CN202766434U - Novel device for producing ethyl methyl carbonate - Google Patents
Novel device for producing ethyl methyl carbonate Download PDFInfo
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- CN202766434U CN202766434U CN 201220472481 CN201220472481U CN202766434U CN 202766434 U CN202766434 U CN 202766434U CN 201220472481 CN201220472481 CN 201220472481 CN 201220472481 U CN201220472481 U CN 201220472481U CN 202766434 U CN202766434 U CN 202766434U
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- transesterification reaction
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Abstract
The utility model provides a novel device for producing ethyl methyl carbonate. The novel device comprises an ester exchange reaction tower, a feed end of the ester exchange reaction tower is respectively connected with a dimethyl carbonate feed port and an absolute ethyl alcohol feed port through a buffer tank, a first condenser is connected at the top of the ester exchange reaction tower, a discharge end at the bottom end of the ester exchange reaction tower is connected with a feed end of a separation tower, and a discharge end at the bottom of the separation tower is connected with a feed end of a purification tower. The production device is reasonable in structural design, continuous feed reaction, separation and purification process can be realized, the match ratio and the flow of reaction raw materials such as dimethyl carbonate and absolute ethyl alcohol are effectively controlled by the buffer tank, and the use ratio of the reaction raw materials is effectively increased by an additionally arranged distillate tank.
Description
Technical field
The utility model relates to a kind of production equipment of Methyl ethyl carbonate, is specifically related to a kind of production equipment of novel Methyl ethyl carbonate.
Background technology
Methyl ethyl carbonate (EMC) is the Chemicals of the high added value of rising in recent years, can be used for many filling property batteries, such as lithium metal battery, cosolvent as its non-aqueous electrolyte, can improve the performance of battery, as improve its energy density, increase discharge capability, improve stability in use and security, and because it has methyl and ethyl simultaneously, having the characteristic of methylcarbonate (DMC), diethyl carbonate (DEC) concurrently, also is the solvent of extraordinary spices and intermediate, therefore has broad application prospects.
The synthetic method of EMC mainly contains phosgenation, oxidative carbonylation and ester-interchange method at present, and wherein ester-interchange method is EMC synthetic method comparatively commonly used.Wherein ester-interchange method mainly contains three kinds of approach, is respectively DMC and DEC transesterify, DEC and methyl alcohol transesterify, DMC and ethanol transesterify.Wherein the synthetic EMC of DMC and ethanol transesterify is reversible reaction, raw material DMC and the ethanol of this reaction are the raw material that is easy to get, and resultant methyl alcohol can also be as the raw material of producing DMC, this reaction product toxicity is little, reaction process is without " three wastes ", facility investment is little, and technique is simple, and production purity is high.But be the device of raw material production Methyl ethyl carbonate for available technology adopting methylcarbonate and ethanol, Methyl ethyl carbonate can only pass through rhythmic reaction, batch fractionating in original production technique, and the Methyl ethyl carbonate low conversion rate; Methyl ethyl carbonate need to through multiple tracks operation at intermittence and device systems, can't satisfy the needs of existing high yield preparation of industrialization Methyl ethyl carbonate from producing product turnover tank.
The utility model content
For problems of the prior art, the utility model provides a kind of production equipment of novel Methyl ethyl carbonate, realizes the continuous production of Methyl ethyl carbonate by transesterification reaction tower, knockout tower and the purification tower that connects in turn.
The utility model provides a kind of production equipment of novel Methyl ethyl carbonate, this production equipment comprises the transesterification reaction tower, the feed end of this transesterification reaction tower by surge tank respectively with the dimethyl carbonate opening for feed, the dehydrated alcohol opening for feed is connected, the transesterification reaction tower is provided with catalyst charging hole, the top of transesterification reaction tower is connected with the first condenser, connect respectively methanol collection device by the first condenser, distillate drum, the bottom discharge end of transesterification reaction tower connects the feed end of knockout tower, the top of knockout tower is connected with the second condenser, the second condenser also links to each other with distillate drum, and distillate drum connects the feed end of transesterification reaction tower by pipeline, the bottom discharge end of knockout tower connects the purification tower feed end, the top of purification tower is connected with the 3rd condenser, and the 3rd condenser connects respectively the Methyl ethyl carbonate collection device, the diethyl carbonate collection device.
Described the first condenser, the second condenser, the 3rd condenser all are connected with cooling tower.The bottom of described transesterification reaction tower is connected with the combustion-type boiler.
The advantage that the utlity model has is:
The production equipment of a kind of novel Methyl ethyl carbonate that the utility model proposes, its reasonable in design, can realize continuously feeding reaction, separation, purification process, and the cooperation of effectively controlling reaction raw materials methylcarbonate and dehydrated alcohol by surge tank flow when, the utilization ratio of the reaction raw materials that effectively improves by the distillate drum of setting up simultaneously.
Description of drawings
Fig. 1 is the structural representation of the production equipment of a kind of novel Methyl ethyl carbonate that provides of the utility model.
Among the figure: 1-transesterification reaction tower; The 2-surge tank; 3-dimethyl carbonate opening for feed; 4-dehydrated alcohol opening for feed; The 5-catalyst charging hole; 6-the first condenser; The 7-methanol collection device; The 8-distillate drum; The 9-knockout tower; 10-the second condenser; The 11-purification tower; 12-the 3rd condenser; 13-Methyl ethyl carbonate collection device; 14-diethyl carbonate collection device; The 15-cooling tower; 16-combustion-type boiler.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the utility model and being implemented, but illustrated embodiment is not as to restriction of the present utility model.
The utility model provides a kind of production equipment of novel Methyl ethyl carbonate, as shown in Figure 1, comprise transesterification reaction tower 1 in this production equipment, the middle part feed end of this transesterification reaction tower 1 is connected with dimethyl carbonate opening for feed 3, dehydrated alcohol opening for feed 4 respectively by surge tank 2, can finish the when control of flow of cooperation of dimethyl carbonate and dehydrated alcohol by surge tank 2.The top of transesterification reaction tower 1 is provided with catalyst charging hole 5, adds the required catalyzer of reaction by catalyst charging hole 5, and this catalyzer is preferably sodium ethylate.Wherein the top of transesterification reaction tower 1 is connected with the first condenser 6, connect respectively methanol collection device 7, distillate drum 8 by the first condenser 6, collect the byproduct methyl alcohol of reaction in the transesterification reaction tower 1 by methanol collection device 7, and collect condensed cut (being light constituent) by distillate drum 8.The bottom discharge end of transesterification reaction tower 1 connects the feed end of knockout tower 9, restructuring in the transesterification reaction tower 1 divided to enter in the knockout tower 9 by discharge end separate, to recombinate by knockout tower 9 and minute to separate, the top of knockout tower 9 is connected with the second condenser 10, the second condenser 10 also is connected with distillate drum 8, the cut that produces after knockout tower 9 separates enters distillate drum 8 after by 10 condensations of the second condenser, by the second condenser 10 with condensed fraction collection to distillate drum 8, and distillate drum 8 also connects the feed end of transesterification reaction tower 1 by pipeline, make the cut in the distillate drum 8 return to participation reaction in the transesterification reaction tower 1, be able to effective recycling.The bottom discharge end of knockout tower 9 connects the feed end of purification tower 11, in purification tower 11, product is further purified, the top of purification tower 11 is connected with the 3rd condenser 12, connect respectively Methyl ethyl carbonate collection device 13, diethyl carbonate collection device 14 by the 3rd condenser 12, collect Methyl ethyl carbonate and the diethyl carbonate that after condenser condenses, produces by Methyl ethyl carbonate collection device 13, diethyl carbonate collection device 14.Wherein the first condenser 6, the second condenser 10, the 3rd condenser 12 all are connected with cooling tower 15.Transesterification reaction tower 1 bottom is connected with combustion-type boiler 16, obtains the required heat of transesterification reaction by combustion-type boiler 16.In the production equipment of the present utility model, by in transesterification reaction tower 1, knockout tower 9 and purification tower 11, carrying out transesterification reaction, isolation technique and purification techniques in turn, obtain main products Methyl ethyl carbonate of the present utility model, can also obtain methyl alcohol and diethyl carbonate DEC simultaneously.
The above embodiment is the preferred embodiment that proves absolutely that the utility model is lifted, and protection domain of the present utility model is not limited to this.Being equal to that those skilled in the art do on the utility model basis substitutes or conversion, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (3)
1. the production equipment of a novel Methyl ethyl carbonate, it is characterized in that: this production equipment comprises the transesterification reaction tower, the feed end of this transesterification reaction tower by surge tank respectively with the dimethyl carbonate opening for feed, the dehydrated alcohol opening for feed is connected, the transesterification reaction tower is provided with catalyst charging hole, the top of transesterification reaction tower is connected with the first condenser, connect respectively methanol collection device by the first condenser, distillate drum, the bottom discharge end of transesterification reaction tower connects the feed end of knockout tower, the top of knockout tower is connected with the second condenser, the second condenser also links to each other with distillate drum, and distillate drum connects the feed end of transesterification reaction tower by pipeline, the bottom discharge end of knockout tower connects the purification tower feed end, the top of purification tower is connected with the 3rd condenser, and the 3rd condenser connects respectively the Methyl ethyl carbonate collection device, the diethyl carbonate collection device.
2. the production equipment of a kind of novel Methyl ethyl carbonate according to claim 1, it is characterized in that: described the first condenser, the second condenser, the 3rd condenser all are connected with cooling tower.
3. the production equipment of a kind of novel Methyl ethyl carbonate according to claim 1, it is characterized in that: the bottom of described transesterification reaction tower is connected with the combustion-type boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472481 CN202766434U (en) | 2012-09-17 | 2012-09-17 | Novel device for producing ethyl methyl carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472481 CN202766434U (en) | 2012-09-17 | 2012-09-17 | Novel device for producing ethyl methyl carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202766434U true CN202766434U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220472481 Expired - Fee Related CN202766434U (en) | 2012-09-17 | 2012-09-17 | Novel device for producing ethyl methyl carbonate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202766434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439857A (en) * | 2015-12-09 | 2016-03-30 | 辽阳百事达化工有限公司 | Method and apparatus for producing methyl ethyl carbonate |
-
2012
- 2012-09-17 CN CN 201220472481 patent/CN202766434U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439857A (en) * | 2015-12-09 | 2016-03-30 | 辽阳百事达化工有限公司 | Method and apparatus for producing methyl ethyl carbonate |
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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 |
Granted publication date: 20130306 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |