CN220361164U - High-efficient potassium methoxide production system - Google Patents
High-efficient potassium methoxide production system Download PDFInfo
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- CN220361164U CN220361164U CN202321730979.9U CN202321730979U CN220361164U CN 220361164 U CN220361164 U CN 220361164U CN 202321730979 U CN202321730979 U CN 202321730979U CN 220361164 U CN220361164 U CN 220361164U
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- potassium methoxide
- methanol
- reactor
- cooler
- production system
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- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 189
- 239000006200 vaporizer Substances 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 abstract description 15
- 239000000498 cooling water Substances 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 26
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001223 reverse osmosis Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model aims to solve the technical problem of providing a high-efficiency potassium methoxide production system, which is characterized in that a methanol vaporizer is additionally arranged, rectified methanol is heated to the temperature in a potassium methoxide reaction kettle and then enters the potassium methoxide reaction kettle for reaction, so that the production efficiency is improved, after the reaction in the potassium methoxide reaction kettle is thorough, cooling water is circularly introduced through an interlayer sleeve for cooling, and the cooling time of a product is accelerated; the bottom discharge port of the potassium methoxide reactor is communicated with a product storage tank.
Description
Technical Field
The utility model relates to a chemical potassium methoxide production technology, in particular to a high-efficiency potassium methoxide production system.
Background
When chemical enterprises produce potassium methoxide solution, methanol and solid potassium hydroxide are used as main raw materials, potassium hydroxide and methanol are added into a potassium methoxide reaction kettle, the interior of the potassium methoxide reaction kettle is heated, the reaction temperature is controlled at 85-95 ℃, the reaction pressure is micro positive pressure, and potassium methoxide and water are generated when methanol reacts with potassium hydroxide; continuously introducing methanol from the bottom, adsorbing water generated by the reaction to form high-water-content methanol, feeding the methanol into a rectifying device for rectifying and dewatering to form dry methanol, and feeding the dry methanol into a potassium methoxide reactor to realize the circulation of the methanol until potassium hydroxide in a reaction kettle is reacted completely to generate potassium methoxide, and the water content is lower than 0.1% to obtain a final product. The reaction equation: ch3oh+koh→ch3ok+h2o. A method for producing potassium methoxide as disclosed in the prior art publication No. CN1186302C is to employ such a method.
However, the temperature needs to be ensured during the reaction in the potassium methoxide reaction kettle, and when methanol is rectified and dehydrated and then circularly enters the potassium methoxide reaction kettle, the temperature in the reaction kettle is reduced due to low temperature, so that the production efficiency is reduced. Meanwhile, the potassium methoxide product needs to be cooled to enter a product storage tank, however, the temperature of the reaction kettle product is reduced from about 90 ℃ to below 50 ℃, the reaction kettle product needs to be used for 6 to 8 hours, and the cooling time is long, so that the production efficiency is low.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a high-efficiency potassium methoxide production system, which is characterized in that a methanol vaporizer is additionally arranged, rectified methanol is heated to the temperature in a potassium methoxide reaction kettle and then enters the potassium methoxide reaction kettle for reaction, so that the production efficiency is improved, and after the potassium methoxide reaction kettle is thoroughly reacted, cooling water is circularly introduced through an interlayer sleeve for cooling, and the cooling time of a product is shortened.
The utility model is realized by the following technical scheme:
a high-efficiency potassium methoxide production system comprises a potassium methoxide reactor, a methanol vaporizer, a first cooler, a methanol storage tank, a methanol rectifying device and a product storage tank,
the outer wall of the potassium methoxide reactor is provided with an interlayer sleeve, the top of the potassium methoxide reactor is provided with a first steam outlet, the first steam outlet is sequentially communicated with the first cooler, the methanol storage tank and the methanol rectifying device, the methanol outlet of the methanol rectifying device is respectively communicated with the potassium methoxide reactor and the methanol vaporizer through pipelines, and the second steam outlet of the methanol vaporizer is communicated with the bottom of the potassium methoxide reactor;
and a bottom discharge port of the potassium methoxide reactor is communicated with the product storage tank.
Further, a second cooler is arranged between the bottom discharge port of the potassium methoxide reactor and the product storage tank.
Further, a filter is arranged between the bottom discharge port of the potassium methoxide reactor and the second cooler.
Further, the filter element of the filter is a metal folding net filter element.
Further, a demister is arranged between the first steam outlet and the first cooler.
Further, the second cooler is a tube type heat exchanger.
Compared with the prior art, the utility model has the following beneficial effects:
1. the methanol vaporizer is additionally arranged, the rectified methanol is heated to the temperature in the potassium methoxide reaction kettle, then enters the potassium methoxide reaction kettle for reaction, so that the reaction temperature in the potassium methoxide reaction kettle is not influenced, and methanol steam enters the potassium methoxide reaction kettle from bottom to top, so that the reaction is sufficient, the production efficiency is improved, and after the reaction in the potassium methoxide reaction kettle completely reaches the product standard, cooling water is circularly introduced through the interlayer sleeve for cooling, the cooling time of the product is shortened, and the production efficiency of a potassium methoxide finished product is improved;
2. a second cooler is arranged between the bottom discharge port of the potassium methoxide reactor and the product storage tank, so that the cooling time of potassium methoxide products can be reduced, and the production efficiency can be improved;
3. the filter can remove impurities in the potassium methoxide product, the filter element of the filter uses a metal folding net filter element to replace a PP melt-blown reverse osmosis filter element, the filter precision is 5 microns, and the metal folding net filter element can be reused, so that the cost is saved; the production of the PP melt-blown reverse osmosis filter element of dangerous waste is reduced, and the treatment cost of dangerous waste is reduced.
Drawings
FIG. 1 is a schematic diagram of a high-efficiency potassium methoxide production system according to the present utility model;
in the figure: 1. the potassium methoxide reactor comprises a potassium methoxide reactor, 2 parts of a methanol vaporizer, 3 parts of a first cooler, 4 parts of a second cooler, 5 parts of a filter, 6 parts of a demister, 7 parts of a methanol storage tank, 8 parts of a methanol rectifying device, 9 parts of a product storage tank, 10 parts of an interlayer sleeve.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings of the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.
In the description of the utility model, it should be understood that the terms "front," "rear," "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
As shown in fig. 1, the present embodiment discloses a high-efficiency potassium methoxide production system, which comprises a potassium methoxide reactor 1, a methanol vaporizer 2, a first cooler 3, a second cooler 4, a filter 5, a demister 6, a methanol storage tank 7, a methanol rectifying device 8 and a product storage tank 9.
An interlayer sleeve 10 is processed on the outer wall of the potassium methoxide reactor 1, a heat medium is circularly introduced into the interlayer sleeve to raise the temperature when the potassium methoxide reactor 1 reacts, and cold water is circularly passed when the product needs to be cooled. The top processing of potassium methoxide reactor 1 has first steam outlet, and first steam outlet communicates foam remover 6, first cooler 3, methyl alcohol storage tank 7 and methyl alcohol rectifier unit 8 in proper order through the pipeline, and the methyl alcohol outlet of methyl alcohol rectifier unit 8 communicates potassium methoxide reactor 1 and methyl alcohol vaporizer 2 respectively through the pipeline, and the bottom of potassium methoxide reactor 1 is passed through to the second steam outlet of methyl alcohol vaporizer 2 through the pipeline intercommunication. The bottom discharge port of the potassium methoxide reactor 1 is sequentially communicated with a filter 5, a second cooler 4 and a product storage tank 9 through pipelines.
The working process of the efficient potassium methoxide production system provided by the utility model is as follows:
adding potassium hydroxide and methanol into a potassium methoxide reaction kettle by taking methanol and solid potassium hydroxide as main raw materials, circularly introducing a heat medium through an interlayer sleeve to heat the potassium methoxide reaction kettle, controlling the reaction temperature to be 85-95 ℃, controlling the reaction pressure to be micro positive pressure, and generating potassium methoxide and water when the methanol reacts with the potassium hydroxide; continuously introducing methanol steam (H2O is less than or equal to 800 ppm) from the bottom of a potassium methoxide reaction kettle, taking out water generated by reaction by using the methanol steam to form mixed steam, removing foam by a foam remover 6, cooling by a first cooler, entering a methanol storage tank 7, rectifying and dehydrating by a methanol rectifying device 8 from the methanol storage tank 7 to form refined methanol, heating the refined methanol after rectifying and dehydrating to the reaction temperature of a potassium methoxide reactor 1 by a methanol vaporizer 2, and then recycling the refined methanol from the bottom to the potassium methoxide reaction kettle, thereby realizing cyclic utilization of the methanol without reducing the reaction temperature and improving the production efficiency; until potassium hydroxide in the reaction kettle is fully reacted to generate potassium methoxide, and the water content is lower than 0.1 percent, which is the final product.
When the potassium methoxide product reaches the standard, cold desalted water is led in through the interlayer sleeve for cooling, then the potassium methoxide product is subjected to impurity removal through the filter 5, then enters the second cooler 4 for rapid cooling, and finally enters the product storage tank 9 after reaching the temperature standard.
In this embodiment, the filter element of the filter 5 adopts a metal folded net filter element to replace a PP melt-blown reverse osmosis filter element, and the filtering precision is 5 microns. The metal folding net filter element is used for replacing the PP melt-blown reverse osmosis filter element, so that the metal folding net filter element can be reused, and the cost is saved; the production of the PP melt-blown reverse osmosis filter element of dangerous waste is reduced, and the treatment cost of dangerous waste is reduced. The second cooler 4 adopts a tube type heat exchanger, and the heat exchange area of the potassium methoxide product and the cooling medium is added, so that the cooling time of the potassium methoxide product is shortened, and the production efficiency is improved.
According to the utility model, the methanol after rectification is heated to the temperature in the potassium methoxide reaction kettle by adding the methanol vaporizer 2, then enters the potassium methoxide reaction kettle for reaction, so that the reaction temperature in the potassium methoxide reaction kettle is not influenced, and methanol steam enters the potassium methoxide reaction kettle from bottom to top, so that the reaction is sufficient, the production efficiency is improved, and after the reaction in the potassium methoxide reaction kettle thoroughly reaches the product standard, cooling water is circularly introduced through an interlayer sleeve for cooling and the auxiliary cooling of the second cooler 4 is performed, so that the cooling time of the product is shortened, and the production efficiency of a potassium methoxide finished product is improved.
Claims (6)
1. A high-efficiency potassium methoxide production system is characterized by comprising a potassium methoxide reactor, a methanol vaporizer, a first cooler, a methanol storage tank, a methanol rectifying device and a product storage tank,
the outer wall of the potassium methoxide reactor is provided with an interlayer sleeve, the top of the potassium methoxide reactor is provided with a first steam outlet, the first steam outlet is sequentially communicated with the first cooler, the methanol storage tank and the methanol rectifying device, the methanol outlet of the methanol rectifying device is respectively communicated with the potassium methoxide reactor and the methanol vaporizer through pipelines, and the second steam outlet of the methanol vaporizer is communicated with the bottom of the potassium methoxide reactor;
and a bottom discharge port of the potassium methoxide reactor is communicated with the product storage tank.
2. The efficient potassium methoxide production system of claim 1, wherein a second cooler is provided between the bottom outlet of the potassium methoxide reactor and the product storage tank.
3. The efficient potassium methoxide production system of claim 2, wherein a filter is provided between the bottom outlet of the potassium methoxide reactor and the second cooler.
4. A high efficiency potassium methoxide production system as claimed in claim 3 wherein the filter element of the filter is a metal pleated mesh filter element.
5. The efficient potassium methoxide production system of claim 2, wherein a demister is provided between the first vapor outlet and the first cooler.
6. The efficient potassium methoxide production system of any one of claims 2-5, wherein the second cooler is a tube array heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321730979.9U CN220361164U (en) | 2023-07-04 | 2023-07-04 | High-efficient potassium methoxide production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321730979.9U CN220361164U (en) | 2023-07-04 | 2023-07-04 | High-efficient potassium methoxide production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220361164U true CN220361164U (en) | 2024-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321730979.9U Active CN220361164U (en) | 2023-07-04 | 2023-07-04 | High-efficient potassium methoxide production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220361164U (en) |
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2023
- 2023-07-04 CN CN202321730979.9U patent/CN220361164U/en active Active
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