CN217119879U - Electrodialysis desalination system of purification glufosinate-ammonium - Google Patents
Electrodialysis desalination system of purification glufosinate-ammonium Download PDFInfo
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- CN217119879U CN217119879U CN202220757144.1U CN202220757144U CN217119879U CN 217119879 U CN217119879 U CN 217119879U CN 202220757144 U CN202220757144 U CN 202220757144U CN 217119879 U CN217119879 U CN 217119879U
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- glufosinate
- ammonium
- electrodialysis
- tank
- raw material
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- 238000000909 electrodialysis Methods 0.000 title claims abstract description 58
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 19
- IAJOBQBIJHVGMQ-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid Chemical compound CP(O)(=O)CCC(N)C(O)=O IAJOBQBIJHVGMQ-UHFFFAOYSA-N 0.000 title claims abstract 9
- 238000000746 purification Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000013505 freshwater Substances 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 28
- 239000012528 membrane Substances 0.000 claims description 10
- ZBMRKNMTMPPMMK-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid;azane Chemical compound [NH4+].CP(O)(=O)CCC(N)C([O-])=O ZBMRKNMTMPPMMK-UHFFFAOYSA-N 0.000 description 73
- 239000012266 salt solution Substances 0.000 description 37
- 239000007788 liquid Substances 0.000 description 24
- 239000000243 solution Substances 0.000 description 16
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 238000001035 drying Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 235000019270 ammonium chloride Nutrition 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- -1 ammonium ions Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000003011 anion exchange membrane Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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Abstract
The utility model discloses an electrodialysis desalination system for purifying glufosinate-ammonium, which comprises a raw material tank, a filtering device, a fresh water tank, a concentrated solution tank, an electrodialysis device and an electrode water tank; the raw material tank is connected with the filtering device through a raw material pump, the outlet of the filtering device is connected with a fresh water tank through a pipeline, and the fresh water tank is connected with a raw material feeding hole of the electrodialysis device through a fresh water pump; a fresh water outlet of the electrodialysis device is connected with a feed back inlet of the fresh water tank through a pipeline; the outlet of the concentrated solution tank is connected with a concentrated water feed inlet of the electrodialysis device through a concentrated water pump; a concentrated water outlet of the electrodialysis device is connected with a feed back inlet of the concentrated solution tank through a pipeline; the polar water tank is connected with a polar water inlet of the electrodialysis device through a polar water pump, and an electrodialysis polar water outlet is connected with a feed back port of the polar water tank through a pipeline. The utility model discloses can guarantee the yield of glufosinate-ammonium when improving glufosinate-ammonium purity.
Description
Technical Field
The utility model relates to a glufosinate-ammonium purification processing technology field, concretely relates to electrodialysis desalination system of purification glufosinate-ammonium.
Background
In the production process of traditional glufosinate-ammonium, inorganic acid is adopted to carry out salinization on glufosinate-ammonium to generate glufosinate-ammonium and inorganic salt, then ammonia gas or ammonia water is introduced into the mixed solution to generate mixed solution of glufosinate-ammonium and inorganic salt, and then the glufosinate-ammonium is purified by a crystallization method. But because the purity of the glufosinate-ammonium obtained by crystallization is not high, the loss rate of the glufosinate-ammonium is large, and the treatment efficiency is low, a method and a device for efficiently purifying the glufosinate-ammonium are urgently needed, so that the yield of the glufosinate-ammonium is ensured while the purity of the glufosinate-ammonium is improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrodialysis desalination system of purification glufosinate-ammonium. The utility model discloses can guarantee the yield of glufosinate-ammonium when improving glufosinate-ammonium purity.
In order to solve the technical problem, the utility model provides a technical scheme as follows: an electrodialysis desalination system for purifying glufosinate-ammonium comprises a raw material tank, a filtering device, a fresh water tank, a concentrated solution tank, an electrodialysis device and an electrode water tank; the raw material tank is connected with the filtering device through a raw material pump, the outlet of the filtering device is connected with a fresh water tank through a pipeline, and the fresh water tank is connected with a raw material feeding hole of the electrodialysis device through a fresh water pump; a fresh water outlet of the electrodialysis device is connected with a feed back inlet of the fresh water tank through a pipeline; the outlet of the concentrated solution tank is connected with a concentrated water feed inlet of the electrodialysis device through a concentrated water pump; a concentrated water outlet of the electrodialysis device is connected with a feed back inlet of the concentrated solution tank through a pipeline; the polar water tank is connected with a polar water inlet of the electrodialysis device through a polar water pump, and an electrodialysis polar water outlet is connected with a feed back port of the polar water tank through a pipeline.
In the electrodialysis desalination system for purifying glufosinate-ammonium, the filtering device is provided with the raw material loop, and the raw material loop is connected with the raw material tank.
In the aforementioned electrodialysis desalination system for purifying glufosinate-ammonium, the fresh water tank is provided in plurality.
In the electrodialysis desalination system for purifying glufosinate-ammonium, the concentrated solution tank is provided with a plurality of tanks.
In the aforementioned electrodialysis desalination system for purifying glufosinate-ammonium, the filtering device is a membrane filtering device.
Compared with the prior art, the utility model discloses filter the back with the raw materials through filter equipment, obtain the mixed salt solution of glufosinate-ammonium clarified liquid, let in the electrodialysis device with the clarified liquid of the mixed salt solution of glufosinate-ammonium, desalt under the effect of electric field, obtain the mixed salt solution feed liquid of glufosinate-ammonium after the desalination, the mixed salt solution of glufosinate-ammonium after will desalinating can obtain refined glufosinate-ammonium solid through concentrated crystallization separation, drying. Further, the utility model discloses a membrane filtration device carries out the preliminary treatment to glufosinate-ammonium salt solution, can improve the stability of electrodialysis system operation and the promotion of operating efficiency, reduces the electrodialysis system and takes place dirty stifled risk. The utility model discloses can guarantee the yield of glufosinate-ammonium when improving glufosinate-ammonium purity.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals
1. A raw material tank; 2. a filtration device; 3. a fresh water tank; 4. an electrodialysis unit; 5. a polar water tank; 6. a feedstock pump; 7. a fresh water pump; 8. a concentrate pump; 9. an ultra-water pump; 10. a concentrated solution tank.
Detailed Description
The present invention will be further described with reference to the following examples and drawings, but the invention is not limited thereto.
Example (b): an electrodialysis desalination system for purifying glufosinate-ammonium, as shown in fig. 1, comprises a raw material tank 1 for storing glufosinate-ammonium to be desalinated, a filtering device 2 for filtering glufosinate-ammonium, a fresh water tank 3 for receiving the filtered glufosinate-ammonium feed liquid, a concentrated solution tank 10 for receiving the salt removed from the glufosinate-ammonium salt solution, an electrodialysis device 4 for desalinating the filtered glufosinate-ammonium mixed salt solution, and a polar water tank 5 for storing polar liquid; the raw material tank 1 is provided with a glufosinate-ammonium mixed salt solution feeding port, a mixed salt solution discharging port and a filtered concentrated solution feed back port; the filtering device 2 is a membrane filtering device 2 and is provided with a glufosinate-ammonium mixed salt solution inlet, a filtrate outlet and a residue-containing feed liquid outlet; the fresh water tanks are provided with 2, and each fresh water tank is provided with a glufosinate-ammonium mixed salt solution inlet, a glufosinate-ammonium mixed salt solution filtrate outlet and a return port for desalting the glufosinate-ammonium mixed salt solution; the concentrated liquid tanks are provided with 2 concentrated liquid tanks, and each concentrated liquid tank is provided with a pure water receiving liquid inlet, a receiving liquid outlet and a receiving liquid feed back port; the electrodialysis device 4 is provided with a glufosinate-ammonium mixed salt solution filtrate inlet, a glufosinate-ammonium mixed salt solution desalination liquid outlet, a receiving liquid inlet, a receiving liquid outlet, an extreme water inlet and an extreme water outlet. The mixed salt solution discharge port of the raw material tank 1 is connected with the filtering device 2 through a raw material pump 6 and a pipeline, the filtrate outlet of the filtering device 2 is connected with a fresh water tank through a pipeline, the filtering device is provided with a raw material loop, and the raw material loop is connected with the concentrated solution feed back port of the raw material tank 1; the fresh water tank 3 is connected with a raw material feeding port of the electrodialysis device through a fresh water pump 7; a fresh water outlet of the electrodialysis device 4 is connected with a feed back inlet of the fresh water tank 3 through a pipeline; the outlet of the concentrated solution tank is connected with a concentrated water feed inlet of the electrodialysis device 4 through a concentrated water pump 8; a concentrated water outlet of the electrodialysis device 4 is connected with a feed back inlet of a concentrated solution tank through a pipeline; utmost point water pitcher 5 is connected through utmost point water pump 9 and electrodialysis device 4's utmost point water entry, and electrodialysis utmost point water delivery port is connected through the feed back mouth of pipeline with utmost point water pitcher 5, the utility model discloses an all set up the valve on each pipeline for open and close the pipeline. The process flow of the utility model is as follows: filtering the glufosinate-ammonium mixed salt solution through a membrane filtering device 2 to obtain a glufosinate-ammonium mixed salt solution clarified liquid, introducing the clarified liquid of the glufosinate-ammonium mixed salt solution into an electrodialysis device 4, and desalting under the action of an electric field to obtain a desalted glufosinate-ammonium mixed salt solution feed liquid; and concentrating, crystallizing, separating and drying the desalted mixed salt solution of the glufosinate-ammonium to obtain the refined glufosinate-ammonium solid.
The implementation method of the utility model comprises the following steps:
(1) introducing the glufosinate-ammonium mixed salt solution into a membrane filtering device 2 with the aperture of 1nm-3nm, wherein the operation pressure is within 0.2MPa-0.6MPa, and the operation temperature is 25-30 ℃, so as to obtain a glufosinate-ammonium mixed salt solution clarified liquid;
(2) introducing the glufosinate-ammonium mixed salt solution clarified liquid obtained in the step (1) into an electrodialysis device 4, wherein the electrodialysis operating voltage is 0.2-2.5V per pair of membranes, and the current density is 100- 2 The system temperature is 25-35 ℃. Electrodialytic fresh water is a purified glufosinate-ammonium solution, electrodialytic concentrated water is a dilute solution containing sodium chloride or (and) ammonium chloride;
(3) and (3) concentrating, crystallizing, separating and drying the desalted glufosinate-ammonium solution obtained in the step (2) to obtain refined glufosinate-ammonium solid.
Preferably, the method comprises the following steps:
(1) pre-treating with a glufosinate-ammonium mixed salt solution: introducing the glufosinate-ammonium mixed salt solution into a membrane filtering device 2 for filtering, and removing solid suspended matters and other impurities in the glufosinate-ammonium salt solution to obtain a glufosinate-ammonium mixed salt solution clarified liquid, wherein the pore diameter of a membrane is 2.5nm, the operation pressure is 0.5MPa, and the system working temperature is 25 ℃;
(2) desalting with a glufosinate-ammonium mixed salt solution: introducing the pretreated glufosinate-ammonium mixed salt solution obtained in the step (1) into an electrodialysis device 4, wherein the electrodialysis operation voltage is 1.2V per pair of membranes, and the current density is 260A/m 2 The operation temperature is 30 ℃; under the action of an electric field, chloride ions in the mixed salt solution of the glufosinate-ammonium permeate an anion exchange membrane to migrate to a concentrated water side, ammonium ions or (and) sodium ions permeate a cation exchange membrane to migrate to an adjacent concentrated water side, and because concentrated water compartments are communicated with each other, ammonium ions or (and) sodium ions and chloride ions migrate to the concentrated compartments to be recombined to form ammonium chloride or (and) sodium chloride, so that the content of the ammonium chloride or (and) sodium chloride in the mixed salt solution of the glufosinate-ammonium is gradually reduced, a purified glufosinate-ammonium solution is obtained, and a dilute solution containing the ammonium chloride or (and) sodium chloride is obtained on the concentrated water side through electrodialysis.
(3) And (3) drying: and concentrating, crystallizing, separating and drying the desalted glufosinate-ammonium solution to obtain refined glufosinate-ammonium solid.
To sum up, the utility model discloses filter the back with raw materials through filter equipment 2, obtain the mixed salt solution of glufosinate-ammonium clarified liquid, let in electrodialysis device 4 with the clarified liquid of the mixed salt solution of glufosinate-ammonium, desalt under the effect of electric field, obtain the mixed salt solution feed liquid of glufosinate-ammonium after the desalination, the mixed salt solution of glufosinate-ammonium after will desalinating can obtain refined glufosinate-ammonium solid through concentrated crystallization separation, drying. Further, the utility model discloses a membrane filtration device 2 carries out the preliminary treatment to glufosinate-ammonium salt solution, can improve the stability of electrodialysis system operation and the promotion of operating efficiency, reduces the electrodialysis system and takes place the risk of dirty stifled and performance decay. The utility model discloses can guarantee the yield of glufosinate-ammonium when improving glufosinate-ammonium purity.
Claims (5)
1. An electrodialysis desalination system of purification glufosinate-ammonium, its characterized in that: comprises a raw material tank (1), a filtering device (2), a fresh water tank (3), a concentrated solution tank (10), an electrodialysis device (4) and a polar water tank (5); the raw material tank (1) is connected with the filtering device (2) through a raw material pump (6), the outlet of the filtering device (2) is connected with a fresh water tank (3) through a pipeline, and the fresh water tank (3) is connected with a raw material feeding hole of the electrodialysis device through a fresh water pump (7); a fresh water outlet of the electrodialysis device (4) is connected with a feed back inlet of the fresh water tank (3) through a pipeline; the outlet of the concentrated solution tank (10) is connected with a concentrated water feed inlet of the electrodialysis device (4) through a concentrated water pump (8); a concentrated water outlet of the electrodialysis device (4) is connected with a feed back inlet of the concentrated solution tank through a pipeline; the polar water tank (5) is connected with a polar water inlet of the electrodialysis device (4) through a polar water pump (9), and an electrodialysis polar water outlet is connected with a feed back port of the polar water tank (5) through a pipeline.
2. Electrodialysis desalination system for purifying glufosinate-ammonium according to claim 1, characterized in that: the filtering device is provided with a raw material loop, and the raw material loop is connected with the raw material tank (1).
3. Electrodialysis desalination system for purifying glufosinate-ammonium according to claim 1, characterized in that: the fresh water tank (3) is provided with a plurality of fresh water tanks.
4. Electrodialysis desalination system for purifying glufosinate-ammonium according to claim 1, characterized in that: the concentrated solution tanks (10) are provided in plurality.
5. Electrodialysis desalination system for purifying glufosinate-ammonium according to claim 1, characterized in that: the filtering device (2) is a membrane filtering device (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220757144.1U CN217119879U (en) | 2022-04-01 | 2022-04-01 | Electrodialysis desalination system of purification glufosinate-ammonium |
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| CN202220757144.1U CN217119879U (en) | 2022-04-01 | 2022-04-01 | Electrodialysis desalination system of purification glufosinate-ammonium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253686A (en) * | 2022-08-23 | 2022-11-01 | 同舟纵横（厦门）流体技术有限公司 | Impurity removal and desalination system and method for betaine feed liquid |
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- 2022-04-01 CN CN202220757144.1U patent/CN217119879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253686A (en) * | 2022-08-23 | 2022-11-01 | 同舟纵横（厦门）流体技术有限公司 | Impurity removal and desalination system and method for betaine feed liquid |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An electrodialysis desalination system for purifying glyphosate ammonium phosphine Granted publication date: 20220805 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou Kerui Environmental Energy Technology Co.,Ltd. Registration number: Y2024980003983 |
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