CN1083871A - Frame type fixed bed electrode electrolyzer and industrial application thereof - Google Patents
Frame type fixed bed electrode electrolyzer and industrial application thereof Download PDFInfo
- Publication number
- CN1083871A CN1083871A CN 93112449 CN93112449A CN1083871A CN 1083871 A CN1083871 A CN 1083871A CN 93112449 CN93112449 CN 93112449 CN 93112449 A CN93112449 A CN 93112449A CN 1083871 A CN1083871 A CN 1083871A
- Authority
- CN
- China
- Prior art keywords
- electrolyzer
- working electrode
- fixed bed
- electrode
- anolyte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y02E60/12—
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a kind of frame type fixed bed electrode electrolyzer, it is mainly combined by two terminal rooms, a plurality of cathode compartment and a plurality of anolyte compartment.Wherein separate with ion-exchange membrane between anolyte compartment and the cathode compartment; Charge into wire cloth in the cathode compartment or in the anolyte compartment and form the fixed bed working electrode; The inoperative electrode is the metal electrode of dimensional stabilizing, and its structure is porous flat plate or web plate.The electrolyte flow direction and the sense of current are perpendicular.Electrolyzer of the present invention can be widely used in organic electrolytic synthesis, also is applicable to the recovery of precious metal, the processing of waste water, and be applicable to the chemical cell that uses solid electrolyte.
Description
The present invention relates to a kind of organic electrolysis synthetic fixed bed electrode electrolyzer that is applicable to.
As everyone knows, therefore ripe and be widely used for the plate electrode electrolyzer of inorganic electrolyte industry because the solubleness of reactant in medium is low, speed of reaction is little in organic electrolytic synthesis, and be not suitable for the organic electrolysis compound probability.Therefore, domestic and international many research workers are devoted to develop the electrolyzer that is applicable to the organism electrolytic synthesis, as US 4,963,241,4,473,449 and JP 8,144,155 patent disclosures a kind of fixed bed electrode electrolyzer, adopt the sense of current structure parallel, can be used for organic decomposition, wastewater treatment and galvanic deposit etc. with the electrolyte flow direction.Studies show that, for organic electrolytic synthesis, not only require electrolytic solution that enough residence time are arranged in bed, and require to have uniform electromotive force and distribution of current.Certainly will require the time that electrolytic solution flows through in bed to grow like this, and the distance that electric current flows through must be lacked.Therefore, above-mentioned prior art is because it adopts the electrolytic solution structure parallel with direction of current flow.So can not satisfy the requirement of electric current uniform distribution and enough residence time (assurance has higher reaction conversion ratio) simultaneously.DD 276,891 patent disclosures a kind of sense of current and the vertical structure of electrolyte flow direction.It adopts a cathode compartment and an anolyte compartment.Working electrode is the particulate state conducting objects, by some contact conduction between particle.Studies show that, adopt the particulate state conducting objects as working electrode.When electric current flows through, because liquid to the particulate wetting action, has weakened intergranular electroconductibility.Easily forming local small battery causes the working condition of electrode to worsen.
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of simple in structure, compact, easily adorn the frame type fixed bed electrode electrolyzer that readily removable, working electrode conduction situation is good, throughput is big, existing good current potentials distributes, has again higher per pass conversion, can be widely used in organic electrolytic synthesis, also be applicable to the chemical cell of recovery, wastewater treatment and the use solid electrolyte of precious metal.
Design of the present invention is such:
(1) said electrolyzer adopts the plate and frame structure.Its two ends respectively are provided with a terminal room, and the centre is provided with a plurality of cathode compartments and a plurality of anolyte compartment, can be arranged in order by the order of a cathode compartment and an anolyte compartment.Constitute acyclic type or multipole type structure.Also can be arranged in order, constitute the acyclic type structure by the order of two cathode compartments and an anolyte compartment.Separate with ion-exchange membrane between cathode compartment and the anolyte compartment.Be equipped with insulation spacer between members such as each cathode compartment, anolyte compartment and electrode, can prevent to leak and satisfy insulating requirements, the quantity of cathode compartment and anolyte compartment is decided by industrial scale.
(2) said electrolyzer adopts the sense of current and the vertical structure of liquid flow path direction.
(3) adopt the overlapped metal silk screen bed that fixes to make electrode mutually.It not only can satisfy the requirement on the production technique, and has overcome the shortcoming that easily produces local microbattery in the prior art.
(4) metal electrode that adopts dimensional stabilizing is as the inoperative electrode, and its structure is porous flat plate or web plate.
(5) by fluidic outer circulation forced-flow, can reinforcing mass transfer, thus improve speed of reaction and purpose product selectivity.
(6) after whole device was arranged assembling by mentioned above principle, the mode of available routine compressed on press and forms.
The present invention also is achieved in that
Said frame type fixed bed electrode electrolyzer is combined by two terminal rooms, a plurality of cathode compartment and a plurality of anolyte compartment.All separate between anolyte compartment and the cathode compartment with ion-exchange membrane.Be equipped with the porous protecting sheet in the both sides of ion-exchange membrane.The fixed bed working electrode is made of the eclipsed wire cloth.Its voidage is 0.3～0.9; The inoperative electrode is the metal electrode of dimensional stabilizing, and its structure is porous flat plate or web plate.
Wherein said terminal room can be the anolyte compartment, can be cathode compartment also, decides on working condition requirement.It is mainly by end plaste, and male or female unit framework and battery lead plate are formed.Because terminal room is non-working electrode unit.So above-mentioned male or female unit framework is inoperative electrode unit framework.
The working electrode unit can be a cathode compartment, can be the anolyte compartment also, decides on working condition requirement.It mainly is made up of working electrode unit framework, fixed bed working electrode and conducting plates.
The inoperative electrode unit can be that the anolyte compartment can be a cathode compartment also, decides on working condition requirement.It mainly is made up of two battery lead plates and an inoperative electrode unit framework.
Between all members such as end plaste, inoperative electrode unit framework, battery lead plate, working electrode unit framework, conducting plates and porous protecting sheet, be equipped with insulation spacer, can prevent to leak and satisfy insulating requirements.Its material can be chloroprene rubber, tetrafluoroethylene or poly-trifluoro-ethylene etc.
Inoperative electrode unit framework and working electrode unit framework structure similar.Be equipped with electrolytic solution intake vent and uniform hole in their bottom, then be provided with electrolytic solution (anolyte or catholyte) outlet pipe at the top, vertical to guarantee the electrolyte flow direction with the sense of current, the thickness of working electrode unit framework is an important parameters, and it is all influential to the factors such as throughput, bed utilization ratio, current efficiency and capacity usage ratio of electrolyzer.Can in 1～10cm, choose.Suitable scope is 2～6cm.The thickness of inoperative electrode unit framework can be the same with the working electrode unit framework, can also be different, and suitable thickness is 1～5cm.
Be arranged at the porous protecting sheet of ion-exchange membrane both sides, except playing the protection ion-exchange membrane, also can play a part to regulate interpole gap, so its thickness can be selected in 1～5 millimeter scope.
All members such as the working electrode unit framework of electrolyzer, inoperative electrode unit framework, end plaste, porous protection all can adopt resistant metal.Material such as engineering plastics or rubber is made.
Whole electrolyzer is according to engine request, is arranged in order to assemble the back and compress on press and form.Illustrate content of the present invention (for ease of explanation, getting negative electrode here is working electrode, and anode is the inoperative electrode) below in conjunction with accompanying drawing:
Fig. 1 is the sectional front view of a frame type fixed bed electrode electrolyzer that assembles.
Wherein: the 1-end plaste; 2-anode unit framework;
The 3-positive plate; 4-cathode electrode unit framework;
5-fixed bed working electrode; 6-negative electrode conducting plates;
The 7-ion-exchange membrane; 8-porous protecting sheet;
The 9-insulation spacer; 13-catholyte outlet pipe;
15-anolyte outlet pipe; 17-electrolytic solution intake vent.
Electrolyzer shown in Figure 1 is the electrolyzer of acyclic type structure, is provided with
6 cathode compartment: N
1, N
2, N
3, N
4, N
5, N
6,
Two anolyte compartment: P
1, P
2,
Two terminal anode chamber: T
1, T
2,
Two adjacent cathode compartments are (as N
1, N
2) a shared negative electrode conducting plates 6.
Obviously, according to the difference of processing power, anolyte compartment and cathode compartment number can be less than or more than illustrated number.Therefore electrolyzer shown in Figure 1 does not limit the scope of the invention.
Terminal anode chamber T
1Or T
2Mainly by end plaste 1, anode unit framework 2 and positive plate 3 are formed.The bottom of anode unit framework is provided with passage 17, be circumscribed with on anolyte inlet pipe 14(Fig. 1 and do not draw), anolyte is by inlet pipe 14 admission passages 17 and by not drawing on uniform hole 16(Fig. 1) to enter terminal anode indoor, and the top of anode unit framework is provided with anolyte outlet pipe 15.Positive plate 3 is the metal anode of dimensional stabilizing, and its structure is porous flat plate or web plate.
Cathode compartment N
1, N
2, N
3, N
4, N
5, N
6Mainly form by cathode electrode unit framework 4, fixed bed working electrode 5 and negative electrode conducting plates 6.The fixed bed working electrode be a metalloid silk screen it can be plate, also can be ripple type.Be provided with passage 17 in the bottom of cathode electrode unit framework, be circumscribed with on catholyte inlet pipe 12(Fig. 1 and do not draw), catholyte is by inlet pipe 12 admission passages 17 and by not drawing on uniform hole 16(Fig. 1) enter in the cathode compartment, the top of cathode electrode unit framework is provided with catholyte outlet pipe 13.
The P of anolyte compartment
1, P
2Mainly be made up of two positive plates 3 and an anode unit framework 2, all the other structures and terminal anode chamber are together.
For preventing to leak; between all members such as end plaste 1, anode unit framework 2, positive plate 3, porous protecting sheet 8, cathode electrode unit framework 4, negative electrode conducting plates 6, be equipped with among the insulation spacer Fig. 1 between insulation spacer 9(partial component and do not draw), its material can be chloroprene rubber or tetrafluoroethylene, poly-trifluoro-ethylene etc.
Between anolyte compartment and cathode compartment, separate, in order to protect ion-exchange membrane 7 with ion-exchange membrane 7.Respectively be provided with a porous protecting sheet 8 in its both sides, this plate can also play a part to regulate interpole gap, so its thickness can be selected in 1-5 millimeter scope except playing protection ion-exchange membrane 7.
Said electrolyzer assembles according to mentioned above principle (shown in Figure 1 puts in order), adopts conventional mode to compress on press.
Fig. 2 is the schematic top plan view of electrolyzer shown in Figure 1.
Wherein: 10-anode connection plate, 11-cathode connection plate,
12-catholyte inlet pipe, 13-catholyte outlet pipe,
14-anolyte inlet pipe, 15-anolyte outlet pipe.
Fig. 3 is the cathode electrode unit frame construction drawing
Wherein: 4-cathode electrode unit framework, 12-catholyte inlet pipe,
13-catholyte outlet pipe, the uniform hole of 16-.
Catholyte is by not drawing on the catholyte inlet pipe admission passage 17(figure) enter cathode compartment through the uniform hole 16 of electrolytic solution.How much deciding on the scantlings of the structure size of processing power and cathode electrode unit framework of uniform hole 16 is at least one usually, is illustrated as the cathode electrode unit framework that has 4 uniform holes.
Its structure of the framework of anode unit and cathode electrode unit framework are similar.The material of the two can be resistant metal, engineering plastics or rubber etc.The cathode electrode unit frame thickness is an important parameter, and it is all influential to factors such as electrolyzer throughput, bed utilization ratio, current efficiency and capacity usage ratios, can choose in 1-10 centimetre, and suitable scope is 2-6 centimetre.The thickness of anode unit framework can be the same with the cathode electrode unit framework.Can also be different, suitable thickness is 1-5 centimetre.
Fig. 4 is the structural representation of fixed bed working electrode with wire cloth.
Wherein: (a) be window screening shape wire cloth, as copper wire gauze, Stainless Steel Cloth etc.;
(b) be special grid type wire mesh structure, this grid type silk screen can have different overlap modes, can grid be gathered into folds from level to level by the form of Fig. 4 (b); Can also be the form of the first layer by Fig. 4 (b), the second layer shows grid rotation unspecified angle (as 90 degree) with Fig. 4 (b), the 3rd layer of same the first layer, and the 4th layer of same second layer, by that analogy.From mass transfer effect, the latter is better than the former.
In addition, (a) or (b) all can be processed into wave structure, overlaping then is packed in the cathode electrode unit framework.
The voidage of fixed bed working electrode is 0.3-0.9, and suitable voidage is 0.4～0.8, and as for the geometric area that the length and the width of fixed bed working electrode depends on electrode, industrial scale is with the factors such as requirement with concrete process object.
Further illustrate content of the present invention below in conjunction with application example, but therefore do not limit range of application of the present invention.
Applicating example:
Electrolyzer of the present invention is used for the oil of mirbane electrolytic reduction and prepares p-aminophenol, and Fig. 5 is the process flow diagram of this process.
Wherein:
18-is a cathode compartment;
19-is the anolyte compartment;
20a, 20b, 20c, 20d-are thief hole;
21a, 21b-are gas-liquid separator;
22a-is the anolyte storage tank, and anolyte can be imported in the anolyte compartment by pump after metering;
22b-is the catholyte storage tank, and catholyte can be imported in the cathode compartment by pump after metering;
23a, 23b-are thermometer;
24a, 24b-are heating unit, and they are preheated to suitable temperature of reaction with anolyte, catholyte respectively;
25a-anolyte Send out pump;
25b-negative electrode Send out pump;
26a, 26b-are under meter;
27a, 27b, 27c, 27d-are variable valve.
In this example, all members such as the anode unit framework of electrolyzer, cathode electrode unit framework, end plaste, porous plate all adopt engineering plastics, make as polypropylene.Anode adopts the ti-supported lead dioxide electric pole in porous band tin antimony middle layer, because it is anti-corrosion fully, has guaranteed the stable of anode dimension.The fixed bed working electrode adopts the wire cloth (copper wire gauze) of structure shown in Fig. 4 (a), and the voidage of its bed is 0.8.The negative electrode conducting plates adopts copper coin.Ion-exchange membrane adopts the commercially available F-46 cationic exchange membrane after improving.Insulation spacer adopts tetrafluoroethylene.
During starting: anolyte and catholyte are squeezed into electrolyzer by transferpump 25a, 25b respectively and are formed circulation, provide certain electric current to avoid the dissolving of cathode copper simultaneously.When the electrolytic solution in the storage tank (anolyte and catholyte) heating reaches temperature of reaction, feed rated current and carry out reduction reaction (the electrode part is not drawn among the figure).
This process appropriate processing condition is:
Anolyte: H 15-25%(wt)
2SO
4The aqueous solution.
Catholyte: for containing the 15-25%(wt of saturated oil of mirbane) H
2SO
4The aqueous solution,
Temperature of reaction: 80 ℃-90 ℃.
The linear velocity of electrolyzer electrolyte inside: the 2-4 cel,
How much current densities: 9-15 peace/square decimeter,
Bath voltage: 2.3-2.7 volt,
React and get 150 milliliters of electrolytic solution after 6-10 hour, can obtain 9 gram p-aminophenol through separating, purity is 99%, 189 ℃ of fusing points.
The yield of this process is 70%, and current efficiency is 81%.
In sum as seen,, all can conceive, realize other organic electrolytic synthesis, the recovery of precious metal, wastewater treatment and the chemical cell that uses solid electrolyte according to the present invention for present technique field general engineering technology personnel.
Claims (4)
1, a kind of frame type fixed bed electrode electrolyzer is characterized in that:
(1) said electrolyzer is by two terminal rooms, a plurality of cathode compartments and a plurality of anolyte compartment combine, all separate between anolyte compartment and the cathode compartment with ion-exchange membrane, be provided with the porous protecting sheet in the both sides of ion-exchange membrane, the fixed bed working electrode is made of the eclipsed wire cloth, its voidage is 0.3-0.9, and the inoperative electrode is the metal electrode of dimensional stabilizing, and structure is porous flat plate or web plate;
(2) said terminal room mainly is made up of end plaste, male or female unit framework and battery lead plate;
(3) said working electrode unit mainly is made up of working electrode unit framework, fixed bed working electrode and conducting plates, should adopt the acyclic type structure usually, and be about to two working electrode unit and fit together, and a shared conducting plates 6;
(4) said inoperative electrode unit mainly is made up of two battery lead plates and an inoperative electrode framework;
(5) between end plaste, inoperative electrode unit framework, battery lead plate, working electrode unit framework, conducting plates and all members of porous protecting sheet, be equipped with insulation spacer;
(6) be equipped with passage and uniform hole in the bottom of inoperative electrode unit framework and working electrode unit framework, then be respectively equipped with the electrolyte outlet pipe at the top, perpendicular with the flow direction and the sense of current that guarantee electrolytic solution (comprising anolyte and catholyte);
On press, compress after (7) whole electrolyzer assembles successively.
2, electrolyzer as claimed in claim 1 is characterized in that said fixed bed working electrode forms by the wire cloth of window screening shape, fenestral fabric is overlapping, or overlapping the forming of ripple packing that is pressed into by the wire cloth of above-mentioned shape.
3, electrolyzer as claimed in claim 1 or 2, the voidage that it is characterized in that said fixed bed working electrode is 0.4-0.8.
When 4, being used for electrolytic reduction and preparing p-aminophenol, it is characterized in that the processing condition of electrolytic process are as the described electrolyzer of one of claim 1-3:
(1) anolyte is 15-25%(wt) H
2SO
4The aqueous solution, catholyte are the 15-25%(wt that contains oil of mirbane) H
2SO
4The aqueous solution;
(2) temperature of reaction is 80 ℃-90 ℃;
(3) linear velocity of electrolytic solution (comprising anolyte and catholyte) is the 2-4 cel;
(4) how much current densities are 9-15 peace/square decimeter;
(5) bath voltage is the 2.3-2.7 volt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93112449A CN1039545C (en) | 1993-05-31 | 1993-05-31 | Frame type fixed bed electrode electrolyzer and its industrial application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93112449A CN1039545C (en) | 1993-05-31 | 1993-05-31 | Frame type fixed bed electrode electrolyzer and its industrial application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1083871A true CN1083871A (en) | 1994-03-16 |
| CN1039545C CN1039545C (en) | 1998-08-19 |
Family
ID=4990062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93112449A Expired - Fee Related CN1039545C (en) | 1993-05-31 | 1993-05-31 | Frame type fixed bed electrode electrolyzer and its industrial application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1039545C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891285A (en) * | 2010-07-09 | 2010-11-24 | 北京大学 | Device and method for treating phenol wastewater |
| CN102276017A (en) * | 2010-11-16 | 2011-12-14 | 中国环境科学研究院 | Equipment and method for converting acrylic acid (acrylate) into propionic acid (propionate) |
| CN102575365A (en) * | 2009-10-13 | 2012-07-11 | 石尚烨 | Electrolyzer having increased contact specific surface area for the recovery of valuable metals |
| CN103755099A (en) * | 2014-01-20 | 2014-04-30 | 厦门绿动力环境治理工程有限公司 | Multidimensional poleless electro-oxidation wastewater treatment method |
| CN104947138A (en) * | 2015-05-19 | 2015-09-30 | 浙江工业大学 | Method for electrolytic synthesis of butanedioic acid and fixed bed electrochemical reaction device |
| CN105236629A (en) * | 2015-10-22 | 2016-01-13 | 山东龙安泰环保科技有限公司 | Double-effect electrolysis waste water treatment device |
| CN105951121A (en) * | 2016-05-27 | 2016-09-21 | 安庆师范大学 | Method for preparing phenol by ionic liquid assisted electric catalytic oxidation |
| CN108328704A (en) * | 2018-04-20 | 2018-07-27 | 淄博格瑞水处理工程有限公司 | Plate and frame electrolysis unit |
| CN109071279A (en) * | 2015-12-22 | 2018-12-21 | 奥图泰(芬兰)公司 | Electrochemical reactor, water treatment facilities and system and water treatment facilities control method |
| CN109626523A (en) * | 2019-02-01 | 2019-04-16 | 华中师范大学 | Novel photoelectric catalytic reactor based on amberplex and its application in the treatment of waste water |
| WO2020207480A1 (en) * | 2019-04-10 | 2020-10-15 | 中国恩菲工程技术有限公司 | Copper electrodeposition device |
| CN113684492A (en) * | 2021-07-26 | 2021-11-23 | 石家庄锐氢科技有限公司 | Plate-frame type superposable water electrolysis hydrogen production PEM electrolysis device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539080A (en) * | 1983-03-25 | 1985-09-03 | Ppg Industries, Inc. | Electro organic method and apparatus for carrying out same |
| JPS6220891A (en) * | 1985-07-19 | 1987-01-29 | Sumitomo Metal Mining Co Ltd | Method for electrolytically collecting metal from aqueous solution containing minor amount of metal |
| CN1023905C (en) * | 1992-05-08 | 1994-03-02 | 大同市有机化工厂 | Technology and Installation for processing para-aminophenol with electrolytic reduction |
| JP4078486B2 (en) * | 2002-02-26 | 2008-04-23 | 東洋紡績株式会社 | Evaluation execution program, evaluation apparatus, evaluation method, and evaluation system |
-
1993
- 1993-05-31 CN CN93112449A patent/CN1039545C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575365A (en) * | 2009-10-13 | 2012-07-11 | 石尚烨 | Electrolyzer having increased contact specific surface area for the recovery of valuable metals |
| CN102575365B (en) * | 2009-10-13 | 2015-11-25 | 石尚烨 | Increase the valuable metal recovery electrolyzer of contact gear ratio surface-area |
| CN101891285A (en) * | 2010-07-09 | 2010-11-24 | 北京大学 | Device and method for treating phenol wastewater |
| CN101891285B (en) * | 2010-07-09 | 2011-11-02 | 北京大学 | Device and method for treating phenol wastewater |
| CN102276017A (en) * | 2010-11-16 | 2011-12-14 | 中国环境科学研究院 | Equipment and method for converting acrylic acid (acrylate) into propionic acid (propionate) |
| CN103755099A (en) * | 2014-01-20 | 2014-04-30 | 厦门绿动力环境治理工程有限公司 | Multidimensional poleless electro-oxidation wastewater treatment method |
| CN103755099B (en) * | 2014-01-20 | 2015-07-15 | 厦门绿动力环境治理工程有限公司 | Multidimensional poleless electro-oxidation wastewater treatment method |
| CN104947138A (en) * | 2015-05-19 | 2015-09-30 | 浙江工业大学 | Method for electrolytic synthesis of butanedioic acid and fixed bed electrochemical reaction device |
| CN105236629A (en) * | 2015-10-22 | 2016-01-13 | 山东龙安泰环保科技有限公司 | Double-effect electrolysis waste water treatment device |
| CN109071279A (en) * | 2015-12-22 | 2018-12-21 | 奥图泰(芬兰)公司 | Electrochemical reactor, water treatment facilities and system and water treatment facilities control method |
| CN109071279B (en) * | 2015-12-22 | 2021-08-06 | 奥图泰(芬兰)公司 | Electrochemical reactor, water treatment equipment and system and water treatment equipment control method |
| CN105951121A (en) * | 2016-05-27 | 2016-09-21 | 安庆师范大学 | Method for preparing phenol by ionic liquid assisted electric catalytic oxidation |
| CN105951121B (en) * | 2016-05-27 | 2018-03-06 | 安庆师范大学 | A kind of method that ionic liquid auxiliary electrocatalytic oxidation prepares phenol |
| CN108328704A (en) * | 2018-04-20 | 2018-07-27 | 淄博格瑞水处理工程有限公司 | Plate and frame electrolysis unit |
| CN108328704B (en) * | 2018-04-20 | 2019-05-17 | 淄博格瑞水处理工程有限公司 | Plate and frame electrolysis unit |
| CN109626523A (en) * | 2019-02-01 | 2019-04-16 | 华中师范大学 | Novel photoelectric catalytic reactor based on amberplex and its application in the treatment of waste water |
| WO2020207480A1 (en) * | 2019-04-10 | 2020-10-15 | 中国恩菲工程技术有限公司 | Copper electrodeposition device |
| CN113684492A (en) * | 2021-07-26 | 2021-11-23 | 石家庄锐氢科技有限公司 | Plate-frame type superposable water electrolysis hydrogen production PEM electrolysis device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1039545C (en) | 1998-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1039545C (en) | Frame type fixed bed electrode electrolyzer and its industrial application | |
| CN201390683Y (en) | Multistage electrolysis device for treating cyanide containing wastewater | |
| CN108456893A (en) | A kind of automatically controlled ion exchange coupling electrolytic water device and technique | |
| WO2021045614A1 (en) | Compact electrochemical stack using corrugated electrodes | |
| US20230203687A1 (en) | Membrane-stacked electrolytic bath for lithium extraction from salt lakes by electrochemical intercalation/deintercalation | |
| CN207047325U (en) | A kind of stack electro synthesis reactor for efficiently preparing hydrogen peroxide | |
| CN1035488C (en) | Bipolar oxygen-making electrochemical process and its apparatus | |
| CN201864610U (en) | Folded plate type cathode strengthening electrochemical device for treating wastewater containing heavy metal | |
| CN214361731U (en) | Ion waste liquid diaphragm electrolytic device | |
| US20240182329A1 (en) | Roll-type device for electrochemical recovery of ammonia, and method for electrochemical recovery of ammonia | |
| CN2545217Y (en) | Tubular swirl electrolyzer | |
| CN114524493B (en) | Ammonia recovery device and method for electrochemically treating nitrate wastewater | |
| CN2700345Y (en) | Radiating type electrode electrolytic cell | |
| CN203411372U (en) | Turning flow type electrochemical reactor | |
| CN1069705C (en) | Electrolytic cell | |
| CN215711966U (en) | Assembly type parallel multi-polar-plate device for treating high-chlorine organic wastewater | |
| CN201052979Y (en) | Electrochemical device for processing waste water organic matter | |
| CN205472807U (en) | Three -dimensional particle electrode reactor of column groove eight positive side columns shape | |
| CN114291873A (en) | Device and method for treating anaerobic digestion wastewater and recycling nitrogen and phosphorus resources by continuous operation of magnesium-air battery | |
| CN211689249U (en) | Device for dewatering anhydrous hydrogen fluoride | |
| CN212152452U (en) | Reactor for electrochemically synthesizing adiponitrile | |
| US20240294407A1 (en) | Device and process for electrochemical treatment of wastewater with screening current collector-based flow anode | |
| CN215102538U (en) | Reactor for electrolyzing cyanide-containing wastewater by using packed bed | |
| CN218842351U (en) | Cathode and electrode assembly for preparing reduced graphene by liquid flow continuous electrochemical reduction method | |
| CN211420326U (en) | Porous bipolar electrolytic cell for electrochemical fluorination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |