CN217940131U - Device for synthesizing bis (2-methoxypropoxy) methane - Google Patents
Device for synthesizing bis (2-methoxypropoxy) methane Download PDFInfo
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- CN217940131U CN217940131U CN202221724717.7U CN202221724717U CN217940131U CN 217940131 U CN217940131 U CN 217940131U CN 202221724717 U CN202221724717 U CN 202221724717U CN 217940131 U CN217940131 U CN 217940131U
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Abstract
The utility model relates to an organic matter synthesis equipment technical field, concretely relates to device of synthetic two (2-methoxy propoxy) methane, including reation kettle, the setting kettle, the neutralization kettle, the rectifying still, first filter the jar, the jar is filtered to the second, the vacuum pump, reation kettle's export and the entry linkage of setting kettle, the export of setting kettle with respectively with the entry of neutralization kettle and the entry linkage of first filter jar, the export of first filter jar and the entry linkage of neutralization kettle, the export of neutralization kettle and the entry linkage of second filter jar and rectifying still, the vacuum pump is respectively through vacuum pipe and reation kettle, the setting kettle, the neutralization kettle, the rectifying still is connected, vacuum pipe and reation kettle, the setting kettle, the neutralization kettle, the rectifying still is connected and all is equipped with the valve, this kind of device of synthetic two (2-methoxy propoxy) methane, the synthesizer of having solved current two (2-methoxy propoxy) methane is great to environmental pollution and human harm, and high cost, the problem of unable scale production in succession.
Description
Technical Field
The utility model relates to an organic matter synthesis equipment technical field, concretely relates to device of synthetic two (2-methoxy propoxy) methane.
Background
The bis (2-methoxy propoxy) methane is colorless, transparent, inflammable and volatile liquid, has odor similar to ether, is easy to dissolve in most organic solvents such as alcohol, ether and the like, and has better stability. The catalyst has the advantages of moderate boiling point, low toxicity and the like, and can be used as a solvent in organic synthesis, a solvent in a battery, a fuel additive and an organic reaction reagent.
The bis (2-methoxypropoxy) methane is safer to use and easier to handle. The benzene-containing gasoline can be used as a fuel additive to be added into fuel to reduce the release amount of CO, and can be used as a diluent of raw materials such as paint to reduce the dosage of benzene solvents, thereby being beneficial to improving the working environment of workers. As a novel environment-friendly solvent, bis (2-methoxypropoxy) methane plays an important role in future industrial production.
At present, the industrial production of bis (2-methoxy propoxy) methane mainly uses neutral formalin buffer solution to react with propylene glycol methyl ether, and is also prepared by using diiodomethane to react with propylene glycol methyl ether, or uses methoxy propoxy methyl chloride to react with propylene glycol methyl ether to prepare bis (2-methoxy propoxy) methane, but the existing synthesis device has serious environmental pollution and human body damage, high cost and more troublesome post-treatment.
In view of the above-mentioned drawbacks, the inventor of the present invention has finally obtained the present invention through long-time research and practice.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of the prior synthesis device of bis (2-methoxy propoxy) methane, such as large environmental pollution and human body damage, high cost and continuous large-scale production, and provides a device for synthesizing bis (2-methoxy propoxy) methane.
In order to achieve the purpose, the utility model discloses a device for synthesizing bis (2-methoxypropoxy) methane, including reation kettle, settling vessel, neutralization kettle, rectifying still, first filter tank, second filter tank, vacuum pump, reation kettle's export with the entry linkage of settling vessel, settling vessel's export with respectively with the entry linkage of neutralization kettle and first filter tank, the export of first filter tank with the entry linkage of neutralization kettle, the export of neutralization kettle and the export of second filter tank with the entry linkage of rectifying still, the vacuum pump respectively through vacuum pipeline with reation kettle, settling vessel, neutralization kettle, vacuum rectifying still connect, the pipeline with reation kettle, settling vessel, neutralization kettle, rectifying still connect all be equipped with the valve; the material only can be strangely reacted in the reaction kettle, enters the settling kettle for settling, then enters the neutralization kettle for neutralization, and finally enters the rectification kettle for rectification and purification.
The outlet of the settling kettle is divided into a first outlet and a second outlet, the first outlet is positioned at the upper part of the settling kettle and is connected with the inlet of the neutralizing kettle, and the second outlet is positioned at the lower part of the settling kettle and is connected with the inlet of the first filtering tank. The first outlet is used for sending supernatant fluid after the sedimentation of the sedimentation kettle into the neutralization kettle, and the lower-layer suspended matter enters the first filtering tank to be filtered and then sends reaction liquid obtained by filtering into the neutralization kettle.
The outlet of the neutralization kettle is divided into a third outlet and a fourth outlet, the third outlet is positioned on the upper part of the neutralization kettle and is connected with the inlet of the rectification kettle, and the fourth outlet is positioned on the lower part of the neutralization kettle and is connected with the inlet of the second filter tank. And the third outlet is used for sending the neutralized supernatant liquid of the neutralization kettle into the rectifying kettle, and the filtered reaction liquid is sent into the rectifying kettle after the lower-layer suspended matters are filtered in the second filtering tank.
The upper end of the rectifying still is connected with a rectifying tower, the outlet of the rectifying tower is connected with the inlet of a condenser, and the outlet of the condenser is connected with a first liquid receiving tank, a second liquid receiving tank and a third liquid receiving tank.
The reactor is characterized in that a liquid feeding pipeline, a solid feeding port, a stirrer and a heating interlayer are arranged on the reactor, the liquid feeding pipeline and the solid feeding port are both positioned on the upper portion of the reactor, the stirrer is a glass lining anchor type stirrer, and the heating interlayer is used for heating the reactor.
The settling kettle, the neutralizing kettle, the first filtering tank and the second filtering tank are all provided with emptying valves, and the first liquid receiving tank, the second liquid receiving tank and the third liquid receiving tank are used for collecting condensed liquids with different boiling ranges respectively.
The first filtration jar all is equipped with the filtration frame in filtering jar and the second, be equipped with the filter cloth on the filtration frame.
The condenser is provided with a vacuum tube which is used for providing vacuum conditions for condensation.
The condenser is a shell and tube condenser, and a condensed water inlet and a condensed water outlet are arranged on the condenser.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a device of synthetic two (2-methoxy propoxy) methane can the in service behavior of each production link of rational distribution, is not influenced between each link to realize semi-continuous production, not only improve production efficiency greatly, but also recoverable recycle solid catalyst, little to environmental pollution obtains the product of high purity, has fine economic benefits.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connecting structure of a rectifying tower and a condenser;
fig. 3 is a schematic structural diagram of a first filter tank.
The figures in the drawings represent:
1-a reaction kettle; 2-a settling kettle; 3-a neutralization kettle; 4-rectifying still; 5-a first filtration tank; 6-a second filtration tank; 7-a vacuum pump; 8-a vacuum pipe; 9-a first outlet; 10-a second outlet; 11-a third outlet; 12-a fourth outlet; 13-a rectifying column; 14-a condenser; 15-a first liquid receiving tank; 16-a second liquid receiving tank; 17-a third liquid receiving tank; 18-a liquid feed conduit; 19-a solid feed port; 20-a stirrer; 21-a filter frame; 22-a filter cloth; 23-vacuum tube; 24-a condensate inlet; 25-condensate outlet.
Detailed Description
The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.
As shown in fig. 1-3, this embodiment provides an apparatus for synthesizing bis (2-methoxypropoxy) methane, which includes a reaction vessel 1, a settling vessel 2, a neutralization vessel 3, a rectification vessel 4, a first filter tank 5, a second filter tank 6, and a vacuum pump 7, wherein an outlet of the reaction vessel 1 is connected to an inlet of the settling vessel 2, an outlet of the settling vessel 2 is connected to an inlet of the neutralization vessel 3 and an inlet of the first filter tank 5, an outlet of the first filter tank 5 is connected to an inlet of the neutralization vessel 3, an outlet of the neutralization vessel 3 and an outlet of the second filter tank 6 are connected to an inlet of the rectification vessel 4, the vacuum pump 7 is connected to the reaction vessel 1, the settling vessel 2, the neutralization vessel 3, and the rectification vessel 4 through vacuum pipes 8, and the vacuum pipes 8 are connected to the reaction vessel 1, the settling vessel 2, the neutralization vessel 3, and the rectification vessel 4 and are provided with valves.
The outlet of the settling kettle 2 is divided into a first outlet 9 and a second outlet 10, the first outlet 9 is positioned at the upper part of the settling kettle and is connected with the inlet of the neutralization kettle 3, and the second outlet 10 is positioned at the lower part of the settling kettle 2 and is connected with the inlet of the first filtering tank 5.
The outlet of the neutralization kettle 3 is divided into a third outlet 11 and a fourth outlet 12, the third outlet 11 is positioned at the upper part of the neutralization kettle 3 and is connected with the inlet of the rectifying kettle 4, and the fourth outlet 12 is positioned at the lower part of the neutralization kettle 3 and is connected with the inlet of the second filter tank 6.
Adding a material to be reacted into a reaction kettle 1 for reaction, after the reaction is finished, allowing the material to enter a settling kettle 2 for settling, separating a solid catalyst and a reaction liquid, allowing supernatant to enter a neutralization kettle 3 through a first outlet 9 under negative pressure, allowing lower-layer substances to enter a first filtering tank 5 through a second outlet 10, filtering and recovering the solid catalyst, allowing the filtered liquid to enter the neutralization kettle 3 through the first filtering tank 5, allowing the acidic reaction liquid in the settling kettle 2 and the first filtering tank 5 to enter the neutralization kettle 3 to be neutralized in the neutralization kettle 3, standing, allowing the supernatant to enter a second filtering tank 6 through a third outlet 11, allowing lower-layer suspended matters to enter the second filtering tank 6 through a fourth outlet 12, filtering to remove solids in the second filtering tank 6, allowing filtrate to enter a rectifying kettle 4 through the second filtering tank 6, and separating and purifying the reaction liquid entering the rectifying kettle in the neutralization kettle 3 together.
The upper end of the rectifying still 4 is connected with a rectifying tower 13, the outlet of the rectifying tower 13 is connected with the inlet of a condenser 14, and the outlet of the condenser 14 is connected with a first liquid receiving tank 15, a second liquid receiving tank 16 and a third liquid receiving tank 17. After the reaction liquid is separated and purified in the rectifying still 4, the reaction liquid is condensed in the condenser 14, and the condensed liquid is respectively fed into the first liquid receiving tank 15, the second liquid receiving tank 16 and the third liquid receiving tank 17 according to different boiling ranges.
The reactor comprises a reaction kettle 1 and is characterized in that a liquid feeding pipeline 18, a solid feeding port 19, a stirrer 20 and a heating interlayer are arranged on the reaction kettle 1, the liquid feeding pipeline 18 and the solid feeding port 19 are both located on the upper portion of the reaction kettle, the stirrer 20 is a glass lining anchor type stirrer, the heating interlayer is used for heating the reaction kettle, the liquid feeding pipeline 18 and the solid feeding port 19 on the reaction kettle 1 are separated, feeding is facilitated simultaneously, reaction materials are stirred through the glass lining anchor type stirrer, reaction efficiency is improved, and the heating interlayer regulates and controls the reaction temperature.
And emptying valves are arranged on the settling kettle 2, the neutralizing kettle 3, the first filtering tank 5 and the second filtering tank 6. And emptying valves are arranged on the sedimentation axe 2, the neutralization kettle 3, the first filtering tank 5 and the second filtering tank 6 and are used for emptying the sedimentation kettle 2, the neutralization kettle 3, the first filtering tank 5, the second filtering tank 6 and a connected vacuum pipeline 8.
The first filtration jar 5 and the second filtration jar 6 are both provided with a filtration frame 21, the filtration frame 21 is provided with a filtration cloth 22, and the solid-liquid mixture entering the first filtration jar 5 and the second filtration jar 6 is separated by the filtration cloth 22 arranged on the filtration frame 21.
A vacuum pipe 23 is arranged on the condenser 14, the vacuum pipe 23 is arranged on the condenser 14, when the condenser 14 needs to realize a negative pressure atmosphere, a valve at a vacuum pipeline connecting the rectifying still 4 and the vacuum pump 7 needs to be closed, negative pressure reduced rectification is realized through the vacuum pipe 23, and organic matter steam is prevented from entering the vacuum pump
The condenser 14 is a shell and tube condenser, and a condensed water inlet 24 and a condensed water outlet 25 are arranged on the condenser 14.
The following is illustrated by the reaction:
the reaction idea is as follows:
the paraformaldehyde is used for replacing neutral formalin buffer solution, so that the release of formaldehyde can be properly prevented, and the environmental pollution is avoided to a greater extent.
Adding an acidic resin catalyst, paraformaldehyde and propylene glycol methyl ether into a reaction kettle in proportion, heating for reacting for several hours, cooling after the reaction is finished, allowing the materials to enter a settling kettle 2 under the action of negative pressure, standing, allowing supernatant to enter a neutralization kettle 3, allowing the lower-layer resin catalyst and liquid to enter a first filter tank 5, recovering and recycling the solid catalyst, and allowing filtrate to enter the neutralization kettle 3. Adding anhydrous sodium carbonate into the neutralization kettle 3 in proportion, stirring for neutralization, standing, allowing the supernatant to enter the rectifying kettle 4, allowing the lower-layer solid and liquid to enter the second filter tank 6, collecting the solid, and allowing the liquid to enter the rectifying kettle 4 for product separation. During rectification, a valve at the vacuum pipeline connected with the vacuum pump 7 of the rectifying still 4 is closed, and a vacuum atmosphere is realized through a vacuum pipe 23 arranged on the condenser 14, so that organic steam is prevented from entering the vacuum pump.
The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The device for synthesizing bis (2-methoxypropoxy) methane is characterized by comprising a reaction kettle, a settling kettle, a neutralizing kettle, a rectifying kettle, a first filtering tank, a second filtering tank and a vacuum pump, wherein an outlet of the reaction kettle is connected with an inlet of the settling kettle, an outlet of the settling kettle is connected with an inlet of the neutralizing kettle and an inlet of the first filtering tank respectively, an outlet of the first filtering tank is connected with an inlet of the neutralizing kettle, an outlet of the neutralizing kettle and an outlet of the second filtering tank are connected with an inlet of the rectifying kettle, the vacuum pump is connected with the reaction kettle, the settling kettle, the neutralizing kettle and the rectifying kettle respectively through vacuum pipelines, and valves are arranged on the vacuum pipelines connected with the reaction kettle, the settling kettle, the neutralizing kettle and the rectifying kettle respectively.
2. The apparatus for synthesizing bis (2-methoxypropoxy) methane according to claim 1, wherein the outlet of the settling tank is divided into a first outlet and a second outlet, the first outlet is located at the upper part of the settling tank and connected to the inlet of the neutralization tank, and the second outlet is located at the lower part of the settling tank and connected to the inlet of the first filtration tank.
3. The apparatus for synthesizing bis (2-methoxypropoxy) methane according to claim 1, wherein the outlet of the neutralization tank is divided into a third outlet and a fourth outlet, the third outlet is located at the upper part of the neutralization tank and connected to the inlet of the rectification tank, and the fourth outlet is located at the lower part of the neutralization tank and connected to the inlet of the second filtration tank.
4. The device for synthesizing bis (2-methoxypropoxy) methane according to claim 1, wherein a rectifying tower is connected to the upper end of the rectifying still, the outlet of the rectifying tower is connected to the inlet of a condenser, and the outlet of the condenser is connected to a first liquid receiving tank, a second liquid receiving tank and a third liquid receiving tank.
5. The apparatus for synthesizing bis (2-methoxypropoxy) methane according to claim 1, wherein the reaction vessel is provided with a liquid feeding pipe, a solid feeding port, a stirrer and a heating interlayer, the liquid feeding pipe and the solid feeding port are both positioned at the upper part of the reaction vessel, the stirrer is a glass lining anchor stirrer, and the heating interlayer is used for heating the reaction vessel.
6. The apparatus for synthesizing bis (2-methoxypropoxy) methane of claim 1, wherein the settling tank, the neutralization tank, the first filtration tank, and the second filtration tank are provided with emptying valves.
7. The apparatus for synthesizing bis (2-methoxypropoxy) methane of claim 4, wherein the first filtration tank and the second filtration tank each have a filtration frame with a filter cloth thereon.
8. The apparatus for synthesizing bis (2-methoxypropoxy) methane of claim 4, wherein the condenser is provided with a vacuum tube, and the vacuum tube is connected to a vacuum pump.
9. The apparatus for synthesizing bis (2-methoxypropoxy) methane according to claim 4, wherein the condenser is a shell and tube condenser having a condensed water inlet and a condensed water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221724717.7U CN217940131U (en) | 2022-07-06 | 2022-07-06 | Device for synthesizing bis (2-methoxypropoxy) methane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221724717.7U CN217940131U (en) | 2022-07-06 | 2022-07-06 | Device for synthesizing bis (2-methoxypropoxy) methane |
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| CN217940131U true CN217940131U (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221724717.7U Active CN217940131U (en) | 2022-07-06 | 2022-07-06 | Device for synthesizing bis (2-methoxypropoxy) methane |
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