CN202438166U - Separating device with partition wall for purifying tert-butyl acetate - Google Patents
Separating device with partition wall for purifying tert-butyl acetate Download PDFInfo
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- CN202438166U CN202438166U CN2012200031805U CN201220003180U CN202438166U CN 202438166 U CN202438166 U CN 202438166U CN 2012200031805 U CN2012200031805 U CN 2012200031805U CN 201220003180 U CN201220003180 U CN 201220003180U CN 202438166 U CN202438166 U CN 202438166U
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- partition wall
- butyl acetate
- tert
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Abstract
The utility model relates to a separating device with a partition wall for purifying tert-butyl acetate. The separating device comprises a rectifying tower, wherein the inner middle part of the rectifying tower is provided with a partition wall which is used for partitioning the inner cavity of the rectifying tower into four regions; a region I is formed on the upper part of the partition wall; tower walls on one side of the top and one side of the upper part of the rectifying tower are provided with a gas phase outlet and a reflux inlet which are communicated with the region I; a liquid phase distributor is arranged in the rectifying tower at the bottom of the region I; a region II and a region III are formed on both sides of the partition wall respectively; a rectifying tower wall on one side of the region II is provided with a feeding hole which is communicated with the rectifying tower wall; a rectifying tower wall on one side of the region III is provided with an extraction hole which is communicated with the rectifying tower wall; a region IV is formed on the lower part of the partition wall; tower walls on one side of the bottom and one side of the lower part of the rectifying tower are provided with a liquid phase extraction hole and a gas phase return hole which are communicated with the region IV; and a gas phase distributor is arranged in the rectifying tower on the top of the region IV. According to the separating device, the purity of tert-butyl acetate can be over 99 percent by weight, and the energy consumption and equipment are reduced greatly.
Description
Technical field
The utility model belongs to compound separating mechanism, a kind ofly especially is applicable to that with acetic acid and isobutene be raw material, adopts direct conversion method to produce the separator of the purification tert-butyl acetate of tert-butyl acetate with the band partition wall.
Background technology
Mixture separation is the committed step of Chemical Manufacture, and equipment investment and operation energy consumption are the key indexs of extensive separation process.At present, along with the energy and price of steel product rise steadily, seek the minimum separation method of investment and energy consumption and seem particularly important.
Tert-butyl acetate is extensive day by day in the application in fields such as coating, solvent and medicine intermediate, and its demand also significantly improves.At present, tert-butyl acetate is a raw material with acetic acid and isobutene usually, adopts direct conversion method production, and in this method, tert-butyl acetate is purified to be needed can meet the demands through extracting tower, dealcoholize column with after treating column separates, and its energy consumption is higher, and flow process is longer, and equipment is more.
Summary of the invention
The purpose of the utility model is to improve to the shortcoming and the problem that exist in the background technology, and a kind of separator of economical and practical purification tert-butyl acetate with the band partition wall of rationally holding concurrently is provided.
The technical scheme of the utility model is a kind of in bulk putting of separation that comprises rectifying column of structure, and the middle part is provided with partition wall in its rectifying column, and partition wall is divided into four zones with the rectifying column inner chamber, promptly the I zone, II is regional, III is regional and IV is regional, wherein:
The I zone is arranged on partition wall top, and rectifying column top and top one side tower wall are provided with gaseous phase outlet and the reflux inlet that communicates with the I zone, is provided with liquid phase distributor in the rectifying column of bottom, I zone;
II zone and III zone are divided into the both sides of partition wall, and wherein the rectifying column wall of II zone one side is provided with the charging aperture that communicates with it, and the rectifying column wall of III zone one side is provided with the extraction mouth that communicates with it;
The IV zone is arranged on the partition wall bottom, and rectifier bottoms and bottom one side tower wall are provided with the liquid phase that communicates with the IV zone and extract mouth and gas phase return port out, is provided with the gas phase distributor in the rectifying column of top, IV zone.
Advantage of the utility model and beneficial effect:
The utility model can reach the purity of tert-butyl acetate more than the 99wt%, even can surpass 99.5wt%, and energy consumption and number of devices all have bigger reduction respectively than dealcoholize column in the traditional process and treating column scheme.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model user mode sketch map.
The specific embodiment
Can know that by Fig. 1,2 the utility model comprises rectifying column 14, the middle part is provided with partition wall 13 in its rectifying column 14, and partition wall 13 is divided into four zones with rectifying column 14 inner chambers, i.e. I zone 9, II zone 10, III zone 11 and IV zone 12, wherein:
I zone 9 is arranged on partition wall 13 tops, and rectifying column 14 tops and top one side tower wall are provided with the gaseous phase outlet 1 and reflux inlet 2 that communicates with I zone 9, is provided with liquid phase distributor 7 in the 9 bottom rectifying columns 14 of I zone;
II zone 10 and III zone 11 are divided into the both sides of partition wall 13, and wherein the rectifying column wall of II zone 10 1 sides is provided with the charging aperture 3 that communicates with it, and the rectifying column wall of III zone 11 1 sides is provided with the extraction mouth 4 that communicates with it;
IV zone 12 is arranged on partition wall 13 bottoms, and rectifying column 14 bottoms and bottom one side tower wall are provided with the liquid phase that communicates with IV zone 12 and extract mouth 5 and gas phase return port 6 out, is provided with gas phase distributor 8 in the 12 top rectifying columns 14 of IV zone.
The described charging aperture 3 of the utility model communicates with II zone 10, and the tert-butyl acetate material gets into II zone 10 prefractionations through charging aperture 3, and II zone 10 top gas phases are sent into I zone 9 rectifying, and II zone 10 bottom liquid phases are sent into IV zone 12 rectifying.Described I zone 9 is light component and tert-butyl acetate component separated region; Wherein gas phase is by gaseous phase outlet 1 extraction; And after condenser condenses is liquid, get into return tank, and its liquid phase is boosted a part as the light component extraction through pump, and all the other return I zone 9 through reflux inlet 2.The extraction mouth 4 in described III zone 11 is the extraction mouth of tert-butyl acetate component, and wherein extracting mouthful 4 tops out is stripping section, and its required gas phase provides by rising gas phase on extraction mouthful 4 bottoms; Extracting mouthful 4 bottoms out is rectifying section, and its required backflow provides by extracting mouthful 4 top decline liquid phases out.Described IV zone 12 is acetic acid component and tert-butyl acetate component separated region, and wherein a bottom liquid phases part is extracted mouthful 5 extraction as acetic acid component out by liquid phase, and a part is returned IV zone 12 through gas phase return port 6 after the reboiler heating.The backflow ratio in described liquid phase distributor 7 control II zones 10 and III zone 11.Described gas phase distributor 8 control II zones 10 and III zone 11 rising gas phase ratios.
The structural principle of the utility model:
The utility model is installed a partition wall in the vertical direction of common rectifying tower, and tower is divided into four parts.Wherein the I zone is positioned at partition wall top, and 1 gaseous phase outlet and 1 reflux inlet are arranged, and 1 liquid phase distributor is arranged at the bottom, is used to control II zone and III zone backflow ratio; The II zone is positioned at partition wall one side, and 1 charging aperture is arranged; The III zone is positioned at the partition wall opposite side, has 1 to extract mouth out; The IV zone is positioned at the partition wall bottom, has 1 liquid phase to extract mouth and 1 gas phase return port out, and 1 gas phase distributor is arranged at the top, is used to control II zone and III zone rising gas phase ratio.
The operation principle of the utility model:
The tert-butyl acetate charging gets into dividing wall column by the II zone and separates; I district top extraction gas phase gets into return tank after condenser condenses is liquid, its liquid phase is after pump boosts, and a part is as the light component extraction; All the other return top, I zone as backflow; An IV zone bottom liquid phases part is as the acetic acid component extraction, and a part is returned tower after the reboiler heating, III zone middle part extraction tert-butyl acetate component.
Specific as follows: the tert-butyl acetate charging is sent into dividing wall column II zone by charging aperture and is carried out prefractionation, and wherein required gas phase of stripping section and the required liquid phase of rectifying section are provided by I zone bottom liquid phases and top, IV zone gas phase respectively; Top, II zone gas phase gets into the further rectifying of I zone, with separating of realization light component and tert-butyl acetate component, wherein; The I zone is a rectifying section, and the top gas phase gets into return tank by the gaseous phase outlet extraction after condenser condenses is liquid; Its liquid phase is after pump boosts; A part is as the light component extraction, and all the other return top, I zone as refluxing by reflux inlet, and it is stripping section that III extracts mouthful top out in the zone; Its required gas phase provides by rising gas phase on the extraction mouthful bottom, and the tert-butyl acetate component is by extracting a mouthful extraction out; II zone bottom liquid phases gets into the further rectifying of IV zone, with separating of realization tert-butyl acetate component and acetic acid component, wherein; The IV zone is a stripping section; Required rising gas phase is provided by reboiler, and acetic acid component is extracted a mouthful extraction out by IV zone bottom liquid phases, and it is rectifying section that III extracts a mouthful bottom out in the zone; Its required backflow provides by extracting a mouthful top decline liquid phase out, and the tert-butyl acetate component is by extracting a mouthful extraction out.
The described embodiment of the utility model only is the description that the preferred implementation of the utility model is carried out; Be not that the utility model design and scope are limited; Under the prerequisite that does not break away from the utility model design philosophy, engineers and technicians make the technical scheme of the utility model in this area various modification and improvement all should fall into the protection domain of the utility model; The technology contents that the utility model is asked for protection all is documented in claims.
Claims (7)
1. the tert-butyl acetate of purifying is with the separator of being with partition wall; Comprise rectifying column (14); It is characterized in that the middle part is provided with partition wall (13) in the rectifying column (14); And partition wall (13) is divided into four zones with rectifying column (14) inner chamber, i.e. I zone (9), II zone (10), III zone (11) and IV regional (12), wherein:
I zone (9) is arranged on partition wall (13) top; Rectifying column (14) top and top one side tower wall are provided with gaseous phase outlet (1) and the reflux inlet (2) that communicates with I zone (9), are provided with liquid phase distributor (7) in I zone (9) the bottom rectifying column (14);
II zone (10) and III zone (11) are divided into the both sides of partition wall (13); Wherein the rectifying column wall of II zone (10) one sides is provided with the charging aperture (3) that communicates with it, and the rectifying column wall of III zone (11) one sides is provided with the extraction mouth (4) that communicates with it;
IV zone (12) is arranged on partition wall (13) bottom; Rectifying column (14) bottom and bottom one side tower wall are provided with the liquid phase that communicates with IV zone (12) and extract mouthful (5) and a gas phase return port (6) out, are provided with gas phase distributor (8) in IV zone (12) top rectifying column (14).
2. purification tert-butyl acetate according to claim 1 is with the separator of band partition wall; It is characterized in that described charging aperture (3) communicates with II zone (10); The tert-butyl acetate material gets into II zone (10) prefractionation through charging aperture (3); And (10) top, II zone gas phase sent into I zone (9) rectifying, II zone (10) bottom liquid phases is sent into IV zone (12) rectifying.
3. purification tert-butyl acetate according to claim 1 is with the separator of band partition wall; It is characterized in that described I zone (9) is light component and tert-butyl acetate component separated region; Wherein gas phase is by gaseous phase outlet (1) extraction; And after condenser condenses is liquid, get into return tank, and its liquid phase is boosted a part as the light component extraction through pump, and all the other return I zone (9) through reflux inlet (2).
4. purification tert-butyl acetate according to claim 1 is with the separator of band partition wall; The extraction mouth (4) that it is characterized in that described III zone (11) is the extraction mouth of tert-butyl acetate component; Wherein extracting mouthful (4) top out is stripping section, and its required gas phase provides by rising gas phase on extraction mouthful (4) bottom; Extracting mouthful (a 4) bottom out is rectifying section, and its required backflow provides by extracting mouthful (4) top decline liquid phase out.
5. purification tert-butyl acetate according to claim 1 is with the separator of band partition wall; It is characterized in that described IV zone (12) is acetic acid component and tert-butyl acetate component separated region; Wherein a bottom liquid phases part is extracted mouthful (a 5) extraction as acetic acid component out by liquid phase, and a part is returned IV zone (12) through gas phase return port (6) after the reboiler heating.
6. purification tert-butyl acetate according to claim 1 is characterized in that the backflow ratio in described liquid phase distributor (7) control II zone (10) and III zone (11) with the separator of band partition wall.
7. purification tert-butyl acetate according to claim 1 is characterized in that described gas phase distributor (8) control II zone (10) and III zone (11) rising gas phase ratio with the separator of band partition wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200031805U CN202438166U (en) | 2012-01-06 | 2012-01-06 | Separating device with partition wall for purifying tert-butyl acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200031805U CN202438166U (en) | 2012-01-06 | 2012-01-06 | Separating device with partition wall for purifying tert-butyl acetate |
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| Publication Number | Publication Date |
|---|---|
| CN202438166U true CN202438166U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200031805U Expired - Fee Related CN202438166U (en) | 2012-01-06 | 2012-01-06 | Separating device with partition wall for purifying tert-butyl acetate |
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| CN (1) | CN202438166U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104797551A (en) * | 2012-09-28 | 2015-07-22 | 陶氏环球技术有限公司 | Process for the production of high purity glycol esters |
| CN111100005A (en) * | 2019-12-22 | 2020-05-05 | 天津渤化永利化工股份有限公司 | Process method for separating and refining butyl butyrate by using partition plate tower |
| CN112552174A (en) * | 2020-12-23 | 2021-03-26 | 江门谦信化工发展有限公司 | Device and method for rectifying acetic ester |
-
2012
- 2012-01-06 CN CN2012200031805U patent/CN202438166U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104797551A (en) * | 2012-09-28 | 2015-07-22 | 陶氏环球技术有限公司 | Process for the production of high purity glycol esters |
| CN111100005A (en) * | 2019-12-22 | 2020-05-05 | 天津渤化永利化工股份有限公司 | Process method for separating and refining butyl butyrate by using partition plate tower |
| CN112552174A (en) * | 2020-12-23 | 2021-03-26 | 江门谦信化工发展有限公司 | Device and method for rectifying acetic ester |
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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: 20120919 Termination date: 20180106 |