CN212713776U - Electrolytic cell for electrosynthesis of adiponitrile - Google Patents
Electrolytic cell for electrosynthesis of adiponitrile Download PDFInfo
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- CN212713776U CN212713776U CN202021329079.XU CN202021329079U CN212713776U CN 212713776 U CN212713776 U CN 212713776U CN 202021329079 U CN202021329079 U CN 202021329079U CN 212713776 U CN212713776 U CN 212713776U
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Abstract
The utility model discloses an electrolytic bath for electrosynthesis of adiponitrile, include the electrolytic bath casing with blind flange rigid coupling, the bottom of electrolytic bath casing is equipped with the inlet, and the top is equipped with the liquid outlet. Be equipped with positive pole subassembly, the negative pole subassembly that the cooperation was used in the electrolysis trough casing, positive pole subassembly includes the positive pole current conducting plate, one side of positive pole current conducting plate is equipped with and wears out the blind flange's positive pole leads electrical pillar, and the opposite side is equipped with a plurality of perpendicular to the anode plate that the inlet set up. The cathode assembly comprises a cathode conductive plate, one side of the cathode conductive plate is provided with a cathode conductive column penetrating out of the electrolytic cell shell, and the other side of the cathode conductive plate is provided with a plurality of cathode plates. The anode plates and the cathode plates are arranged in parallel and in a staggered mode, gaps are reserved between the anode plates and the cathode current-conducting plates, and gaps are reserved between the cathode plates and the anode current-conducting plates. The utility model discloses an electrolysis trough simple structure, convenient operation can improve adiponitrile's synthetic efficiency greatly.
Description
Technical Field
The utility model relates to an organic synthesis technical field especially relates to an electrolysis trough for electrosynthesis adiponitrile.
Background
Adiponitrile is an intermediate for manufacturing nylon 66, is widely applied to the production of rubber additives and herbicides, and is an important organic synthesis intermediate. The method for synthesizing adiponitrile mainly comprises an adipic acid method, a butadiene chlorination-cyanidation method, a butadiene direct hydrocyanation method, an acrylonitrile hydrodimerization method and the like. The acrylonitrile hydrodimerization method is usually carried out in an electrochemical synthesis mode, but the conventional device for electrosynthesis of adiponitrile by using a membrane method is complex, has high requirements on process parameter control and has low efficiency.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide an electrolytic cell for electrosynthesis of adiponitrile, which has simple structure and convenient operation and can greatly improve the synthesis efficiency of the adiponitrile.
In order to achieve the above purpose, the utility model discloses a technical scheme is: an electrolytic cell for electrosynthesis of adiponitrile comprises an electrolytic cell shell fixedly connected with a blind flange, wherein a liquid inlet is formed in the bottom of the electrolytic cell shell, and a liquid outlet is formed in the top of the electrolytic cell shell. Be equipped with positive pole subassembly, the negative pole subassembly that the cooperation was used in the electrolysis trough casing, positive pole subassembly includes the positive pole current conducting plate, one side of positive pole current conducting plate is equipped with and wears out the blind flange's positive pole leads electrical pillar, and the opposite side is equipped with a plurality of perpendicular to the anode plate that the inlet set up. The cathode assembly comprises a cathode conductive plate, one side of the cathode conductive plate is provided with a cathode conductive column penetrating out of the electrolytic cell shell, and the other side of the cathode conductive plate is provided with a plurality of cathode plates. The anode plates and the cathode plates are arranged in parallel and in a staggered mode, gaps are reserved between the anode plates and the cathode current-conducting plates, and gaps are reserved between the cathode plates and the anode current-conducting plates.
The beneficial effects of the utility model reside in that: the conduction of current is realized through the arrangement of the anode conductive column and the cathode conductive column; the anode plates and the cathode plates are arranged in a staggered manner, so that an electrolysis area can be formed between every two adjacent anode plates and cathode plates, when electrolyte enters the shell of the electrolytic cell through the liquid inlet, the electrolyte can perform electrochemical reaction through the electrolysis areas from bottom to top, and finally flows out of the shell of the electrolytic cell from the liquid outlet; the arrangement of the plurality of electrolysis areas enables the electrolyte to fully generate electrochemical reaction, so that the electrosynthesis efficiency of the adiponitrile is improved; the electrolyte is forced to circulate through the arrangement of the liquid inlet and the liquid outlet which are vertical to the electrolysis area, so that the reaction efficiency is improved; the electrolytic cell has simple structure and convenient operation, and greatly improves the synthesis efficiency of adiponitrile.
Furthermore, the anode plate is provided with a plurality of first screw holes, and the cathode plate is provided with a plurality of second screw holes which are in one-to-one correspondence with the first screw holes; plastic screws are arranged in the first screw holes on the anode plates and the second screw holes corresponding to the anode plates in a penetrating mode. The stable connection of a plurality of anode plates and cathode plates is realized through the arrangement of the plastic screw rods.
Furthermore, an insulating gasket is sleeved on the plastic screw rod between the adjacent anode plate and the cathode plate. The arrangement of the insulating gasket can avoid the conductive corrosion of the adjacent two anode plates and the cathode plate at the joint to influence the circulation of electrolyte.
Further, an insulating ring is further sleeved on the anode conductive column, one end of the insulating ring abuts against the blind flange, and the other end of the insulating ring abuts against the anode conductive plate. The insulation of the blind flange, the electrolytic cell shell and the anode conductive column is ensured through the arrangement of the insulating ring.
Further, the blind flange and the electrolytic cell shell are in sealing connection through PTFE, and a through hole for penetrating through the anode conductive column is formed in the axis of the blind flange. The aging resistance is improved through PTEE sealing connection, and the sealing material is stable and durable; the anode assembly and the cathode assembly inside are convenient to disassemble, assemble and maintain through the arrangement of the through holes.
Furthermore, the end parts of the liquid inlet and the liquid outlet are respectively provided with an integrally formed connecting flange.
Furthermore, the anode plate is made of a titanium material, and the surface of the anode plate is coated with an oxidation-resistant high oxygen evolution coating, so that the oxidation-resistant corrosion resistance of the anode plate is improved.
Further, the cathode plate is made of titanium or stainless steel.
Further, the electrolytic cell shell is a cylindrical shell made of stainless steel.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an anode assembly and a cathode assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the fixing of the anode plate and the cathode plate according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of an insulation ring according to an embodiment of the present invention.
In the figure:
1-a blind flange; 11-perforating; 2-an electrolyzer housing; 21-liquid inlet; 22-a liquid outlet; 31-an anode conductive plate; 32-anode conductive post; 33-an anode plate; 331-first screw hole; 41-cathode conductive plate; 42-cathode conductive post; 43-a cathode plate; 5-plastic screw; 6-an insulating spacer; 7-an insulating ring; 8-connecting the flange.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Examples
Referring to the attached drawings 1-2, the electrolytic cell for electrosynthesis of adiponitrile of the utility model comprises an electrolytic cell shell 2 fixedly connected with a blind flange 1, wherein the bottom of the electrolytic cell shell 2 is provided with a liquid inlet 21, and the top is provided with a liquid outlet 22. An anode assembly and a cathode assembly which are matched with each other are arranged in the electrolytic cell shell 2. The anode assembly comprises an anode conducting plate 31, one side of the anode conducting plate 31 is provided with an anode conducting column 32 penetrating through the blind flange 1, and the other side of the anode conducting plate 31 is provided with a plurality of anode plates 33 perpendicular to the liquid inlet 21; the cathode assembly comprises a cathode conductive plate 41, one side of the cathode conductive plate 41 is provided with a cathode conductive column 42 penetrating out of the electrolytic cell shell 2, and the other side is provided with a plurality of cathode plates 43. The anode plates 33 and the cathode plates 43 are arranged in parallel and in a staggered manner, gaps are reserved between the anode plates 33 and the cathode conductive plates 41, and gaps are reserved between the cathode plates 43 and the anode conductive plates 31.
The conduction of current is realized through the arrangement of the anode conductive column 32 and the cathode conductive column 42; the anode plates 33 and the cathode plates 43 are arranged in a staggered manner, so that an electrolysis area can be formed between every two adjacent anode plates 33 and cathode plates 43, when electrolyte enters the electrolytic tank shell 2 through the liquid inlet, the electrolyte can perform electrochemical reaction through the plurality of electrolysis areas from bottom to top, and finally flows out of the electrolytic tank shell 2 from the liquid outlet 22; the arrangement of the plurality of electrolysis areas enables the electrolyte to fully generate electrochemical reaction, so that the electrosynthesis efficiency of the adiponitrile is improved; the electrolyte is forced to circulate through the arrangement of the liquid inlet 21 and the liquid outlet 22 which are vertical to the electrolysis area, so that the reaction efficiency is improved; the electrolytic cell has simple structure and convenient operation, and greatly improves the synthesis efficiency of adiponitrile.
In this embodiment, referring to fig. 2-3, the anode plate 33 is provided with a plurality of first screw holes 331, and the cathode plate 43 is provided with a plurality of second screw holes corresponding to the first screw holes 331 one to one. Plastic screws 5 are arranged in the first screw holes 331 on the anode plates 33 and the second screw holes corresponding to the cathode plates 43 in a penetrating manner. An insulating gasket 6 is sleeved on the plastic screw rod 5 positioned between the adjacent anode plate 33 and the adjacent cathode plate 43. The stable connection of a plurality of anode plates 33 and cathode plates 43 is realized through the arrangement of the plastic screw 5. The arrangement of the insulating gasket can avoid the conductive corrosion at the joint of the two adjacent anode plates 33 and the cathode plates 43 to influence the circulation of the electrolyte.
In this embodiment, referring to fig. 2 and 4, the anode conductive column 32 is further sleeved with an insulating ring 7, and the insulating ring 7 is made of high-purity PTFE, and one end of the insulating ring abuts against the blind flange 1, and the other end of the insulating ring abuts against the anode conductive plate 31. The insulation of the blind flange 1, the electrolytic tank shell 2 and the anode conductive column 32 is ensured by the arrangement of the insulating ring 7, and the PTFE processing has both insulation and corrosion prevention functions.
The blind flange 1 is hermetically connected with the electrolytic cell shell 2 by adopting PTFE, and a through hole 11 for penetrating through the anode conductive column 32 is formed in the axis of the blind flange 1. The aging resistance is improved through PTEE sealing connection, and the sealing material is stable and durable; the anode assembly and the cathode assembly inside are convenient to disassemble, assemble and maintain through the arrangement of the through holes 11.
Referring to fig. 1, the ends of the liquid inlet 21 and the liquid outlet 22 are provided with connecting flanges 8 integrally formed therewith. The installation of the cell is facilitated by the provision of the attachment flange 8.
The anode plate 33 is made of titanium material, the surface of which is coated with an oxidation-resistant high oxygen-evolution coating, and the cathode plate 43 is made of titanium or stainless steel material. The oxygen-resistant and corrosion-resistant performance of the anode plate 33 is effectively improved through the high oxygen evolution coating.
The electrolytic tank shell 2 is a cylindrical shell made of stainless steel, and the heat-resisting and pressure-resisting performance of the electrolytic tank shell 2 is improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (9)
1. An electrolytic cell for electrosynthesis of adiponitrile comprises an electrolytic cell shell fixedly connected with a blind flange, wherein the bottom of the electrolytic cell shell is provided with a liquid inlet, and the top of the electrolytic cell shell is provided with a liquid outlet; the method is characterized in that: an anode assembly and a cathode assembly which are matched with each other are arranged in the electrolytic cell shell, the anode assembly comprises an anode conductive plate, one side of the anode conductive plate is provided with an anode conductive column which penetrates out of the blind flange, and the other side of the anode conductive plate is provided with a plurality of anode plates which are perpendicular to the liquid inlet; the cathode assembly comprises a cathode conductive plate, one side of the cathode conductive plate is provided with a cathode conductive column penetrating out of the electrolytic cell shell, and the other side of the cathode conductive plate is provided with a plurality of cathode plates; the anode plates and the cathode plates are arranged in parallel and in a staggered mode, gaps are reserved between the anode plates and the cathode current-conducting plates, and gaps are reserved between the cathode plates and the anode current-conducting plates.
2. An electrolytic cell for the electrosynthesis of adiponitrile as defined in claim 1 wherein: the anode plate is provided with a plurality of first screw holes, and the cathode plate is provided with a plurality of second screw holes which are in one-to-one correspondence with the first screw holes; plastic screws are arranged in the first screw holes on the anode plates and the second screw holes corresponding to the anode plates in a penetrating mode.
3. An electrolytic cell for the electrosynthesis of adiponitrile as defined in claim 2 wherein: and an insulating gasket is sleeved on the plastic screw rod between the adjacent anode plate and the cathode plate.
4. An electrolytic cell for the electrosynthesis of adiponitrile as defined in any one of claims 1-3 wherein: an insulating ring is further sleeved on the anode conductive column, one end of the insulating ring abuts against the blind flange, and the other end of the insulating ring abuts against the anode conductive plate.
5. An electrolytic cell for the electrosynthesis of adiponitrile as defined in claim 4 wherein: the blind flange is connected with the electrolytic cell shell in a PTFE (polytetrafluoroethylene) sealing mode, and a through hole used for penetrating the anode conductive column is formed in the axis of the blind flange.
6. An electrolytic cell for the electrosynthesis of adiponitrile as defined in claim 4 wherein: the end parts of the liquid inlet and the liquid outlet are respectively provided with a connecting flange which is integrally formed.
7. An electrolytic cell for the electrosynthesis of adiponitrile as defined in claim 1 wherein: the anode plate is made of titanium, and the surface of the anode plate is coated with an oxidation-resistant high oxygen evolution coating.
8. An electrolytic cell for the electrosynthesis of adiponitrile as defined in claim 1 wherein: the cathode plate is made of titanium or stainless steel.
9. An electrolytic cell for the electrosynthesis of adiponitrile as defined in claim 1 wherein: the electrolytic cell shell is a cylindrical shell made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021329079.XU CN212713776U (en) | 2020-07-08 | 2020-07-08 | Electrolytic cell for electrosynthesis of adiponitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021329079.XU CN212713776U (en) | 2020-07-08 | 2020-07-08 | Electrolytic cell for electrosynthesis of adiponitrile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212713776U true CN212713776U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021329079.XU Active CN212713776U (en) | 2020-07-08 | 2020-07-08 | Electrolytic cell for electrosynthesis of adiponitrile |
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| Country | Link |
|---|---|
| CN (1) | CN212713776U (en) |
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- 2020-07-08 CN CN202021329079.XU patent/CN212713776U/en active Active
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