CN203700542U - Device for purifying metal sodium through fusion electrolysis - Google Patents

Device for purifying metal sodium through fusion electrolysis Download PDF

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Publication number
CN203700542U
CN203700542U CN201420060473.6U CN201420060473U CN203700542U CN 203700542 U CN203700542 U CN 203700542U CN 201420060473 U CN201420060473 U CN 201420060473U CN 203700542 U CN203700542 U CN 203700542U
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China
Prior art keywords
sodium
catholyte
electrolyzer
fusion electrolysis
anodolyte
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Expired - Lifetime
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CN201420060473.6U
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Chinese (zh)
Inventor
江瑜
袁小武
林久
阴宛珊
王荣贵
张全生
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Dongfang Electric Co ltd
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Dongfang Electric Corp
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Abstract

The utility model relates to a device for purifying metal sodium through fusion electrolysis and belongs to the technical field of purifying devices of metal sodium through electrolysis. The device comprises an electrolytic bath, a heating device, a Na-beta-Al2O3 diaphragm tube, a cathode and an anode, wherein the sodium outlet of the device is positioned at the external part of the electrolytic bath; the cathode product high-purity sodium can be discharged and collected conveniently under the effect of the gravity during the electrolytic process, that the high-purity sodium can be discharged only by feeding shielding gas in a pressurization state is not required, the efficiency is improved, and the cost is reduced.

Description

The purify metals device of sodium of a kind of fusion electrolysis
Technical field
The utility model relates to a kind of fusion electrolysis device, and more particularly, the utility model relates to the purify metals device of sodium of a kind of fusion electrolysis, belongs to the refining device technique field of sodium Metal 99.5.
Background technology
Sodium Metal 99.5 can be used for sodium compound and the doped fuel additive of production petroleum sweetening agent, oxygenant, SYNTHETIC OPTICAL WHITNER, dyestuff, agricultural chemicals, medicine intermediate, catalyzer, spices, organic compound production use, also for the Metal Production such as potassium, titanium, zirconium, niobium, vanadium, tantalum, oxygen generating agent Na processed 2o 2and potassium processed, sodium alloy; Along with the technical progress of association area and the needs in market, start to be applied to the aspects such as nuclear reactor heat conduction, sode cell, electric light source in recent years.
The production technology of preparing sodium Metal 99.5 mainly contains caustic soda fusion electrolysis method, salt fusion electrolysis method and electrolytic sodium amalgamation process etc.The thick sodium impurity prepared by aforesaid method is more, purity is not high, and need purify could be for relevant industries.Use at present more purifying plant to mainly contain filtration unit and vacuum distillation plant.Use filtration unit can remove the mechanical impurity in thick sodium, obtain the Industrial Metal sodium of purity >=99.5%; Utilize vacuum distillation plant to purify and can obtain the high pure sodium of purity >=99.9% sodium Metal 99.5.The shortcoming of above-mentioned two kinds of devices is: the purification purity of filtration unit is not high, cannot meet the purification requirement of high pure sodium; Vacuum distillation plant purification purity is high, can meet the requirement of high pure sodium, but its complex structure, technical process complexity.
It is CN202755066U that State Intellectual Property Office discloses a notification number in 2013.2.27, name is called the utility model patent of " a kind of fusion electrolysis device for the sodium of purifying metals ", this patent relates to a kind of fusion electrolysis device for the sodium of purifying metals, and belongs to the refining device technique field of sodium Metal 99.5.Comprise heating unit, electrolyzer, anode, the negative electrode of anodolyte is housed and the diaphragm tube of catholyte is housed, described electrolyzer is arranged in heating unit, described diaphragm tube and anode are in electrolyzer is inserted at electrolyzer top and partial insertion sodium Metal 99.5, expose outside electrolyzer at described diaphragm tube and the top of anode, and described diaphragm tube is Na-β-Al 2o 3diaphragm tube, described negative electrode inserts diaphragm tube and partial insertion high pure sodium from the top of diaphragm tube, expose outside diaphragm tube at the top of negative electrode, the top of diaphragm tube is also provided with the row's sodium pipe for discharging high pure sodium, this apparatus structure is simple, technical process is simple, when purification, almost without side reaction, reaction efficiency approaches 100%; The sodium Metal 99.5 purity of producing higher, purity is more than 99.9%.
Its row's sodium outlet of the fusion electrolysis device of the above-mentioned sodium of purifying metals is positioned at diaphragm tube top, the discharge of cathode product high pure sodium, collection inconvenience; Need pass into shielding gas and could discharge high pure sodium under pressurized state.
Utility model content
The utility model is intended to solve the problem that goes out sodium inconvenience in the fusion electrolysis device of the existing sodium of purifying metals, and the device that provides a kind of fusion electrolysis to purify metals sodium, reaches the object of conveniently discharging and collecting cathode product high pure sodium.
To achieve these goals, concrete technical scheme of the present utility model is as follows:
The purify metals device of sodium of fusion electrolysis, comprises electrolyzer, heating unit, Na-β-Al 2o 3diaphragm pipe, negative electrode and anode, is characterized in that: described Na-β-Al 2o 3diaphragm pipe is arranged in described electrolyzer, described Na-β-Al 2o 3diaphragm pipe inside is anodolyte chamber, described Na-β-Al 2o 3space between diaphragm pipe and electrolyzer is catholyte chamber; Described Na-β-Al 2o 3diaphragm pipe top is by pipeline communication anodolyte entrance, and described anode is from Na-β-Al 2o 3insert in anodolyte chamber at diaphragm pipe top; Described catholyte chamber is by pipeline communication catholyte entrance, and described negative electrode inserts in catholyte chamber from electrolyzer top; Described catholyte chamber goes out sodium mouth by pipeline communication, and the described sodium mouth that goes out connects high pure sodium collector.
Anodolyte entrance described in the utility model is to Na-β-Al 2o 3on the pipeline of diaphragm pipe, be disposed with anodolyte pre-heaters and anodolyte inlet valve.
Catholyte entrance described in the utility model is disposed with catholyte pre-heaters and catholyte inlet valve to the pipeline in catholyte chamber.
Catholyte described in the utility model chamber, by pipeline communication gas atmosphere inlet, is provided with gas atmosphere inlet valve on pipeline.
Catholyte entrance described in the utility model and gas atmosphere inlet are arranged on the top of electrolyzer, the described middle part that goes out sodium mouth and be arranged on electrolyzer.
Described in the utility modelly go out to be provided with out sodium mouth valve and interface between sodium mouth and high pure sodium collector.
The purify metals device of sodium of fusion electrolysis described in the utility model also comprises shielding gas baroceptor; described shielding gas baroceptor inserts in catholyte chamber from described electrolyzer top, is positioned at the pipeline opening place that catholyte chamber is communicated with gas atmosphere inlet.
The purify metals device of sodium of fusion electrolysis described in the utility model also comprises temperature sensor, and described temperature sensor inserts in catholyte chamber from described electrolyzer top.
Heating unit described in the utility model is arranged on the outer pars intramuralis of electrolyzer.
Na-β-Al in the utility model 2o 3for the well known materials of this area, i.e. Beta-Al 2o 3, Na-β-Al 2o 3diaphragm tube is called again β pipe.Beta-Al 2o 3be the general name of a large class aluminate, its general formula is M 2o xal 2o 3, M can be alkalimetal ion and Tl +, Ga +, H 3o +, NH 4 +etc. a series of positively charged ions, wherein with Na-β-Al 2o 3tool practical significance, Beta-Al 2o 3one word if no special instructions, refers generally to Na-β-Al 2o 3.
Document is visible:
As if Song Shufeng, the moon coral, Lu Wei.Sodium-sulfur cell research and development key issue.DEC's comment, the 25th volume in 2011.
N.Weber,J.T.Kummer,Sodium-Sulfur?Secondary?batteries,Proc.21st?Annual?Power?Sources?Conference,1967,21:37-39.
Anodolyte described in the utility model and catholyte are solids at normal temperature, are molten state when work, and anodolyte is that purity is the sodium Metal 99.5 of 99.5% left and right, and catholyte is that purity is >=99.9% high pure sodium.
The useful technique effect that the utility model brings:
1, the sodium mouth that goes out of the utility model device is positioned on outside electrolyzer; in electrolytic process, cathode product high pure sodium can discharge easily and collect under the effect of gravity; do not need to pass into shielding gas and could discharge high pure sodium under pressurized state, improved efficiency, reduced cost.
2, diaphragm pipe of the present utility model adopts Na-β-Al 2o 3diaphragm pipe, the diaphragm pipe of this material can allow sodium ion to move therein, and other ion is not easy or can not move therein; With Na-β-Al 2o 3pipe is barrier film, separates anode metal sodium and negative electrode high pure sodium, carries out fusion electrolysis purification operation, the sodium of purifying metals, this apparatus structure is simple, technical process is simple, when purification almost without side reaction, reaction efficiency approaches 100%, the sodium Metal 99.5 purity of producing higher, purity is more than 99.9%.
3, the utility model is preferred, and cathode terminal is provided with shielding gas access equipment, can in fusion electrolysis purification process, avoid reacting of catholyte and air or water etc.; Preferably, subsidiary opening for feed is anodolyte entrance, can realize continuous purification; Preferably, catholyte entrance and anodolyte entrance all attach pre-heaters, can preheat starting material, guarantee that starting material are thrown in smooth and easy; Preferably, subsidiary temperature sensor, can Real-Time Monitoring refining temperature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference numeral: 1 is that electrolyzer, 2 is that heating unit, 3 is Na-β-Al 2o 3diaphragm pipe, 4 is negative electrode, 5 is anode, 6 is catholyte chamber, 7 is anodolyte chamber, 8 is high pure sodium collector, 9 is interface, 10 for going out sodium mouth valve, 11 for going out sodium mouth, 12 is catholyte entrance, 13 is catholyte entrance pre-heaters, 14 is catholyte inlet valve, 15 is anodolyte entrance, 16 is anodolyte entrance pre-heaters, 17 is anodolyte inlet valve, 18 is gas atmosphere inlet, 19 is gas atmosphere inlet valve, 20 is temperature sensor, 21 is shielding gas baroceptor.
Embodiment
embodiment 1
The purify metals device of sodium of fusion electrolysis, comprises electrolyzer 1, heating unit 2, Na-β-Al 2o 3diaphragm pipe 3, negative electrode 4 and anode 5, described Na-β-Al 2o 3diaphragm pipe 3 is arranged in described electrolyzer 1, described Na-β-Al 2o 3diaphragm pipe 3 inside are anodolyte chamber 7, described Na-β-Al 2o 3space between diaphragm pipe 3 and electrolyzer 1 is catholyte chamber 6; Described Na-β-Al 2o 3diaphragm pipe 3 tops are by pipeline communication anodolyte entrance 15, and described anode 5 is from Na-β-Al 2o 3insert in anodolyte chamber 7 at diaphragm pipe 3 tops; Described catholyte chamber 6 is by pipeline communication catholyte entrance 12, and described negative electrode 4 inserts in catholyte chamber 6 from electrolyzer 1 top; Described catholyte chamber 6 goes out sodium mouth 11 by pipeline communication, and the described sodium mouth 11 that goes out connects high pure sodium collector 8.
embodiment 2
The purify metals device of sodium of fusion electrolysis, comprises electrolyzer 1, heating unit 2, Na-β-Al 2o 3diaphragm pipe 3, negative electrode 4 and anode 5, described Na-β-Al 2o 3diaphragm pipe 3 is arranged in described electrolyzer 1, described Na-β-Al 2o 3diaphragm pipe 3 inside are anodolyte chamber 7, described Na-β-Al 2o 3space between diaphragm pipe 3 and electrolyzer 1 is catholyte chamber 6; Described Na-β-Al 2o 3diaphragm pipe 3 tops are by pipeline communication anodolyte entrance 15, and described anode 5 is from Na-β-Al 2o 3insert in anodolyte chamber 7 at diaphragm pipe 3 tops; Described catholyte chamber 6 is by pipeline communication catholyte entrance 12, and described negative electrode 4 inserts in catholyte chamber 6 from electrolyzer 1 top; Described catholyte chamber 6 goes out sodium mouth 11 by pipeline communication, and the described sodium mouth 11 that goes out connects high pure sodium collector 8.
Preferably, described anodolyte entrance 15 to Na-β-Al 2o 3on the pipeline of diaphragm pipe 3, be disposed with anodolyte pre-heaters 16 and anodolyte inlet valve 17.
Preferably, described catholyte entrance 12 is disposed with catholyte pre-heaters 13 and catholyte inlet valve 14 to the pipeline in catholyte chamber 6.
Preferably, described catholyte chamber 6, by pipeline communication gas atmosphere inlet 18, is provided with gas atmosphere inlet valve 19 on pipeline.
Further, described catholyte entrance 12 and gas atmosphere inlet 18 are arranged on the top of electrolyzer 1, the described middle part that goes out sodium mouth 11 and be arranged on electrolyzer 1.
Further, describedly go out between sodium mouth 11 and high pure sodium collector 8, to be provided with out sodium mouth valve 10 and interface 9.
Further; the purify metals device of sodium of described fusion electrolysis also comprises shielding gas baroceptor 21; described shielding gas baroceptor 21 inserts in catholyte chamber 6 from described electrolyzer 1 top, is positioned at the pipeline opening place that catholyte chamber 6 is communicated with gas atmosphere inlet 18.
Preferably, the purify metals device of sodium of described fusion electrolysis also comprises temperature sensor 20, and described temperature sensor 20 inserts in catholyte chamber 6 from described electrolyzer 1 top.
Preferably, described heating unit 2 is arranged on the outer pars intramuralis of electrolyzer 1.
embodiment 3
For further illustrating content of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is explained in detail.
As shown in Figure 1, utilize Na-β-Al 2o 3in material, can allow sodium ion to move therein, and the characteristic that other ion is not easy or can not moves therein; With Na-β-Al 2o 3diaphragm pipe 3 separates the catholyte in anodolyte and the catholyte chamber 6 in anode electrolysis dielectric cavity 7; On anode 5 and negative electrode 4, pass to direct current and carry out refining operation; Add anode metal sodium (anodolyte) from anodolyte entrance 15, sodium Metal 99.5, after anodolyte entrance pre-heaters 16 preheats, enters Na-β-Al 2o 3in diaphragm pipe 3; Negative electrode high pure sodium (catholyte) is added by catholyte entrance 12; The interpolation of anode metal sodium and negative electrode high pure sodium is controlled by anodolyte inlet valve 17 and catholyte inlet valve 14 respectively; Electrolyzer 1 is heated with heating unit 2; With temperature sensor 20 monitor temperatures; Shielding gas enters from gas atmosphere inlet 18, is controlled by gas atmosphere inlet valve 19 and shielding gas baroceptor 21; The high pure metal sodium of purifying out is entered high pure sodium collector 8 and is stored by interface 9 from going out sodium mouth 11, controls by going out sodium mouth valve 10.

Claims (9)

1. the fusion electrolysis device for sodium of purifying metals, comprises electrolyzer (1), heating unit (2), Na-β-Al 2o 3diaphragm pipe (3), negative electrode (4) and anode (5), is characterized in that: described Na-β-Al 2o 3diaphragm pipe (3) is arranged in described electrolyzer (1), described Na-β-Al 2o 3diaphragm pipe (3) inside is anodolyte chamber (7), described Na-β-Al 2o 3space between diaphragm pipe (3) and electrolyzer (1) is catholyte chamber (6); Described Na-β-Al 2o 3diaphragm pipe (3) top is by pipeline communication anodolyte entrance (15), and described anode (5) is from Na-β-Al 2o 3insert in anodolyte chamber (7) at diaphragm pipe (3) top; Described catholyte chamber (6) is by pipeline communication catholyte entrance (12), and described negative electrode (4) inserts in catholyte chamber (6) from electrolyzer (1) top; Described catholyte chamber (6) goes out sodium mouth (11) by pipeline communication, and the described sodium mouth (11) that goes out connects high pure sodium collector (8).
2. a kind of fusion electrolysis according to claim 1 device of sodium of purifying metals, is characterized in that: described anodolyte entrance (15) is to Na-β-Al 2o 3on the pipeline of diaphragm pipe (3), be disposed with anodolyte pre-heaters (16) and anodolyte inlet valve (17).
3. a kind of fusion electrolysis according to claim 1 device of sodium of purifying metals, is characterized in that: described catholyte entrance (12) is disposed with catholyte pre-heaters (13) and catholyte inlet valve (14) to the pipeline of catholyte chamber (6).
4. a kind of fusion electrolysis according to claim 1 device of sodium of purifying metals, is characterized in that: described catholyte chamber (6), by pipeline communication gas atmosphere inlet (18), is provided with gas atmosphere inlet valve (19) on pipeline.
5. a kind of fusion electrolysis according to claim 4 device of sodium of purifying metals; it is characterized in that: described catholyte entrance (12) and gas atmosphere inlet (18) are arranged on the top of electrolyzer (1) the described middle part that goes out sodium mouth (11) and be arranged on electrolyzer (1).
6. according to the purify metals device of sodium of a kind of fusion electrolysis described in claim 4 or 5, it is characterized in that: described go out between sodium mouth (11) and high pure sodium collector (8), to be provided with out sodium mouth valve (10) and interface (9).
7. according to the purify metals device of sodium of a kind of fusion electrolysis described in claim 4 or 5; it is characterized in that: the purify metals device of sodium of described fusion electrolysis also comprises shielding gas baroceptor (21); described shielding gas baroceptor (21) inserts in catholyte chamber (6) from described electrolyzer (1) top, is positioned at the pipeline opening place that catholyte chamber (6) is communicated with gas atmosphere inlet (18).
8. a kind of fusion electrolysis according to claim 1 device of sodium of purifying metals, it is characterized in that: the purify metals device of sodium of described fusion electrolysis also comprises temperature sensor (20), and described temperature sensor (20) inserts in catholyte chamber (6) from described electrolyzer (1) top.
9. a kind of fusion electrolysis according to claim 1 device of sodium of purifying metals, is characterized in that: described heating unit (2) is arranged on the outer pars intramuralis of electrolyzer (1).
CN201420060473.6U 2014-02-10 2014-02-10 Device for purifying metal sodium through fusion electrolysis Expired - Lifetime CN203700542U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113279015A (en) * 2021-05-21 2021-08-20 中南大学 Method for preparing high-purity lithium by using double-chamber molten salt electrolytic cell based on solid electrolyte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113279015A (en) * 2021-05-21 2021-08-20 中南大学 Method for preparing high-purity lithium by using double-chamber molten salt electrolytic cell based on solid electrolyte

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Effective date of registration: 20180426

Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan

Patentee after: DONGFANG ELECTRIC Co.,Ltd.

Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333

Patentee before: DONGFANG ELECTRIC Corp.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140709