CN201665644U - Device for producing ethyl methyl carbonate by ester exchanging method - Google Patents
Device for producing ethyl methyl carbonate by ester exchanging method Download PDFInfo
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- CN201665644U CN201665644U CN2010201569178U CN201020156917U CN201665644U CN 201665644 U CN201665644 U CN 201665644U CN 2010201569178 U CN2010201569178 U CN 2010201569178U CN 201020156917 U CN201020156917 U CN 201020156917U CN 201665644 U CN201665644 U CN 201665644U
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- rectifying still
- methyl ethyl
- equipment
- ethyl methyl
- methyl carbonate
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Abstract
A device for producing ethyl methyl carbonate by ester exchanging method is characterized in that the device comprises a reaction tower which is provided with a discharging pipe, the discharging pipe is connected to a rectifying still via a distillation separator, the rectifying still is connected to a product discharging pipe, and the rectifying still is connected to a vacuumizing device and a DCS auto-control system. The device for producing ethyl methyl carbonate by ester exchanging method being reasonable in structure design can realize continuous feeding and reacting and the products processed reaches ten-thousand-ton level. When ensuring the ethyl methyl carbonate product quality and conversion rate, the device can continuously produce large amount of ethyl methyl carbonate having 99.99% purity at an industrial model.
Description
Technical field
The utility model belongs to the technology of preparing of Methyl ethyl carbonate, is specifically related to a kind of equipment that is used for the carbonate production by transesterification methyl ethyl ester.
Background technology
Methyl ethyl carbonate is a kind of asymmetric carbonic ether, at aspects such as organic synthesis, medicine, agricultural chemicals, solvent, additives extensive use is arranged.Because the viscosity of Methyl ethyl carbonate is little, specific inductivity is big, to the solvability chamber of lithium salts, is used for the organic electrolyte of lithium ion battery, can improve energy density, loading capacity and the low temperature use properties of battery.
The synthetic method of Methyl ethyl carbonate mainly contains phosgenation, oxidative carbonylation method and ester-interchange method, it is three operational paths of raw material that ester-interchange method has methylcarbonate and ethanol, diethyl carbonate and methyl alcohol and methylcarbonate and diethyl carbonate, is the industrialization most popular method for preparing Methyl ethyl carbonate at present.To adopt methylcarbonate and ethanol is the device of raw material production Methyl ethyl carbonate for existing, and can only to pass through rhythmic reaction, batch fractionating and methyl ethyl carbonate ester conversion rate low for Methyl ethyl carbonate in original production technique; Methyl ethyl carbonate needs can't satisfy the needs of existing high yield preparation of industrialization Methyl ethyl carbonate through multiple tracks operation at intermittence and device systems from producing product turnover jar.
The utility model content
The utility model provides a kind of reasonable in design, can realize the equipment of the carbonate production by transesterification methyl ethyl ester of continuously feeding reaction.Unit capacity reaches ton, and it can guarantee the quality product and the transformation efficiency of Methyl ethyl carbonate, can realize that high purity reaches the serialization high yield preparation of industrialization of 99.99% Methyl ethyl carbonate.
The technical scheme that the utility model adopted is as follows:
A kind of equipment of carbonate production by transesterification methyl ethyl ester is characterized in that described equipment comprises a reaction tower, and this reaction tower is connected with the discharging pipeline, and this tapping channel is provided with rectifying still by fractionation by distillation device connection, and rectifying still connects product discharging pipeline; Described rectifying still connection is provided with vaccum-pumping equipment and DCS automatic control system.
In one embodiment, described rectifying still is two groups of the series connection setting, and each rectifying still is connected setting by return line with described reactor respectively.
In one embodiment, described DCS automatic control system comprises real time monitoring apparatus, intelligent flow control device, temperature-detecting device and fluid level control device.
In another embodiment, described vaccum-pumping equipment is the vacuum pump that is provided with the rectifying still internal communication, and this vacuum pump is connected by described DCS automatic controlling system.
The equipment of this carbonate production by transesterification methyl ethyl ester can solve the crucial difficult point of mass production Methyl ethyl carbonate, and promptly tracking, highly efficient distilling can be controlled, separate to controllable quality by the realization response of DCS automatic control system.Can methylcarbonate and ethanol separate accessory products is disposable after reaction finishes, the quality of the finished product will be had influence on greatly, by real time monitoring apparatus, intelligent flow device, temperature-detecting device and the fluid level control device of DCS automation control system, can reach the product of each rectifying tower continuous, qualified, stable enter into next operation.Carry out the rectifying mode that transformation vacuum and material return continuously by vacuum pump in addition, quality product is effectively guaranteed.
The beneficial effects of the utility model are that the device structure of this carbonate production by transesterification methyl ethyl ester is reasonable in design, can realize the continuously feeding reaction, and unit capacity reaches ton.It can guarantee the quality product and the transformation efficiency of Methyl ethyl carbonate, can realize that high purity reaches the serialization high yield preparation of industrialization of 99.99% Methyl ethyl carbonate.
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Description of drawings
Fig. 1 is that the structure of the utility model embodiment is formed synoptic diagram.
Embodiment
As shown in Figure 1, the equipment of this carbonate production by transesterification methyl ethyl ester comprises a reaction tower 11, and this reaction tower is connected with the discharging pipeline, and this tapping channel is provided with rectifying still by a fractionation by distillation device 16 connections, and rectifying still connects product discharging pipeline; The rectifying still connection is provided with vaccum-pumping equipment and DCS automatic control system 12.Rectifying still is two groups of the series connection setting, and two rectifying stills 14,15 are connected setting by return line respectively with reactor.DCS automatic control system 12 comprises real time monitoring apparatus, intelligent flow control device, temperature-detecting device and fluid level control device.Vaccum-pumping equipment is the vacuum pump 13 that is provided with the rectifying still internal communication, and this vacuum pump can be connected by the DCS automatic controlling system.
The equipment of this carbonate production by transesterification methyl ethyl ester can be used for the production of ton methyl ethyl carbonate ester apparatus continous-stable, the contriver produces Methyl ethyl carbonate processing parameter bag through the ton single stage method that this equipment has been developed in effort in many ways, comprises the energy material consumption amount of each cat head still temperature, pressure, flow, the every data of liquid level and each tower; Comprise that also Methyl ethyl carbonate internal control production quality control index is like the content in the following table one.
Table one
Claims (4)
1. the equipment of a carbonate production by transesterification methyl ethyl ester is characterized in that described equipment comprises a reaction tower, and this reaction tower is connected with the discharging pipeline, and this tapping channel is provided with rectifying still by fractionation by distillation device connection, and rectifying still connects product discharging pipeline; Described rectifying still connection is provided with vaccum-pumping equipment and DCS automatic control system.
2. the equipment of carbonate production by transesterification methyl ethyl ester according to claim 1 is characterized in that described rectifying still two groups for the series connection setting, and each rectifying still is connected setting by return line with described reactor respectively.
3. the equipment of carbonate production by transesterification methyl ethyl ester according to claim 1 is characterized in that described DCS automatic control system comprises real time monitoring apparatus, intelligent flow control device, temperature-detecting device and fluid level control device.
4. the equipment of carbonate production by transesterification methyl ethyl ester according to claim 1 is characterized in that described vaccum-pumping equipment is the vacuum pump that is provided with the rectifying still internal communication, and this vacuum pump is connected by described DCS automatic controlling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201569178U CN201665644U (en) | 2010-04-13 | 2010-04-13 | Device for producing ethyl methyl carbonate by ester exchanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201569178U CN201665644U (en) | 2010-04-13 | 2010-04-13 | Device for producing ethyl methyl carbonate by ester exchanging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201665644U true CN201665644U (en) | 2010-12-08 |
Family
ID=43266601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201569178U Expired - Fee Related CN201665644U (en) | 2010-04-13 | 2010-04-13 | Device for producing ethyl methyl carbonate by ester exchanging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201665644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109096115A (en) * | 2018-07-02 | 2018-12-28 | 赵杰 | A kind of methyl ethyl carbonate preparation process |
-
2010
- 2010-04-13 CN CN2010201569178U patent/CN201665644U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109096115A (en) * | 2018-07-02 | 2018-12-28 | 赵杰 | A kind of methyl ethyl carbonate preparation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20180413 |