CN215855854U - Industrial synthesis and separation continuous production device of furanone - Google Patents
Industrial synthesis and separation continuous production device of furanone Download PDFInfo
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- CN215855854U CN215855854U CN202022329687.7U CN202022329687U CN215855854U CN 215855854 U CN215855854 U CN 215855854U CN 202022329687 U CN202022329687 U CN 202022329687U CN 215855854 U CN215855854 U CN 215855854U
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Abstract
The utility model discloses a furanone industrialized synthesis and separation continuous production device, which comprises a first-stage reaction structure and a second-stage reaction structure, wherein the first-stage reaction structure comprises an intermediate reaction kettle and a first filter connected with the bottom of the intermediate reaction kettle, a filtrate containing cavity is arranged at the bottom of the first filter, the filtrate containing cavity is communicated with a first extraction device through a material conveying pipeline, the first extraction device is respectively communicated with a waste liquid device and a first concentration device, the first concentration device is connected with a rectification device, the rectification device is communicated with a collection tank for collecting rectification components, and the collection tank is communicated with the second-stage reaction structure through a pipeline. The device overall structure is comparatively compact, cooperates the technological method to implement, when having guaranteed the productivity, realizes efficiency promotion, greatly reduced process dispersion, material handling scheduling problem.
Description
Technical Field
The utility model relates to the field of food flavors, in particular to a continuous production device for industrial synthesis and separation of furanone.
Background
The furanone exists in food, tobacco and beverage in trace amount, has obvious aroma enhancement modification effect when the aroma threshold is 0.04ppb, and is widely used as an aroma enhancer for food, tobacco and beverage; although furanone is widely present in natural products, it cannot meet daily requirements due to its low content, and most of furanones are synthetic products used in the food industry.
The furanone is easy to oxidize in air, and the commercial product is generally stored in a nitrogen-filled or propylene glycol diluted mode, so that the furanone has strong fragrance. The current synthesis process is more, more complex and poorer in industrial continuity. For example, 2-butenenitrile and ethyl lactate are used as raw materials and condensed and cyclized under an alkaline condition to obtain an intermediate, the intermediate is reacted with KHSO4 to remove HCN to obtain furanone, the comprehensive yield is 23-35%, HCN is generated in the reaction process, and the HCN is extremely toxic and needs a complex post-treatment process, so that the systematic industrialization is complex and tedious and is difficult to carry out.
For industrial production, firstly, the reaction conditions are simple and easy to implement, the treatment after the reaction is simple, the method is suitable for large scale, and the method has less waste, is easy to treat and can be recycled; secondly, the layout can be carried out continuously, the space occupation is small, and the influence on the whole process progress and efficiency caused by the complexity of a single process is avoided.
Therefore, enterprise engineers design a continuous production systematic device from production to purification of furanone according to process characteristics, and efficiency is improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a continuous production device for industrial synthesis and separation of furanone, which greatly improves the production process of furanone.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the device comprises a first-stage reaction structure and a second-stage reaction structure, wherein the first-stage reaction structure comprises an intermediate reaction kettle and a first filter connected with the bottom of the intermediate reaction kettle, a filtrate cavity is arranged at the bottom of the first filter, the filtrate cavity is communicated with a first extraction device through a material conveying pipeline, the first extraction device is respectively communicated with a waste liquid device and a first concentration device, the first concentration device is connected with a rectification device, the rectification device is communicated with a collection tank for collecting rectification components, and the collection tank is communicated with the second-stage reaction structure through a pipeline; the second section of reaction structure comprises a cyclization reaction kettle, the cyclization reaction kettle is communicated with a second concentration device, the second concentration device is connected with a second filter, the second filter has the same structure as the first filter, and a filtrate cavity of the second filter is communicated with the first crystallization device.
Furthermore, a first material inlet for inputting liquid materials and a second material inlet for placing solid materials are formed in the upper part of the intermediate reaction kettle, and the first material inlet is connected with a first liquid material conveying pump; the lower part of the intermediate reaction kettle is provided with a first discharge hole for outputting materials to a first filter, and the first discharge hole is provided with a discharge valve.
Furthermore, the first filter is provided with a filter plate for filtering, a top cover is arranged at the upper part of the filter plate, a through hole for feeding is arranged on the top cover, and the through hole is communicated with the first discharge hole; the filter plate is detachably connected with the filter body, a suction filter nozzle for vacuum suction filtration is arranged at the lower end of the filter plate, and the suction filter nozzle is connected with a vacuum pump.
Furthermore, a sight glass for observing layering is arranged at the bottom of the first extraction device, and an ultrasonic device for demulsification is arranged on one side of the sight glass.
Furthermore, the extraction device is communicated with the first concentration device through a pipeline, a second material conveying pump for guiding the liquid containing the intermediate to the first concentration device is arranged on the pipeline, the first concentration device is communicated with the rectification device through a pipeline, and a third material conveying pump is arranged on the connected pipeline.
Furthermore, the collecting tank is connected with a third material inlet arranged on the cyclization reaction kettle through a pipeline, a fourth material conveying pump is arranged on the pipeline, and a fourth material inlet is also arranged on the cyclization reaction kettle.
Further, the cyclization reaction kettle is provided with a jacket for heating or cooling, and the jacket is provided with a heat-conducting or cooling medium inlet and outlet.
Further, the second concentration device is provided with a condensation device, and the lower end of the condensation device is connected with a solvent recovery tank.
The utility model has the beneficial effects that:
the device for industrially synthesizing and separating the furanone continuously provided by the utility model realizes industrial continuous production and improves the production efficiency because the furanone continuously communicates with each other, has a compact integral structure, is matched with a process method to implement, ensures the yield, improves the efficiency, and greatly reduces the problems of dispersed working procedures, material handling and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention.
In the figure: 1-a first stage reaction structure; 11-intermediate reaction vessel; 111-a first material inlet; 112-second material inlet; 113-a first delivery pump; 114-a first discharge port; 115-a discharge valve; 12-a first filter; 121-a filter plate; 122-a top cover; 124-filter tip extraction; 123-a filtrate volume; 14-a first extraction unit; 141-sight glass; 142-an ultrasonic device; 15-a waste liquor device; 16-a first concentrating device; 161-a second delivery pump; 17-a rectification unit; 171-a third feed delivery pump; 18-a collection tank; 2-a second stage reaction structure; 21-cyclization reaction; 211-third material inlet; 212-a fourth feed delivery pump; 213-a fourth material inlet; 214-jacket; 22-a second concentrating device; 221-a condensing unit; 222-a recovery tank; 23-a second filter; 25-a first crystallization device; 24-a third filter; and 3-pipeline.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
As shown in figure 1 of the drawings, in which,
the device comprises a first-stage reaction structure 1 and a second-stage reaction structure 2, wherein the first-stage reaction structure 1 comprises an intermediate reaction kettle 11 and a first filter 12 connected with the bottom of the intermediate reaction kettle 11, a filtrate containing cavity 13 is arranged at the bottom of the first filter 12, the filtrate containing cavity 13 is communicated with a first extraction device 14 through a pipeline 3 for material conveying, the first extraction device 14 is respectively communicated with a waste liquid device 15 and a first concentration device 16, the first concentration device 16 is connected with a rectification device 17, the rectification device 17 is communicated with a collection tank 18 for collecting rectification components, and the collection tank 18 is communicated with the second-stage reaction structure 2 through the pipeline 3; the second-stage reaction structure 2 comprises a cyclization reaction kettle 21, wherein the cyclization reaction kettle 21 is communicated with a second concentration device 22, the second concentration device 22 is connected with a second filter 23, the second filter 23 has the same structure as the first filter 12, and a filtrate containing cavity 231 of the second filter 23 is communicated with a first crystallization device 231.
Specifically, the upper part of the intermediate reaction kettle 11 is provided with a first material inlet 111 for inputting liquid materials and a second material inlet 112 for placing solid materials, and the first material inlet 111 is connected with a first material conveying pump 113; a first discharge port 114 for outputting the material to the first filter 12 is provided at the lower part of the intermediate reaction kettle 11, and a discharge valve 115 is provided at the first discharge port 114.
Specifically, the first filter 12 is provided with a filter plate 121 for filtering, a top cover 122 is arranged on the upper part of the filter plate 121, a through hole 123 for feeding is arranged on the top cover 122, and the through hole 123 is communicated with the first discharge hole 114; the filter plate 121 is detachably connected with the filter body, a suction filter nozzle 124 for vacuum suction filtration is arranged at the lower end of the filter plate 121, and the suction filter nozzle 124 is connected with a vacuum pump.
Specifically, the bottom of the first extraction device 14 is provided with a sight glass 141 for observing layering, and the outside of the sight glass 141 is provided with an ultrasonic device 142 for demulsification.
Further, the first extraction apparatus 13 is connected to the first concentration apparatus 16 via a pipe 3, a second feed pump 161 for introducing the liquid containing the intermediates to the first concentration apparatus 16 is provided on the pipe 3, the first concentration apparatus 16 is connected to the rectifying apparatus 17 via the pipe 3, and a third feed pump 171 is provided on the pipe 3 connected thereto.
In this embodiment, the collecting tank 18 is connected to the cyclization reactor 21 through the pipeline 3 and a third material inlet 211, the pipeline 3 is provided with a fourth material delivery pump 212, and the cyclization reactor 21 is further provided with a fourth material inlet 213.
Specifically, the cyclization reaction vessel 21 is provided with a jacket 214 for heating or cooling, which is provided with a heat-conducting or cooling medium inlet 215 and a medium outlet 216.
Specifically, the second concentrating device 22 is provided with a condensing device 221, and the lower end of the condensing device 221 is connected with a solvent recovery tank 222 which is communicated with the cyclization reaction kettle through a pipeline.
Specifically, the bottom of the first crystallization device 25 is provided with a third filter 24 for filtering furanone.
In another embodiment, a second crystallization device is further provided on the side of the first crystallization device 25 for further recrystallization to increase the furanone content.
Generally, the crystallization apparatus is provided with a temperature-lowering and temperature-raising auxiliary structure for assisting precipitation and dissolution.
The device is suitable for the first-stage reaction which takes methylglyoxal, zinc powder and the like as raw materials to add NaH2Second stage reaction of PO4 with intermediates.
It is emphasized, however, that the above-described process is by way of example only and that the apparatus is not limited to use in the above-described process.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The device is characterized by comprising a first-stage reaction structure and a second-stage reaction structure, wherein the first-stage reaction structure comprises an intermediate reaction kettle and a first filter connected with the bottom of the intermediate reaction kettle, a filtrate containing cavity is arranged at the bottom of the first filter, the filtrate containing cavity is communicated with a first extraction device through a material conveying pipeline, the first extraction device is respectively communicated with a waste liquid device and a first concentration device, the first concentration device is connected with a rectification device, the rectification device is communicated with a collection tank for collecting rectification components, and the collection tank is communicated with the second-stage reaction structure through a pipeline; the second section of reaction structure comprises a cyclization reaction kettle, the cyclization reaction kettle is communicated with a second concentration device, the second concentration device is connected with a second filter, the second filter has the same structure as the first filter, and a filtrate cavity of the second filter is communicated with the first crystallization device.
2. The apparatus for the continuous production of furanone through industrial synthesis and separation as claimed in claim 1, wherein the intermediate reaction vessel is provided at the upper part thereof with a first material inlet for feeding liquid and a second material inlet for placing solid, the first material inlet being connected to a first liquid feed pump; the lower part of the intermediate reaction kettle is provided with a first discharge hole for outputting materials to a first filter, and the first discharge hole is provided with a discharge valve.
3. The apparatus for the continuous production of furanone through industrial synthesis and separation as claimed in claim 2, wherein the first filter is provided with a filter plate for filtration, the upper part of the filter plate is provided with a top cover, the top cover is provided with a through hole for feeding, and the through hole is communicated with the first discharge hole; the filter plate is detachably connected with the filter body, a suction filter nozzle for vacuum suction filtration is arranged at the lower end of the filter plate, and the suction filter nozzle is connected with a vacuum pump.
4. The continuous production device for the industrial synthesis and separation of furanone according to claim 3, wherein the bottom of the first extraction device is provided with a sight glass for observing layering, and one side of the sight glass is provided with an ultrasonic device for demulsification.
5. The apparatus for the continuous production of furanone through industrial synthesis and separation according to claim 4, wherein the extraction apparatus is connected to the first concentration apparatus via a pipe, and a second feed pump for introducing the liquid containing the intermediates to the first concentration apparatus is provided on the pipe, and the first concentration apparatus is connected to the rectification apparatus via a pipe, and a third feed pump is provided on the pipe.
6. The apparatus for the continuous production of furanone through industrial synthesis and separation as claimed in claim 5, wherein the collection tank is connected to the third material inlet of the cyclization reactor through a pipeline, the pipeline is provided with a fourth material delivery pump, and the cyclization reactor is further provided with a fourth material inlet.
7. The continuous production apparatus for the industrial synthesis and separation of furanones as claimed in claim 6, wherein the cyclization reaction vessel is provided with a jacket for heating or cooling, the jacket being provided with an inlet and an outlet for heat transfer or cooling medium.
8. The apparatus for the continuous production of furanone through industrial synthesis and separation as claimed in claim 7, wherein the second concentrating device is provided with a condensing device, the lower end of the condensing device is connected with a solvent recovery tank, and the solvent recovery tank is communicated with the cyclization reaction kettle through a pipeline.
9. The apparatus for the continuous production of furanone through industrial synthesis and separation as claimed in claim 8, wherein the bottom of the first crystallization device is provided with a third filter for filtering furanone.
10. The apparatus for the continuous production of furanone through industrial synthesis and separation as claimed in claim 8, wherein a second crystallization device is further provided on one side of the first crystallization device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022329687.7U CN215855854U (en) | 2020-10-19 | 2020-10-19 | Industrial synthesis and separation continuous production device of furanone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022329687.7U CN215855854U (en) | 2020-10-19 | 2020-10-19 | Industrial synthesis and separation continuous production device of furanone |
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| Publication Number | Publication Date |
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| CN215855854U true CN215855854U (en) | 2022-02-18 |
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| CN202022329687.7U Active CN215855854U (en) | 2020-10-19 | 2020-10-19 | Industrial synthesis and separation continuous production device of furanone |
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| CN (1) | CN215855854U (en) |
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