CN103409770A - Perchlorate electrolyzer and electrolytic process - Google Patents
Perchlorate electrolyzer and electrolytic process Download PDFInfo
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- CN103409770A CN103409770A CN2013103321419A CN201310332141A CN103409770A CN 103409770 A CN103409770 A CN 103409770A CN 2013103321419 A CN2013103321419 A CN 2013103321419A CN 201310332141 A CN201310332141 A CN 201310332141A CN 103409770 A CN103409770 A CN 103409770A
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Abstract
The invention discloses a perchlorate electrolyzer which comprises a plurality of electrolysis baths, wherein the electrolysis baths are divided into at least three groups, the electrolysis baths in each group are connected in series, each group of the electrolysis baths is further connected with a circulation barrel, the circulation barrels are in stepped distribution and connected through overflow pipes, and the overflow pipe of the circulation barrel at a lowest position is connected with an electrolyzed liquid storage tank. An electrolytic process of perchlorate is as follows: chlorate electrolyte solution is used for electrolyzing in an electrolysis bath so as to obtain electrolyzed liquid, and the electrolyzed liquid is used for producing perchlorate products; the electrolytic process comprises that the perchlorate electrolyzer is used for circulated electrolyzing to electrolyte solution, and the electrolyzing temperature is controlled to be 60 to 70 DEG C. The perchlorate electrolyzer and the electrolytic process, provided by the invention, has the advantages that the current efficiency is improved and the chlorate conversion rate is increased.
Description
Technical field
The present invention relates to perchlorate electrolysis tech field, be specifically related to a kind of perchlorate electrolyzer and electrolysis process.
Background technology
The perchlorate electrolysis process, be chlorate electrolysis liquid to be carried out to electrolysis in electrolyzer to obtain the complete liquid of electrolysis, and the complete liquid of electrolysis is for the production of the perchlorate product.In prior art, the perchlorate electrolysis process mainly adopts the mode of single groove continuous electrolysis, and in single groove continuous electrolysis, electrolyzer, the concentration of oxymuriate is lower, and current efficiency is low, the low conversion rate of oxymuriate; And in electrolytic process, will carry out strict control to the processing parameter of each electrolyzer, reference mark is many, and technique controlling difficulty strengthens.
Summary of the invention
The objective of the invention is to overcome above shortcoming, a kind of perchlorate electrolyzer and electrolysis process that can improve the transformation efficiency of current efficiency, oxymuriate is provided.
Technical scheme of the present invention is:
A kind of perchlorate electrolyzer, comprise several electrolyzers, described electrolyzer is divided at least three groups, electrolyzer in every group is connected in series, described every group of electrolyzer also is connected in series a circulation barrel, described circulation barrel is ladder and distributes, and by upflow tube, connects between described circulation barrel, and the upflow tube that is positioned at the described circulation barrel of extreme lower position connects the complete liquid storage tank of electrolysis.
Further, be provided with cathode cage in described electrolyzer, described cathode cage is comprised of some leads, and the center of described every leads is provided with the hard cores bar.
Further, described cathode cage also comprises the first insulation explosion-proof cover, and described the first insulation explosion-proof is set on described cathode cage top, and described leads runs through described the first insulation explosion-proof cover.
Further, described electrolyzer also comprises anode electrode, and described anode electrode is arranged in described cathode cage, and the top jointed anode circle of described anode electrode is provided with annular silver strip between described anode electrode and described anode circle.
Further, on described anode electrode, be set with the second insulation explosion-proof cover, described the second insulation explosion-proof is set on described anode circle below.
Further, described electrolyzer also comprises seal cover board, on described seal cover board, be connected with the tail gas recycle explosion-proof equipment, described tail gas recycle explosion-proof equipment comprises interconnective tail gas recycle pipe and vent gas treatment tower, is provided with the tail gas induced draft fan on described tail gas recycle pipe.
A kind of perchlorate electrolysis process, by chlorate electrolysis liquid, carried out electrolysis and obtain the complete liquid of electrolysis in electrolyzer, the complete liquid of electrolysis is for the production of the perchlorate product, described electrolysis process comprises: the cyclic electrolysis that carries out electrolytic solution with perchlorate electrolyzer claimed in claim 1, and to control electrolysis temperature be 60-70 ℃, obtain the complete liquid of electrolysis.
Concentration when further, control chlorate electrolysis liquid enters described electrolyzer is 600-680g/L.
Further, in the control electrolysis process, the current density of electrode is 1200-1300A/m
2Current concentration in electrolyzer is 5000-6000A/m
3Bath voltage is the 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 have following advantage:
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 several electrolyzers, described electrolyzer is divided at least three groups, electrolyzer in every group is connected in series, described every group of electrolyzer also is connected in series a circulation barrel, described circulation barrel is ladder and distributes, and by upflow tube, connects between described circulation barrel, and the upflow tube that is positioned at the described circulation barrel of extreme lower position connects the complete liquid storage tank of electrolysis.Corresponding electrolysis process comprises: with above-mentioned perchlorate electrolyzer, carry out the cyclic electrolysis of electrolytic solution, and the control electrolysis temperature is 60-70 ℃, obtains the complete liquid of electrolysis.
By electrolyzer being divided into at least three groups, every group of electrolyzer forms an internal recycle, can improve the speed of reaction of electrolytic solution in working cycle, improves current efficiency; Simultaneously, circulation barrel of series connection in every group of electrolyzer, all circulation barrels are ladder and distribute, and realize the step gravity flow by circulation barrel.When electrolyzer forms internal recycle, increase the circulation barrel that ladder distributes, strengthened the circulation of electrolytic solution in whole technique, reduced the concentration of the bubble produced in electrolytic solution, thereby reduced the resistance produced because of bubble concentration, reduced bath voltage, further improved current efficiency.
By increasing the circulation of electrolytic solution in whole technique, except speed of reaction was improved, the completeness of reaction was significantly improved, thereby 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, the whole recycle system can be controlled to target as one, with single groove electrolysis process, compare, reduced the production control point, the index parameter of the whole recycle system is unified to control, guarantee the homogeneity of producing, further improve the speed of electrolytic reaction, reduced bath voltage, and reduced workman's labour intensity.
3, perchlorate electrolyzer provided by the invention, the pole span of electrolyzer inner cathode and anode is even, and good conductivity has further improved current efficiency.Perchlorate electrolyzer provided by the invention, be provided with cathode cage in electrolyzer, cathode cage is comprised of some leads, and the center of every leads is provided with the hard cores bar.At the center of leads, the hard cores bar is set, leads had both been had rigid, flexible and the good electroconductibility that has retained again leads itself, in electrolysis process, leads is not flexible, thereby can guarantee the homogeneity of pole span, and in electrolyzer, distribution of current is even, improve current efficiency, reduced power consumption.
4, perchlorate electrolysis process provided by the invention, be optimized the parameter in electrolysis process, and make the parameters such as concentration of electrolyte, current density, current concentration, bath voltage be in optimum regime, thereby improved 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 the insulation explosion-proof cover, can effectively prevent negative electrode or/and crystalline polamer occurs at the top of anode, thereby reduced the resistance caused because of crystalline polamer, improve current efficiency, simultaneously, can also reduce the probability of the electrolyzer blast caused because of crystallization, improve the operation conditions of electrolyzer.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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 perchlorate electrolyzer Anodic electrode 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 the tail gas recycle explosion-proof equipment;
Reference numeral: 1-electrolyzer, 2-circulation barrel, 3-upflow tube, the complete liquid storage tank of 4-electrolysis, 5-leads, 6-hard cores bar, 7-the first insulation explosion-proof cover, 8-cathode ear, 9-anode electrode, 10-anode circle, 11-annular silver strip, 12-the second insulation explosion-proof cover, the 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
Below will the technical scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
In conjunction with Fig. 1, perchlorate electrolyzer structure is as follows:
A kind of perchlorate electrolyzer, comprise several electrolyzers 1, electrolyzer is divided at least three groups, electrolyzer in every group is connected in series, described every group of electrolyzer also is connected in series a circulation barrel 2, circulation barrel 2 is ladder and distributes, and by upflow tube 3, connects between circulation barrel 2, and the upflow tube that is positioned at the circulation barrel 3 of extreme lower position connects the complete liquid storage tank 4 of electrolysis.A circulation barrel and a plurality of electrolyzer form an internal recycle.As Fig. 1, electrolyzer is divided into to three groups, every group contains three electrolyzers and a circulation barrel.
Corresponding perchlorate electrolysis process is: by concentration, be that 700g/L, pH value are that 6.5 chlorate electrolysis liquid injects in electrolyzer continuously, switch on power, make electrolytic solution electrolysis in electrolyzer, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of the perchlorate product.Electrolysis process is to carry out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 60 ℃, and electrolytic solution flows step by step by circulation barrel, after the last step circulation barrel, flows into the complete liquid storage tank of electrolysis, for the preparation of perchlorate.
In above-mentioned electrolysis process, the control current density is 1150A/m
2Current concentration in electrolyzer is 4800A/m
3Bath voltage is 4 volts, and the time that electrolysis obtains 10 tons of complete liquid of electrolysis is 80h, and in the complete liquid of electrolysis, the concentration of oxymuriate is 70g/L, and the transformation efficiency of oxymuriate is 90%.The power consumption of the complete liquid of electrolysis per ton is 1800kwh.
Perchlorate electrolyzer provided by the invention and electrolysis process, by electrolyzer being divided into at least three groups, every group of electrolyzer forms an internal recycle, can improve the speed of reaction of electrolytic solution in working cycle, improves current efficiency; Simultaneously, circulation barrel of series connection in every group of electrolyzer, all circulation barrels are ladder and distribute, and realize the step gravity flow by circulation barrel.When electrolyzer forms internal recycle, increase the circulation barrel that ladder distributes, strengthened the circulation of electrolytic solution in whole technique, reduced the concentration of the bubble produced in electrolytic solution, thereby reduced the resistance produced because of bubble concentration, reduced bath voltage, further improved current efficiency.
In conjunction with Fig. 1 to Fig. 3, perchlorate electrolyzer structure is as follows:
A kind of perchlorate electrolyzer, comprise several electrolyzers 1, electrolyzer is divided into four groups, electrolyzer in every group is connected in series, described every group of electrolyzer also is connected in series a circulation barrel 2, circulation barrel 2 is ladder and distributes, and by upflow tube 3, connects between circulation barrel 2, and the upflow tube that is positioned at the circulation barrel 3 of extreme lower position connects the complete liquid storage tank 4 of electrolysis.A circulation barrel and a plurality of electrolyzer form an internal recycle.The assembling of electrolyzer can be: 12 electrolyzers are divided into to four groups, and every 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 is done corresponding variation.
In electrolyzer, be provided with cathode cage, as shown in Figure 2 and Figure 3, cathode cage is comprised of some leads 5, and the center of every leads 5 is provided with hard cores bar 6.At the center of leads 5, hard cores bar 6 is set, leads 5 had both been had rigid, not flexible, retained again the flexible and good electroconductibility of leads itself, in electrolysis process, anode electrode is arranged in cathode cage, in the unbending situation of leads, guaranteed the homogeneity of pole span, in electrolyzer, distribution of current is even, improve electrolytic efficiency, reduced power consumption.Hard cores bar 6 is hard metal bar or alloy hard metal bar, make not flexible getting final product of leads, and the hard cores bar is corrosion-resistant.
Cathode cage also comprises cathode ear 8, and cathode ear 8 is the negative electrode conducting plates, and the bus outer with electrolyzer is connected.On the cathode ear, be provided with connecting hole identical with the leads number, connecting hole is evenly distributed on a periphery, and leads passes connecting hole, and is welded and fixed.Some leads that are connected with the cathode ear form annular leads assembly.Wherein, the cathode ear preferably adopts 95% copper casting, and existing good electroconductibility, can reduce resistance, prevent heating, and erosion resistance is stronger than fine copper.
Preferably, cathode cage also comprises that the first insulation explosion-proof cover 7, the first insulation explosion-proof covers 7 are arranged on the cathode cage top, and leads 5 runs through the first insulation explosion-proof cover 7.The cathode cage top arranges the first insulation explosion-proof cover, can prevent that the leads top of cathode cage from the phenomenon of crystallization occurring, thereby reduce the resistance caused because of crystalline polamer, improve current efficiency, simultaneously, can also 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 be used to improving electrolytic efficiency, thereby solved the unmanageable problem of fluorion in traditional perchlorate electrolysis process salt solution recovery, reduce the salt solution cost recovery, and met the requirement that environmental protection is produced.
Corresponding perchlorate electrolysis process is: by concentration, be that 600g/L, pH value are that 6 chlorate electrolysis liquid injects in electrolyzer continuously, switch on power, make electrolytic solution electrolysis in electrolyzer, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of the perchlorate product.Electrolysis process is to carry out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 65 ℃, and electrolytic solution flows step by step by circulation barrel, after the last step circulation barrel, flows into the complete liquid storage tank of electrolysis, for the preparation of perchlorate.
In above-mentioned electrolysis process, the control current density is 1200A/m
2Current concentration in electrolyzer is 5000A/m
3Bath voltage is 4.2 volts, and the time that electrolysis obtains 10 tons of complete liquid of electrolysis is 82h, and in the complete liquid of electrolysis, the concentration of oxymuriate is 18g/L, and the transformation efficiency of oxymuriate is 97%.The power consumption of the complete liquid of electrolysis per ton is 2200kwh.
In conjunction with Fig. 1 to Fig. 5, perchlorate electrolyzer structure is as follows:
A kind of perchlorate electrolyzer, comprise several electrolyzers 1, electrolyzer is divided into five groups, electrolyzer in every group is connected in series, described every group of electrolyzer also is connected in series a circulation barrel 2, circulation barrel 2 is ladder and distributes, and by upflow tube 3, connects between circulation barrel 2, and the upflow tube that is positioned at the circulation barrel 3 of extreme lower position connects the complete liquid storage tank 4 of electrolysis.A circulation barrel and a plurality of electrolyzer form an internal recycle.The assembling of electrolyzer can be: 20 electrolyzers are divided into to five groups, and every 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 is done corresponding variation.
In electrolyzer, be provided with cathode cage, as shown in Figure 2 and Figure 3, cathode cage is comprised of some leads 5, and the center of every leads 5 is provided with hard cores bar 6.At the center of leads 5, hard cores bar 6 is set, leads 5 had both been had rigid, not flexible, retained again the flexible and good electroconductibility of leads itself, in electrolysis process, anode electrode is arranged in cathode cage, in the unbending situation of leads, guaranteed the homogeneity of pole span, in electrolyzer, distribution of current is even, improve electrolytic efficiency, reduced power consumption.
Preferably, cathode cage also comprises that the first insulation explosion-proof cover 7, the first insulation explosion-proof covers 7 are arranged on the cathode cage top, and leads 5 runs through the first insulation explosion-proof cover 7.The cathode cage top arranges the first insulation explosion-proof cover, can prevent that the leads top of cathode cage from the phenomenon of crystallization occurring, thereby reduce the resistance caused because of crystalline polamer, improve current efficiency, simultaneously, can also 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, be provided with annular silver strip 11 between anode electrode 9 and anode circle 10.By between anode electrode and anode circle, annular silver strip being set, make anode electrode, annular silver strip, anode circle form integral body, the anode circle is difficult for loosening, thereby has improved the contact performance of anode circle and anode electrode, and contact is good; Simultaneously, conducting electricity very well of silver strip, even between anode circle and anode electrode, increase the silver strip structure, also can not have influence on the electroconductibility of anode electrode.Because of the anode circle, with anode electrode, contact well, can reduce the resistance of anode electrode, prevent the plate resistance heating, reduce the probability of the electrolyzer blast caused because of heating; Reduce simultaneously the power consumption of perchlorate electrolysis.
Preferably, on anode electrode 9, be set with the second insulation explosion-proof cover 12, the second insulation explosion-proof covers 12 and be arranged on anode circle 10 belows.By the second insulation explosion-proof cover is set on anode electrode, can prevent that anode electrode 9 tops from the phenomenon of crystallization occurring, thereby further reduced the resistance caused because of the anode electrode crystalline polamer, improve current efficiency, simultaneously, can also 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 be used to improving electrolytic efficiency, thereby solved the unmanageable problem of fluorion in traditional perchlorate electrolysis process salt solution recovery, reduce the salt solution cost recovery, and met the requirement that environmental protection is produced.
Corresponding perchlorate electrolysis process is: by concentration, be that 650g/L, pH value are that 6.8 chlorate electrolysis liquid injects in electrolyzer continuously, switch on power, make electrolytic solution electrolysis in electrolyzer, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of the perchlorate product.Electrolysis process is to carry out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 70 ℃, and electrolytic solution flows step by step by circulation barrel, after the last step circulation barrel, flows into the complete liquid storage tank of electrolysis, for the preparation of perchlorate.
In above-mentioned electrolysis process, the control current density is 1250A/m
2Current concentration in electrolyzer is 5500A/m
3Bath voltage is 4.5 volts, and the time that electrolysis obtains 10 tons of complete liquid of electrolysis is 91h, and in the complete liquid of electrolysis, the concentration of oxymuriate is 6g/L, and the transformation efficiency of oxymuriate is 99%.The power consumption of the complete liquid of electrolysis per ton is 2600kwh.
Embodiment 4
In conjunction with Fig. 1 to Fig. 6, the structure of the perchlorate electrolyzer of the present embodiment, using the electrolyzer structure of embodiment 3 as basis, and electrolyzer is divided into to six groups, and 30 electrolyzers of take are example, and every group is comprised of five electrolyzers and a circulation barrel.
In addition, as shown in Figure 6, electrolyzer 1 also comprises seal cover board 13, on 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, on tail gas recycle pipe 15, is provided with tail gas induced draft fan 16.On the seal cover board 13 of electrolyzer, connect 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 the tail gas clean-up processing.By the tail gas recycle explosion-proof equipment, the mixed gas in electrolyzer is drawn continuously, makes the interior density of hydrogen of electrolyzer lower than the Lower Explosive Limit value, from source, has stopped to produce because density of hydrogen is too high the possibility of blast.
Corresponding perchlorate electrolysis process is: by concentration, be that 680g/L, pH value are that 7 chlorate electrolysis liquid injects in electrolyzer continuously, switch on power, make electrolytic solution electrolysis in electrolyzer, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of the perchlorate product.Electrolysis process is to carry out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 68 ℃, and electrolytic solution flows step by step by circulation barrel, after the last step circulation barrel, flows into the complete liquid storage tank of electrolysis, for the preparation of perchlorate.
In above-mentioned electrolysis process, the control current density is 1300A/m
2Current concentration in electrolyzer is 6000A/m
3Bath voltage is 5 volts, and the time that electrolysis obtains 10 tons of complete liquid of electrolysis is 72h, and in the complete liquid of electrolysis, the concentration of oxymuriate is 13g/L, and the transformation efficiency of oxymuriate is 98%.The power consumption of the complete liquid of electrolysis per ton is 2400kwh.
Embodiment 5
In conjunction with Fig. 1 to Fig. 6, the structure of the perchlorate electrolyzer of the present embodiment, using the electrolyzer structure of embodiment 4 as basis, and electrolyzer is divided into to five groups, and 40 electrolyzers of take are example, and every group is comprised of eight electrolyzers and a circulation barrel.
Corresponding perchlorate electrolysis process is: by concentration, be that 625g/L, pH value are that 6.3 chlorate electrolysis liquid injects in electrolyzer continuously, switch on power, make electrolytic solution electrolysis in electrolyzer, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of the perchlorate product.Electrolysis process is to carry out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 62 ℃, and electrolytic solution flows step by step by circulation barrel, after the last step circulation barrel, flows into the complete liquid storage tank of electrolysis, for the preparation of perchlorate.
In above-mentioned electrolysis process, the control current density is 1280A/m
2Current concentration in electrolyzer is 5600A/m
3Bath voltage is 4.3 volts, and the time that electrolysis obtains 10 tons of complete liquid of electrolysis is 77h, and in the complete liquid of electrolysis, the concentration of oxymuriate is 25g/L, and the transformation efficiency of oxymuriate is 96%.The power consumption of the complete liquid of electrolysis per ton is 2300kwh.
In conjunction with Fig. 1 to Fig. 6, the structure of the perchlorate electrolyzer of the present embodiment, using the electrolyzer structure of embodiment 4 as basis, and electrolyzer is divided into to five groups, and 25 electrolyzers of take are example, and every group is connected in series and is formed by five electrolyzers and a circulation barrel.
Corresponding perchlorate electrolysis process is: by concentration, be that 660g/L, pH value are that 6.7 chlorate electrolysis liquid injects in electrolyzer continuously, switch on power, make electrolytic solution electrolysis in electrolyzer, obtain the complete liquid of electrolysis, the complete liquid of electrolysis is for the production of the perchlorate product.Electrolysis process is to carry out in above-mentioned perchlorate electrolyzer, and to control electrolysis temperature be 64 ℃, and electrolytic solution flows step by step by circulation barrel, after the last step circulation barrel, flows into the complete liquid storage tank of electrolysis, for the preparation of perchlorate.
In above-mentioned electrolysis process, the control current density is 1260A/m
2Current concentration in electrolyzer is 5400A/m
3Bath voltage is 4.2 volts, and the time that electrolysis obtains 10 tons of complete liquid of electrolysis is 86h, and in the complete liquid of electrolysis, the concentration of oxymuriate is 13g/L, and the transformation efficiency of oxymuriate is 98%.The power consumption of the complete liquid of electrolysis per ton is 2250kwh.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing, be equal to replacement etc., within all should being included in protection scope of the present invention in protection scope of the present invention.
Claims (10)
1. perchlorate electrolyzer, comprise several electrolyzers, it is characterized in that, described electrolyzer is divided at least three groups, electrolyzer in every group is connected in series, and described every group of electrolyzer also is connected in series a circulation barrel, and described circulation barrel is ladder and distributes, between described circulation barrel, connect by upflow tube, the upflow tube that is positioned at the described circulation barrel of extreme lower position connects the complete liquid storage tank of electrolysis.
2. perchlorate electrolyzer according to claim 1, is characterized in that, is provided with cathode cage in described electrolyzer, and described cathode cage is comprised of some leads, and the center of described every leads is provided with the hard cores bar.
3. perchlorate electrolyzer according to claim 2, is characterized in that, described cathode cage also comprises the first insulation explosion-proof cover, and described the first insulation explosion-proof is set on described cathode cage top, and described leads runs through described the first insulation explosion-proof cover.
4. perchlorate electrolyzer according to claim 2, 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, be provided with annular silver strip between described anode electrode and described anode circle.
5. perchlorate electrolyzer according to claim 4, is characterized in that, on described anode electrode, is set with the second insulation explosion-proof cover, and described the second insulation explosion-proof is set on described anode circle below.
6. according to the described perchlorate electrolyzer of any one in claim 1-5, it is characterized in that, described electrolyzer also comprises seal cover board, on described seal cover board, be connected with the tail gas recycle explosion-proof equipment, described tail gas recycle explosion-proof equipment comprises interconnective tail gas recycle pipe and vent gas treatment tower, is provided with the tail gas induced draft fan on described tail gas recycle pipe.
7. perchlorate electrolysis process, by chlorate electrolysis liquid, carried out electrolysis and obtain the complete liquid of electrolysis in electrolyzer, the complete liquid of electrolysis is for the production of the perchlorate product, it is characterized in that, described electrolysis process comprises: the cyclic electrolysis that carries out electrolytic solution with perchlorate electrolyzer claimed in claim 1, and to control electrolysis temperature be 60-70 ℃, obtain the complete liquid of electrolysis.
8. perchlorate electrolysis process according to claim 7, is characterized in that, the concentration when control chlorate electrolysis liquid enters described electrolyzer is 600-680g/L.
9. perchlorate electrolysis process according to claim 7, is characterized in that, the current density of controlling electrode in electrolysis process is 1200-1300A/m
2Current concentration in electrolyzer is 5000-6000A/m
3Bath voltage is the 4-5 volt.
10. perchlorate electrolysis process according to claim 8, is characterized in that, in the complete liquid of described electrolysis, the concentration of oxymuriate is 6-25g/L.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106148994A (en) * | 2016-08-29 | 2016-11-23 | 潍坊和创环保设备有限公司 | Sodium hypochlorite produces and uses generator main frame |
| CN110129820A (en) * | 2019-06-25 | 2019-08-16 | 山东瑞克环境科技有限公司 | Calcium hypochlorite, calcium chlorate, Calcium perchlorate preparation facilities and method |
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| CN1508291A (en) * | 2002-12-18 | 2004-06-30 | 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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| CN106148994A (en) * | 2016-08-29 | 2016-11-23 | 潍坊和创环保设备有限公司 | Sodium hypochlorite produces and uses generator main frame |
| CN110129820A (en) * | 2019-06-25 | 2019-08-16 | 山东瑞克环境科技有限公司 | Calcium hypochlorite, calcium chlorate, Calcium perchlorate preparation facilities and method |
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