CN206799477U - A kind of methyl ethyl carbonate and diethyl carbonate combined production device - Google Patents
A kind of methyl ethyl carbonate and diethyl carbonate combined production device Download PDFInfo
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- CN206799477U CN206799477U CN201720694188.3U CN201720694188U CN206799477U CN 206799477 U CN206799477 U CN 206799477U CN 201720694188 U CN201720694188 U CN 201720694188U CN 206799477 U CN206799477 U CN 206799477U
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Abstract
The utility model discloses a kind of methyl ethyl carbonate,Diethyl carbonate combined production device,It includes reaction tower,Knockout tower,Crude tower,EMC rectifying columns,DEC rectifying columns,Reaction tower is provided with material inlet,Catalyst inlet,Described material inlet is arranged on reaction tower upper end,Rectifying section is disposed with reaction tower up and down,Stripping section,Gas gas-phase objects export mouth is provided with the top of reaction tower,Stripping section liquid outlet is connected with knockout tower,Stripping section is provided with knockout tower,Gas-liquid separation is carried out to the material of initial gross separation,Separation column is provided with return duct and is connected with reaction tower upper end,The liquid outlet of knockout tower lower end is connected by pipeline with crude tower,Rectifying section is provided with crude tower,Upper end is that EMC outlets are connected with EMC treating columns,Lower end is that DEC outlets are connected with DEC treating columns,Described EMC rectifying columns,DEC rectifying columns are intermittent fractionation tower,Compared to more existing process unit,Energy consumption can be effectively reduced,Improve product quality,Technical process is simple and reliable,Considerably increase the market competitiveness.
Description
Technical field
Chemical technology field is the utility model is related to, specifically a kind of methyl ethyl carbonate and diethyl carbonate coproduction dress
Put.
Background technology
A kind of fine solvent of methyl ethyl carbonate category lithium-ion battery electrolytes, its water white transparency is not soluble in water, belongs to easy burning
Product, with the development of battery electrolyte industry, the market demand of methyl ethyl carbonate is more and more.At present, methyl ethyl carbonate
Generation method is：Ester exchange reaction, its device produced include the equipment such as reaction tower, DMC separators, rectifier unit, tradition
Production technology and process units existing for technical problem be that production technology is poor, equipment generally requires 6-9 consersion unit
Complete, product energy consumption is high, and cost is high, and the market competitiveness is little.
The content of the invention
To solve above-mentioned technical problem, the utility model provides a kind of methyl ethyl carbonate, diethyl carbonate connection
Device is produced, energy consumption can be effectively reduced, improves product quality, technical process is simple and reliable, considerably increases market competition
Power.
Technical scheme is used by the utility model：
A kind of methyl ethyl carbonate, diethyl carbonate combined production device it include reaction tower, knockout tower, crude tower, EMC rectifying
Tower, DEC rectifying columns, reaction tower are provided with material inlet, catalyst inlet, and described material inlet is arranged on reaction tower upper end,
Rectifying section, stripping section are disposed with reaction tower up and down, gas gas-phase objects export mouth, stripping section liquid outlet are provided with the top of reaction tower
It is connected with knockout tower, stripping section is provided with knockout tower, gas-liquid separation is carried out to the material of initial gross separation, separation column is set
There is return duct to be connected with reaction tower upper end, the liquid outlet of knockout tower lower end is connected by pipeline with crude tower, is set in crude tower
There is rectifying section, upper end is that EMC outlets are connected with EMC treating columns, and lower end is that DEC outlets are connected with DEC treating columns, described EMC
Rectifying column, DEC rectifying columns are intermittent fractionation tower.
Described reaction tower is the home court institute of ester exchange reaction, and tower top DMC separated with methanol into rectifying section, first
Alcohol, ethanol and azeotropic mixture are guided by top gaseous phase thing export mouth, and the kettle material after stripping section enters knockout tower, in knockout tower
Separation after light component material, return to reaction tower through return duct, kettle material is DEC and EMC enters crude tower, slightly
Divide tower separation EMC and DEC, top gaseous phase material enters EMC treating columns, and kettle material DEC enters DEC
Treating column.
The beneficial effects of the utility model are：
This reaction key reaction compares traditional process units to be similarly ester exchange reaction, and simple production process can
Lean on, key reaction is DMC and ethanol synthesis, produces EMC and DEC, and methanol and DMC separation are total to using methanol and DMC pressurization
Boiling technology is separated, and the device is estimated to produce 10000 tons of mixed ester per year：5000 tons of diethylester, 5000 tons of methyl ethyl ester, energy-conservation drop
Consumption, environmental protection.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Embodiment
A kind of methyl ethyl carbonate as shown in Figure 1, diethyl carbonate combined production device it include reaction tower 1, knockout tower 2,
Crude tower 3, EMC rectifying columns 4, DEC rectifying columns 5, reaction tower are provided with material inlet 6, catalyst inlet, described material inlet
6 are arranged on the upper end of reaction tower 1, are disposed with rectifying section, stripping section in reaction tower 1 up and down, and the top of reaction tower 1 is provided with gas phase
Thing export mouth 7, stripping section liquid outlet are connected with knockout tower 2, and stripping section is provided with knockout tower 2, and the material of initial gross separation is entered
Row gas-liquid separation, the top of knockout tower 2 are provided with return duct 8 and are connected with the upper end of reaction tower 1, and the liquid outlet of the lower end of knockout tower 2 passes through
Pipeline is connected with crude tower 3, and rectifying section is provided with crude tower 3, and upper end is that EMC outlets are connected with EMC treating columns 4, and lower end is
DEC outlets are connected with DEC treating columns 5, and described EMC rectifying columns 4, DEC rectifying columns 5 are intermittent fractionation tower.
Described reaction tower 1 is the home court institute of ester exchange reaction, and tower top DMC separated with methanol into rectifying section, first
Alcohol, ethanol and azeotropic mixture are guided by top gaseous phase thing export mouth 7, and the kettle material after stripping section enters knockout tower 2, knockout tower
Light component material after separation in 2, reaction tower 1 is returned to through return duct 8, kettle material is that DEC and EMC enters rough segmentation
Tower 3, crude tower 3 separate EMC and DEC, and top gaseous phase material enters EMC treating columns 4, and kettle material DEC enters
Enter DEC treating columns 5.
Described above is only preferred embodiment of the present utility model, it is noted that for the ordinary skill of technical field
For personnel, on the premise of the utility model principle is not departed from, some improvement can also be made, wound is not being paid in these improvement
The scope of protection of the utility model is also should be regarded as under the premise of the property made work.
Claims (1)
1. a kind of methyl ethyl carbonate, diethyl carbonate combined production device, it is characterized in that：It include reaction tower, knockout tower, crude tower,
EMC rectifying columns, DEC rectifying columns, reaction tower are provided with material inlet, catalyst inlet, and described material inlet is arranged on reaction
Tower upper end, rectifying section, stripping section are disposed with reaction tower up and down, gas gas-phase objects export mouth, stripping are provided with the top of reaction tower
Section liquid outlet is connected with knockout tower, and stripping section is provided with knockout tower, and gas-liquid separation, knockout tower are carried out to the material of initial gross separation
Top is provided with return duct and is connected with reaction tower upper end, and the liquid outlet of knockout tower lower end is connected by pipeline with crude tower, rough segmentation
Rectifying section is provided with tower, upper end is that EMC outlets are connected with EMC treating columns, and lower end is that DEC outlets are connected with DEC treating columns, institute
EMC rectifying columns, the DEC rectifying columns stated are intermittent fractionation tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720694188.3U CN206799477U (en) | 2017-06-15 | 2017-06-15 | A kind of methyl ethyl carbonate and diethyl carbonate combined production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720694188.3U CN206799477U (en) | 2017-06-15 | 2017-06-15 | A kind of methyl ethyl carbonate and diethyl carbonate combined production device |
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| Publication Number | Publication Date |
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| CN206799477U true CN206799477U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720694188.3U Active CN206799477U (en) | 2017-06-15 | 2017-06-15 | A kind of methyl ethyl carbonate and diethyl carbonate combined production device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380692A (en) * | 2022-03-23 | 2022-04-22 | 天津科技大学 | Preparation method of energy-saving electronic grade carbonic ester |
-
2017
- 2017-06-15 CN CN201720694188.3U patent/CN206799477U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380692A (en) * | 2022-03-23 | 2022-04-22 | 天津科技大学 | Preparation method of energy-saving electronic grade carbonic ester |
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