CN202237310U - Distillation device for separating and purifying dimethyl nylon acid - Google Patents
Distillation device for separating and purifying dimethyl nylon acid Download PDFInfo
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- CN202237310U CN202237310U CN2011203870658U CN201120387065U CN202237310U CN 202237310 U CN202237310 U CN 202237310U CN 2011203870658 U CN2011203870658 U CN 2011203870658U CN 201120387065 U CN201120387065 U CN 201120387065U CN 202237310 U CN202237310 U CN 202237310U
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Abstract
The utility model discloses a distillation device for separating and purifying dimethyl nylon acid. The distillation device comprises a first distillation tower, a second distillation tower and a third distillation tower, wherein a separator is vertically arranged at the bottom of the second distillation tower; the lower cavity of the second distillation tower is cut into a first tower chamber which is positioned on one side of a material inlet and a second tower chamber on the other side of the material inlet; the material inlet of the second distillation tower is positioned below the top of the separator; a liquid-phase outlet of the first distillation tower and a liquid-phase outlet of the first tower chamber are respectively communicated with the material inlet of the second distillation tower and the material inlet of the third distillation tower; a gas-phase outlet of the second distillation tower, a liquid-phase outlet of the second tower chamber and a gas-phase outlet of the third distillation tower are respectively communicated with a first product storage tank, a second product storage tank and a third product storage tank. According to the distillation device, the dimethyl nylon acid is distilled and separated in three serially connected distillation towers in sequence, and three components are separated by one tower, so that the production process is shortened, the energy consumption is reduced, the production cost is reduced, and the equipment investment is reduced.
Description
Technical field
The utility model relates to the distillation equipment for purifying, relates in particular to a kind of being used for mixed two dimethyl phthalates separation preparation 1,4-dimethyl succinate, 1,5-dimethyl glutarate and 1, the distilling apparatus of 6-dimethyl adipate.
Background technology
1,4-dimethyl succinate, 1,5-dimethyl glutarate, 1,6-dimethyl adipate all are important chemical material.
1, the 4-dimethyl succinate is mainly used in food and uses spices, is used to prepare fruit and fruit wine class essence and pharmaceuticals industry, also is used for synthetic light stabilizer, high-grade paint, bactericide, medicine intermediate etc.; 1, the 5-dimethyl glutarate is mainly used in organic synthesis; 1, the 6-dimethyl adipate can be used for the raw material of synthetic intermediate, medicine, spices, as plasticizer and high boiling solvent; Or the main component of nylon acid dimethyl ester; Can be used as hydrogenation again and produce 1, the raw material of 6-hexylene glycol also can be used as the gas-chromatography standard substance.
Dibasic acid dimethyl ester is to mix the mixture that diacid and methanol esterification obtain with the accessory substance of producing adipic acid, also has the light component and the heavy ends of some in the mixture except three kinds of esters, obtain three kinds of higher ester classes of purity; Then need separate various components, traditional separated device separates five kinds of mixtures; Obtain three kinds of pure article, need four destilling towers, a tower to separate at least and remove light component; The bottoms material gets into two towers, two column overhead separate purify dimethyl succinate, two Tata substrate material get into three towers; Three column overhead separate purify dimethyl glutarate, three Tata substrate material get into four towers, four column overhead separate purify dimethyl adipate; Be heavy ends at the bottom of four Tatas, therefore, the traditional processing technology production procedure is complicated, equipment investment is big, production cost is high.
The utility model content
The utility model technical problem to be solved is: to the deficiency that prior art exists, the distilling apparatus that is used to separate mixed two dimethyl phthalates of purification that a kind of production procedure is short, equipment investment is little, production cost is low is provided.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of distilling apparatus that is used to separate mixed two dimethyl phthalates of purification; Comprise that the top is provided with gaseous phase outlet, bottom and is provided with liquid phase outlet, middle part and is provided with first, second and the 3rd destilling tower that material inlet, top are provided with refluxing opening; The bottom vertical of said after-fractionating tower is provided with dividing plate; The lower cavity of after-fractionating tower is divided into the first tower chamber that is positioned at material inlet one side and the second tower chamber of opposite side; The bottom of the said first tower chamber and the second tower chamber is respectively equipped with the first tower chamber liquid phase outlet and the second tower chamber liquid phase outlet; The material inlet of said after-fractionating tower is positioned at the below at said dividing plate top; The outlet of the liquid phase of said first destilling tower, the first tower chamber liquid phase outlet are communicated with said second and the material inlet of the 3rd destilling tower respectively, and the gaseous phase outlet of the gaseous phase outlet of said after-fractionating tower, the second tower chamber liquid phase outlet and the 3rd destilling tower is communicated with first, second and three products storage tank respectively.
Wherein, said first, second is communicated with condenser respectively with the gaseous phase outlet of the 3rd destilling tower, said second and the gaseous phase outlet of the 3rd destilling tower be communicated with said first and the three products storage tank through condenser respectively.
As a kind of improvement, the outlet of said each condenser is respectively equipped with the refluxing opening that return line is communicated with said first rectifying column, second rectifying column and the 3rd rectifying column.
Owing to adopted technique scheme, the beneficial effect of the utility model is:
The utility model separated mixed dibasic acid dimethyl ester is accomplished in three destilling towers of each other series connection successively, and wherein the bottom vertical of after-fractionating tower is provided with dividing plate, and the lower cavity of after-fractionating tower is divided into the first tower chamber that is positioned at material inlet one side and the second tower chamber of opposite side; Light component is separated from the first destilling tower cat head, and 1, the 4-dimethyl succinate is separated from the after-fractionating column overhead; 1, the 5-dimethyl glutarate separates 1 from bottom, the after-fractionating tower second tower chamber; The 6-dimethyl adipate is separated from the 3rd destilling tower cat head, and the heavy ends in the raw material are discharged at the bottom of tower, has realized separating three kinds of components with a tower; Thereby can realize isolating five kinds of components with three destilling towers; Compare prior art, not only shortened production procedure, reduced energy resource consumption; Reduce production cost, and reduced equipment investment.
The utility model adopts continuous still, and technology operates steadily, and the constant product quality homogeneous has been avoided the inconsistent phenomenon of quality between product different batches that batch process produces.
Description of drawings
Accompanying drawing is the structural representation of the embodiment of the invention;
Among the figure: 1. first destilling tower; 11. first gaseous phase outlet; 12. first material inlet; 13. first liquid phase outlet; 14. first refluxing opening; 2. after-fractionating tower; 21. second gaseous phase outlet; 22. second material inlet; 23. the second tower chamber liquid phase outlet; 24. the first tower chamber liquid phase outlet; 25. the first tower chamber; 26. the second tower chamber; 27. second refluxing opening; 28. dividing plate; 3. the 3rd destilling tower; 31. the 3rd gaseous phase outlet; 32. tertium quid material import; 33. the 3rd liquid phase outlet; 34. the 3rd refluxing opening; 4. condenser; 5. the first product storage tank; 6. the second product storage tank; 7. three products storage tank; 8. return line.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in accompanying drawing; A kind of distilling apparatus that is used to separate mixed two dimethyl phthalates of purification; Comprise first rectifying column 1, second rectifying column 2 and the 3rd rectifying column 3, the top of said first rectifying column 1, second rectifying column 2 and the 3rd rectifying column 3 is respectively equipped with first gaseous phase outlet 11, second gaseous phase outlet 21 and the 3rd gaseous phase outlet 31; Top is respectively equipped with first refluxing opening 14, second refluxing opening 27 and the 3rd refluxing opening 34; The middle part is respectively equipped with first material inlet 12, second material inlet 22 and tertium quid material import 32; The bottom vertical of said after-fractionating tower 2 is provided with dividing plate 28; The bottom that the lower cavity of after-fractionating tower 2 is divided into the second tower chamber, 26, the first destilling towers 1, the first tower chamber 25, the second tower chamber 26 and the 3rd destilling tower 3 of the first tower chamber 25 that is positioned at second material inlet, 22 1 sides and opposite side is respectively equipped with first liquid phase outlet, 13, the first tower chamber liquid phase outlet, 24, the second tower chamber liquid phase outlet the 23 and the 3rd liquid phase outlet 33; Second material inlet 22 of said after-fractionating tower 2 is positioned at the below at said dividing plate 28 tops; Said first liquid phase outlet, 13, the first tower chamber liquid phase outlet 24 is communicated with said second material inlet 22 and tertium quid material import 32 respectively; Said second gaseous phase outlet 21, second tower chamber liquid phase outlet the 23 and the 3rd gaseous phase outlet 31 are communicated with the first product storage tank 5, second product storage tank 6 and the three products storage tank 7 respectively; Said first gaseous phase outlet 11, second gaseous phase outlet 21 and the 3rd gaseous phase outlet 31 are communicated with condenser 4 respectively; Said second gaseous phase outlet 21 and the 3rd gaseous phase outlet 31 are communicated with said first product storage tank 5 and the three products storage tank 7 through condenser 4 respectively, and the outlet of said each condenser 4 is respectively equipped with said first refluxing opening 14 of return line 8 connections, second refluxing opening 27 and the 3rd refluxing opening 34.
The operation principle of the utility model is: raw material is mixed two dimethyl phthalates get into first destilling tower 1 of series connection each other from first material inlet 12; Light component is separated from first destilling tower, 1 cat head, first gaseous phase outlet 11; The bottoms material is discharged from second material inlet 22 from first liquid phase outlet 13 and is got into after-fractionating tower 2,1, and the 4-dimethyl succinate is separated from second gaseous phase outlet 21 of after-fractionating tower 2 cats head; After condenser 4 condensations, collect in the first product storage tank 5; 1, the 5-dimethyl glutarate is separated from the second tower chamber liquid phase outlet 23 of 26 bottoms, after-fractionating tower tower chambers 2 second, collects in the second product storage tank 6; The bottoms material of after-fractionating tower tower chambers 25 2 first is discharged from the first tower chamber liquid phase outlet 24; Get into the 3rd destilling tower 3,1 from tertium quid material import 32, the 6-dimethyl adipate is separated from the 3rd gaseous phase outlet 31 of the 3rd destilling tower 3 cats head; After condenser 4 condensations, collect in the three products storage tank 7, the three liquid phase outlet 33 of the heavy ends in the raw material at the bottom of tower discharged.In the still-process,, control temperature and distillation quality in each destilling tower through regulating the return valve adjusting reflux ratio that return line 8 is provided with.
Claims (3)
1. one kind is used to separate the distilling apparatus that purification mixes two dimethyl phthalates; It is characterized in that: comprise that the top is provided with gaseous phase outlet, bottom and is provided with liquid phase outlet, middle part and is provided with first, second and the 3rd destilling tower that material inlet, top are provided with refluxing opening; The bottom vertical of said after-fractionating tower is provided with dividing plate; The lower cavity of after-fractionating tower is divided into the first tower chamber that is positioned at material inlet one side and the second tower chamber of opposite side; The bottom of the said first tower chamber and the second tower chamber is respectively equipped with the first tower chamber liquid phase outlet and the second tower chamber liquid phase outlet; The material inlet of said after-fractionating tower is positioned at the below at said dividing plate top; The outlet of the liquid phase of said first destilling tower, the first tower chamber liquid phase outlet are communicated with said second and the material inlet of the 3rd destilling tower respectively, and the gaseous phase outlet of the gaseous phase outlet of said after-fractionating tower, the second tower chamber liquid phase outlet and the 3rd destilling tower is communicated with first, second and three products storage tank respectively.
2. the distilling apparatus that is used to separate mixed two dimethyl phthalates of purification as claimed in claim 1; It is characterized in that: said first, second is communicated with condenser respectively with the gaseous phase outlet of the 3rd destilling tower, said second and the gaseous phase outlet of the 3rd destilling tower be communicated with said first and the three products storage tank through condenser respectively.
3. as claimed in claim 1 being used to separated the distilling apparatus that purification mixes two dimethyl phthalates, and it is characterized in that: the outlet of said each condenser is respectively equipped with the refluxing opening that return line is communicated with said first rectifying column, second rectifying column and the 3rd rectifying column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203870658U CN202237310U (en) | 2011-10-12 | 2011-10-12 | Distillation device for separating and purifying dimethyl nylon acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203870658U CN202237310U (en) | 2011-10-12 | 2011-10-12 | Distillation device for separating and purifying dimethyl nylon acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237310U true CN202237310U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203870658U Expired - Lifetime CN202237310U (en) | 2011-10-12 | 2011-10-12 | Distillation device for separating and purifying dimethyl nylon acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202237310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965043A (en) * | 2013-02-04 | 2014-08-06 | 中国石油化工股份有限公司 | Method for separating mixed diacid dimethyl ester |
-
2011
- 2011-10-12 CN CN2011203870658U patent/CN202237310U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965043A (en) * | 2013-02-04 | 2014-08-06 | 中国石油化工股份有限公司 | Method for separating mixed diacid dimethyl ester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG YUANLI SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: WEIFANG YUANLI CHEMICAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 262404, Shandong province Weifang County Changle Zhu Liu Street Industrial Park (309 State Road 355 kilometers) Patentee after: Shandong Yuanli Technology Co., Ltd. Address before: 262404 No. 37 Industrial Zone, Zhu Liu street, Changle County, Shandong, Weifang Patentee before: Weifang City Yuanli Chemical Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |