CN103409770B - A kind of perchlorate electrolyzer and electrolysis process - Google Patents
A kind of perchlorate electrolyzer and electrolysis process Download PDFInfo
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- CN103409770B CN103409770B CN201310332141.9A CN201310332141A CN103409770B CN 103409770 B CN103409770 B CN 103409770B CN 201310332141 A CN201310332141 A CN 201310332141A CN 103409770 B CN103409770 B CN 103409770B
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Abstract
The present invention discloses a kind of perchlorate electrolyzer, comprise some electrolyzers, described electrolyzer is divided at least three groups, often the electrolyzer in group is connected in series, described electrolyzer of often organizing also is connected in series a circulation barrel, described circulation barrel is ladder distribution, is connected by upflow tube between described circulation barrel, and the upflow tube being positioned at the described circulation barrel of extreme lower position connects the complete liquid storage groove of electrolysis. Perchlorate electrolysis process is: carrying out electrolysis in electrolyzer by chlorate electrolysis liquid and obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product; Wherein, electrolysis process comprises: the cyclic electrolysis carrying out electrolytic solution by above-mentioned perchlorate electrolyzer, and controls electrolysis temperature and be 60-70 DEG C. Perchlorate electrolyzer provided by the invention and electrolysis process, have the advantages such as the transformation efficiency that can improve current efficiency, oxymuriate.
Description
Technical field
The present invention relates to perchlorate electrolysis tech field, it is specifically related to a kind of perchlorate electrolyzer and electrolysis process.
Background technology
Perchlorate electrolysis process chlorate electrolysis liquid carries out electrolysis in electrolyzer obtain the complete liquid of electrolysis, and the complete liquid of electrolysis is for the production of perchlorate product. In prior art, perchlorate electrolysis process mainly adopts the mode of single groove continuous electrolysis, single groove continuous electrolysis, and in electrolyzer, the concentration of oxymuriate is lower, and current efficiency is low, the low conversion rate of oxymuriate; And in electrolytic process, the processing parameter of each electrolyzer to be carried out strict control, reference mark is many, and technique controlling difficulty strengthens.
Summary of the invention
It is an object of the invention to overcome above shortcoming, it is provided that the perchlorate electrolyzer of a kind of transformation efficiency that can improve current efficiency, oxymuriate and electrolysis process.
The technical scheme of the present invention is:
A kind of perchlorate electrolyzer, comprise some electrolyzers, described electrolyzer is divided at least three groups, often the electrolyzer in group is connected in series, described electrolyzer of often organizing also is connected in series a circulation barrel, described circulation barrel is ladder distribution, is connected by upflow tube between described circulation barrel, and the upflow tube being positioned at the described circulation barrel of extreme lower position connects the complete liquid storage groove of electrolysis.
Further, being provided with cathode cage in described electrolyzer, described cathode cage is made up of some leads, and the center of described every root leads is provided with hard cores bar.
Further, described cathode cage also comprises the first insulation explosion-proof cover, and described first insulation explosion-proof is set on described cathode cage top, and described leads runs through described first insulation explosion-proof cover.
Further, described electrolyzer also comprises anode electrode, and described anode electrode is arranged in described cathode cage, the top jointed anode circle of described anode electrode, is provided with annular silver sheet between described anode electrode and described anode circle.
Further, described anode electrode being set with the 2nd insulation explosion-proof cover, described 2nd insulation explosion-proof is set on below described anode circle.
Further, described electrolyzer also comprises seal cover board, being connected with tail gas recycle explosion-proof equipment on described seal cover board, described tail gas recycle explosion-proof equipment comprises interconnective tail gas recycle pipe and vent gas treatment tower, and described tail gas recycle pipe is provided with tail gas induced draft fan.
A kind of perchlorate electrolysis process, in electrolyzer, carry out electrolysis by chlorate electrolysis liquid and obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product, described electrolysis process comprises: the cyclic electrolysis carrying out electrolytic solution by perchlorate electrolyzer according to claim 1, and control electrolysis temperature and be 60-70 DEG C, obtain the complete liquid of electrolysis.
Further, controlling concentration when chlorate electrolysis liquid enters described electrolyzer is 600-680g/L.
Further, the current density controlling electrode in electrolysis process is 1200-1300A/m2; Current concentration in electrolyzer is 5000-6000A/m3; Bath voltage is 4-5 volt.
Further, in the complete liquid of described electrolysis, the concentration of oxymuriate is 6-25g/L.
Perchlorate electrolyzer provided by the invention and electrolysis process, tool has the following advantages:
1, perchlorate electrolyzer provided by the invention and electrolysis process, can improve the transformation efficiency of current efficiency, oxymuriate. Perchlorate electrolyzer provided by the invention, comprise some electrolyzers, described electrolyzer is divided at least three groups, often the electrolyzer in group is connected in series, described electrolyzer of often organizing also is connected in series a circulation barrel, described circulation barrel is ladder distribution, is connected by upflow tube between described circulation barrel, and the upflow tube being positioned at the described circulation barrel of extreme lower position connects the complete liquid storage groove of electrolysis. Corresponding electrolysis process comprises: the cyclic electrolysis carrying out electrolytic solution by above-mentioned perchlorate electrolyzer, and controls electrolysis temperature and be 60-70 DEG C, obtains the complete liquid of electrolysis.
By electrolyzer being divided at least three groups, often organizing electrolyzer and forming an internal recycle, the speed of reaction of electrolytic solution in working cycle can be improved, it is to increase current efficiency; Meanwhile, often organizing a series connection circulation barrel in electrolyzer, all circulation barrels are ladder distribution, and realize step gravity flow by circulation barrel. While electrolyzer forms internal recycle, increase the circulation barrel of ladder distribution, strengthen the circulation of electrolytic solution in whole technique, reduce in electrolytic solution the concentration of the bubble produced, thus decrease the resistance because bubble concentration produces, reduce bath voltage, further increase current efficiency.
By increasing the circulation of electrolytic solution in whole technique, except speed of reaction is improved, the completeness of reaction is significantly improved, thus the transformation efficiency of oxymuriate is significantly improved within the measured response time, and transformation efficiency can reach 96-99%.
2, perchlorate electrolyzer provided by the invention and electrolysis process, electrolytic solution carries out electrolysis by multiple stage circulation, and multiple stage circulation technique forms continuous production, therefore, can using the whole recycle system as a control objectives, compared with single groove electrolysis process, decrease production control point, the index parameter of the whole recycle system is unified control, ensure the homogeneity produced, further increase the speed of electrolytic reaction, reduce bath voltage, and decrease the labour intensity of workman.
3, perchlorate electrolyzer provided by the invention, the pole of electrolyzer inner cathode and anode is apart from evenly, good conductivity, further increases current efficiency. Perchlorate electrolyzer provided by the invention, is provided with cathode cage in electrolyzer, cathode cage is made up of some leads, and the center of every root leads is provided with hard cores bar. At the center of leads, hard cores bar is set, leads was both provided with rigid, remain again the flexibility of leads itself and good electroconductibility, in electrolysis process, leads is not flexible, such that it is able to ensure the homogeneity of pole distance, in electrolyzer, distribution of current is even, improve current efficiency, reduce electricity consumption.
4, perchlorate electrolysis process provided by the invention, is optimized the parameter in electrolysis process, makes the parameters such as concentration of electrolyte, current density, current concentration, bath voltage be in optimum regime, thus improves electrolytic reaction speed, and electrolytic efficiency.
5, perchlorate electrolyzer provided by the invention, at the top of cathode cage or/and the top of anode electrode arranges insulation explosion-proof cover, effectively can prevent negative electrode or/and crystalline polamer occurs at the top of anode, thus decrease the resistance because crystalline polamer causes, improve current efficiency, simultaneously, it is also possible to reduce the probability of the electrolyzer blast caused because of crystallization, improve the operation conditions of electrolyzer.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in embodiment being described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of perchlorate electrolyzer of the present invention;
Fig. 2 is the structural representation of cathode cage in perchlorate electrolyzer of the present invention;
Fig. 3 is the structural representation of leads in Fig. 2;
Fig. 4 is the structural representation of anode electrode in perchlorate electrolyzer of the present invention;
Fig. 5 is the enlarged view of the vertical view of Fig. 4;
Fig. 6 is the structural representation that in perchlorate electrolyzer of the present invention, electrolyzer is provided with tail gas recycle explosion-proof equipment;
Reference numeral: 1-electrolyzer, 2-circulation barrel, 3-upflow tube, the complete liquid storage groove of 4-electrolysis, 5-leads, 6-hard cores bar, 7-first insulation explosion-proof cover, 8-cathode ear, 9-anode electrode, 10-anode circle, 11-annular silver sheet, 12-the 2nd insulation explosion-proof cover, 13-seal cover board, 14-tail gas recycle explosion-proof equipment, 15-tail gas recycle pipe, 16-tail gas induced draft fan, 17-vent gas treatment tower.
Embodiment
It is clearly and completely described to the technical scheme in the embodiment of the present invention below, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Composition graphs 1, perchlorate electrolyzer structure is as follows:
A kind of perchlorate electrolyzer, comprise some electrolyzers 1, electrolyzer is divided at least three groups, often the electrolyzer in group is connected in series, described electrolyzer of often organizing also is connected in series a circulation barrel 2, circulation barrel 2 is distribution in ladder, is connected by upflow tube 3 between circulation barrel 2, and the upflow tube being positioned at the circulation barrel 3 of extreme lower position connects the complete liquid storage groove 4 of electrolysis. A circulation barrel and multiple electrolyzer form an internal recycle. Such as Fig. 1, electrolyzer being divided into three groups, often group is containing three electrolyzers and a circulation barrel.
Corresponding perchlorate electrolysis process is: by concentration to be 700g/L, PH value be 6.5 chlorate electrolysis liquid inject continuously in electrolyzer, switch on power, make electrolytic solution at electrolyzer Inner electrolysis, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product. Electrolysis process carries out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 60 DEG C, and electrolytic solution is flowed step by step by circulation barrel, flows into the complete liquid storage groove of electrolysis, for the preparation of perchlorate after last step circulation barrel.
In above-mentioned electrolysis process, control current density is 1150A/m2; Current concentration in electrolyzer is 4800A/m3; Bath voltage is 4 volts, and it is 80h that electrolysis obtains the time of 10 tons of complete liquid of electrolysis, and in the complete liquid of electrolysis, the concentration of oxymuriate is 70g/L, and the transformation efficiency of oxymuriate is 90%. The electricity consumption of every ton of complete liquid of electrolysis is 1800kw h.
Perchlorate electrolyzer provided by the invention and electrolysis process, by electrolyzer is divided at least three groups, often organizes electrolyzer and form an internal recycle, can improve the speed of reaction of electrolytic solution in working cycle, it is to increase current efficiency; Meanwhile, often organizing a series connection circulation barrel in electrolyzer, all circulation barrels are ladder distribution, and realize step gravity flow by circulation barrel. While electrolyzer forms internal recycle, increase the circulation barrel of ladder distribution, strengthen the circulation of electrolytic solution in whole technique, reduce in electrolytic solution the concentration of the bubble produced, thus decrease the resistance because bubble concentration produces, reduce bath voltage, further increase current efficiency.
Embodiment 2
Composition graphs 1 to Fig. 3, perchlorate electrolyzer structure is as follows:
A kind of perchlorate electrolyzer, comprise some electrolyzers 1, electrolyzer is divided into four groups, often the electrolyzer in group is connected in series, described electrolyzer of often organizing also is connected in series a circulation barrel 2, circulation barrel 2 is distribution in ladder, is connected by upflow tube 3 between circulation barrel 2, and the upflow tube being positioned at the circulation barrel 3 of extreme lower position connects the complete liquid storage groove 4 of electrolysis. A circulation barrel and multiple electrolyzer form an internal recycle. The assembling of electrolyzer can be: 12 electrolyzers are divided into four groups, and often group is composed in series by three electrolyzers and a circulation barrel, and the quantity of circulation barrel is many, and the recurring series of electrolytic solution increases, and the transformation efficiency of electrolytic reaction improves. The accompanying drawing 1 that the present embodiment is corresponding does corresponding change.
Being provided with cathode cage in electrolyzer, as shown in Figure 2 and Figure 3, cathode cage is made up of some leads 5, and the center of every root leads 5 is provided with hard cores bar 6. At the center of leads 5, hard cores bar 6 is set, leads 5 was both provided with rigid, not flexible, remain again the flexibility of leads itself and good electroconductibility, in electrolysis process, anode electrode is arranged in cathode cage, when leads is not flexible, ensure that the homogeneity of pole distance, in electrolyzer, distribution of current is even, improve electrolytic efficiency, reduce electricity consumption. Hard cores bar 6 is hard metal bar or alloy hard metal bar, makes leads not flexible, and hard cores bar is corrosion-resistant.
Cathode cage also comprises cathode ear 8, and cathode ear 8 is cathode guide electroplax, is connected with the bus outside electrolyzer. Being provided with connection hole identical with leads number on cathode ear, connect hole and be evenly distributed on a circumference face, leads is through connecting hole, and is welded and fixed. The some leads composition annular leads assemblies being connected with cathode ear. Wherein, cathode ear preferably adopts the copper casting of 95%, and existing good electroconductibility, can reduce resistance, prevents heating, and erosion resistance is stronger than fine copper.
Preferably, cathode cage also comprises the first insulation explosion-proof cover 7, first insulation explosion-proof cover 7 and is arranged on cathode cage top, and leads 5 runs through the first insulation explosion-proof cover 7. Cathode cage top arranges the first insulation explosion-proof cover, can prevent the leads top of cathode cage from the phenomenon of crystallization occurring, thus decrease the resistance because crystalline polamer causes, improve current efficiency, simultaneously, it is also possible to reduce the probability of the electrolyzer blast caused because of crystallization, improve the operation conditions of electrolyzer.
Because electrolytic efficiency improves, in electrolysis process, do not need additionally to add fluorochemical for improving electrolytic efficiency, thus solve the problem that in tradition perchlorate electrolysis process salt Water Sproading, fluorion is difficult, reduce salt solution cost recovery, and meet the requirement of environmental protection production.
Corresponding perchlorate electrolysis process is: by concentration to be 600g/L, PH value be 6 chlorate electrolysis liquid inject continuously in electrolyzer, switch on power, make electrolytic solution at electrolyzer Inner electrolysis, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product. Electrolysis process carries out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 65 DEG C, and electrolytic solution is flowed step by step by circulation barrel, flows into the complete liquid storage groove of electrolysis, for the preparation of perchlorate after last step circulation barrel.
In above-mentioned electrolysis process, control current density is 1200A/m2; Current concentration in electrolyzer is 5000A/m3; Bath voltage is 4.2 volts, and it is 82h that electrolysis obtains the time of 10 tons of complete liquid of electrolysis, and in the complete liquid of electrolysis, the concentration of oxymuriate is 18g/L, and the transformation efficiency of oxymuriate is 97%. The electricity consumption of every ton of complete liquid of electrolysis is 2200kw h.
Embodiment 3
Composition graphs 1 to Fig. 5, perchlorate electrolyzer structure is as follows:
A kind of perchlorate electrolyzer, comprise some electrolyzers 1, electrolyzer is divided into five groups, often the electrolyzer in group is connected in series, described electrolyzer of often organizing also is connected in series a circulation barrel 2, circulation barrel 2 is distribution in ladder, is connected by upflow tube 3 between circulation barrel 2, and the upflow tube being positioned at the circulation barrel 3 of extreme lower position connects the complete liquid storage groove 4 of electrolysis. A circulation barrel and multiple electrolyzer form an internal recycle. The assembling of electrolyzer can be: 20 electrolyzers are divided into five groups, and often group is composed in series by four electrolyzers and a circulation barrel, and the quantity of circulation barrel is many, and the recurring series of electrolytic solution increases, and the transformation efficiency of electrolytic reaction improves. Equally, the accompanying drawing 1 that the present embodiment is corresponding does corresponding change.
Being provided with cathode cage in electrolyzer, as shown in Figure 2 and Figure 3, cathode cage is made up of some leads 5, and the center of every root leads 5 is provided with hard cores bar 6. At the center of leads 5, hard cores bar 6 is set, leads 5 was both provided with rigid, not flexible, remain again the flexibility of leads itself and good electroconductibility, in electrolysis process, anode electrode is arranged in cathode cage, when leads is not flexible, ensure that the homogeneity of pole distance, in electrolyzer, distribution of current is even, improve electrolytic efficiency, reduce electricity consumption.
Preferably, cathode cage also comprises the first insulation explosion-proof cover 7, first insulation explosion-proof cover 7 and is arranged on cathode cage top, and leads 5 runs through the first insulation explosion-proof cover 7. Cathode cage top arranges the first insulation explosion-proof cover, can prevent the leads top of cathode cage from the phenomenon of crystallization occurring, thus decrease the resistance because crystalline polamer causes, improve current efficiency, simultaneously, it is also possible to reduce the probability of the electrolyzer blast caused because of crystallization, improve the operation conditions of electrolyzer.
Electrolyzer also comprises anode electrode 9, and anode electrode is arranged in cathode cage, and as shown in Figure 4, Figure 5, the top jointed anode circle 10 of anode electrode 9, is provided with annular silver sheet 11 between anode electrode 9 and anode circle 10. By arranging annular silver sheet between anode electrode and anode circle, making anode electrode, annular silver sheet, anode circle form entirety, anode circle not easily loosens, thus improves the contact performance of anode circle and anode electrode, and contact is good; Meanwhile, the conductivity of silver sheet is good, even if increasing silver chip architecture between anode circle and anode electrode, also can not have influence on the electroconductibility of anode electrode. Because anode circle contacts well with anode electrode, the resistance of anode electrode can be reduced, prevent plate resistance from generating heat, reduce the probability of the electrolyzer blast caused because generating heat; Reduce the electricity consumption of perchlorate electrolysis simultaneously.
Preferably, anode electrode 9 is set with the 2nd insulation explosion-proof cover the 12, two insulation explosion-proof cover 12 be arranged on below anode circle 10. By arranging the 2nd insulation explosion-proof cover on the anode electrode, can prevent anode electrode 9 top from the phenomenon of crystallization occurring, thus further reduce the resistance because anode electrode crystalline polamer causes, improve current efficiency, simultaneously, the probability of the electrolyzer blast caused because of crystallization can also be reduced, improve the operation conditions of electrolyzer.
Because electrolytic efficiency improves, in electrolysis process, do not need additionally to add fluorochemical for improving electrolytic efficiency, thus solve the problem that in tradition perchlorate electrolysis process salt Water Sproading, fluorion is difficult, reduce salt solution cost recovery, and meet the requirement of environmental protection production.
Corresponding perchlorate electrolysis process is: by concentration to be 650g/L, PH value be 6.8 chlorate electrolysis liquid inject continuously in electrolyzer, switch on power, make electrolytic solution at electrolyzer Inner electrolysis, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product. Electrolysis process carries out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 70 DEG C, and electrolytic solution is flowed step by step by circulation barrel, flows into the complete liquid storage groove of electrolysis, for the preparation of perchlorate after last step circulation barrel.
In above-mentioned electrolysis process, control current density is 1250A/m2; Current concentration in electrolyzer is 5500A/m3; Bath voltage is 4.5 volts, and it is 91h that electrolysis obtains the time of 10 tons of complete liquid of electrolysis, and in the complete liquid of electrolysis, the concentration of oxymuriate is 6g/L, and the transformation efficiency of oxymuriate is 99%. The electricity consumption of every ton of complete liquid of electrolysis is 2600kw h.
Embodiment 4
Composition graphs 1 to Fig. 6, the structure of the perchlorate electrolyzer of the present embodiment, based on the electrolyzer structure of embodiment 3, is divided into six groups by electrolyzer, and for 30 electrolyzers, often group is made up of five electrolyzers and a circulation barrel.
In addition, as shown in Figure 6, electrolyzer 1 also comprises seal cover board 13, and seal cover board 13 is connected with tail gas recycle explosion-proof equipment 14, tail gas recycle explosion-proof equipment 14 comprises interconnective tail gas recycle pipe 15 and vent gas treatment tower 17, and tail gas recycle pipe 15 is provided with tail gas induced draft fan 16. The seal cover board 13 of electrolyzer connects tail gas recycle explosion-proof equipment 14, by tail gas induced draft fan 16, the gas in electrolyzer is drawn, then drain into vent gas treatment tower 17, carry out tail gas clean-up process. By tail gas recycle explosion-proof equipment, the mixed gas in electrolyzer is drawn continuously, makes the density of hydrogen in electrolyzer lower than Lower Explosive Limit value, has stopped to produce the possibility of blast because density of hydrogen is too high from source.
Corresponding perchlorate electrolysis process is: by concentration to be 680g/L, PH value be 7 chlorate electrolysis liquid inject continuously in electrolyzer, switch on power, make electrolytic solution at electrolyzer Inner electrolysis, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product. Electrolysis process carries out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 68 DEG C, and electrolytic solution is flowed step by step by circulation barrel, flows into the complete liquid storage groove of electrolysis, for the preparation of perchlorate after last step circulation barrel.
In above-mentioned electrolysis process, control current density is 1300A/m2; Current concentration in electrolyzer is 6000A/m3; Bath voltage is 5 volts, and it is 72h that electrolysis obtains the time of 10 tons of complete liquid of electrolysis, and in the complete liquid of electrolysis, the concentration of oxymuriate is 13g/L, and the transformation efficiency of oxymuriate is 98%. The electricity consumption of every ton of complete liquid of electrolysis is 2400kw h.
Embodiment 5
Composition graphs 1 to Fig. 6, the structure of the perchlorate electrolyzer of the present embodiment, based on the electrolyzer structure of embodiment 4, is divided into five groups by electrolyzer, and for 40 electrolyzers, often group is made up of eight electrolyzers and a circulation barrel.
Corresponding perchlorate electrolysis process is: by concentration to be 625g/L, PH value be 6.3 chlorate electrolysis liquid inject continuously in electrolyzer, switch on power, make electrolytic solution at electrolyzer Inner electrolysis, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product. Electrolysis process carries out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 62 DEG C, and electrolytic solution is flowed step by step by circulation barrel, flows into the complete liquid storage groove of electrolysis, for the preparation of perchlorate after last step circulation barrel.
In above-mentioned electrolysis process, control current density is 1280A/m2; Current concentration in electrolyzer is 5600A/m3; Bath voltage is 4.3 volts, and it is 77h that electrolysis obtains the time of 10 tons of complete liquid of electrolysis, and in the complete liquid of electrolysis, the concentration of oxymuriate is 25g/L, and the transformation efficiency of oxymuriate is 96%. The electricity consumption of every ton of complete liquid of electrolysis is 2300kw h.
Embodiment 6
Composition graphs 1 to Fig. 6, the structure of the perchlorate electrolyzer of the present embodiment, based on the electrolyzer structure of embodiment 4, is divided into five groups by electrolyzer, and for 25 electrolyzers, often group is connected in series by five electrolyzers and a circulation barrel and forms.
Corresponding perchlorate electrolysis process is: by concentration to be 660g/L, PH value be 6.7 chlorate electrolysis liquid inject continuously in electrolyzer, switch on power, make electrolytic solution at electrolyzer Inner electrolysis, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product. Electrolysis process carries out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 64 DEG C, and electrolytic solution is flowed step by step by circulation barrel, flows into the complete liquid storage groove of electrolysis, for the preparation of perchlorate after last step circulation barrel.
In above-mentioned electrolysis process, control current density is 1260A/m2; Current concentration in electrolyzer is 5400A/m3; Bath voltage is 4.2 volts, and it is 86h that electrolysis obtains the time of 10 tons of complete liquid of electrolysis, and in the complete liquid of electrolysis, the concentration of oxymuriate is 13g/L, and the transformation efficiency of oxymuriate is 98%. The electricity consumption of every ton of complete liquid of electrolysis is 2250kw h.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all do in protection scope of the present invention any amendment, equivalent replacement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a perchlorate electrolyzer, comprise some electrolyzers, it is characterized in that, described electrolyzer is divided at least three groups, often the electrolyzer in group is connected in series, described electrolyzer of often organizing also is connected in series a circulation barrel, described often group electrolyzer and described circulation barrel form an internal recycle, described circulation barrel is ladder distribution, connected by upflow tube between described circulation barrel, the upflow tube being positioned at the described circulation barrel of extreme lower position connects the complete liquid storage groove of electrolysis, it is provided with cathode cage in described electrolyzer, described cathode cage is made up of some leads, the center of described every root leads is provided with hard cores bar, described cathode cage also comprises the first insulation explosion-proof cover, described first insulation explosion-proof is set on described cathode cage top, described leads runs through described first insulation explosion-proof cover.
2. perchlorate electrolyzer according to claim 1, it is characterized in that, described electrolyzer also comprises anode electrode, and described anode electrode is arranged in described cathode cage, the top jointed anode circle of described anode electrode, is provided with annular silver sheet between described anode electrode and described anode circle.
3. perchlorate electrolyzer according to claim 2, it is characterised in that, described anode electrode is set with the 2nd insulation explosion-proof cover, described 2nd insulation explosion-proof is set on below described anode circle.
4. perchlorate electrolyzer according to any one of claim 1-3, it is characterized in that, described electrolyzer also comprises seal cover board, described seal cover board is connected with tail gas recycle explosion-proof equipment, described tail gas recycle explosion-proof equipment comprises interconnective tail gas recycle pipe and vent gas treatment tower, and described tail gas recycle pipe is provided with tail gas induced draft fan.
5. a perchlorate electrolysis process, in electrolyzer, carry out electrolysis by chlorate electrolysis liquid and obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of perchlorate product, it is characterized in that, described electrolysis process comprises: the cyclic electrolysis carrying out electrolytic solution by perchlorate electrolyzer according to claim 1, and control electrolysis temperature and be 60-70 DEG C, obtain the complete liquid of electrolysis.
6. perchlorate electrolysis process according to claim 5, it is characterised in that, concentration when control chlorate electrolysis liquid enters described electrolyzer is 600-680g/L.
7. perchlorate electrolysis process according to claim 5, it is characterised in that, in control electrolysis process, the current density of electrode is 1200-1300A/m2; Current concentration in electrolyzer is 5000-6000A/m3; Bath voltage is 4-5 volt.
8. perchlorate electrolysis process according to claim 6, it is characterised in that, in the complete liquid of described electrolysis, the concentration of oxymuriate is 6-25g/L.
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| CN110129820B (en) * | 2019-06-25 | 2021-01-05 | 山东瑞克环境科技有限公司 | Calcium hypochlorite, calcium chlorate and calcium perchlorate preparation device and method |
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| DE1031288B (en) * | 1956-07-05 | 1958-06-04 | Merck Ag E | Process for the production of perchloric acid by anodic oxidation of chlorine |
| FR2638766B1 (en) * | 1988-11-09 | 1990-12-14 | Atochem | CONTINUOUS PROCESS FOR THE MANUFACTURE OF ALKALINE METAL PERCHLORATE |
| CN1418984A (en) * | 2002-12-18 | 2003-05-21 | 天津化工研究设计院 | External circulation type preparation method for sodium perchlorate |
| CN1243126C (en) * | 2002-12-18 | 2006-02-22 | 吴建国 | Method for preparing perchlorate by electrolysis of chlorate |
| CN202047139U (en) * | 2010-12-03 | 2011-11-23 | 永州九星化工有限公司 | Cathode cage |
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