CN104711632A - Electrochemical reactor for regeneration of chemical oxygen-iodine laser materials and regeneration method - Google Patents
Electrochemical reactor for regeneration of chemical oxygen-iodine laser materials and regeneration method Download PDFInfo
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- CN104711632A CN104711632A CN201310684347.8A CN201310684347A CN104711632A CN 104711632 A CN104711632 A CN 104711632A CN 201310684347 A CN201310684347 A CN 201310684347A CN 104711632 A CN104711632 A CN 104711632A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/28—Per-compounds
- C25B1/30—Peroxides
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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Abstract
The invention relates to an electrochemical reactor for regeneration of chemical oxygen-iodine laser materials and a regeneration method. The reactor is formed by successively assembling a cathode plate, a cathode electrode, a cathode frame, a diaphragm, an anode frame, an anode electrode, an anode plate and the like, wherein the cathode frame and the anode frame are both formed by processing of acid and alkali resistant polymers. After assembled together, the cathode frame, the diaphragm and the cathode electrode are encircled to form a cathode compartment, and the anode frame, the diaphragm and the anode electrode are encircled to form an anode compartment. By the reactor, an aqueous solution of a chemical oxygen-iodine laser's product potassium chloride or sodium chloride and oxygen undergo an electrochemical reaction to be directly converted to chemical oxygen-iodine laser's required chemical raw materials chlorine and an alkaline hydrogen dioxide solution. Thus, regeneration of chemical oxygen-iodine laser materials is realized. The invention is suitable for field regeneration and reuse of chemical oxygen-iodine laser's chemical materials.
Description
Technical field
The present invention relates to COIL chemical feedstocks situ regeneration and system integration technology, specifically a kind of reactor for the regeneration of COIL raw material and renovation process thereof.
Background technology
COIL is the chemical laser uniquely successfully operating at electron state transition at present, COIL is different from the HF/HD chemical laser (wavelength 2.7-3.4 μm) of the first-generation, it has shorter wavelength (1.315 μm), is just in time positioned at atmospheric window.COIL has a good application prospect in mechanical workout, material, medical skill etc.
But COIL laser apparatus also exists its weak point, its subject matter faced is as follows: (1) its raw material-alkaline hydrogen peroxide solution, chlorine, and transport, storage all exist inconvenience to a certain degree; (2) in some application scenarios, the supply of raw material is difficult to effective guarantee or cost is huge.
Therefore, suit measures to local conditions, make full use of the generation product of COIL, a series of chemistry and chemical engineering process conversion is carried out to it and finally gets back to feed states, namely realize the situ regeneration of raw material, become the breach and gordian technique that solve COIL raw material supply problem.
Chemically chemical industry ultimate principle is said, the conversion of material is always mutually through, realize COIL product and can design a variety of route and scheme to the transformation of raw material.Compare other chemical conversion process and method, adopt electrochemical method to carry out regeneration to the chemical feedstocks of COIL and there is many-sided advantages such as high energy-conservation, high regeneration rate, atom economy, low support guarantee requirement.
The present invention is from COIL raw material supply demand, utilize electrochemical-based present principles, devise the electrochemical regeneration reactor of COIL chemical feedstocks and propose corresponding renovation process, this reactor only needs electric energy input can realize the regeneration of COIL chemical feedstocks, to solve COIL raw material supply problem, to expand its applied environment significant.
Summary of the invention
In order to solve the raw material supply problem that COIL faces in some application scenarios, the present invention is from COIL raw material supply demand, utilize electrochemical-based present principles, propose a kind of electrochemical reactor for the regeneration of COIL raw material and renovation process thereof, technical scheme is as follows:
A kind of electrochemical reactor for the regeneration of COIL raw material, electrochemical method is utilized to be reacted through one-step electrolysis by the product of COIL, directly, efficiently change raw material into, be constructed as follows: positive plate, anode electrode, anode frame, barrier film, negative electrode frame, cathode electrode, negative plate; Anode electrode and barrier film and anode frame surround anolyte compartment, cathode electrode and barrier film and negative electrode frame surround cathode compartment, wherein negative plate bottom has oxygen or air inlet, negative plate top has oxygen or air outlet, positive plate top has chlorine air outlet, spout is all arranged at negative electrode frame and anode frame top, all there is liquid outlet bottom, and negative plate and positive plate are carved with gas distribution groove and runner by electrode side.Wherein, negative electrode frame and anode frame are tetrafluoroethylene or polysulfones processes, negative plate and positive plate are graphite cake or the stainless steel plate through electroplate or gold, anode activeconstituents is that carbon carries ruthenium dioxide, carbon carries ruthenium, carbon carries one or more the mixture in platinum-ruthenium alloys, cathode active ingredient is Nano graphite powder, carbon dust, carbon nanotube, one or more mixture in Graphene or nanometer gold, barrier film is PTFE Type cationic exchange membrane, asbestos mould, fibreglass diaphragm or non-woven fabrics, be preferably PTFE Type cationic exchange membrane, more preferably perfluoro sulfonic acid membrane, anode and cathode electrode forms for being coated with porous carbon paper thereon for supporter or spraying a certain amount of activeconstituents.
A kind of renovation process of COIL raw material, above-mentioned electrochemical reactor is used to carry out the regeneration of COIL raw material, process is as follows: the certain density Repone K obtained by COIL product separation or sodium chloride aqueous solution are input to electrochemical reactor cathode side, pass into certain density potassium hydroxide or aqueous sodium hydroxide solution in anode electrolytic cell side; Pass into oxygen or air at reactor cathode side oxygen/gas inlet place, be set to certain flow; Setting direct current power source voltage, energising makes reactor start working, and now anode side chlorion loses electronics and is oxidized to chlorine and separates out, and the two-electron reduction reaction of cathode side generation oxygen generates the mixture of alkali and hydrogen peroxide; After energising for some time, have a power failure by the discharge of materials in above-mentioned electrochemical reactor to storage tank, again repetition above-mentioned steps from step a), namely obtain the chemical feedstocks-chlorine needed for COIL and alkaline hydrogen peroxide.In said process, it is 4.0-5.5V that direct current power source voltage amounts to single-unit reactor voltage, and be preferably 4.5-5.0V, anode Repone K or sodium chloride aqueous solution concentration are 1.0-4.5mol/L, is preferably 3.0-4.5mol/L.
The present invention compares traditional chemical process, with the obvious advantage.First, flow process is simple, and chemical laser " waste material " transforms in order to raw material through electrochemical reactor one step; Secondly, high energy saving, no matter which kind of environment is the method be in, its conversion process strictly observes Faraday's law, how many electricity is had to input the Substance Transformation just producing corresponding measurement ratio, main loss comes from electrochemical polarization and can be well controlled, and temperature of reaction is generally close to room temperature, do not need extra power consumption; Again, regeneration rate is high, and in the present invention, reaction product is without the need to being separated, and Production Flow Chart is short, and middle loss is low; Finally, support guarantee and require low, only need electric energy.
Accompanying drawing explanation
Fig. 1 is the structure composition schematic diagram of the electrochemical reactor described in this patent.
Wherein, 1-positive plate; 2-anode electrode; 3-anode frame; 4-anolyte compartment; 5-barrier film; 6-negative electrode frame; 7-cathode electrode; 8-cathode compartment; 9-negative plate.
Fig. 2 is in embodiment 1, and electrochemical reactor negative plate, positive plate are by cathode compartment, anolyte compartment one side runner schematic diagram.
Embodiment:
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1
Anode uses RuO
2/ C is as catalyzer, and negative electrode adopts Graphite Powder 99 as catalyzer.Preparation anode and cathode electrode, its process is as follows: carbon paper is immersed 1 to 2min in the PTFE emulsion of 10wt%, takes out post-drying, removing moisture wherein.The amount of PTFE can be obtained by the weight weighed before and after dipping PTFE, repeatedly repeatedly carry out said process until the amount immersing the PTFE of carbon paper reaches the requirement of setting.Then the carbon paper after above-mentioned hydrophobic treatment is put into retort furnace 245 DEG C and process half an hour, to remove the tensio-active agent in PTFE emulsion.And then process half an hour at 345 DEG C, make PTFE melting and form hydrophobic network on carbon paper fiber.PTFE content is 10wt.%.Supporting layer also needs prepare one deck microporous layers, so that the supporting of catalyzer.Take after a certain amount of carbon dust adds a certain amount of dehydrated alcohol and mix and ultrasonic half an hour, then by its with PTFE emulsion by PTFE: the mass ratio of carbon dust=3:7 mixes, more ultrasonic half an hour.After mixing, heating aggregation in the water-bath of 40 DEG C, makes it form thick slurry.Evenly be coated on the carbon paper of above-mentioned hydrophobisation process with the method for coating, make its surfacing and there is suitable pore structure.Room temperature processes half an hour at 245 DEG C after drying, removing tensio-active agent.Then process half an hour at 345 DEG C, make wherein PTFE melting.In experiment, in microporous layers, the load amount of carbon dust is 1.5mg cm
-2, PTFE can convert according to the above ratio and obtain.Virahol is adopted to be that solvent is by RuO
2after/C powder or Graphene mix with PTFE emulsion, evenly ultrasonic, obtain slurry.Then it is evenly coated with and scrapes with on the carbon paper of microporous layers.The load amount of the catalyzer on anode electrode is 1mgRuO
2cm
-2, on cathode electrode, Graphene load amount is 1mg cm
-2.Room temperature processes half an hour at 245 DEG C after drying, and removing tensio-active agent, obtains anodic-cathodic.
Der group described in above-mentioned anodic-cathodic and graphite cathode plate, graphite anode plate and tetrafluoroethylene negative electrode frame, tetrafluoroethylene anode frame by specification is fitted together, namely obtains the electrochemical reactor for the regeneration of COIL raw material.
The potassium chloride solution of the 4mol/L obtained by COIL product separation is input to electrochemical reactor cathode side, passes into the potassium hydroxide that concentration is 5mol/L or aqueous sodium hydroxide solution in anode electrolytic cell side; Pass into oxygen or air at reactor cathode side oxygen/gas inlet place, be set to certain flow; Setting direct current power source voltage is 4.5V, and energising makes reactor start working, and conduction time, 2h, had a power failure the discharge of materials in above-mentioned electrochemical reactor to storage tank.Volumetry testing producing goes out concentration of hydrogen peroxide, and result is 0.563mol/L.
Claims (10)
1., for an electrochemical reactor for COIL raw material regeneration, it is characterized in that:
Electrochemical method is utilized to change the product of COIL into raw material, being constructed as follows of reactor through one-step electrolysis reaction: positive plate (1), anode electrode (2), anode frame (3), barrier film (5), negative electrode frame (6), cathode electrode (8), negative plate (9);
Anode electrode (2) surrounds anolyte compartment (4) with barrier film (5) and anode frame (3), cathode electrode (8) surrounds cathode compartment (7) with barrier film (5) and negative electrode frame (6), wherein negative plate (1) bottom has oxygen or air inlet, negative plate (1) top has oxygen or air outlet, positive plate (9) top has chlorine air outlet, spout is all arranged at negative electrode frame (6) and anode frame (3) top, all there is liquid outlet bottom, and negative plate (9) and positive plate (1) are by gas distribution groove and runner are carved with in electrode side.
2. a kind of electrochemical reactor for the regeneration of COIL raw material according to claim 1, is characterized in that:
Wherein negative electrode frame (6) and anode frame (3) is tetrafluoroethylene or polysulfones processes.
3. a kind of electrochemical reactor for the regeneration of COIL raw material according to claim 1, is characterized in that:
Negative plate and positive plate are graphite cake or the stainless steel plate through electroplate or gold.
4. a kind of electrochemical reactor for the regeneration of COIL raw material according to claim 1, is characterized in that:
Described anode activeconstituents is that carbon carries ruthenium dioxide, carbon carries ruthenium, carbon carries in platinum-ruthenium alloys one or more.
5. a kind of electrochemical reactor for the regeneration of COIL raw material according to claim 1, is characterized in that:
Described cathode active ingredient is one or more in Nano graphite powder, carbon dust, carbon nanotube, Graphene or nanometer gold.
6. a kind of electrochemical reactor for the regeneration of COIL raw material according to claim 1, is characterized in that:
Described barrier film is PTFE Type cationic exchange membrane, asbestos mould, fibreglass diaphragm or non-woven fabrics.
7. a kind of electrochemical reactor for COIL regeneration according to claim 1, is characterized in that:
Anode and cathode electrode forms for being coated with porous carbon paper thereon for supporter or spraying activeconstituents.
8. a renovation process for COIL raw material, is characterized in that:
Use the electrochemical reactor described in claim 1 to carry out the regeneration of COIL raw material, process is as follows:
A) Repone K obtained by COIL product separation or sodium chloride aqueous solution are input to electrochemical reactor cathode side, pass into potassium hydroxide or aqueous sodium hydroxide solution in anode electrolytic cell side;
B) pass into oxygen or air at reactor cathode side oxygen/gas inlet place, be set to certain flow;
C) set direct current power source voltage, energising makes reactor start working, and now anode side chlorion loses electronics and is oxidized to chlorine and separates out, and the two-electron reduction reaction of cathode side generation oxygen generates the mixture of alkali and hydrogen peroxide;
D) reactor is energized after for some time, has a power failure by the discharge of materials in above-mentioned electrochemical reactor to storage tank, again repetition above-mentioned steps from step a), namely obtain the chemical feedstocks-chlorine needed for COIL and alkaline hydrogen peroxide.
9. the renovation process of a kind of COIL raw material according to claim 8, is characterized in that: it is 4.0-5.5V that direct current power source voltage amounts to single-unit reactor voltage.
10. the renovation process of a kind of COIL raw material according to claim 8, is characterized in that: anode Repone K or sodium chloride aqueous solution concentration are 1.0-4.5mol/L.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106367776A (en) * | 2016-11-18 | 2017-02-01 | 上海顶信医疗设备股份有限公司 | Electrolysis device and gas output equipment used for outputting hydrogen-containing mixed gas and provided with electrolysis device |
Citations (6)
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US4357217A (en) * | 1981-10-02 | 1982-11-02 | Occidental Research Corporation | Three compartment electrolytic cell method for producing hydrogen peroxide |
US4511411A (en) * | 1982-09-07 | 1985-04-16 | Vereinigte Drahtwerke Ag | Method of forming a hard surface layer on a metal component |
US4969981A (en) * | 1988-09-19 | 1990-11-13 | H-D Tech Incorporated | Cell and method of operating a liquid-gas electrochemical cell |
US5244547A (en) * | 1990-04-16 | 1993-09-14 | H-D Tech Incorporated | Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions |
US6004449A (en) * | 1998-02-09 | 1999-12-21 | Boeing North American, Inc. | Method of operating electrolytic cell to produce highly concentrated alkaline hydrogen peroxide |
CN101748426A (en) * | 2008-12-04 | 2010-06-23 | 北京有色金属研究总院 | Preparation method of foam electrode for water electrolysis |
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2013
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Patent Citations (6)
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US4357217A (en) * | 1981-10-02 | 1982-11-02 | Occidental Research Corporation | Three compartment electrolytic cell method for producing hydrogen peroxide |
US4511411A (en) * | 1982-09-07 | 1985-04-16 | Vereinigte Drahtwerke Ag | Method of forming a hard surface layer on a metal component |
US4969981A (en) * | 1988-09-19 | 1990-11-13 | H-D Tech Incorporated | Cell and method of operating a liquid-gas electrochemical cell |
US5244547A (en) * | 1990-04-16 | 1993-09-14 | H-D Tech Incorporated | Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions |
US6004449A (en) * | 1998-02-09 | 1999-12-21 | Boeing North American, Inc. | Method of operating electrolytic cell to produce highly concentrated alkaline hydrogen peroxide |
CN101748426A (en) * | 2008-12-04 | 2010-06-23 | 北京有色金属研究总院 | Preparation method of foam electrode for water electrolysis |
Non-Patent Citations (1)
Title |
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JOHN VETROVEC: "electrochemical production of basic hydrogen peroxide and chlorine for use in chemical oxygen-iodine laser", 《XII INTERNATIONAL SYMPOSIUM ON GAS FLOW AND CHEMICAL LASERS AND HIGH-POWER LASER CONFERENCE》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106367776A (en) * | 2016-11-18 | 2017-02-01 | 上海顶信医疗设备股份有限公司 | Electrolysis device and gas output equipment used for outputting hydrogen-containing mixed gas and provided with electrolysis device |
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