CN220609145U - Reaction rectifying column is used in production of electron-level methyl ethyl carbonate diethyl ester - Google Patents
Reaction rectifying column is used in production of electron-level methyl ethyl carbonate diethyl ester Download PDFInfo
- Publication number
- CN220609145U CN220609145U CN202322181304.XU CN202322181304U CN220609145U CN 220609145 U CN220609145 U CN 220609145U CN 202322181304 U CN202322181304 U CN 202322181304U CN 220609145 U CN220609145 U CN 220609145U
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- China
- Prior art keywords
- methyl ethyl
- rectifying
- fixed plate
- rectifying column
- rectifying tower
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 title claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 title claims description 7
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- -1 methyl ethyl diethyl carbonate Chemical compound 0.000 claims abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 5
- 238000000066 reactive distillation Methods 0.000 claims 5
- 238000003466 welding Methods 0.000 claims 4
- 239000000203 mixture Substances 0.000 abstract description 21
- ODEXXNNMGSAXBF-UHFFFAOYSA-N diethyl carbonate;ethyl methyl carbonate Chemical compound CCOC(=O)OC.CCOC(=O)OCC ODEXXNNMGSAXBF-UHFFFAOYSA-N 0.000 abstract description 12
- 238000012856 packing Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 4
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229960001948 caffeine Drugs 0.000 description 1
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a reactive rectifying tower for producing electronic grade methyl ethyl diethyl carbonate, which comprises a rectifying tower body, wherein two sides of the interior of the rectifying tower body are connected with a plurality of fixed plates, the top of each fixed plate is provided with a second filler, and the bottom of each fixed plate is provided with a first filler. This rectifying column all is provided with the shower in every horizontal runner in the tower, install a plurality of nozzle on the shower, can all submerge the shower when methyl ethyl carbonate diethyl carbonate mixture enters into every runner, let the methyl ethyl carbonate diethyl carbonate mixture of every runner all receive the same thermal steam heating through nozzle blowout steam, let methyl ethyl carbonate diethyl carbonate mixture be heated more even more fast, thereby improve rectification efficiency, save time also reduces the operating length of centrifugal pump, reduce cost, this rectifying column still sets up the multilayer packing, let methyl ethyl carbonate diethyl carbonate mixture carry out abundant separation, improve the preparation purity of methyl ethyl carbonate diethyl.
Description
Technical Field
The utility model relates to the field of ethyl methyl carbonate diethyl ester rectifying towers, in particular to a reaction rectifying tower for producing electronic grade ethyl methyl carbonate diethyl ester.
Background
Diethyl methyl carbonate, having the chemical formula CH3OCOOC2H5, is an organic compound, also known as diethyl methyl carbonate. The method is an ester compound obtained by reacting methanol and ethanol with dimethyl carbonate.
Diethyl methyl carbonate is mainly used as a solvent in organic synthesis. In particular, it is commonly used in the synthesis of chemicals, pharmaceuticals, dyes and fragrances. The diethyl methyl carbonate may also be used as a solvent for food additives, such as in decaffeinated processes for caffeine.
The production of diethyl methyl carbonate is generally accomplished by esterification of dimethyl carbonate with methanol and ethanol. In the reaction, methanol and ethanol are used as an alcohol source to react with dimethyl carbonate to generate a product. In general, the reaction is carried out in the presence of an acidic catalyst, and sulfuric acid, formic acid, benzoic acid or the like are commonly used as the catalyst. Meanwhile, temperature and reaction time need to be controlled during the reaction to improve the yield. Diethyl methyl carbonate is an important organic synthesis solvent and has wide application in the fields of chemical synthesis, medicine, food industry and the like.
When the diethyl methyl carbonate is produced, the diethyl methyl carbonate is often required to be prepared into an electronic grade, the diethyl methyl carbonate is often purified into the electronic grade by means of purification, activated carbon adsorption, molecular rectification and the like, a rectifying tower is often adopted when the molecules are rectified, and the existing rectifying tower has a plurality of defects: the raw materials at the bottom of the existing rectifying tower enter the top of the tower through a return pipe and flow in flow channels, steam entering through the bottom of the tower is heated, so that a mixture containing diethyl methyl carbonate is separated in a filler, but when the steam entering through the bottom of the tower rises to the top of the tower, the temperature of the steam is reduced, so that only some diethyl methyl carbonate mixture at the middle and lower parts of the rectifying tower can be quickly heated to become steam, the rectifying efficiency is low, the speed is low, the steam cannot be uniformly conveyed into each flow channel, and the diethyl methyl carbonate mixture of each flow channel cannot be quickly heated by the steam.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides a reaction rectifying tower for producing electronic grade diethyl methyl ethyl carbonate, which aims to solve the problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electron level methyl ethyl carbonate diethyl ester production is with reaction rectifying column, includes rectifying column body, the inside both sides of rectifying column body all are connected with a plurality of fixed plate, the second filler is installed at the top of fixed plate, first filler is installed to the bottom of fixed plate, the fixed plate constitutes the runner in rectifying column body, be equipped with the shower in the runner, the one end of shower passes through the connector and links to each other with the gas-supply pipe, the gas-supply pipe links to each other with steam admission pipeline.
As a preferable technical scheme of the utility model, a feeding pipe is welded on one side of the rectifying tower body, a reflux pipeline is welded on one side of the top of the rectifying tower body, a steam discharge pipeline is welded on the top of the rectifying tower body, a liquid storage cavity is arranged at the bottom of the rectifying tower body, and a liquid discharge pipeline is welded at the bottom of the liquid storage cavity.
As a preferable technical scheme of the utility model, the top of the rectifying tower body is welded with a lifting lug, and the liquid discharge pipeline is connected with the reflux pipeline through a centrifugal pump and a connecting pipeline.
As a preferred embodiment of the present utility model, the steam discharge pipe is connected to the condensation tank.
As a preferable technical scheme of the utility model, a plurality of nozzles are uniformly arranged around the spray pipe, and a plurality of through holes are formed in the fixing plate.
As a preferable technical scheme of the utility model, one end of the steam inlet pipeline is also connected with a spray pipe.
The beneficial effects of the utility model are as follows: this rectifying column all is provided with the shower in every horizontal runner in the tower, install a plurality of nozzle on the shower, can all submerge the shower when methyl ethyl carbonate diethyl carbonate mixture enters into every runner, let the methyl ethyl carbonate diethyl carbonate mixture of every runner all receive the same thermal steam heating through nozzle blowout steam, let methyl ethyl carbonate diethyl carbonate mixture be heated more even more fast, thereby improve rectification efficiency, save time also reduces the operating length of centrifugal pump, reduce cost, this rectifying column still sets up the multilayer packing, let methyl ethyl carbonate diethyl carbonate mixture carry out abundant separation, improve the preparation purity of methyl ethyl carbonate diethyl.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: rectifying column body 1, backflow pipeline 2, liquid storage cavity 3, drain pipe 4, steam admission pipeline 5, inlet pipe 6, fixed plate 7, shower 8, first packing 9, second packing 10, gas-supply pipe 11, connector 12, nozzle 13, steam discharge pipeline 14, lug 15, runner 16, through-hole 17.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
Examples: referring to fig. 1, the present utility model provides a technical solution: the utility model provides an electron level methyl ethyl carbonate diethyl ester production is with reaction rectifying column, including rectifying column body 1, rectifying column body 1's inside both sides all are connected with a plurality of fixed plate 7, and second filler 10 is installed at the top of fixed plate 7, and first filler 9 is installed to the bottom of fixed plate 7, and fixed plate 7 constitutes runner 16 in rectifying column body 1, is equipped with shower 8 in the runner 16, and the one end of shower 8 links to each other with gas-supply pipe 11 through connector 12, and gas-supply pipe 11 links to each other with steam admission pipeline 5.
One side of the rectifying tower body 1 is welded with a feeding pipe 6, one side of the top of the rectifying tower body 1 is welded with a backflow pipeline 2, the top of the rectifying tower body 1 is welded with a steam discharge pipeline 14, the bottom of the rectifying tower body 1 is provided with a liquid storage cavity 3, and the bottom of the liquid storage cavity 3 is welded with a liquid discharge pipeline 4.
Lifting lugs 15 are welded at the top of the rectifying tower body 1, lifting is convenient, and the liquid discharge pipeline 4 is connected with the reflux pipeline 2 through a centrifugal pump and a connecting pipeline, so that the circulating flow of the diethyl methyl carbonate mixture is realized.
The steam discharge line 14 is connected to the condensing box.
The periphery of the spray pipe 8 is uniformly provided with a plurality of nozzles 13, and the fixed plate 7 is provided with a plurality of through holes 17, which is beneficial to the passage of steam.
A shower pipe 8 is also connected to one end of the steam inlet pipe 5.
Working principle: when the reaction rectifying tower for producing the electronic grade diethyl methyl ethyl carbonate is used, the diethyl methyl carbonate mixture enters the rectifying tower body 1 through the feed pipe 6, so that the mixture enters the runner 16, flows into the liquid storage cavity 3 through the runner 16, is pumped into the backflow pipeline 2 through the centrifugal pump connected to the liquid discharge pipeline 4, enters the tower top through the backflow pipeline 2, flows into the tower bottom through the runner 16 at the tower top, flows circularly all the time, and meanwhile, is conveyed into the spray pipes 8 in each runner 16 by the steam inlet pipeline 5 and the gas transmission pipe 11, and is sprayed out through the nozzles 13 on the spray pipes 8, so that the steam is discharged through the diethyl methyl carbonate mixture, the purpose of heating the diethyl methyl carbonate mixture is achieved, the diethyl methyl carbonate mixture is enabled to generate steam to enter the first filler 9 and the second filler 10, and the diethyl methyl carbonate is purified.
This rectifying column all is provided with the shower in every horizontal runner in the tower, install a plurality of nozzle on the shower, can all submerge the shower when methyl ethyl carbonate diethyl carbonate mixture enters into every runner, let the methyl ethyl carbonate diethyl carbonate mixture of every runner all receive the same thermal steam heating through nozzle blowout steam, let methyl ethyl carbonate diethyl carbonate mixture be heated more even more fast, thereby improve rectification efficiency, save time also reduces the operating length of centrifugal pump, reduce cost, this rectifying column still sets up the multilayer packing, let methyl ethyl carbonate diethyl carbonate mixture carry out abundant separation, improve the preparation purity of methyl ethyl carbonate diethyl.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (6)
1. The utility model provides an electron level methyl ethyl carbonate diethyl ester production is with reaction rectifying column, includes rectifying column body (1), its characterized in that: the utility model discloses a rectifying tower, including rectifying tower body (1), gas-supply pipe (11), gas-supply pipe (8), rectifying tower body (1)'s inside both sides all are connected with a plurality of fixed plate (7), second filler (10) are installed at the top of fixed plate (7), first filler (9) are installed to the bottom of fixed plate (7), fixed plate (7) constitute runner (16) in rectifying tower body (1), be equipped with shower (8) in runner (16), the one end of shower (8) links to each other with gas-supply pipe (11) through connector (12), gas-supply pipe (11) links to each other with steam admission pipeline (5).
2. The reactive distillation column for producing electronic grade diethyl methyl carbonate of claim 1, wherein: one side welding of rectifying column body (1) has inlet pipe (6), the top one side welding of rectifying column body (1) has reflux pipeline (2), the top welding of rectifying column body (1) has steam exhaust pipe (14), the bottom of rectifying column body (1) is equipped with liquid storage cavity (3), the bottom welding of liquid storage cavity (3) has fluid-discharge pipe (4).
3. The reactive distillation column for producing electronic grade diethyl methyl carbonate of claim 2, wherein: lifting lugs (15) are welded at the top of the rectifying tower body (1), and the liquid discharge pipeline (4) is connected with the reflux pipeline (2) through a centrifugal pump and a connecting pipeline.
4. The reactive distillation column for producing electronic grade diethyl methyl carbonate of claim 2, wherein: the steam discharge pipe (14) is connected to the condensing box.
5. The reactive distillation column for producing electronic grade diethyl methyl carbonate of claim 1, wherein: the periphery of the spray pipe (8) is uniformly provided with a plurality of nozzles (13), and the fixed plate (7) is provided with a plurality of through holes (17).
6. The reactive distillation column for producing electronic grade diethyl methyl carbonate of claim 1, wherein: one end of the steam inlet pipeline (5) is also connected with a spray pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322181304.XU CN220609145U (en) | 2023-08-14 | 2023-08-14 | Reaction rectifying column is used in production of electron-level methyl ethyl carbonate diethyl ester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322181304.XU CN220609145U (en) | 2023-08-14 | 2023-08-14 | Reaction rectifying column is used in production of electron-level methyl ethyl carbonate diethyl ester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220609145U true CN220609145U (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322181304.XU Active CN220609145U (en) | 2023-08-14 | 2023-08-14 | Reaction rectifying column is used in production of electron-level methyl ethyl carbonate diethyl ester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220609145U (en) |
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2023
- 2023-08-14 CN CN202322181304.XU patent/CN220609145U/en active Active
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| GR01 | Patent grant | ||
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