CN205258352U - A refined purification device for continuous production battery level dimethyl carbonate - Google Patents
A refined purification device for continuous production battery level dimethyl carbonate Download PDFInfo
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- CN205258352U CN205258352U CN201520895893.0U CN201520895893U CN205258352U CN 205258352 U CN205258352 U CN 205258352U CN 201520895893 U CN201520895893 U CN 201520895893U CN 205258352 U CN205258352 U CN 205258352U
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Abstract
The utility model relates to a refined purification device for continuous production battery level dimethyl carbonate, its technical scheme is: the overhead condenser is connected at the top of lightness -removing column, the lightness -removing column is connected through first return tank and first backwash pump to the overhead condenser, light export is taken off in the overhead condenser connection, first reboiler is connected to the bottom of lightness -removing column, the rectifying column is carried to raw materials after first reboiler will take off gently through tower cauldron pump, the rectifying column passes through the rectifying column condenser and connects the second return tank, the second return tank passes through the second backwash pump and connects the rectifying column, the bottom of disconnect -type tower cauldron is passed through the second reboiler and is connected second tower cauldron pump, the centre of disconnect -type tower cauldron is adopted the pump through the side and is connected the side line condenser, the beneficial effects of the utility model are that: the problem of traditional mode of production technology product purity low, the yield low, the energy consumption is high and produce pollutant useless admittedly is solved, after the treating column purification was refined, dimethyl carbonate product purity brought up to more than 99.99% process lightness -removing column desorption light component again.
Description
Technical field
The utility model relates to a kind of chemical purification process equipment and method, particularly a kind of refining purifying plant for continuous production LITHIUM BATTERY dimethyl carbonate.
Background technology
LITHIUM BATTERY dimethyl carbonate is important industrial chemicals, as the main component of lithium-ion battery electrolytes, along with the development of electronic product, new-energy automobile industry, the demand of electrolyte increases day by day, also more and more higher to the requirement of LITHIUM BATTERY dimethyl carbonate product quality. Major impurity in technical grade dimethyl carbonate is water, methyl alcohol, ethanol, methyl ethyl carbonate, heavy constituent impurity etc. Alcohols and water affect the service life of lithium ion battery, the variable color of heavy constituent impurity effect electrolyte, and therefore the necessary purity index that improves dimethyl carbonate, reduces various impurity contents. The method of purification of LITHIUM BATTERY dimethyl carbonate has freeze crystallization, absorption method, batch fractionating method etc., but all exist, yield is low, energy consumption is high, produce the shortcomings such as solid waste.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of refining purifying plant for continuous production LITHIUM BATTERY dimethyl carbonate is provided, by providing the one can industrialized continuous rectificating technique flow process, by control tower operating parameter, obtain highly purified LITHIUM BATTERY dimethyl carbonate product.
Its technical scheme is: comprise lightness-removing column, overhead condenser, the first return tank, rectifying column, the second tower reactor pump, rectifying column condenser, side line condenser, the second return tank, the first reboiler, the second reboiler, the first reflux pump, tower reactor pump, side is adopted pump, the second reflux pump, the top of lightness-removing column connects overhead condenser, overhead condenser is connected lightness-removing column by the first return tank with the first reflux pump, overhead condenser connects de-light outlet, the bottom of lightness-removing column connects the first reboiler, the first reboiler is transported to rectifying column by tower reactor pump by the raw material after taking off gently, rectifying column connects the second return tank by rectifying column condenser, the second return tank connects rectifying column by the second reflux pump, the bottom of separate type tower reactor connects the second tower reactor pump by the second reboiler, the centre of separate type tower reactor is adopted pump by side and is connected side line condenser.
Above-mentioned lightness-removing column is packed tower, and the number of plates in lightness-removing column is 50.
Above-mentioned rectifying column is packed tower, and the number of plates in rectifying column is 60.
The beneficial effects of the utility model are: solved that traditional processing technology product purity is low, yield is low, energy consumption is high and produced the problem of solid waste pollutant, remove light component again after treating column purification through lightness-removing column, dimethyl carbonate product purity is brought up to more than 99.99%, water content drops to below 30ppm, total alcohol content drops to below 20ppm, after purification, LITHIUM BATTERY dimethyl carbonate production marketing price improves, greatly improve the economic benefit of device, simultaneously, adopt continuous production technology, solved complex operation, defect that energy consumption is high.
Brief description of the drawings
Accompanying drawing 1 is process chart of the present utility model;
Lightness-removing column 1, overhead condenser 2, the first return tank 3, rectifying column 4, the second tower reactor pump 5, rectifying column condenser 6, side line condenser 7, the second return tank 8, the first reboiler 9, the second reboiler 10, the first reflux pump 11, tower reactor pump 12, side are adopted pump 13, the second reflux pump 14.
Detailed description of the invention
By reference to the accompanying drawings 1, the utility model will be further described:
A kind of refining purifying plant for continuous production LITHIUM BATTERY dimethyl carbonate that the utility model is mentioned, comprises lightness-removing column 1, overhead condenser 2, the first return tank 3, rectifying column 4, the second tower reactor pump 5, rectifying column condenser 6, side line condenser 7, the second return tank 8, the first reboiler 9, the second reboiler 10, the first reflux pump 11, tower reactor pump 12, side is adopted pump 13, the second reflux pump 14, the top of lightness-removing column 1 connects overhead condenser 2, overhead condenser 2 is connected lightness-removing column 1 by the first return tank 3 with the first reflux pump 11, overhead condenser 2 connects de-light outlet, the bottom of lightness-removing column 1 connects the first reboiler 9, the first reboiler 9 is transported to rectifying column 4 by tower reactor pump 12 by the raw material after taking off gently, rectifying column 4 connects the second return tank 8 by rectifying column condenser 6, the second return tank 8 connects rectifying column 4 by the second reflux pump 14, the bottom of separate type tower reactor 5 connects the second tower reactor pump 5 by the second reboiler 10, and the centre of separate type tower reactor 5 is adopted pump 13 by side and connected side line condenser 7.
Wherein, lightness-removing column 1 is packed tower, and the number of plates in lightness-removing column 1 is 50; Rectifying column 4 is packed tower, and the number of plates in rectifying column 4 is 60.
Method of purification of the present utility model is: this device adopts technical grade dimethyl carbonate as raw material, adopts the refining purification LITHIUM BATTERY dimethyl carbonate product of continuity method, comprises the following steps:
A) raw material charging: deliver to lightness-removing column 1 from the raw material feed carbon dimethyl phthalate of technical grade carbonate device DMC treating column tower reactor extraction by dehvery pump, material, from the middle and upper part charging of lightness-removing column 1, is controlled inlet amount 1500Kg/h;
B) lightness-removing column operation: the tower top operating temperature of controlling lightness-removing column 1 is 50 DEG C～100 DEG C, lightness-removing column tower reactor operating temperature is 60 DEG C～110 DEG C, lightness-removing column 1 tower top operating pressure: 60KPa～150KPa, reflux ratio control: 20～40, the dimethyl carbonate material that contains light component impurity that lightness-removing column 1 tower top obtains, purity assay is greater than 99.8%, when the moisture 200ppm of being less than, directly enter technical grade dimethyl carbonate product storage tank, purifies and uses in order to next step; As purity lower than 99.8% or the moisture 200ppm of being greater than return to further refining purification of lightness-removing column 1, the dimethyl carbonate material that tower reactor obtains removing light component impurity is delivered to rectifying column 4 through tower reactor pump 12;
C) product output operation: the dimethyl carbonate material producing in above-mentioned steps enters in rectifying column 4, control rectifying column 4 tower top operating temperatures: 50 DEG C～100 DEG C, 60 DEG C～110 DEG C of the tower reactor operating temperatures of rectifying column 4, rectifying column 4 tower top operating pressure: 60KPa～150KPa, reflux ratio control: 10-30, the dimethyl carbonate material containing a small amount of impurity that rectifying column 4 tower tops obtain enters in technical grade dimethyl carbonate product storage tank, rectifying column 4 tower reactor material assay purity are greater than 99.8%, and the moisture 200ppm of being less than enters technical grade dimethyl carbonate product storage tank; Purity lower than 99.8% or the moisture material higher than 200ppm enter rectifying column 4 by the second return tank 8, the second reflux pump 14, return to the extraction of the refining workshop section of technical grade dimethyl carbonate, side line extraction purity by rectifying column 4 is higher than 99.99%, the moisture 30ppm that is less than, methyl alcohol and total ethanol content are less than the LITHIUM BATTERY dimethyl carbonate product of 20ppm, adopt pump 13 be connected to side line condenser 7 and collect by the side on side line.
Wherein, raw material feed carbon dimethyl phthalate purity is more than 99.95%.
Wherein, raw material feed entrance point is the 50th block of column plate of lightness-removing column 1 inner column plate.
The above, be only part preferred embodiment of the present utility model, and any those of ordinary skill in the art all may utilize the technical scheme correct of above-mentioned elaboration or are revised as the technical scheme being equal to. Therefore, any simple modification of carrying out according to the technical solution of the utility model or be equal to displacement, belongs to the greatest extent the claimed scope of the utility model.
Claims (3)
1. for a refining purifying plant for continuous production LITHIUM BATTERY dimethyl carbonate, it is characterized in that: comprise lightness-removing column (1), overhead condenser (2), the first return tank (3), rectifying column (4), the second tower reactor pump (5), rectifying column condenser (6), side line condenser (7), the second return tank (8), the first reboiler (9), the second reboiler (10), the first reflux pump (11), tower reactor pump (12), side is adopted pump (13), the second reflux pump (14), the top of lightness-removing column (1) connects overhead condenser (2), overhead condenser (2) is connected lightness-removing column (1) by the first return tank (3) with the first reflux pump (11), overhead condenser (2) connects de-light outlet, the bottom of lightness-removing column (1) connects the first reboiler (9), the first reboiler (9) is transported to rectifying column (4) by tower reactor pump (12) by the raw material after taking off gently, rectifying column (4) connects the second return tank (8) by rectifying column condenser (6), the second return tank (8) connects rectifying column (4) by the second reflux pump (14), the bottom of separate type tower reactor (5) connects the second tower reactor pump (5) by the second reboiler (10), and the centre of separate type tower reactor (5) is adopted pump (13) by side and connected side line condenser (7).
2. a kind of refining purifying plant for continuous production LITHIUM BATTERY dimethyl carbonate according to claim 1, is characterized in that: described lightness-removing column (1) is packed tower, and the number of plates in lightness-removing column (1) is 50.
3. a kind of refining purifying plant for continuous production LITHIUM BATTERY dimethyl carbonate according to claim 1, is characterized in that: described rectifying column (4) is packed tower, and the number of plates in rectifying column (4) is 60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895893.0U CN205258352U (en) | 2015-11-11 | 2015-11-11 | A refined purification device for continuous production battery level dimethyl carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895893.0U CN205258352U (en) | 2015-11-11 | 2015-11-11 | A refined purification device for continuous production battery level dimethyl carbonate |
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| Publication Number | Publication Date |
|---|---|
| CN205258352U true CN205258352U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520895893.0U Withdrawn - After Issue CN205258352U (en) | 2015-11-11 | 2015-11-11 | A refined purification device for continuous production battery level dimethyl carbonate |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384639A (en) * | 2015-11-11 | 2016-03-09 | 东营市海科新源化工有限责任公司 | Refining purifying device and method used for continuously producing battery grade dimethyl carbonate |
-
2015
- 2015-11-11 CN CN201520895893.0U patent/CN205258352U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384639A (en) * | 2015-11-11 | 2016-03-09 | 东营市海科新源化工有限责任公司 | Refining purifying device and method used for continuously producing battery grade dimethyl carbonate |
| CN105384639B (en) * | 2015-11-11 | 2017-07-14 | 东营市海科新源化工有限责任公司 | Refined purifying plant for continuously producing LITHIUM BATTERY dimethyl carbonate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160525 Effective date of abandoning: 20170714 |
|
| AV01 | Patent right actively abandoned |