CN108103527A - It is used to prepare the electrolysis unit of high pure metal sodium - Google Patents
It is used to prepare the electrolysis unit of high pure metal sodium Download PDFInfo
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- CN108103527A CN108103527A CN201711462819.XA CN201711462819A CN108103527A CN 108103527 A CN108103527 A CN 108103527A CN 201711462819 A CN201711462819 A CN 201711462819A CN 108103527 A CN108103527 A CN 108103527A
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- sodium
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- electrolytic cell
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- filtering tank
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- 239000011734 sodium Substances 0.000 title claims abstract description 194
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 192
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 192
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 53
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000007704 transition Effects 0.000 abstract description 16
- 235000015424 sodium Nutrition 0.000 description 153
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000007784 solid electrolyte Substances 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000002228 NASICON Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229910006587 β-Al2O3 Inorganic materials 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910003249 Na3Zr2Si2PO12 Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- RLAHWVDQYNDAGG-UHFFFAOYSA-N Methanetriol Chemical compound OC(O)O RLAHWVDQYNDAGG-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- MRMOZBOQVYRSEM-UHFFFAOYSA-N tetraethyllead Chemical compound CC[Pb](CC)(CC)CC MRMOZBOQVYRSEM-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/02—Electrolytic production, recovery or refining of metals by electrolysis of melts of alkali or alkaline earth metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a kind of electrolysis units for being used to prepare high pure metal sodium; including protection gas source of the gas, thick sodium tank, electrolytic cell and filtering tank; filtering tank is arranged between thick sodium tank and electrolytic cell; the bottom of thick sodium tank is connected by pipeline with filtering tank, and the first shut-off valve is set on the pipeline that thick sodium tank is connected with filtering tank；The bottom of the filtering tank is connected by pipeline with electrolytic cell, and the second shut-off valve is set on the pipeline that filtering tank is connected with electrolytic cell；The filtering tank is equipped with sodium liquid diversion pipe, and sodium liquid diversion pipe one end is connected with filtering tank, and the other end is connected with thick sodium tank.The present invention adds in the amount of the thick sodium of electrolytic cell using transition container and valve control every time, can prevent a large amount of thick sodium from pouring in electrolytic cell and causing contingency, the safety coefficient of device is high.
Description
Technical field
The present invention relates to a kind of electrolysis units, are filled more specifically to a kind of electrolysis for being used to prepare high pure metal sodium
It puts, belongs to the solid electrolyte electrolysis engineering device technique field for preparing metallic sodium.
Background technology
Metallic sodium is material indispensable in a kind of development of the national economy, in numerous areas such as industry, the energy and national defence
Play important value and effect.In terms of metallurgy, metallic sodium is used to smelt some noble metals such as titanium, tantalum and niobium because of its strong reducing property
Deng；In field of light industry, metallic sodium selects the intermediate of indigo pure powder with ammonia reaction generation Sodamide as dye industry system；It is led in medicine
Domain, metallic sodium is for producing sodium borohydride, as medicine intermediates such as orthoformic acid front three vinegar, formic acid triethyls；In petrochemical field,
The alloy of metallic sodium and lead enhances the antiknock ability of gasoline for producing lead tetraethide；In national defence, metallic sodium is closed with oxidation
The sodium peroxide of generation is for the oxygenate as submarine.
A series of environment and resource problem brought due to fossil energy energy consumption, in recent years wind energy, solar energy and
A batch new energy technology such as nuclear energy largely rises, to substitute seriously polluted traditional thermal power generation.Energy storage as wind energy and
Grid-connected irreplaceable its importance of a ring of the intermittent energies such as solar energy does not say and language that wherein sode cell energy storage technology is current
Business application is one the most successful in many static chemical energy storage technologies, as energy storage market will to the growth of sode cell demand
Pull the firm need to high pure metal sodium.Referring to document：Tang Guang Shengs et al. high temperature and middle low temperature sode cell Recent Progresses In The Development east
Electrical comment, total 122nd phase of volume 31 in 2017.High pure metal sodium also has a particularly significant application in nuclear energy field, as
The thermal conducting agent of the cold fast neutron reactor of sodium, with starting for the projects such as China's forth generation nuclear power demonstration project, the whole world is to High Purity Gold
The demand for belonging to sodium also will be more vigorous.
The method of production high pure metal sodium is cold using vacuum distillation method, filtering sedimentation mostly using industrial sodium as raw material at present
Trap combined method and solid electrolyte electrolysis etc..Wherein, metallic sodium purity highest, the technique mistake of solid electrolyte electrolysis production
Journey is the simplest.A kind of notification number is disclosed within State Intellectual Property Office 2013.2.27 days as CN202755066U, entitled " one
Kind for sodium of purifying metals fusion electrolysis device " invention, the device be adopted as solid electrolytic method carry out metallic sodium purification
Work, it is difficult to realize controllable feed supplement and continuous operations, be not suitable as the mass production device of high pure metal sodium.
The content of the invention
The defects of in order to overcome the prior art, the present invention is intended to provide a kind of electrolysis dress for being used to prepare high pure metal sodium
It puts, solves the problems, such as that prepare high pure metal sodium using solid electrolyte method faces in continuous production, makes metal in production process
The supplement of sodium raw materials is safe and controllable, meets volume production requirement of the solid electrolyte electrolysis in terms of high pure metal sodium preparation.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of electrolysis unit for being used to prepare high pure metal sodium, including protection gas source of the gas, thick sodium tank and electrolytic cell, the thick sodium tank
With being both provided with heating unit on electrolytic cell, the protection gas source of the gas is connected by pipeline with thick sodium tank, electrolytic cell respectively, special
Sign is：Further include filtering tank, the filtering tank is arranged between thick sodium tank and electrolytic cell, the bottom of thick sodium tank by pipeline with
Filtering tank is connected, and the first shut-off valve is set on the pipeline that thick sodium tank is connected with filtering tank；The bottom of the filtering tank passes through pipeline
It is connected with electrolytic cell, the second shut-off valve is set on the pipeline that filtering tank is connected with electrolytic cell；The filtering tank is led equipped with sodium liquid
Flow tube, sodium liquid diversion pipe one end are connected with filtering tank, and the other end is connected with thick sodium tank.
The sodium liquid diversion pipe is connected on the pipeline that protection gas source of the gas is connected with thick sodium tank, is equipped on sodium liquid diversion pipe
Instrument for Pressure.
Thermometer is equipped on the thick sodium tank, electrolytic cell and filtering tank.
The volume of the filtering tank is less than the volume of thick sodium tank, and the top level elevation of filtering tank is not higher than in thick sodium tank
Minimum sodium liquid level.
Multiple electrolysis cells are equipped in the electrolytic cell, be equipped on each electrolysis cells smart sodium efferent duct with it is lazy
Property gas inlet pipe, the anode of electrolysis power turns on the thick sodium in electrolytic cell, cathode and the electrolysis cells cathode of electrolysis power
Component connects.
The thick sodium tank on electrolytic cell with being respectively equipped with sodium liquid measuring instrument.
The thick sodium tank on electrolytic cell with being respectively equipped with safety valve.
The protection gas source of the gas is inert gas or nitrogen.
Thick sodium tank, that is, thick sodium container, around set heating unit（That is heat tracing）, its upper part sets a valve and enters as thick sodium
Mouthful, the thick sodium is less than the raw material sodium of target product for purity, and top sets thermometer instrument, safety valve, liquid level or weighing instrument
Table, both the liquid level instrument and weighing instrument can only select first, for thick sodium in detection container quality, according to weighing instrument
Table is then considered as or eliminates the influence for the band that container is connected with peripheral components.
Filtering tank, that is, transition container, around set heat tracing, volume is less than the volume of thick sodium container, top level elevation
Not higher than the minimum sodium liquid level of thick sodium container, top, which is set, claims thermometer instrument and sodium liquid diversion pipe, the sodium liquid diversion pipe with
Tracheae is connected, surrounding heat tracing, and sodium liquid heat conducting pipe level height is not less than the highest sodium liquid level of thick sodium container.
Electrolytic cell, around set heat tracing, top sets safety valve, thermometer instrument, liquid level or weighing instrument and vacuum pump
System and several electrolysis powers and electrolysis cells.
Electrolysis cells, bottom set solid electrolyte diaphragm pipe, and top sets air pipe interface, cathode assembly, smart sodium outlet
And Assembly interface, air pipe interface are connected with external high pure nitrogen or inert gas circuit pipe, cathode assembly and electrolysis power anode
It is connected and stretches to inside diaphragm tube, smart sodium outlet is connected with external smart sodium collection device, Assembly interface and electrolysis groove top
Portion is connected and the electric insulation between electrolytic cell.
The solid electrolyte diaphragm pipe, for the structure that one end open one end is remained silent, material is Na- β-Al2O3Or
NASICON materials, the Na- β-Al2O3That is Beta-Al2O3In be this field well known materials, the NASICON for sodium surpass from
The super body of son, is not limited to Na3Zr2Si2PO12、Na1+xSixZr2P3-xO12（Between x is 1.6 to 2.4）And Mg, Fe, Y and La etc. mix
The NASICON materials of miscellaneous modification.
The present invention has the following advantages：
1st, the present invention includes filtering tank, and the filtering tank is arranged between thick sodium tank and electrolytic cell, and the bottom of thick sodium tank passes through pipe
Road is connected with filtering tank, and the bottom of the filtering tank is connected by pipeline with electrolytic cell；The filtering tank is equipped with sodium liquid water conservancy diversion
Pipe, sodium liquid diversion pipe one end are connected with filtering tank, and the other end is connected with thick sodium tank.Added every time using transition container and valve control
Enter the amount of the thick sodium of electrolytic cell, can prevent a large amount of thick sodium from pouring in electrolytic cell and causing contingency, the safety coefficient of device is high.
2nd, sodium liquid diversion pipe of the present invention is connected on the pipeline that protection gas source of the gas is connected with thick sodium tank, is pacified on sodium liquid diversion pipe
Equipped with Instrument for Pressure.Sodium liquid conveyance conduit in the method and transition container of a thick gas circuit shared between sodium container and transition container
Design, it is ensured that sodium liquid is smoothly transported from thick sodium container to transition container.
3rd, the present invention transporting by air pressure adjustment and valve double control sodium liquid, further enhances the safety of device
Property.
4th, the present invention can not interrupt electrorefining operation by the connection cooperation and the application of each instrument of each component
Under the premise of, realize that thick sodium is replenished in time.
5th, the present invention uses multiple electrolysis cells, realizes the continuous volume production of high pure metal sodium.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
It is marked in figure：1st, gas source of the gas is protected；2nd, thick sodium tank；3rd, electrolytic cell；4th, filtering tank；5th, heating unit；6th, vacuum pump
System；7th, electrolysis cells；8th, electrolysis power；9th, sodium liquid diversion pipe；10th, thermometer；11st, sodium liquid measuring instrument；12nd, Instrument for Pressure；13、
Smart sodium efferent duct；14th, safety valve；15th, the first shut-off valve；16th, the second shut-off valve；17th, pressure reducing valve；18th, valve；19th, indifferent gas
Body input pipe.
Specific embodiment
The present invention is further elaborated below in conjunction with the accompanying drawings, but the present invention is not limited to following embodiment, the methods
It is conventional method unless otherwise instructed, the material can obtain unless otherwise instructed from open commercial sources.
Embodiment 1
As shown in Figure 1, a kind of electrolysis unit for being used to prepare high pure metal sodium, including protecting gas source of the gas 1（It is lazy to protect gas source of the gas
Property gas or nitrogen）, thick sodium tank 2 and electrolytic cell 3, thick sodium tank 2 be thick sodium container, its upper part sets a valve and enters as thick sodium
Mouthful, the thick sodium is less than the raw material sodium of target product for purity.Thick sodium tank 2 adds with being both provided with heating unit 5 on electrolytic cell 3
Thermal 5 is used to heat master to the liquid sodium in it, prevents its curing；Protect gas source of the gas 1 by pipeline respectively with thick sodium tank 2, electricity
Solution slot 3 connects.If the pipeline that no all metallic sodiums of specified otherwise flow through has heat tracing to prevent metallic sodium from curing in pipeline.Electricity
Vacuum pump system 6 is further included in solution device, and when electrolysis starts vacuum pump system 6 to device first（I.e. thick sodium tank, electrolytic cell）
Pumping, closing vacuum system is re-filled with above-mentioned nitrogen or argon gas after reaching setting vacuum degree.
Filtering tank 4 is further included, the filtering tank sets 4 between thick sodium tank 2 and electrolytic cell 3, and the bottom of thick sodium tank 2 passes through
Pipeline is connected with filtering tank 4, and the first shut-off valve 15 is set on the pipeline that thick sodium tank is connected with filtering tank；The bottom of filtering tank 4 leads to
Piping is connected with electrolytic cell 3, and the second shut-off valve 16 is set on the pipeline that filtering tank 4 is connected with electrolytic cell 3；On filtering tank 4
Equipped with sodium liquid diversion pipe 9,9 one end of sodium liquid diversion pipe is connected with filtering tank 4, and the other end is connected with the top of thick sodium tank 2.So as to
Make thick sodium tank 2 consistent with the internal pressure of filtering tank 4, facilitate and enter the thick sodium hydraulic pressure in filtering tank 4 in electrolytic cell 3.
Further, sodium liquid diversion pipe 9 is connected on the pipeline that protection gas source of the gas 1 is connected with thick sodium tank 2, sodium liquid diversion pipe
Instrument for Pressure 12 is installed on 9（Instrument for Pressure 12 can be pressure transmitter）.A gas circuit is slightly shared between sodium container and transition container
Method and transition container on sodium liquid conveyance conduit design, it is ensured that sodium liquid is smoothly defeated to transition container from thick sodium container
Fortune.Thick sodium tank 2, be equipped with thermometer on electrolytic cell 3 and filtering tank 4.The thick sodium tank 2 on electrolytic cell 3 with being respectively equipped with sodium
Liquid measuring instrument 11（Sodium liquid measuring instrument 11 is liquid level gauge or weighing instrument）, for the quality of thick sodium in detection container, according to title
Weight instrument is then considered as or eliminates the influence for the band that container is connected with peripheral components.The thick sodium tank 2 with setting respectively on electrolytic cell 3
There is safety valve.
In above-mentioned, the volume of filtering tank 4 is less than the volume of thick sodium tank 2, and the top level elevation of filtering tank 4 is not higher than thick sodium
Minimum sodium liquid level in tank 2.
Multiple electrolysis cells 7 are equipped in the electrolytic cell 3, be equipped on each electrolysis cells 7 smart sodium efferent duct 13 with it is lazy
Property gas inlet pipe 19, smart sodium efferent duct 13 is connected with external smart sodium collection device, and inert gas input pipe 19 and outside are high-purity
Nitrogen or inert gas circuit pipe are connected, and the anode of electrolysis power 8 is turned on the thick sodium in electrolytic cell, the cathode of electrolysis power and electrolysis
Unit cathodes component connects.Electrolysis cells, bottom set solid electrolyte diaphragm pipe, top set air pipe interface, cathode assembly,
Smart sodium outlet and Assembly interface, electric insulation between cathode assembly and electrolytic cell.Solid electrolyte diaphragm pipe is one end open one
The structure remained silent is held, material is Na- β-Al2O3Or NASICON materials, the Na- β-Al2O3That is Beta-Al2O3In be ability
The well known materials in domain, the NASICON surpass body for sodium super-ionic, are not limited to Na3Zr2Si2PO12、Na1+xSixZr2P3-xO12（x
Between 1.6 to 2.4）And the NASICON materials of the doping vario-properties such as Mg, Fe, Y and La.
Operation principle：1）When device initialization, device is evacuated using vacuum pump system is started, reaches setting vacuum
Vacuum system is closed after degree and is re-filled with above-mentioned nitrogen or argon gas, thick sodium is injected into thick sodium tank by valve again afterwards, and is passed through
Valve operation and liquid level or weighing instrument detection make the thick sodium in thick sodium tank and electrolytic cell reach the quality specified；2）When normal
Electrorefining work when, open electrolysis power, because use solid electrolyte with sodium ion-conductive selectivity can prevent it is miscellaneous
Matter ion transport, sodium ion are further reduced into metallic sodium in cathode, realize the purpose of metallic sodium purification.With electrolysis into
Thick sodium gradually decreases in row electrolytic cell, and the smart sodium of output is blowed to outside from electrolysis cells by high-purity argon gas or nitrogen and received
Collection, when the thick sodium decrement in electrolytic cell reaches setting value（1 times of thick sodium quality generally in transition tank）, close first section
Only valve 15 opens the second shut-off valve 16, and by the draught head between transition tank and electrolytic cell, thick sodium in transition tank is transported to electrolytic cell,
It is ensured that the sodium liquid temperature degree in transition tank and the sodium liquid temperature degree in electrolytic cell are as far as possible consistent before input, that is, maintain electrolysis cells
Operating temperature（Generally 320 DEG C or so）, prevent during defeated sodium that the temperature variation of sodium liquid is excessive in electrolytic cell and heat caused to electrolysis cells
Impact.When thick sodium drains in transition tank, the second shut-off valve 16 of closing opens the first shut-off valve 15, makes in transition tank full of thick sodium
After turn off the first shut-off valve 15.It beats full of thick sodium in transition tank, by the way that tank gage is claimed to judge thick sodium quality in electrolytic cell.When thick
When thick sodium amount is less than setting value in sodium tank, external thick sodium inputs thick sodium tank by valve, keeps the electrolysis unit continuously-running.
Thick sodium is positively retained at relatively low temperature in thick sodium tank（Generally 150 DEG C or so）, can so reduce the entirety of electrolysis unit
Power consumption.
Claims (8)
1. the electrolysis unit of high pure metal sodium is used to prepare, including protection gas source of the gas (1), thick sodium tank (2) and electrolytic cell (3), institute
State and heating unit (5) be both provided on thick sodium tank (2) and electrolytic cell (3), the protection gas source of the gas (1) by pipeline respectively with slightly
Sodium tank (2), electrolytic cell (3) connection, it is characterised in that：Filtering tank (4) is further included, the filtering tank (4) is arranged on thick sodium tank (2)
Between electrolytic cell (3), the bottom of thick sodium tank (2) is connected by pipeline with filtering tank (4), thick sodium tank (2) and filtering tank (4) phase
The first shut-off valve (15) is set on pipeline even；The bottom of the filtering tank (4) is connected by pipeline with electrolytic cell (3), filtering
Second shut-off valve (16) is set on the pipeline that tank (4) is connected with electrolytic cell (3)；The filtering tank (4) is equipped with sodium liquid diversion pipe
(9), sodium liquid diversion pipe (9) one end is connected with filtering tank (4), and the other end is connected with thick sodium tank (2).
2. the electrolysis unit according to claim 1 for being used to prepare high pure metal sodium, it is characterised in that：The sodium liquid water conservancy diversion
Pipe (9) is connected on the pipeline that protection gas source of the gas (1) is connected with thick sodium tank (2), and Instrument for Pressure is equipped on sodium liquid diversion pipe (9)
(12)。
3. the electrolysis unit according to claim 1 for being used to prepare high pure metal sodium, it is characterised in that：The thick sodium tank
(2), electrolytic cell (3) on filtering tank (4) with being equipped with thermometer (10).
4. the electrolysis unit according to claim 1 for being used to prepare high pure metal sodium, it is characterised in that：The filtering tank
(4) volume is less than the volume of thick sodium tank (2), and the top level elevation of filtering tank (4) is not higher than the minimum sodium in thick sodium tank (2)
Liquid level.
5. the electrolysis unit according to claim 1 for being used to prepare high pure metal sodium, it is characterised in that：The electrolytic cell
(3) multiple electrolysis cells (7) are equipped in, smart sodium efferent duct (13) and indifferent gas are equipped on each electrolysis cells (7)
Body input pipe (19), the anode of electrolysis power (8) are turned on the thick sodium in electrolytic cell (3), the cathode of electrolysis power (8) and electrolysis
Unit (7) cathode assembly connects.
6. the electrolysis unit according to claim 1 for being used to prepare high pure metal sodium, it is characterised in that：The thick sodium tank
(2) with being respectively equipped with sodium liquid measuring instrument (11) on electrolytic cell (3).
7. the electrolysis unit according to claim 1 for being used to prepare high pure metal sodium, it is characterised in that：The thick sodium tank
(2) with being respectively equipped with safety valve (14) on electrolytic cell (3).
8. the electrolysis unit according to claim 1 for being used to prepare high pure metal sodium, it is characterised in that：The protection gas gas
Source (1) is inert gas or nitrogen.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202682925U (en) * | 2012-08-08 | 2013-01-23 | 张蓓 | Metallic sodium high-purity purifying device |
| CN202755066U (en) * | 2012-09-05 | 2013-02-27 | 中国东方电气集团有限公司 | Melting electrolysis device for purifying sodium metal |
| CN107331425A (en) * | 2017-07-07 | 2017-11-07 | 西安交通大学 | A kind of fused mass and the pilot system and method for liquid metal repercussion study |
| CN207760432U (en) * | 2017-12-28 | 2018-08-24 | 中国东方电气集团有限公司 | A kind of electrolysis unit preparing high pure metal sodium |
-
2017
- 2017-12-28 CN CN201711462819.XA patent/CN108103527A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202682925U (en) * | 2012-08-08 | 2013-01-23 | 张蓓 | Metallic sodium high-purity purifying device |
| CN202755066U (en) * | 2012-09-05 | 2013-02-27 | 中国东方电气集团有限公司 | Melting electrolysis device for purifying sodium metal |
| CN107331425A (en) * | 2017-07-07 | 2017-11-07 | 西安交通大学 | A kind of fused mass and the pilot system and method for liquid metal repercussion study |
| CN207760432U (en) * | 2017-12-28 | 2018-08-24 | 中国东方电气集团有限公司 | A kind of electrolysis unit preparing high pure metal sodium |
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