CN221061927U - Primary separation device for malonic acid preparation - Google Patents
Primary separation device for malonic acid preparation Download PDFInfo
- Publication number
- CN221061927U CN221061927U CN202323064415.9U CN202323064415U CN221061927U CN 221061927 U CN221061927 U CN 221061927U CN 202323064415 U CN202323064415 U CN 202323064415U CN 221061927 U CN221061927 U CN 221061927U
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- CN
- China
- Prior art keywords
- filter
- vat
- malonic acid
- primary
- distributor
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- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000000926 separation method Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000243 solution Substances 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000011259 mixed solution Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000543 intermediate Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- FTOAOBMCPZCFFF-UHFFFAOYSA-N 5,5-diethylbarbituric acid Chemical compound CCC1(CC)C(=O)NC(=O)NC1=O FTOAOBMCPZCFFF-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- LXNHXLLTXMVWPM-UHFFFAOYSA-N pyridoxine Chemical compound CC1=NC=C(CO)C(CO)=C1O LXNHXLLTXMVWPM-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- AUNGANRZJHBGPY-UHFFFAOYSA-N D-Lyxoflavin Natural products OCC(O)C(O)C(O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-UHFFFAOYSA-N 0.000 description 1
- AUNGANRZJHBGPY-SCRDCRAPSA-N Riboflavin Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-SCRDCRAPSA-N 0.000 description 1
- 229930003451 Vitamin B1 Natural products 0.000 description 1
- 229930003471 Vitamin B2 Natural products 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229940024606 amino acid Drugs 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 229960002319 barbital Drugs 0.000 description 1
- HNYOPLTXPVRDBG-UHFFFAOYSA-N barbituric acid Chemical class O=C1CC(=O)NC(=O)N1 HNYOPLTXPVRDBG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- UFHLMYOGRXOCSL-UHFFFAOYSA-N isoprothiolane Chemical compound CC(C)OC(=O)C(C(=O)OC(C)C)=C1SCCS1 UFHLMYOGRXOCSL-UHFFFAOYSA-N 0.000 description 1
- HWYHZTIRURJOHG-UHFFFAOYSA-N luminol Chemical compound O=C1NNC(=O)C2=C1C(N)=CC=C2 HWYHZTIRURJOHG-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012450 pharmaceutical intermediate Substances 0.000 description 1
- 229960002895 phenylbutazone Drugs 0.000 description 1
- VYMDGNCVAMGZFE-UHFFFAOYSA-N phenylbutazonum Chemical compound O=C1C(CCCC)C(=O)N(C=2C=CC=CC=2)N1C1=CC=CC=C1 VYMDGNCVAMGZFE-UHFFFAOYSA-N 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- RADKZDMFGJYCBB-UHFFFAOYSA-N pyridoxal hydrochloride Natural products CC1=NC=C(CO)C(C=O)=C1O RADKZDMFGJYCBB-UHFFFAOYSA-N 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229960002477 riboflavin Drugs 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 229960003495 thiamine Drugs 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 235000010374 vitamin B1 Nutrition 0.000 description 1
- 239000011691 vitamin B1 Substances 0.000 description 1
- 235000019164 vitamin B2 Nutrition 0.000 description 1
- 239000011716 vitamin B2 Substances 0.000 description 1
- 235000019158 vitamin B6 Nutrition 0.000 description 1
- 239000011726 vitamin B6 Substances 0.000 description 1
- 229940011671 vitamin b6 Drugs 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to the technical field of chemical industry, in particular to a primary separation device for preparing malonic acid, which is characterized in that a reacted mixed solution enters a filter vat from a reaction tower through a distributor, malonic acid, alcohol solution and other particulate impurities are separated under the separation of the distributor, the malonic acid, the alcohol solution and the particulate impurities enter an upper vat body of the filter vat to be precipitated, the alcohol solution and the other particulate impurities are filtered from a primary filter box and enter a filter vat, then are gradually filtered through a multi-stage filter plate of the filter vat, finally enter a lower vat body from the bottom of the filter vat, the malonic acid, the alcohol solution and the other impurities in the mixed solution generated by the reaction are effectively separated, and the filtered impurities in each stage of the filter plate and the impurities in the upper vat body can be analyzed and sampled, so that the preparation process is further optimized.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to a primary separation device for preparing malonic acid.
Background
Malonic acid is mainly used as a medical intermediate, and is also used as a spice, an adhesive, a resin additive, an electroplating polishing agent and the like; the malonic acid is used as a complexing agent, is also used for preparing the barbituric salt and the like, and the malonic acid is an intermediate of a bactericide isoprothiolane and an intermediate of a plant growth regulator, namely, the ripe ester. Malonic acid and its esters are mainly used in perfumery, adhesives, resin additives, pharmaceutical intermediates, electropolishing agents, explosion control agents, thermowelding fluxing additives and the like. Is used in the pharmaceutical industry for the production of luminol, barbital, vitamin B1, vitamin B2, vitamin B6, phenylbutazone, amino acids, etc.
In the process of preparing malonic acid, raw materials undergo hydrolysis reaction under the action of a catalyst to generate malonic acid and alcohol, the malonic acid leaves a reaction section and moves to the lower part of a tower under the separation action of a distributor and finally enters a reboiler, in the process, when a mixed solution generated by the reaction enters the distributor, the distributor separates and discharges the malonic acid to the reboiler, and meanwhile, the distributor discharges an alcohol solution and other particulate impurities, so that the reacted mixture is required to be subjected to preliminary separation, the impurities and the alcohol solution are separated from the malonic acid, and meanwhile, the alcohol solution and the impurities are required to be separated, extracted and analyzed, so that the malonic acid preparation reaction is further optimized.
Disclosure of utility model
The utility model aims to provide a primary separation device for preparing malonic acid, which is used for separating a mixed solution after hydrolysis reaction is generated during preparing malonic acid, is arranged between a reaction tower and a reboiler and is communicated with the reaction tower and the reboiler, and comprises a distributor, wherein the distributor is used for separating malonic acid from an alcohol solution and other particulate impurities in the mixed solution generated by reaction and discharging the malonic acid to the reboiler, and a filter vat for separating the particulate impurities from the alcohol solution, the distributor is arranged at the top of the filter vat, the distributor is communicated with a liquid outlet pipeline of the reaction tower, the top of the filter vat is communicated with the reboiler, and a detachable filter bucket is arranged in the filter vat.
Further, the filter vat includes staving and lower staving, goes up the staving and connects soon with the distributor, and lower staving connects soon with the lower extreme of last staving, and the filter pulp is installed in the bottom of last staving, goes up between staving and the lower staving via the filter pulp intercommunication.
Further, the filter funnel is positioned in the lower barrel body and is connected with the bottom of the upper barrel body in a rotating way, a primary filter box is arranged in the center of the barrel bottom of the upper barrel body, and a liquid outlet filter hole of the primary filter box is opposite to a funnel hole of the filter funnel.
Further, the primary filter box is connected to the bottom of the upper barrel body in a clamping way, the clamping groove is formed in the center of the bottom of the upper barrel body, and a filter hole communicated with a liquid outlet of the primary filter box is also formed in the clamping groove.
Further, a plurality of filter plates are arranged in the filter bucket from top to bottom at intervals.
Further, the plurality of filter plates arranged at intervals from top to bottom are provided with filter holes, and the pore diameters of the filter holes on each filter plate from top to bottom are sequentially reduced.
The utility model has the beneficial effects that: according to the utility model, the reacted mixed solution enters the filter vat from the reaction tower through the distributor, malonic acid, alcohol solution and other particulate impurities are separated under the separation of the distributor, malonic acid enters the reboiler after being separated from the distributor, the alcohol solution and the particulate impurities enter the upper vat body of the filter vat to be precipitated, the alcohol solution and other particulate impurities are filtered by the primary filter box and enter the filter vat, then are gradually filtered by the multi-stage filter plate of the filter vat, finally enter the lower vat body from the bottom of the filter vat, malonic acid, the alcohol solution and other impurities in the mixed solution generated by the reaction are effectively separated, and the impurities filtered by the filter plate in the filter vat and the impurities in the upper vat body can be analyzed and sampled, so that the preparation process is further optimized.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments of the present utility model will be briefly described below. It is evident that the drawings described below are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a partial cross-sectional view of a three-dimensional structure of the present utility model.
Fig. 3 is a cross-sectional view showing a perspective structure of a filter cartridge according to the present utility model.
In the figure: 1-a distributor; 2, a filter vat; 3-a filter bucket; 2 a-an upper barrel body; 2 b-a lower barrel body; 2 c-a primary filter box; 2c 1-a liquid outlet; 2 d-a clamping groove; 2 e-filtering holes; 3 a-filter plate.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.
In the description of the present utility model, unless explicitly stated and limited otherwise, the term "coupled" or the like should be interpreted broadly, as it may be fixedly coupled, detachably coupled, or integrally formed, as indicating the relationship of components; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two parts or interaction relationship between the two parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3, the embodiment of the present utility model is as follows:
The utility model provides a primary separation device for malonic acid preparation for the separation of mixed solution after hydrolysis reaction generates when malonic acid preparation, it installs between reaction tower and reboiler and communicates with the two, including distributor 1, distribution 1 is arranged in with malonic acid in the mixed solution that the reaction produced and alcohol solution and other particulate impurity separation and discharge malonic acid to the reboiler, and be used for separating alcohol solution filter particulate impurity's filter vat 2, distributor 1 installs at the top of filter vat 2, distributor 1 communicates with the play liquid pipeline of reaction tower, the top and the reboiler intercommunication of filter vat 2, install detachable filter funnel 3 in the filter vat 2.
The filter vat 2 includes a top vat 2a and a bottom vat 2b, the top vat 2a is screwed with the distributor 1, the bottom vat 2b is screwed with the bottom end of the top vat 2a, the filter bucket 3 is installed at the bottom of the top vat 2a, and the top vat 2a is communicated with the bottom vat 2b via the filter bucket 3.
The filter funnel 3 is positioned in the lower barrel body 2b and is screwed with the bottom of the upper barrel body 2a, the center of the barrel bottom of the upper barrel body 2a is provided with a primary filter box 2c, and a liquid outlet filter hole 2c1 of the primary filter box 2c is opposite to a funnel hole of the filter funnel 3.
The primary filter box 2c is clamped at the bottom of the upper barrel body 2a through a clamping groove 2d, the clamping groove 2d is arranged at the bottom center of the upper barrel body 2a, and a filter hole 2e communicated with a liquid outlet 2c1 of the primary filter box 2c is also arranged in the clamping groove 2 d.
In order to facilitate cleaning the upper barrel body 2a and the filter bucket 3, the primary filter box 2c is prevented from being taken out, and the impurities filtered by precipitation fall into the filter bucket 3, and the filter holes 2e are also formed in the bottom of the upper barrel body 2a, so that the filter residues in the disassembly process of the upper barrel body 2a can be effectively prevented from entering the lower barrel body 2b.
A plurality of filter plates 3a are arranged in the filter bucket 3 from top to bottom at intervals.
The filter plates 3a which are arranged at intervals from top to bottom are respectively provided with a filter hole 2e, and the pore diameters of the filter holes 2e on each filter plate 3a from top to bottom are sequentially reduced. The impurities are separated through the filter funnel 3 and the multi-section filter plate 3a, so that the impurities on each filter plate 3a are sampled and analyzed, the quality control and analysis in the malonic acid preparation process are facilitated, and the preparation process is further improved.
The reacted mixed solution enters a filter vat 2 from a reaction tower through a distributor 1, malonic acid is separated from alcohol solution and other particulate impurities under the separation of the distributor 1, the malonic acid enters a reboiler after being separated, the alcohol solution and the particulate impurities enter an upper vat body 2a of the filter vat 2 for precipitation, the alcohol solution and the particulate impurities are filtered by a primary filter box 2c and enter a filter bucket 3, then are gradually filtered by a multi-stage filter plate 3a of the filter bucket 3, and finally enter a lower vat body 2b from the bottom of the filter bucket 3.
It should be understood that the above description is only illustrative of the preferred embodiments of the present utility model and the technical principles employed. It will be apparent to those skilled in the art that various modifications, equivalents, variations, and the like can be made to the present utility model. Such variations are intended to be within the scope of the utility model without departing from the spirit thereof. In addition, some terms used in the description and claims of the present utility model are not limiting, but are merely for convenience of description.
Claims (6)
1. The utility model provides a primary separation device for malonic acid preparation for the separation of mixed solution after hydrolysis reaction generates when malonic acid preparation, its installation is between reaction tower and reboiler and with the two intercommunication, a serial communication port, including distributor (1), distributor (1) are arranged in with malonic acid in the mixed solution that the reaction produced and alcohol solution and other particulate impurity separation and discharge malonic acid to the reboiler, and be used for separating filter vat (2) of alcohol solution filtration particulate impurity, the top at filter vat (2) is installed to distributor (1), the drain line intercommunication of distributor (1) and reaction tower, the top and the reboiler intercommunication of filter vat (2), install in filter vat (2) and dismantle filter vat (3).
2. The primary separation device for malonic acid preparation according to claim 1, wherein the filter vat (2) comprises an upper vat body (2 a) and a lower vat body (2 b), the upper vat body (2 a) is screwed with the distributor (1), the lower vat body (2 b) is screwed with the lower end of the upper vat body (2 a), the filter funnel (3) is arranged at the bottom of the upper vat body (2 a), and the upper vat body (2 a) is communicated with the lower vat body (2 b) through the filter funnel (3).
3. The primary separation device for malonic acid preparation according to claim 2, wherein the filter funnel (3) is positioned in the lower barrel body (2 b) and is screwed with the bottom of the upper barrel body (2 a), a primary filter box (2 c) is arranged in the center of the barrel bottom of the upper barrel body (2 a), and a liquid outlet filter hole (2 c 1) of the primary filter box (2 c) is opposite to a funnel hole of the filter funnel (3).
4. A primary separation device for preparing malonic acid according to claim 3, wherein the primary filter box (2 c) is clamped at the bottom of the upper barrel body (2 a) through a clamping groove (2 d), the clamping groove (2 d) is arranged at the center of the bottom of the upper barrel body (2 a), and a filter hole (2 e) communicated with a liquid outlet (2 c 1) of the primary filter box (2 c) is also arranged in the clamping groove (2 d).
5. The primary separation device for malonic acid production according to claim 4, wherein a plurality of filter plates (3 a) are provided in the filter bucket (3) at intervals from top to bottom.
6. The primary separator for malonic acid production according to claim 5, wherein the plurality of filter plates (3 a) are each provided with a filter hole (2 e) at a spacing from top to bottom, and the pore diameters of the filter holes (2 e) in the respective filter plates (3 a) from top to bottom are sequentially decreased.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149431 | 2023-05-15 | ||
| CN2023211494315 | 2023-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221061927U true CN221061927U (en) | 2024-06-04 |
Family
ID=91260561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323064415.9U Active CN221061927U (en) | 2023-05-15 | 2023-11-14 | Primary separation device for malonic acid preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221061927U (en) |
-
2023
- 2023-11-14 CN CN202323064415.9U patent/CN221061927U/en active Active
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