CN104451786A - Electrolytic cell for low-energy extraction of rare-earth metals - Google Patents
Electrolytic cell for low-energy extraction of rare-earth metals Download PDFInfo
- Publication number
- CN104451786A CN104451786A CN201410680242.XA CN201410680242A CN104451786A CN 104451786 A CN104451786 A CN 104451786A CN 201410680242 A CN201410680242 A CN 201410680242A CN 104451786 A CN104451786 A CN 104451786A
- Authority
- CN
- China
- Prior art keywords
- anode
- negative electrode
- electrolyzer
- removable
- cell body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides a novel electrolytic cell structure, and particularly relates to an electrolytic cell for low-energy extraction of rare-earth metals. The electrolytic cell comprises a cell body, a cathode, a movable anode, an insulating layer, a thermal-insulation sealing furnace lid and an anodic conducting rod, wherein the cathode and the movable anode are vertically and parallelly placed in the cell body; the insulating layer and the thermal-insulation sealing furnace lid are located at the upper part of the cell body; the anodic conducting rod penetrates through the side wall of the insulating layer; one end of the anodic conducting rod is detachably and fixedly connected with the movable anode; the other end of the anodic conducting rod is connected with a sliding mechanism outside the cell body; the horizontal movement of the anodic conducting rod can be realized by controlling the configuration of the sliding mechanism so as to control the anode to move to be close to or be away from the cathode in the horizontal direction. Trough the movement of the anode, the novel electrolytic cell structure solves the problem that the heat loss and the energy consumption are increased in the electrolytic process because the polar distance is increased.
Description
Technical field
The invention belongs to the extraction element relating to rare earth metal and alloy thereof, particularly a kind of electrolyzer for electrowinning rare earth metal.
Background technology
Current most light rare earth metal all adopts fused salt electrolysis process to obtain, as fused salt electrolysis process produces lanthanum, cerium, praseodymium, neodymium and praseodymium neodymium alloy, Dy-Fe alloy etc.Wherein adopted electrolyte system comprises two kinds: electrolysis of chloride plastome, as REC1
3-KCl; Fluorochemical-oxide electrolysis plastome, as RE
2o
3-REF
3-LiF.
Current domestic main employing fluorochemical-oxide system electrolytic preparation rare earth metal.Wherein plumbago crucible takes up ionogen as liner, and using four circular arc graphite blocks as anode, crucible axis configures molybdenum or tungsten bar as negative electrode, bottom tungsten or molybdenum crucible collect metal.Such cell capacity is 3000-10000A, can be used for producing neodymium metal, praseodymium, lanthanum, cerium, and the alloy such as praseodymium-neodymium, neodymium-iron, dysprosium-iron, gadolinium-iron, holmium-iron, erbium-iron, yttrium-iron, electrolyzer adopts hand-fed and manual extraction metal, and upper part of the electrolytic cell is generally open design.
In current cell construction, along with the carrying out of electrolysis, anode consumes gradually, and the distance of negative electrode and positive electrode increases gradually, and joule heating increases, and the temperature of electrolyzer increases.In order to maintain the heat balance of electrolyzer, electrolyzer is open container to increase heat dissipation capacity.Electrolysis temperature is usually above the fusing point about 100 DEG C of rare earth metal.The electrolytic bath pressure of this kind of structure up to about 10V, far above the theoretical decomposition voltage of rare earth oxide.The energy consumption of current neodymium electrolyzer is at about 9.5kWh/kg, and wherein the theoretical power consumption of Neodymium trioxide is only 1.334kWh/kg, and utilization rate of electrical is about 14%.The uncovered structure of electrolyzer result in electrolyzer calorific loss and increases, gas cannot be collected effectively completely, thus making potroom temperature high, containing fluorocarbon and hydrogen fluoride gas in environment, wherein fluorocarbon is the room temperature air that countries in the world clearly forbid to discharge.
In order to solve the problem, Chinese patent 99127580.2 and patent 02240881.9 pair of cell construction improve.Patent 99127580.2 adopts round shape graphitic cell cell body, and negative electrode inserts from top, and multiple blocky graphite anode inserts from top equally, is looped around around negative electrode.Chinese patent 02240881.9 adopts two-layer anode and multiple negative electrode in circular graphitic cell construction.Electrolyzer center is cylindric anode, and electrolyzer skin is multiple negative electrode, and the skin of negative electrode is the anode of circular ring type.The common feature of above-mentioned electrolyzer is: anode and negative electrode all insert ionogen above electrolyzer, and along with the carrying out of electrolytic process, anode constantly consumes, and pole span constantly increases, and groove pressure is corresponding increase also.Therefore, above-mentioned patent does not still effectively solve the problem that in electrolytic process, pole span constantly increases, and pole span in electrolytic process cannot be kept constant.The structure of anode and negative electrode is placed by patent CN101368282A up and down, and namely negative electrode is positioned over the bottom of electrolyzer, and anode is placed on the top of negative electrode and is connected with transmission rig, is regulated and the distance of fixed negative pole and anode by transmission rig.This similar is in the structure of aluminium cell, but because Rare Earth Electrolysis temperature is far above aluminium electrolytic temperature, and the activity of rare earth metal and rare earth metal fluorochemical is far above the character of respective metal aluminium and sodium aluminum fluoride, is difficult to the insulating material finding applicable rare earth electrolysis cell.Therefore, this patent makes little progress in enforcement.
Because in Rare Earth Electrolysis process, temperature is high, fluoride corrosion is strong, and more difficult to the improvement of existing cell construction, therefore, the problems referred to above are not effectively solved.
Summary of the invention
The present invention is directed to Problems existing in rare earth electrolysis cell conventional at present, namely along with the electrode pole span that carries out of electrolysis increases gradually, electrolyzer temperature raises, and energy consumption increase and anodic gas cannot be collected very well and propose.
The present invention is for the preparation of the electrolyzer of rare earth metal, and it comprises: cell body; Be positioned at the negative electrode of the vertical parallel to each other placement of cell body and removable anode; And being positioned at insulation layer and the thermal-insulating sealing bell on cell body top, the sidewall break-through of insulation layer has conductive anode rod.One end of conductive anode rod is removably fixedly connected with removable anode, the other end is connected with the slide mechanism of cell body outside, slide mechanism is configured to for controlling conductive anode rod movement in the horizontal direction, to realize anode in the horizontal direction towards or away from the movement of negative electrode.
Preferably, electrolyzer of the present invention, wherein said negative electrode is the cylindrical cathode being positioned at cell body central position, and removable anode is the multiple removable anode arranged around negative electrode, and each removable anode controls it in the horizontal direction towards or away from the movement of negative electrode by respective conductive anode rod.
Preferably, electrolyzer of the present invention, wherein said negative electrode is cylindrical cathode, and described removable anode is graphite anode, and the removable anode of more than four pieces is in the circumferentially equidistant placement centered by negative electrode.
Preferably, electrolyzer of the present invention, wherein bell is provided be communicated with electrolyte bath self-feeding, automatic discharge apparatus and collection and confinement of gases mouth.
Preferably, electrolyzer of the present invention, wherein said removable anode is for waiting arc annulus column graphite anode, in electrolytic process, along with the continuous consumption of removable anode, control slide mechanism and move horizontally removable anode discontinuously, the spacing maintaining negative electrode and removable anode is substantially constant.
Beneficial effect
The present invention overcomes Problems existing in rare earth electrolysis cell conventional at present, namely along with the electrode pole span that carries out of electrolysis increases gradually, causes electrolyzer temperature rising, energy consumption increase.Meanwhile, in order to maintain the heat balance of electrolyzer, electrolyzer is open container to increase heat dissipation capacity, top anodic gas cannot be collected very well and propose.
This invention is moved by anode, solves pole span in electrolytic process and constantly increases caused heat lost by radiation increase, the problem that energy consumption increases.Adopt this grooved that the groove pressure that is constant, that make electrolyzer of pole span in electrolytic process can be kept to be reduced to 7-8V from 10V, significantly reduce the energy consumption of electrolyzer.In electrolytic process, choose reasonable electrolytic parameter, significantly reduces the amount of precipitation of fluorocarbon; Because electrolyzer achieves reasonable airtight and anodic gas collection, reduce the temperature of potroom, achieve the target of environmental friendliness electrolysis rare earth metal.Therefore, this invention has good economic and social benefit.
Accompanying drawing explanation
Figure 1 shows that the front sectional view of cell construction of the present invention;
Fig. 2 (a) and Fig. 2 (b) is respectively front sectional view and the vertical view of conductive anode rod shown in Fig. 1;
Fig. 3 is the schematic perspective view of slide mechanism shown in Fig. 1; And
Fig. 4 (a) and Fig. 4 (b) is respectively in Fig. 1 the part sectioned view and partial perspective view that are positioned at upper part of the electrolytic cell thermal-insulating sealing bell.
Reference numeral is explained in detail
1 leading screw base; 2 leading screws; 3 stoppers; 4 scale handwheels; 5 fixed conversion blocks; 6 line slide rail bearings; 7 anode-supported conducting platess; 8 line slide rails; 9 holding bolts; 10 sliding-rail slidings; 11 bearings; 12 axles; 13 filling tubes; 13-1 charging opening; 14 offgas outlet; 15 cathode insulation saddles; 16 negative electrodes; 17 extract metal tube; 17-1 extracts metal mouth; 18 bells; 19 conductive anode rods; 20 insulation layers; 21 screws; 22 graphite anodes; 23 thermofins; 24 rare earth metal receptors; 25 refractory cementss; 26 metal platens; 27 carbon steel overcoats; 28 cellucottons; 29 insulating bricks; 30 carbon steel covers; 31 refractory brick; 32 graphite blocks; 33 plumbago crucibles.
Embodiment
The present invention is directed in rare earth metal fluoride molten salt electrolytic process, by moving anode, keep constant distance between negative electrode and anode, thus keep electrolyzer temperature field in electrolytic process constant; Adopt moveable thermal-insulating sealing bell effectively reduce the calorific loss of electrolyzer and realize effective collection of anodic gas at upper part of the electrolytic cell, thus reach and reduce electrolytic bath pressure, reduce electrolyzer energy consumption and eco-friendly object.
The invention provides a kind of Novel electrolytic cell structure, wherein mainly comprise negative electrode and removable anode, upper part of the electrolytic cell insulation layer and thermal-insulating sealing bell, self-feeding and automatic discharge apparatus.Negative electrode puts into slot electrode with anode from upper part of the electrolytic cell is vertical.Anode top is connected with sidepiece anode rod, and anode rod is connected with electrolyzer slide mechanism.In electrolytic process, by mobile slide mechanism, anode rod and graphite anode are produced and moves horizontally, thus to keep in electrolytic process negative electrode and anode apart from constant.Minimizing calorific loss can be incubated at the thermal-insulating sealing bell of upper part of the electrolytic cell, can also be used to collect anodic gas.In the process changing anode, thermal-insulating sealing bell can be opened by moving horizontally.Thermal-insulating sealing bell there are charging opening and METAL EXTRACTION mouth, timing automatic can be realized and feed in raw material and rely on pressure reduction to extract liquid rare earth metal and the alloy of bottom of electrolytic tank.This electrolyzer, by adopting removable anode, insulation layer and the airtight bell of insulation, has the advantages that electrode pole span is constant, thermal field is stablized, energy consumption is low, collection and confinement of gases is complete, environmental friendliness, level of automation are high.
Such as, the present invention adopts 4 pieces to wait the cylindric graphite anode of arc, and cylindrical metal negative electrode, in electrolytic process, along with the continuous consumption of anode, moving anode discontinuously, the spacing of maintenance electrode is constant.
The present invention, while electrode movement, realizes by thermal-insulating sealing bell the object that electrolyzer was well incubated, and collected gas, self-feeding and automatically extracted metal at upper part of the electrolytic cell.Reduced the calorific loss of electrolyzer by insulation good in plumbago crucible external structure further, thus realize that pole span is constant, thermal field stable, groove forces down low with energy consumption, eco-friendly Rare Earth Electrolysis process.The present invention can realize the electrolysis of 3000-10000A rare earth electrolysis cell.
Particularly, the present invention can be realized by following concrete structure.
The cell construction schematic diagram (front view) that one embodiment of the invention adopts as shown in Figure 1.Plumbago crucible 33 is coated with graphite block 32, refractory brick 31, carbon steel cover 30, insulating brick 29, cellucotton 28 and carbon steel overcoat 27 successively outside it; And above plumbago crucible 33 (i.e. the top of cell wall) for refractory cements 25 in order to insulation and insulation, these parts form electrolytic cell body jointly.This spline structure contributes to realizing electrolyzer to be well incubated, to reduce calorific loss.
Plumbago crucible 33 is for taking up ionogen.Graphite anode 22 and metallic cathode 16 are vertically arranged in electrolyzer, can put into from upper part of the electrolytic cell.Metallic cathode is positioned in the middle part of electrolyzer, and graphite anode waits arc graphite block to form round shape, round negative electrode by four pieces.Above cell wall, part adopts insulation layer 20 to cover in the inner part.Be moveable thermal-insulating sealing bell 18 above insulation layer 20, contact with insulation layer 20 on the downside of bell 18 outer rim.Bell 18 be provided with filling tube 13 and extract metal tube 17, and collecting gas port and offgas outlet 14.Negative electrode 16 to conduct electricity with external power source through the central opening of bell 18 and is connected.Extract the metallic receptor 24 taking up rare earth metal that metal tube 17 leads to bottom of electrolytic tank.Insulation layer 20 sidewall also break-through has conductive anode rod 19.One end of conductive anode rod 19 is connected by screw 21 with graphite anode 22 top in electrolyzer, and the other end of anode rod 19 is connected with the slide mechanism of electrolyzer outside.Slide mechanism is placed on metal platen 26, and metal platen 26 is fixed on groove side wall upper part by outermost part.By controlling slide mechanism, conductive anode rod 19 can be moved in the horizontal direction, and then graphite anode 22 moves in the horizontal direction in control electrolyzer, particularly, the vertical graphite anode 22 placed can be moved in the horizontal direction towards the metallic cathode in (or leaving) electrolyzer mid-way.
As shown in Figure 2, as shown in Figure 3, upper part of the electrolytic cell thermal-insulating sealing bell schematic diagram as shown in Figure 4 for slide mechanism schematic diagram for conductive anode rod structural representation.
As nonrestrictive example, described slide mechanism comprises leading screw base 1, leading screw 2, stopper 3, scale handwheel 4, fixed conversion block 5, line slide rail bearing 6, anode-supported conducting plates 7, line slide rail 8, holding bolt 9, sliding-rail sliding 10 and thermofin 23.Slide mechanism Anodic supports conducting plates 7 one side and is connected with conductive anode rod 19 (in Fig. 1), one side is connected with fixed conversion block 5, fixed conversion block 5 center is fixed on leading screw 1, the turning handle rotated on scale handwheel 3 can control leading screw 1 and retreat, and then realizes moving freely of electrolytic process Anodic.In electrolytic process, Minimum sliding distance is 2-3 millimeter.Anode material adopts graphite, and anode rod 19 material employing stainless steel, nickel-base alloy etc. is high temperature resistant, corrosion resistant material.Slide mechanism adopts the material such as carbon steel, stainless steel.The object lesson of conductive anode rod 19 and slide mechanism can see Fig. 2 (a), 2 (b) and Fig. 3.
Shown in Fig. 4 (a) He Fig. 4 (b), the thermal-insulating sealing bell 18 of upper part of the electrolytic cell is made up of stepped two semicolumns, be separately fixed on axle 12 that (two axles are fixed on metal platen 26, lay respectively at the two ends of lid diameter, bearing 11 is in order to fixed support axle 12).When bell 18 is opened, respectively with axle 12 for fulcrum moves horizontally to reverse direction each other.The brine corrosion of bell high temperature resistant melt, can realize the object being incubated, freely opening, move horizontally, and its structure does not affect the movement of anode.On bell 18 top, negative electrode 16 is incubated, and has offgas outlet 14 to collect anodic gas.The material being applicable to electrolyzer thermal-insulating sealing bell comprises heat-resisting, corrosion resistant metal as, materials such as tungsten, metal molybdenum, metal nickel-base alloy, stainless steel.
This bell 18 has charging opening, and the position of charging opening is close to anode, and filling tube 13 extends to the position of Bath liquid level from charging opening, and this Material selec-tion is consistent with thermal-insulating sealing bell material.Timing automatic can be realized by this filling tube to feed in raw material.Extract metal tube 17 one end to be connected with the liquid metal in electrolyzer, the other end is connected with vacuum apparatus, by pressure reduction Extraction of rare earth metal.Extract metal tube and adopt the material identical with electrolyzer thermal-insulating sealing bell.Filling tube 13 and extraction metal tube 17 are fixed on axle 12.The negative electrode 16 having cathode insulation saddle 15 to stretch out in order to insulate in lid 18 central upper portion position and bell 18.
As shown in Figure 2, as shown in Figure 3, upper part of the electrolytic cell thermal-insulating sealing bell schematic diagram as shown in Figure 4 for slide mechanism schematic diagram for conductive anode rod structural representation.
Embodiment 1
In 4000A rare earth electrolysis cell, round shape plumbago crucible carrying ionogen is outward fire-resistant and lagging material at plumbago crucible, and upper part of the electrolytic cell is the lid having insulation and collect gas.Graphite anode is 4 pieces and waits arc annulus, and negative electrode adopts overall cylindric.Distance between negative electrode and anode is 5 centimetres, and the current density of negative electrode and anode is respectively 3.1A/cm
2and 1.11A/cm
2.In electrolytic process, graphite anode often consumes 3mm, namely starts graphite anode to move 3mm to electrolyzer central point, and this moves can manually movement, also can movement automatically, thus the spacing maintaining electrode is constant.Electrolysis temperature remains on 1055 DEG C, and the voltage of electrolyzer equals 7.2V.Adopt METAL EXTRACTION pipe, by pressure reduction, rare earth metal is extracted out from electrolyzer, and carry out ingot casting.Changing in anodic process, manually the bell of electrolyzer is being opened, after replacing anode terminates, the bell of electrolyzer is being shut.
Embodiment 2
In 6000A rare earth electrolysis cell, carrying electrolytical is round shape plumbago crucible, is outward fire-resistant and lagging material at plumbago crucible, and upper part of the electrolytic cell is the lid having insulation and collect gas.Graphite anode is 4 pieces and waits arc annulus, the overall cylindrical-shaped structure of negative electrode.Distance between negative electrode and anode is 6 centimetres, and the current density of negative electrode and anode is respectively 3.6A/cm
2and 1.3A/cm
2.In electrolytic process, graphite anode often consumes 3mm, and graphite anode moves 3mm to electrolyzer central point, thus the spacing maintaining electrode is constant.Accept the molybdenum crucible for having domatic structure of rare earth metal.Electrolysis temperature remains on 1050 DEG C, and the voltage of electrolyzer equals 7.6V.In extraction metal and replacing anodic process, manually the lid of electrolyzer is opened, after replacing anode terminates, the lid of electrolyzer is shut.
Claims (5)
1., for the preparation of an electrolyzer for rare earth metal, it comprises:
Cell body;
Be positioned at the negative electrode of the vertical parallel to each other placement of cell body and removable anode; And
Be positioned at insulation layer and the thermal-insulating sealing bell on cell body top, the conductive anode rod of break-through insulating layer sidewalls,
Wherein, one end of conductive anode rod is removably fixedly connected with removable anode, the other end is connected with the slide mechanism of cell body outside, and slide mechanism is configured to for controlling conductive anode rod movement in the horizontal direction, to realize anode in the horizontal direction towards or away from the movement of negative electrode.
2. electrolyzer as claimed in claim 1, wherein said negative electrode is the cylindrical cathode being positioned at cell body central position, removable anode is the multiple removable anode arranged around negative electrode, and each removable anode controls it in the horizontal direction towards or away from the movement of negative electrode by respective conductive anode rod.
3. electrolyzer as claimed in claim 2, wherein said negative electrode is cylindrical cathode, and described removable anode is graphite anode, and the removable anode of more than four pieces is in the circumferentially equidistant placement centered by negative electrode.
4. electrolyzer as claimed in claim 1, wherein bell is provided be communicated with electrolyte bath self-feeding, automatic discharge apparatus and collection and confinement of gases mouth.
5. the electrolyzer as described in any one of claim 1-4, wherein said removable anode is for waiting arc annulus column graphite anode, in electrolytic process, along with the continuous consumption of removable anode, control slide mechanism and move horizontally removable anode discontinuously, the spacing maintaining negative electrode and removable anode is substantially constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410680242.XA CN104451786A (en) | 2014-11-24 | 2014-11-24 | Electrolytic cell for low-energy extraction of rare-earth metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410680242.XA CN104451786A (en) | 2014-11-24 | 2014-11-24 | Electrolytic cell for low-energy extraction of rare-earth metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104451786A true CN104451786A (en) | 2015-03-25 |
Family
ID=52898514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410680242.XA Pending CN104451786A (en) | 2014-11-24 | 2014-11-24 | Electrolytic cell for low-energy extraction of rare-earth metals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104451786A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937041A (en) * | 2016-07-05 | 2016-09-14 | 宁波复能新材料股份有限公司 | Electrode device of rare earth alloy electrolysis production equipment |
| CN105951129A (en) * | 2016-07-15 | 2016-09-21 | 贺州市金利新材料有限公司 | T-shaped graphite anode |
| CN105951128A (en) * | 2016-07-05 | 2016-09-21 | 宁波复能新材料股份有限公司 | Electrolytic production device for rare earth alloy |
| CN106835204A (en) * | 2017-04-21 | 2017-06-13 | 包头市鑫业新材料有限责任公司 | A kind of light rare earth electrolytic metal rotary electrolysis stove |
| CN115433971A (en) * | 2022-09-13 | 2022-12-06 | 宁波复能稀土新材料股份有限公司 | Multifunctional integrated automatic control device for rare earth alloy electrolytic cathode |
-
2014
- 2014-11-24 CN CN201410680242.XA patent/CN104451786A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937041A (en) * | 2016-07-05 | 2016-09-14 | 宁波复能新材料股份有限公司 | Electrode device of rare earth alloy electrolysis production equipment |
| CN105951128A (en) * | 2016-07-05 | 2016-09-21 | 宁波复能新材料股份有限公司 | Electrolytic production device for rare earth alloy |
| CN105951129A (en) * | 2016-07-15 | 2016-09-21 | 贺州市金利新材料有限公司 | T-shaped graphite anode |
| CN105951129B (en) * | 2016-07-15 | 2018-11-06 | 贺州市金利新材料有限公司 | T-type graphite anode |
| CN106835204A (en) * | 2017-04-21 | 2017-06-13 | 包头市鑫业新材料有限责任公司 | A kind of light rare earth electrolytic metal rotary electrolysis stove |
| CN115433971A (en) * | 2022-09-13 | 2022-12-06 | 宁波复能稀土新材料股份有限公司 | Multifunctional integrated automatic control device for rare earth alloy electrolytic cathode |
| CN115433971B (en) * | 2022-09-13 | 2023-05-02 | 宁波复能稀土新材料股份有限公司 | Multifunctional integrated self-control device for rare earth alloy electrolytic cathode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104451786A (en) | Electrolytic cell for low-energy extraction of rare-earth metals | |
| CN101709485B (en) | Aluminum electrolytic cell for producing virgin aluminum by inert anode | |
| CN103556181B (en) | A kind of metal lithium electrolytic bath | |
| CN103757661A (en) | Aluminum electrolysis inert anode | |
| CN105256337B (en) | A kind of novel rare-earth electrolytic cell | |
| CN108193235A (en) | A kind of rare earth electrolysis cell electrode structure and rare earth electrolysis cell | |
| CN110484937B (en) | Rare earth electrolytic cell for producing rare earth and alloy thereof | |
| WO2013016929A1 (en) | Preheating start method of aluminum electrolysis cell | |
| CN103290434A (en) | Fused-salt electrolytic cell for producing rare earth metals and alloys | |
| CN104313643A (en) | High-purity antimony producing method by two-section fused salt electrolysis method | |
| CN200952043Y (en) | Liquid cathode electrolytic tank for electrolytic production rare earth metal and alloy thereof | |
| CN205241811U (en) | Tombarthite fused salt electrolysis groove of liquid negative pole production rare earth metal and alloy | |
| CN203360596U (en) | Molten salt electrolytic bath for producing rare-earth metal and alloy | |
| CN105441987A (en) | Rare earth fused-salt electrolysis cell for producing rare earth metals and alloys by using liquid cathode | |
| CN205099767U (en) | Electrolytic cell assembly with extensive rare refractory metal of continuous production | |
| CN112522741A (en) | Closed type rare earth chloride system electrolytic cell | |
| CN201305637Y (en) | Rare earth electrolysis cell | |
| CN209741286U (en) | Large capacity rare earth electrolytic bath device | |
| CN104928719A (en) | Novel molten salt electrolysis smelting high-purity titanium device and smelting method thereof | |
| CN204982083U (en) | Novel fused salt electrolysis smelts high purity titanium device | |
| CN103993332B (en) | A kind of energy-saving aluminum cell and its interpole | |
| CN204198869U (en) | A kind of high yield and saving energy re metal electrolyzing stove | |
| CA2483245A1 (en) | Process and apparatus for smelting aluminum | |
| CN203559139U (en) | Preparation device of chloride compound electrolyte for electrolyzing molten salt | |
| CN103540958A (en) | Aluminum cell provided with suspending partition wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |