercaptopropionic acid directly enters a concentration kettle through dichloroethane continuously discharged from the bottom of an extraction tower; concentrating at normal pressure in a concentrating kettle, directly feeding the evaporated recovered dichloroethane into a dichloroethane storage tank, and feeding the dichloroethane from the dichloroethane storage tank into the extraction tower again; the concentration kettle is continuously evaporated, continuously fed and continuously discharged; a certain high liquid level is kept in the concentration kettle, and a good heat exchange effect is maintained; in the novel continuous device, the solvent consumption is saved, the rapid automatic circulation and reuse of the solvent are realized, the solvent storage capacity in a workshop does not exceed 10 tons, and the safety is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a device for continuously producing mercaptopropionic acid according to the present invention;
FIG. 2 is a schematic structural view of a part of an apparatus for continuously producing mercaptopropionic acid according to the present invention;
fig. 3 is one of the structural schematic diagrams of the apparatus for continuously producing mercaptopropionic acid according to the present invention.
In the figure: 1. a batching kettle; 2. a tubular reactor; 3. a first acidification kettle; 4. a second acidification kettle; 5. an extraction tower; 6. a condenser; 7. a storage tank; 8. a concentration kettle; 9. a collection tank; 10. a hydrochloric acid and propionic acid storage tank; 11. an ammonia water storage tank; 12. a temporary storage tank; 13. a hydrochloric acid tank; 14. a second metering pump; 15. a first metering pump; 16. a wastewater tank; 17. a fourth metering pump; 18. a third metering pump; 19. a dichloroethane storage tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to FIGS. 1-3, an apparatus for continuously producing mercaptopropionic acid comprises
A batching kettle 1;
the feed end of the tubular reactor 2 is connected with the discharge end of the batching kettle 1;
a first acidification kettle 3, wherein the feed end of the first acidification kettle is connected with the discharge end of the tubular reactor 2;
the feed end of the second acidification kettle 4 is connected with the discharge end of the first acidification kettle 3;
the extraction tower 5 is connected with the discharge end of the second acidification kettle 4;
the concentration kettle 8 is connected with the discharge end of the extraction tower 5;
the collecting tank 9 is connected with the discharge end of the concentration kettle 8;
a feed end of the condenser 6 is connected with the concentration kettle 8;
a feed end of the storage tank 7 is connected with a discharge end of the condenser 6, and the discharge end is connected with the extraction tower 5;
the dichloroethane continuously discharged from the bottom of the extraction tower 5 directly enters a concentration kettle 8; the concentration kettle 8 is concentrated under normal pressure, the distilled recovered dichloroethane directly enters a dichloroethane storage tank 7, and enters the extraction tower 5 again from the dichloroethane storage tank 7; the concentration kettle 8 is continuously evaporated, continuously fed and continuously discharged; a certain high liquid level is kept in the concentration kettle, and a good heat exchange effect is maintained; in the novel continuous device, the solvent consumption is saved, the rapid automatic cycle and reuse of the solvent are realized, and the storage capacity of the solvent in a workshop cannot exceed 10 tons;
the main reaction through ammonolysis is carried out in the tubular reactor 2, and the temperature can be raised under pressure and the speed is accelerated because the main reaction is a homogeneous reaction; the outlet of the tubular reactor 2 adopts a back pressure system to maintain the pressure in the tube; the reaction temperature is 120 ℃, and the residence time is 20 minutes; cooling the rear section of the reactor;
the tubular reactor 2 is used, the whole process is stable, and the steam consumption of the step of ammonolysis is obviously reduced;
the whole process reduces the consumption of ammonia water, correspondingly reduces the consumption of hydrochloric acid, reduces the amount of waste water and reduces the amount of waste salt.
The device also comprises a hydrochloric acid storage tank 10 and an ammonia water storage tank 11 which are used for charging the batching kettle 1; adopt the mode of batching, use a 3000L batching cauldron 1, use the hopper, use the method of subtracting the weight to add fixed quantity's propionate from propane hydrochloric acid storage tank 10 through the screw rod, add quantitative aqueous ammonia through electromagnetic flow meter aqueous ammonia storage tank 11, maintain in batching cauldron 1 within 30 degrees.
Be provided with between batching cauldron 1 and the tubular reactor 2 and keep in jar 12, batching cauldron 1 discharge end links to each other with jar 12 feed end of keeping in, and jar 12 discharge end of keeping in links to each other with tubular reactor 2 feed end, keeps in and is equipped with first measuring pump 15 on the pipeline that jar 12 discharge end and tubular reactor 2 feed end link to each other, and batching cauldron 1's bottom valve discharge gate is squeezed into tubular reactor 2 in through first measuring pump 15, through flowmeter and regulating valve control flow.
The device also comprises a hydrochloric acid tank 13 for feeding materials into the first acidification kettle 3, wherein a second metering pump 14 is arranged on a pipeline connecting the hydrochloric acid tank 13 and the first acidification kettle 3 for quantitatively feeding hydrochloric acid.
Also comprises a dichloroethane storage tank 19 for supplementing material to the storage tank 7, a third metering pump 18 is arranged on a pipeline connecting the storage tank 7 and the dichloroethane storage tank 19,
a fourth metering pump 17 is arranged on a pipeline connecting the storage tank 7 and the extraction tower 5; a level control can be used on the storage tank 7 and insufficient dichloroethane will be transported from the storage tank 7.
The extraction column 5 leads the waste water to a waste water basin 16 via a waste water pipe.
The concentration kettle 8 adopts a thin film evaporator or a distillation kettle.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. An apparatus for continuously producing mercaptopropionic acid, comprising: a batching kettle (1); the feed end of the tubular reactor (2) is connected with the discharge end of the batching kettle (1); the feed end of the first acidification kettle (3) is connected with the discharge end of the tubular reactor (2); the feed end of the second acidification kettle (4) is connected with the discharge end of the first acidification kettle (3); the extraction tower (5) is connected with the discharge end of the second acidification kettle (4); the concentration kettle (8) is connected with the discharge end of the extraction tower (5); the collecting tank (9) is connected with the discharge end of the concentration kettle (8); the feed end of the condenser (6) is connected with the concentration kettle (8); and the feed end of the storage tank (7) is connected with the discharge end of the condenser (6), and the discharge end of the storage tank is connected with the extraction tower (5).
2. The device for continuously producing mercaptopropionic acid according to claim 1, further comprising a hydrochloric acid storage tank (10) and an ammonia storage tank (11) for charging the batching kettle (1).
3. The device for continuously producing mercaptopropionic acid according to claim 1, wherein a temporary storage tank (12) is arranged between the batching kettle (1) and the tubular reactor (2), the discharge end of the batching kettle (1) is connected with the feed end of the temporary storage tank (12), the discharge end of the temporary storage tank (12) is connected with the feed end of the tubular reactor (2), and a first metering pump (15) is arranged on a pipeline connecting the discharge end of the temporary storage tank (12) with the feed end of the tubular reactor (2).
4. The device for continuously producing mercaptopropionic acid according to claim 1, further comprising a hydrochloric acid tank (13) for feeding the first acidification kettle (3), wherein a second metering pump (14) is arranged on a pipeline connecting the hydrochloric acid tank (13) and the first acidification kettle (3).
5. The device for continuously producing mercaptopropionic acid according to claim 1, further comprising a dichloroethane storage tank (19) for feeding a material to the storage tank (7), wherein a third metering pump (18) is arranged on a pipeline connecting the storage tank (7) with the dichloroethane storage tank (19).
6. The apparatus for the continuous production of mercaptopropionic acid according to any one of claims 1 to 5, wherein a fourth metering pump (17) is provided on a pipe connecting the storage tank (7) and the extraction column (5).
7. An installation for the continuous production of mercaptopropionic acid according to any one of claims 1 to 5, wherein the extraction column (5) leads waste water to a waste water tank (16) through a waste water pipe.
8. The apparatus for the continuous production of mercaptopropionic acid according to any one of claims 1 to 5, wherein the concentration tank (8) employs a thin film evaporator or a distillation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920945605.6U CN210150998U (en) | 2019-06-22 | 2019-06-22 | Device for continuously producing mercaptopropionic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920945605.6U CN210150998U (en) | 2019-06-22 | 2019-06-22 | Device for continuously producing mercaptopropionic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210150998U true CN210150998U (en) | 2020-03-17 |
Family
ID=69763771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920945605.6U Active CN210150998U (en) | 2019-06-22 | 2019-06-22 | Device for continuously producing mercaptopropionic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210150998U (en) |
-
2019
- 2019-06-22 CN CN201920945605.6U patent/CN210150998U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109336271A (en) | Depressurize the biogas slurry ammonia nitrogen film recovery system and method for auxiliary | |
| CN106430506B (en) | Struvite fluidization crystallization device | |
| CN210150998U (en) | Device for continuously producing mercaptopropionic acid | |
| CN210065199U (en) | Evaporative crystallization device of high-purity anhydrous sodium sulphate | |
| CN210915389U (en) | Continuous rectification recovery processing device for paranitrobenzoic acid nitric acid mother liquor | |
| CN212712783U (en) | Titanium tetrachloride refining production system | |
| CN217323388U (en) | Phosphorus recovery system | |
| CN206051895U (en) | A kind of continuous neutralization device of LOMAR PWA EINECS 246-676-2 or derivatives thereof | |
| CN107686193A (en) | A kind of method for handling high-concentration sulfuric acid ammonium waste water | |
| CN217120288U (en) | Continuous preparation production system for acyl chloride products | |
| CN111547798A (en) | Waste water MVR evaporimeter is smelted to gold | |
| CN202078806U (en) | Cooling water recovery sedimentation tank | |
| CN110372490A (en) | Utilize the method for brewing wastewater continuous production medium chained carboxylic acids | |
| CN216472404U (en) | Fluidized bed phosphorus recovery reactor | |
| CN203612970U (en) | Device for reclaiming industrial liquid ammonia from waste ammonia water during ultra pure ammonia production process | |
| CN219507797U (en) | Biogas treatment device | |
| CN213347816U (en) | Preheating type distillation recovery device | |
| CN218653049U (en) | Automobile-used urea production system | |
| CN109133232A (en) | A kind of recovery system and its recovery method of highly concentrated formaldehyde solution | |
| CN219689367U (en) | Aminoacetic acid effluent treatment plant | |
| CN211097621U (en) | Sodium nitrate's circulative cooling crystallization device | |
| CN214808504U (en) | Dimethylamine distillation system | |
| CN203021485U (en) | System for continuously producing ethyl butyrate | |
| CN220877759U (en) | Evaporation stoste temperature-raising system | |
| CN202400879U (en) | Ammonia nitrogen wastewater treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230414 Address after: Room 102, 1st Floor, No. 5 Lane 3399, Kangxin Road, Pudong New Area, Shanghai, 200000 Patentee after: Shanghai Xuliu Chemical Technology Co.,Ltd. Address before: 201512 block F, room 237, unit 4, building 1, No. 688, Qiushi Road, Jinshanwei Town, Jinshan District, Shanghai Patentee before: SHANGHAI LEAN CHEMICAL Co.,Ltd. |