CN204400883U - Pentamethylene diamine purification system - Google Patents
Pentamethylene diamine purification system Download PDFInfo
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- CN204400883U CN204400883U CN201420807159.XU CN201420807159U CN204400883U CN 204400883 U CN204400883 U CN 204400883U CN 201420807159 U CN201420807159 U CN 201420807159U CN 204400883 U CN204400883 U CN 204400883U
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Abstract
The utility model provides a kind of pentamethylene diamine purification system, comprises the retort, equipment for separating liquid from solid, evaporation unit, condensing works and the holding tank that connect successively.The purification system that the utility model provides is produced pentamethylene diamine for biological process and is designed, rational in infrastructure, directly, effectively can carry out evaporation purification to pentamethylene diamine crude product, production efficiency is high, gained pentamethylene diamine product purity is high, and equipment not corrosion-vulnerable, and energy consumption is little, cost is low, is specially adapted to industrialization scale operation.
Description
Technical field
The utility model relates to field of chemical equipment, is specifically related to a kind of purification system for suitability for industrialized production 1,5-pentamethylene diamine.
Background technology
The main application of 1,5-pentamethylene diamine comprises the preparation for superpolymer, as organic synthesis intermediate, epoxy curing agent etc., also can be used for biological study.Wherein, synthetic nylon polymkeric substance is an important application of pentamethylene diamine, sets out from 1,5-pentamethylene diamine, can the nylon product nylon 510 of synthetic nylon 56 or full bio-based, these products can be applied in the many aspects of the daily productive lifes such as electronic apparatus, mechanical means, trolley part.
Biological process is produced pentamethylene diamine and is referred to that pentamethylene diamine produces through decarboxylase decarboxylation through direct fermentation production or Methionin, is then separated from stock liquid and obtains target product.At present, the salts solution of pentamethylene diamine mostly is by the pentamethylene diamine crude product of Biological preparation, as vitriol, hydrochloride etc., then add the alkaline matters such as sodium hydroxide, potassium hydroxide, calcium hydroxide, ammonia and obtain pentamethylene diamine and salt, be separated by pentamethylene diamine and can obtain the pentamethylene diamine product after purifying, the method for separation can adopt the various ways such as extraction, evaporation.But current Biological preparation pentamethylene diamine is in the starting stage at home and abroad, there is no the production of industrially scalable, less to the preparation research of pentamethylene diamine finished product, pentamethylene diamine crude product is separated, purifying, the device of concentrated, rectifying and system also rarely have report.Existing chemical system does not have the special design for pentamethylene diamine purifying, certainly will affect production efficiency and the quality product of pentamethylene diamine.Because pentamethylene diamine has certain corrodibility, its fermentation broth contents is complicated, wherein a large amount of organic/inorganic impurity can be contained, its separating difficulty is very large, therefore production method and the production unit of other chemical of abstraction and purification in prior art is directly applied mechanically, when can cause evaporating pentamethylene diamine, production efficiency is lower, production cost is higher, not only can not be well separated, purification effect, and a large amount of salt can be produced in production pentamethylene diamine process, larger to the damage of equipment, maintenance cost is higher, therefore actual production is not suitable for, seriously constrain the application of pentamethylene diamine in nylon production and other field, therefore, the suitability for industrialized production of pentamethylene diamine has higher requirement for purification system, the equipment that needs exploitation matches with technique is to carry out the separation and purification of pentamethylene diamine.
Utility model content
For overcoming the defect lacking effective purification system in pentamethylene diamine suitability for industrialized production, the purpose of this utility model is to provide a kind of pentamethylene diamine purification system.
The pentamethylene diamine purification system that the utility model provides comprises the retort, equipment for separating liquid from solid, evaporation unit, condensing works and the holding tank that connect successively.
Wherein, described evaporation unit is scraper-type vaporizer.
Wherein, described condensing works is also connected with vacuum pump.
Wherein, surge tank is provided with between described condensing works and described vacuum pump.
Wherein, described equipment for separating liquid from solid is whizzer.
Wherein, described retort is connected to the pipeline for carrying pentamethylene diamine crude product and alkali lye.
Wherein, described equipment for separating liquid from solid is also connected with solid impurity holding tank.
In the purification system that the utility model provides, first in retort, make pentamethylene diamine salt crude product and alkaline matter react, obtain the aqueous solution of salt and free pentamethylene diamine, then enter in equipment for separating liquid from solid and remove solid impurity, remaining mixing solutions enters in evaporation unit, the mixing steam evaporating pentamethylene diamine and water wherein enters in condensing works, and cooling obtains the pentamethylene diamine aqueous solution after purifying under vacuo, is collected into holding tank and namely obtains pentamethylene diamine product.
The purification system that the utility model provides is produced pentamethylene diamine for biological process and is designed especially, project organization is reasonable, directly, effectively can carry out evaporation purification to pentamethylene diamine crude product, production efficiency is high, gained pentamethylene diamine product purity is high, and equipment not corrosion-vulnerable, energy consumption is little, cost is low, is specially adapted to industrialization scale operation.
The pentamethylene diamine mentioned in the utility model all refers to 1,5-pentamethylene diamine.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of pentamethylene diamine purification system described in the utility model;
Wherein, description of reference numerals is as follows: 1, retort; 2, equipment for separating liquid from solid; 3, evaporation unit; 4, condensing works; 5, holding tank; 6, surge tank; 7, vacuum pump; 8, pentamethylene diamine crude product pipeline; 9, alkali lye pipeline; 10, solid impurity holding tank.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, will be further described below the technical scheme of exemplary embodiment of the present utility model.
The utility model provides a kind of pentamethylene diamine purification system, as shown in Figure 1, flows to comprise the retort 1, equipment for separating liquid from solid 2, evaporation unit 3, condensing works 4 and the holding tank 5 that connect successively according to pipeline.
During above-mentioned pentamethylene diamine purification system work, by the pentamethylene diamine salt crude product of Biological preparation, (this crude product is after concentrated, pentamethylene diamine concentration is generally 20 ~ 40wt%) and alkali lye be delivered in retort 1 respectively, be obtained by reacting pentamethylene diamine and salt wherein, form the first mixing solutions containing free pentamethylene diamine, except free pentamethylene diamine, the thalline that the fermentation that contains in pentamethylene diamine salt crude product or enzymatic conversion step are brought into is also comprised in first mixing solutions, the solid impurities such as salt, and the indissoluble salt brought after adding alkali or unreacted alkaline matter, for ensureing carrying out smoothly of subsequent evaporation, solid impurity in first mixing solutions need be separated.First mixing solutions enters in equipment for separating liquid from solid 2 and carries out solid-liquid separation, and the solid impurity in the first mixing solutions is separated, and obtains the second mixing solutions containing pentamethylene diamine.Second mixing solutions enters in evaporation unit 3 again and is separated, and is heated by evaporation unit, and the water in the second mixing solutions and pentamethylene diamine form mixing steam.Mixing steam enters in condensing works 4, mixing steam is by condensing works 4 condensation, condensing temperature is between pentamethylene diamine and the boiling point of water, usually 60 ~ 150 degrees Celsius are set as, therefore, purity and the higher pentamethylene diamine aqueous solution of concentration can be obtained by condensation, remain water vapour and then can directly discharge.The pentamethylene diamine aqueous solution then collects storage by holding tank 5, and collecting the pentamethylene diamine concentration of aqueous solution obtained can reach more than 56%, even can reach more than 67%.According in an embodiment of pentamethylene diamine purification system of the present utility model, equipment for separating liquid from solid 2 is for separating the solid impurity in mixing solutions, equipment for separating liquid from solid can be the whizzer of chemical field any kind, it can also be the common equipment for separating liquid from solid such as flame filter press, bag filter, membrane filtration tripping device, consider industrial applicibility and cost control, the utility model preferably uses industrial centrifugal machine.
According in an embodiment of pentamethylene diamine purification system of the present utility model, evaporation unit 3 can be scraper-type vaporizer, and scraper-type evaporator heat exchange area is large, and heat exchange efficiency is high, effectively can promote vaporization efficiency, saves heat energy.The temperature of scraper evaporator can be set as 110 ~ 200 DEG C, and evaporating pressure can be set as-0.09MPa ~ 0MPa (gauge pressure).
According in an embodiment of pentamethylene diamine purification system of the present utility model, condensing works 4 can be the common condenser of chemical field.
According in an embodiment of pentamethylene diamine purification system of the present utility model, condensing works 4 is also connected with vacuum pump 7, and vacuum pump 7 can make to form negative pressure in condensing works, makes condensation effect better.
According in an embodiment of pentamethylene diamine purification system of the present utility model, also can be provided with surge tank 6 between condensing works 4 and vacuum pump 7, surge tank 6 can increase the volume of condensing works 4 splendid attire mixing steam, improves condensation process ability.
According in an embodiment of pentamethylene diamine purification system of the present utility model, retort 1 is connected with the pipeline 9 of the pipeline 8 and conveying alkali lye being respectively used to carry pentamethylene diamine crude product.
According in an embodiment of pentamethylene diamine purification system of the present utility model, centrifugal device 2 is also connected with solid impurity holding tank 10, can collect aftertreatment or recovery by the isolated solid impurity of centrifugal device 2 further by holding tank 10.
Embodiment
Enzymatic conversion liquid (preparing with lysine sulfate) containing pentamethylene diamine vitriol, after concentrated through the vapor phase process pentamethylene diamine concentration measured wherein be 22% (mass percent concentration, as being mass percent concentration below without illustrating).
Adopt the purification system that the utility model provides, first by pentamethylene diamine salt enzymatic conversion liquid, 50% aqueous sodium hydroxide solution be delivered to respectively in retort by pipeline, mixture pH value in retort is greater than 13.5, sodium hydroxide and pentamethylene diamine vitriol are obtained by reacting free pentamethylene diamine and the sodium sulfate of deprotonation wherein, form the first mixing solutions containing pentamethylene diamine and sodium sulfate salt.First mixing solutions enters in whizzer, and the solid impurities such as thalline wherein, salt are separated the second mixing solutions obtained containing pentamethylene diamine and sodium sulfate, and the solid impurity of separation is collected by solid impurity holding tank.Second mixing solutions enters in scraper evaporator and is separated, and the temperature of vaporizer is set as 180 DEG C, pressure setting is-0.085Mpa, and the water in the second mixing solutions and pentamethylene diamine form mixing steam.Mixing steam enters condensation mixing steam in condenser, condensing temperature is set to about 150 DEG C, between pentamethylene diamine condensing temperature and water condensation temperature, pass through condensation, pentamethylene diamine steam and small part water vapor are condensed into liquid state, formed concentration be greater than 67% the pentamethylene diamine aqueous solution, and by holding tank collect store, remaining water vapor then directly carries out discharging or reclaiming.
The purification system that the utility model provides effectively designs for suitability for industrialized production pentamethylene diamine, purification efficiency is high, for the pentamethylene diamine salt crude product of different concns, gained pentamethylene diamine concentration can reach 67% even higher, the purity of pentamethylene diamine is good, technical grade can be met use, pentamethylene diamine solution after purified can be directly used in nylon polymerization, also can be used as the preliminary step of rectifying, to reach the purity requirement of higher category, in addition, purification system is for equipment for separating liquid from solid, the load of the equipment such as evaporation unit is less, not corrosive equipment, running cost is low, not only energy-conservation and can enhance productivity.In a word, adopt purification system of the present utility model can high-level efficiency, high quality, low cost production pentamethylene diamine sterling, there is the immense value of industrial applications.
Although in order to the utility model is described, disclose preferred embodiment of the present utility model, but those skilled in the art is to be understood that, when not departing from the utility model design and scope that claims limit, various amendment, interpolation and replacement can be made to the utility model.
Claims (7)
1. a pentamethylene diamine purification system, comprises holding tank, it is characterized in that, also comprise the retort, equipment for separating liquid from solid, evaporation unit and the condensing works that connect successively, wherein said holding tank is connected with described condensing works.
2. 1,5-pentamethylene diamine purification system according to claim 1, is characterized in that, described evaporation unit is scraper-type vaporizer.
3. 1,5-pentamethylene diamine purification system according to claim 1 and 2, it is characterized in that, described condensing works is also connected with vacuum pump.
4. 1,5-pentamethylene diamine purification system according to claim 3, is characterized in that, be provided with surge tank between described condensing works and described vacuum pump.
5. 1,5-pentamethylene diamine purification system according to claim 1 and 2, is characterized in that, described equipment for separating liquid from solid is whizzer.
6. 1,5-pentamethylene diamine purification system according to claim 1 and 2, is characterized in that, described retort is connected to the pipeline for carrying 1,5-pentamethylene diamine crude product and alkali lye.
7. 1,5-pentamethylene diamine purification system according to claim 1 and 2, it is characterized in that, described equipment for separating liquid from solid is also connected with solid impurity holding tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420807159.XU CN204400883U (en) | 2014-12-17 | 2014-12-17 | Pentamethylene diamine purification system |
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| CN201420807159.XU CN204400883U (en) | 2014-12-17 | 2014-12-17 | Pentamethylene diamine purification system |
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| CN204400883U true CN204400883U (en) | 2015-06-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043333A (en) * | 2016-02-06 | 2017-08-15 | 上海凯赛生物技术研发中心有限公司 | A kind of method that 1,5- pentanediamines are extracted from the solution system of the salt of pentanediamine containing 1,5- |
| CN109956873A (en) * | 2017-12-25 | 2019-07-02 | 上海凯赛生物技术研发中心有限公司 | Pentanediamine fusion-crystallization technique |
| CN110372522A (en) * | 2019-07-30 | 2019-10-25 | 南京工业大学 | Method for stripping and recovering pentamethylene diamine from pentamethylene diamine-containing solid phase |
| CN110787472A (en) * | 2018-08-01 | 2020-02-14 | 上海凯赛生物技术股份有限公司 | Energy-saving circulating type pentanediamine concentration system and concentration method thereof |
-
2014
- 2014-12-17 CN CN201420807159.XU patent/CN204400883U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043333A (en) * | 2016-02-06 | 2017-08-15 | 上海凯赛生物技术研发中心有限公司 | A kind of method that 1,5- pentanediamines are extracted from the solution system of the salt of pentanediamine containing 1,5- |
| CN107043333B (en) * | 2016-02-06 | 2020-06-16 | 上海凯赛生物技术股份有限公司 | Method for extracting 1, 5-pentamethylene diamine from solution system containing 1, 5-pentamethylene diamine salt |
| CN109956873A (en) * | 2017-12-25 | 2019-07-02 | 上海凯赛生物技术研发中心有限公司 | Pentanediamine fusion-crystallization technique |
| CN109956873B (en) * | 2017-12-25 | 2022-05-10 | 上海凯赛生物技术股份有限公司 | Pentanediamine melt crystallization process |
| CN110787472A (en) * | 2018-08-01 | 2020-02-14 | 上海凯赛生物技术股份有限公司 | Energy-saving circulating type pentanediamine concentration system and concentration method thereof |
| CN110787472B (en) * | 2018-08-01 | 2024-02-13 | 上海凯赛生物技术股份有限公司 | Pentanediamine concentration system and concentration method |
| CN110372522A (en) * | 2019-07-30 | 2019-10-25 | 南京工业大学 | Method for stripping and recovering pentamethylene diamine from pentamethylene diamine-containing solid phase |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qin Bingbing Inventor after: Liu Chi Inventor after: Guo Shanshi Inventor after: Dai Duanfang Inventor after: Hou Benliang Inventor after: Liu Xiucai Inventor before: Qin Bingbing Inventor before: Liu Chi Inventor before: Guo Shanshi Inventor before: Dai Duanfang Inventor before: Hou Benliang |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160121 Address after: 201203 Shanghai Zhangjiang High Tech Park of Pudong New Area Cailun Road No. 1690 Building 5 Floor 4 Patentee after: Shanghai Cathay Biotechnology Research and Development Center Co., Ltd. Patentee after: Cathay Industrial Biotech Co., Ltd. Address before: 201203 Shanghai Zhangjiang High Tech Park of Pudong New Area Cailun Road No. 1690 Building 5 Floor 4 Patentee before: Shanghai Cathay Biotechnology Research and Development Center Co., Ltd. Patentee before: Cathay Industrial Biotech Co., Ltd. Patentee before: Shandong Cathay Biotechnological Material Co., Ltd. Patentee before: Kai Sai (Jinxiang) biological material Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160929 Address after: 201203 Shanghai Zhangjiang High Tech Park of Pudong New Area Cailun Road No. 1690 Building 5 Floor 4 Patentee after: Shanghai Cathay Biotechnology Research and Development Center Co., Ltd. Patentee after: Cathay Industrial Biotech Co., Ltd. Patentee after: Kai Sai (Jinxiang) biological material Co., Ltd. Address before: 201203 Shanghai Zhangjiang High Tech Park of Pudong New Area Cailun Road No. 1690 Building 5 Floor 4 Patentee before: Shanghai Cathay Biotechnology Research and Development Center Co., Ltd. Patentee before: Cathay Industrial Biotech Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190521 Address after: 201203 Shanghai Pudong New Area Zhangjiang hi tech park, Cai Lun Road, No. 5, 5 building, 4 floor. Co-patentee after: CIBT American Company Patentee after: Shanghai Cathay Biotechnology Research and Development Center Co., Ltd. Co-patentee after: Kai Sai (Jinxiang) biological material Co., Ltd. Address before: 201203 Shanghai Pudong New Area Zhangjiang hi tech park, Cai Lun Road, No. 5, 5 building, 4 floor. Co-patentee before: Cathay Industrial Biotech Co., Ltd. Patentee before: Shanghai Cathay Biotechnology Research and Development Center Co., Ltd. Co-patentee before: Kai Sai (Jinxiang) biological material Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201203 floor 4, building 5, No. 1690, Cailun Road, free trade zone, Pudong New Area, Shanghai Co-patentee after: CIBT American Company Patentee after: Shanghai Kaisai Biotechnology Co., Ltd. Co-patentee after: Kaisai (Jinxiang) Biomaterials Co., Ltd. Address before: 201203 Shanghai Zhangjiang High Tech Park of Pudong New Area Cailun Road No. 1690 Building 5 Floor 4 Co-patentee before: CIBT American Company Patentee before: Shanghai Cathay Biotechnology Research and Development Center Co., Ltd. Co-patentee before: Kaisai (Jinxiang) Biomaterials Co., Ltd. |