CN202638026U - Intermittent rectification device capable of separating multiple components - Google Patents
Intermittent rectification device capable of separating multiple components Download PDFInfo
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- CN202638026U CN202638026U CN 201220294311 CN201220294311U CN202638026U CN 202638026 U CN202638026 U CN 202638026U CN 201220294311 CN201220294311 CN 201220294311 CN 201220294311 U CN201220294311 U CN 201220294311U CN 202638026 U CN202638026 U CN 202638026U
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Abstract
The utility model relates to an intermittent rectification device capable of separating multiple components. The intermittent rectification device comprises a reaction kettle, a rectification tower, re-boiling devices, a condenser, a crude product storage tank and a plurality of finished product storage tanks, and is characterized in that the bottom of a primary re-boiling device is connected with the crude product storage tank by a feeding pump; the top of a primary re-boiling device is connected with the middle of the rectification tower; the bottom of a secondary re-boiling device is connected with the bottom of the reaction kettle by a vacuum pump; the top of the secondary re-boiling device is connected with the upper part of the reaction kettle; the bottom of the rectification tower is communicated with the top of the reaction kettle; the top of the rectification tower is connected with the condenser with a hot water constant-temperature circulating system; an outlet end of the condenser is connected with the finished product storage tanks; and the tops of two finished product storage tanks are connected with a secondary vacuum pump by pipes. The intermittent rectification device has a simple structure and is easy to operate; when cyanide acetic acid ester is purified, other components can also be fully separated, therefore, the intermittent rectification device plays a role of rectifying multiple products; and moreover, a purification procedure is reduced, therefore, the working efficiency is greatly improved, the energy consumption is reduced, and the production cost is reduced.
Description
Technical field
The utility model belongs to the chemical production equipment technical field, is specifically related to a kind of separable multi-component batch rectification device.
Background technology
In chemical field, the universal method of producing cyanoacetate is to use the concentrated sulfuric acid as catalyst, and uses a large amount of alcohol as reactant and solvent.The thick ester purity that is synthesized through esterification is not high, wherein can be with the complete raw material of a large amount of solvents, accessory substance or unreacted, so must purify through methods such as later stage extraction, distillation, rectifying.At present, most of factory is to remove alcohol and water through common distillation first to the method for purification of cyanoacetate crude product, and accessory substance is removed in rectifying again.Cause like this that purification process is loaded down with trivial details, manipulation strength is large, efficient is low, energy resource consumption is large.In view of the foregoing, need to improve rectifier unit.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of simple in structure, easy to operate separable multi-component batch rectification device, in effective purification cyanoacetate, guarantee that other components are also fully separated, play the effect of simultaneously rectifying multiple product.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of separable multi-component batch rectification device, comprise reactor, rectifying column, reboiler, condenser, crude product storage tank and some finished product receiving tanks, and it is characterized in that:
Described reboiler is two, and wherein the bottom of one-level reboiler links to each other with the crude product storage tank by feed pump, and the top links to each other with the rectifying column middle part, and the bottom of secondary reboiler links to each other with the bottom of reactor by vavuum pump, and the top links to each other with reactor top;
The bottom of described rectifying column is communicated with the top of reactor, and the top links to each other with condenser with the hot water constant temperature circulatory system;
The port of export of described condenser links to each other with finished product storage tank, and the top of two finished product receiving tanks is connected with two-stage vacuum pump by pipeline therein.
As improvement, described condenser is comprised of first-stage condenser, secondary condenser and three grades of condensers of mutual series connection setting, and wherein first-stage condenser is connected with the top of described rectifying column, is parallel with the hot water constant temperature circulatory system in first-stage condenser.
At last, described finished product storage tank is four, the first finished product receiving tank wherein, be provided with surge tank between the second finished product receiving tank and three grades of condensers, the top of surge tank links to each other with three grades of condensers, and be provided with drainage tube between the two and draw rear the 3rd finished product receiving tank of inputting respectively, the 4th finished product receiving tank, described two-stage vacuum pump and the 3rd finished product receiving tank, the top of the 4th finished product receiving tank links to each other, the bottom of surge tank links to each other with the bottom of first-stage condenser by reflux line, and is provided with drainage tube between the two and draws the rear first finished product receiving tank of inputting respectively, in the second finished product receiving tank.
Compared with prior art, the utility model has the advantage of: by the condenser of the hot water constant temperature circulatory system is arranged at rectifying column top mounting strap, when making cyanoacetate obtain purifying, guarantee that other components are also fully separated, play the effect of simultaneously rectifying multiple product.The utility model is simple in structure, easy to operate, can realize simultaneously rectifying multiple product, and reduce purification process, has greatly improved operating efficiency, has saved energy consumption, has reduced production cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
A kind of separable multi-component batch rectification device, comprise reactor 1, rectifying column 2, one-level reboiler 3, secondary reboiler 4, first-stage condenser 5, secondary condenser 7, three grades of condensers 8, the hot water constant temperature circulatory system 6, two-stage vacuum pump 15, crude product storage tank 14, surge tank 9, four finished product receiving tanks etc., one-level reboiler 3 bottoms link to each other with crude product storage tank 14 by feed pump, and the top links to each other with the middle part of rectifying column 2; The bottom of secondary reboiler 4 links to each other with reactor 1 bottom by vavuum pump, and the top links to each other with the top of reactor 1; Rectifying column 2 bottoms are connected with the top of reactor 1, and the top links to each other with first-stage condenser 5 with the hot water constant temperature circulatory system 6; First-stage condenser 5 is by reflux line and secondary condenser 7, three grades of condensers 8 are in series, the port of export of three grades of condensers 8 links to each other with the finished product receiving tank, at the first finished product receiving tank 10, be provided with surge tank 9 between the second finished product receiving tank 11 and three grades of condensers 8, the top of surge tank 9 links to each other with three grades of condensers 8, and be provided with drainage tube between the two and draw rear the input respectively in the 3rd finished product receiving tank 12 and the 4th finished product receiving tank 13, two-stage vacuum pump 15 links to each other with the top of the 3rd finished product receiving tank 12 and the 4th finished product receiving tank 13 respectively by pipeline, the bottom of surge tank 9 links to each other by the bottom of reflux line with first-stage condenser 5, and is provided with drainage tube between the two and draws the rear first finished product receiving tank 10 of inputting respectively, in the second finished product receiving tank 11.
Distillation process is such: the cyanoacetate crude product enters rectifying column 2 middle parts from crude product storage tank 14 by one-level reboiler 3, low boiling component is heated to vaporize and is walked toward rectifying column 2 tops, high boiling component enters reactor 1, behind secondary reboiler 4 circulating-heatings, the partial condensation of repeatedly partly vaporizing through first-stage condenser 5, secondary condenser 7 and three grades of condensers 8, isolate first lower boiling alcohol, separate again water outlet, enter respectively the first finished product receiving tank 10, the second finished product receiving tank 11; By opening the hot water constant temperature circulatory system 6, temperature is controlled in the critical point that makes malonate and cyanoacetate reach gas-liquid separation, through the partial condensation of partly vaporizing, make difficult separation component reach effective separation, regulate vacuum by two-stage vacuum pump 15 again, the malonate that elder generation's decompression separation goes out is collected and is entered in the 3rd finished product receiving tank 12, and the cyanoacetate that rear decompression separation goes out enters in the 4th finished product receiving tank 13.
Claims (3)
1. a separable multi-component batch rectification device comprises reactor, rectifying column, reboiler, condenser, crude product storage tank and some finished product storage tank, it is characterized in that:
Described reboiler is two, and wherein the bottom of one-level reboiler links to each other with the crude product storage tank by feed pump, and the top links to each other with the rectifying column middle part, and the bottom of secondary reboiler links to each other with the bottom of reactor by vavuum pump, and the top links to each other with reactor top;
The bottom of described rectifying column is communicated with the top of reactor, and the top links to each other with condenser with the hot water constant temperature circulatory system;
The port of export of described condenser links to each other with finished product storage tank, and the top of two finished product storage tank is connected with two-stage vacuum pump by pipeline therein.
2. batch rectification device according to claim 1, it is characterized in that described condenser is comprised of first-stage condenser, secondary condenser and three grades of condensers of mutual series connection setting, wherein first-stage condenser is connected with the top of described rectifying column, is parallel with the hot water constant temperature circulatory system in first-stage condenser.
3. batch rectification device according to claim 2, it is characterized in that described finished product storage tank is four, the first finished product receiving tank wherein, be provided with surge tank between the second finished product receiving tank and three grades of condensers, the top of surge tank links to each other with three grades of condensers, and be provided with drainage tube between the two and draw rear the 3rd finished product receiving tank of inputting respectively, the 4th finished product receiving tank, described two-stage vacuum pump and the 3rd finished product receiving tank, the top of the 4th finished product receiving tank links to each other, the bottom of surge tank links to each other with the bottom of first-stage condenser by reflux line, and is provided with drainage tube between the two and draws the rear first finished product receiving tank of inputting respectively, in the second finished product receiving tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294311 CN202638026U (en) | 2012-06-19 | 2012-06-19 | Intermittent rectification device capable of separating multiple components |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294311 CN202638026U (en) | 2012-06-19 | 2012-06-19 | Intermittent rectification device capable of separating multiple components |
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| CN202638026U true CN202638026U (en) | 2013-01-02 |
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| CN 201220294311 Expired - Fee Related CN202638026U (en) | 2012-06-19 | 2012-06-19 | Intermittent rectification device capable of separating multiple components |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288601A (en) * | 2013-07-01 | 2013-09-11 | 湖南百利工程科技股份有限公司 | Cyclohexanol distillation method |
| CN103349846A (en) * | 2013-07-09 | 2013-10-16 | 浙江合盛硅业有限公司 | Device for rectifying and purifying decamethyl cyclopenta siloxane through organosilicon high boiling point compound and purifying process |
| CN109718573A (en) * | 2017-10-31 | 2019-05-07 | 天津帝锐科技有限公司 | A kind of energy-saving vacuum intermittent fractionation tower |
| CN114405041A (en) * | 2022-02-25 | 2022-04-29 | 明士新材料有限公司 | Rectification device and method for electronic-grade gamma-butyrolactone |
-
2012
- 2012-06-19 CN CN 201220294311 patent/CN202638026U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288601A (en) * | 2013-07-01 | 2013-09-11 | 湖南百利工程科技股份有限公司 | Cyclohexanol distillation method |
| CN103349846A (en) * | 2013-07-09 | 2013-10-16 | 浙江合盛硅业有限公司 | Device for rectifying and purifying decamethyl cyclopenta siloxane through organosilicon high boiling point compound and purifying process |
| CN103349846B (en) * | 2013-07-09 | 2015-04-01 | 浙江合盛硅业有限公司 | Device for rectifying and purifying decamethyl cyclopenta siloxane through organosilicon high boiling point compound and purifying process |
| CN109718573A (en) * | 2017-10-31 | 2019-05-07 | 天津帝锐科技有限公司 | A kind of energy-saving vacuum intermittent fractionation tower |
| CN114405041A (en) * | 2022-02-25 | 2022-04-29 | 明士新材料有限公司 | Rectification device and method for electronic-grade gamma-butyrolactone |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130102 Termination date: 20170619 |