CN203878083U - Methylal backpack-type production process device - Google Patents
Methylal backpack-type production process device Download PDFInfo
- Publication number
- CN203878083U CN203878083U CN201420165756.7U CN201420165756U CN203878083U CN 203878083 U CN203878083 U CN 203878083U CN 201420165756 U CN201420165756 U CN 201420165756U CN 203878083 U CN203878083 U CN 203878083U
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- China
- Prior art keywords
- tower
- methylal
- distillation column
- reactive distillation
- pipeline
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- 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
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a methylal backpack-type production process device which comprises a pre-reactor, a reaction rectification tower, a rectification tower, an evaporative condenser and a reflux tank, wherein the reaction rectification tower comprises a reaction section and a rectification section arranged on the lower part; the reaction section is a multilayer structure of which the upper and lower parts are communicated; each layer is connected with a backpack-type reactor through a pipeline to form a cycle; the top of the reaction rectification tower is connected with the inlet of the rectification tower through a pipeline; the top of the rectification tower is connected with the reflux tank through a pipeline; the evaporative condenser is arranged between the top of the rectification tower and the reflux tank; the bottom of the reaction rectification tower is connected with a cold water supplementing port of the evaporative condenser; and the reflux tank is provided with a branch and connected with the top of the rectification tower through a reflex pump. By changing the one-tower process into the two-tower process, the methylal backpack-type production process device can reduce the height of the tower, thereby greatly lowering the equipment investment; and the energy-saving evaporative condenser is adopted, thereby saving the power consumption and water consumption and lowering the production cost.
Description
Technical field
The utility model relates to methylal production technical field, relates in particular to the production technology that concentration is more than 99.9% methylal.
Background technology
Methylal has good physicochemical property, be good solubility, lower boiling, good with water dissolubility, can be widely used in the products such as makeup, medicine, household supplies, industrial Automobile Products, sterilant, leather polish, sanitising agent, rubber industry, paint, ink, also because methylal (109-87-5) has good ability of cleaning greasy dirt and volatility, can substitute F11 and F113 and chlorinated solvents as sanitising agent, therefore be replacement fluorine Lyons, reduce volatile organic matter (VOCs) discharge, reduce the environmentfriendly products to topsoil.Development in recent years is very fast, has especially represented good application development prospect in aerosol field.
Methylal production technique adopts solid resin at present, has solved the problem of equipment corrosion, simultaneously from reaction and two chemical engineering unit operation one tower process of rectifying are completed, causes the height of tower to increase, and makes facility investment large.The COD content of waste water is large, is difficult to process.
Summary of the invention
Goal of the invention: for problem and the defect of above-mentioned existence, the utility model provides a kind of methylal Backpack type production technique device, greatly saves facility investment, and adopts the energy-conservation energy-conservation evaporative condenser that is conducive to, the consumption that can save power consumption and water, reduces production costs.
Technical scheme: for achieving the above object, the present invention is by the following technical solutions: a kind of methylal Backpack type production technique device, comprise pre-reactor, reactive distillation column, rectifying tower, evaporative condenser and return tank, described reactive distillation column comprises conversion zone and is located at the rectifying section of bottom, conversion zone is the multilayered structure being communicated with up and down, and every layer is all connected with Backpack type reactor by pipeline and forms circulation; Described reactive distillation column overhead is connected with rectifying tower entrance by pipeline, and rectifying tower tower top is connected with return tank by pipeline, and evaporative condenser is located between rectifying tower tower top and return tank; At the bottom of described reactive distillation column tower, supplementing mouth by the cold water of pipeline and evaporative condenser is connected; Described return tank is provided with branch road and is connected with rectifying tower top by reflux pump.
As preferably, described Backpack type reactor is 8, and is independently located at outside reactive distillation column.
As preferably, described pre-reactor is the fixed bed catalyst reactor of two series connection.
As preferably, the tower bottom of described reactive distillation column is provided with reboiler, thereby provides thermal source for reactive distillation column.
As preferably, at the bottom of the tower of described rectifying tower, reflux and be connected with reactive distillation column by pipeline.
Beneficial effect: compared with prior art, the utlity model has following advantage: change two tower process into by an original tower process, can reduce the height of tower, greatly reduce facility investment; 8 reactors of reactive distillation column, can make the not formaldehyde in pre-reactor complete reaction, methyl alcohol continue reaction, until complete reaction.Make the waste water COD≤30ppm at the bottom of reactive distillation column, directly reach emission standard; Methylal plate-type condenser is changed as energy-conservation evaporative condenser, and high without heat exchange efficiency, the investment of also having saved the floor space of circulating water pool and pipeline, pump, and the consumption of saving power consumption and water, reduce production costs.
Brief description of the drawings
Fig. 1 is the technological process of production schematic diagram of described methylal of the present utility model.
Wherein, pre-reactor 1, reactive distillation column 2, rectifying tower 3, Backpack type reactor 4, evaporative condenser 5, return tank 6, reboiler 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only be not used in restriction scope of the present utility model for the utility model is described, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the amendment of the various equivalent form of values of the present utility model.
As shown in Figure 1, a kind of technological process of production of methylal, by after formaldehyde and methanol mixed, enters in pre-reactor after reaction, and the methylal that reaction generates and methyl alcohol, formaldehyde, water enter reactive distillation column.Enter after reactive distillation column, at the conversion zone of reactive distillation column, responseless formaldehyde and methyl alcohol enter under the Circulation by side reactors pump and send into side reactors, after reaction, recirculation refluxes and enters reactive distillation column, same after the further reaction of 8 side reactors, methylal and methyl alcohol are gone out and are entered rectifying tower from reactive distillation column overhead, and the water that the water reacting completely and methylal are produced as waste water from the bottom of reactive distillation column tower through pump extraction send into evaporative condenser through overcooling, as the make up water of evaporative condenser, water saving.And methylal and methyl alcohol continue further to separate in rectifying tower, the water at the bottom of rectifying tower, methylal, methyl alcohol backflow as reactive distillation column through reflux pump.Methylal product enters return tank from rectifying tower tower top after evaporative condenser condensation, and wherein a part is as the backflow of rectifying tower, part product extraction the most.
Claims (5)
1. a methylal Backpack type production technique device, it is characterized in that: comprise pre-reactor, reactive distillation column, rectifying tower, evaporative condenser and return tank, described reactive distillation column comprises conversion zone and is located at the rectifying section of bottom, conversion zone is the multilayered structure being communicated with up and down, and every layer is all connected with Backpack type reactor by pipeline and forms circulation; Described reactive distillation column overhead is connected with rectifying tower entrance by pipeline, and rectifying tower tower top is connected with return tank by pipeline, and evaporative condenser is located between rectifying tower tower top and return tank; At the bottom of described reactive distillation column tower, supplementing mouth by the cold water of pipeline and evaporative condenser is connected; Described return tank is provided with branch road and is connected with rectifying tower top by reflux pump.
2. methylal Backpack type production technique device according to claim 1, is characterized in that: described Backpack type reactor is 8, and is independently located at outside reactive distillation column.
3. methylal Backpack type production technique device according to claim 1, is characterized in that: described pre-reactor is the fixed bed catalyst reactor of two series connection.
4. methylal Backpack type production technique device according to claim 1, is characterized in that: the tower bottom of described reactive distillation column is provided with reboiler.
5. methylal Backpack type production technique device according to claim 1, is characterized in that: at the bottom of the tower of described rectifying tower, refluxed and be connected with reactive distillation column by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165756.7U CN203878083U (en) | 2014-04-08 | 2014-04-08 | Methylal backpack-type production process device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165756.7U CN203878083U (en) | 2014-04-08 | 2014-04-08 | Methylal backpack-type production process device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203878083U true CN203878083U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420165756.7U Expired - Fee Related CN203878083U (en) | 2014-04-08 | 2014-04-08 | Methylal backpack-type production process device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203878083U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961768A (en) * | 2015-06-12 | 2015-10-07 | 安徽东至广信农化有限公司 | Method for applying evaporative condensers to manufacturing glyphosate |
| CN110652740A (en) * | 2018-06-28 | 2020-01-07 | 无锡凯美工程技术有限公司 | Polyol wastewater treatment device and treatment method |
-
2014
- 2014-04-08 CN CN201420165756.7U patent/CN203878083U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961768A (en) * | 2015-06-12 | 2015-10-07 | 安徽东至广信农化有限公司 | Method for applying evaporative condensers to manufacturing glyphosate |
| CN110652740A (en) * | 2018-06-28 | 2020-01-07 | 无锡凯美工程技术有限公司 | Polyol wastewater treatment device and treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180828 Address after: 214000 Jinxi Road, Wuxi City, Jiangsu Province, No. 100 Patentee after: WUXI ZHIGUI TECHNOLOGY CO., LTD. Address before: 214000 building 50, Heng Hua Science and Technology Park (Jiangnan South Gate), 58 Xiu Xiu Road, Binhu District, Wuxi, Jiangsu Patentee before: Jiangsu Kaimao Chemical Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20200408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |