CN203373435U - Device for preparing lithium by feeding back chlorine in internal circulating way and melting electrolysis - Google Patents
Device for preparing lithium by feeding back chlorine in internal circulating way and melting electrolysis Download PDFInfo
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- CN203373435U CN203373435U CN201320231584.4U CN201320231584U CN203373435U CN 203373435 U CN203373435 U CN 203373435U CN 201320231584 U CN201320231584 U CN 201320231584U CN 203373435 U CN203373435 U CN 203373435U
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- chlorine
- chamber
- feeds back
- temperature fusion
- reaction tank
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Abstract
The utility model relates to a device for preparing lithium by feeding back chlorine in an internal circulating way and melting electrolysis. The device comprises a reaction tank (13), a decomposition chamber (1), a high-temperature melting chamber (11), an iron cathode (3), a graphite anode (6), a chlorine feeding back pipe (8) and a circulating air feeding back pipe (9), wherein an electrolytic cell is arranged in the reaction tank (13); the electrolytic cell comprises the decomposition chamber (1) and the high-temperature melting chamber (11) which are communicated with each other; the chlorine feeding back pipe (8) is communicated with a chlorine pumping hole (4) and the bottom of the high-temperature melting chamber (11); the chlorine is not discharged outside, so that the production efficiency is improved, and the quality of metal lithium is improved; furthermore, auxiliary equipment used for discharging the chlorine outside can be saved, and the influence of the auxiliary equipment is avoided; furthermore, the related technologies such as concentration crystallization, centrifugal separation, high-temperature drying, lithium ingot melting, and vacuum distillation can be saved, so that the working procedures are remarkably saved, and the equipment cost and the production cost are reduced; the device is convenient to install and operate, rapid in reaction speed, good in structural integrity, and safe and reliable.
Description
Technical field
The utility model relates to the compound treatment technology of International Classification of Patents C01D alkali metal lithium, and especially chlorine feeds back the fusion electrolysis lithium production device of internal recycle.
Background technology
Lithium is a kind of softness, silver gray, the very easily alkali metal of reaction.Its proportion in metal is the lightest.Lithium is easily oxidized in air, so must be stored in solid paraffin or rare gas element.It can with water and acid effect releasing hydrogen gas, easily and the chemical combination such as oxygen, nitrogen, sulphur.The solubleness of lithium salts in water and magnesium salts seemingly, and are different from other an alkali metal salt.
Lithium is larger in the occurring in nature abundance, occupies the 27th, in the earth's crust, approximately contains 0.0065%.Lithium only extensively is present in occurring in nature with the form of compound.The mineral of lithium have more than 30 to plant, and mainly are present in triphane (LiAlSi
2o
6) and lithionite and petalite ((LiNa) AlSi
4o
10) and variscite in.The existence of lithium is arranged in organism, soil and the mineral water of humans and animals, cocoa powder, tobacco leaf, marine alga.Lithium can be made by electrolyzing fused lithium chloride.At first Guntz advises preparing metallic lithium with the mixture of electrolyzing fused lithium chloride and Repone K, can be reduced to 400 ℃ to melt temperature from 610 ℃ of simple substance lithium like this.Take graphite as anode, take soft steel as negative electrode, electrolyzer is pressed as 6.0-6.5V.So just can obtain the lithium that purity is 99%.
At present, when the method for commercial production of metals lithium is electrolyzing fused lithium chloride-Repone K mixing salt electrolysis, decomposes the less lithium ion of electrolysis and at first separate out and become metallic lithium:
Negative electrode: Li
++ e
-→ Li, wherein, Li is liquid;
Anode: 2Cl
-→ Cl
2+ 2e
-
Net reaction is: 2LiCl
(1)→ 2Li
++ 2Cl
-→ 2Li+Cl
2
Lithium chloride (anhydrous) used is that hydrochloric acid generates lithium chloride solution with the alkaline, lithium reactant salt, again by after this solution high speed evaporating, concentrating and crystallizing, after centrifugation goes out the crystallization lithium chloride, putting into the converter of titanium high temperature dries again, because corrodibility and the water-absorbent of lithium chloride are all extremely strong, production link is easily sneaked into impurity, so complex manufacturing, high to equipment requirements, cost significantly exceeds alkaline lithium salts, secondly, producing chlorine during due to electrolysis can be to equipment, personnel and environment cause and have a strong impact on, therefore, general manufacturing enterprise can't produce metallic lithium, this is also to cause the metallic lithium price to occupy high major reason, also further make the subsequent applications cost can't progressively descend for a long time simultaneously, limited the application of lithium in relevant industries.
The utility model content
The purpose of this utility model is to provide the fusion electrolysis lithium production device that chlorine feeds back internal recycle, when realizing not having chlorine to efflux, effectively reduces production costs.
The purpose of this utility model realizes by following technical measures: electrolyzer is installed in reaction tank, and this electrolyzer comprises decomposition chamber and the high-temperature fusion chamber be interconnected; Decompose the indoor location graphite anode, be set with Porous Stainless Steel barrier film vestlet outside graphite anode, Porous Stainless Steel barrier film vestlet upper end passes the reaction tank top and connects chlorine extracts mouth out, outside Porous Stainless Steel barrier film vestlet, iron cathode is installed, in the decomposition chamber top iron cathode outside, connects into recircilated air intake; Top, high-temperature fusion chamber is installed recirculated air and is fed back pipe and loading hopper, and the titanium sieve plate is installed at middle part, high-temperature fusion chamber, and bottom, high-temperature fusion chamber connects into chlorine and feeds back pipe; Recirculated air feeds back manages the upper vacuum pump of installing, the recircilated air intake at recirculated air feedback pipe connection top, high-temperature fusion chamber and decomposition chamber top, and chlorine feeds back pipe connection chlorine and extracts mouth and bottom, high-temperature fusion chamber out.
The beneficial effects of the utility model are: chlorine feeds back pipe and is communicated with chlorine extraction mouth and bottom, high-temperature fusion chamber, no longer to effluxing chlorine, not only enhance productivity and the metallic lithium quality, and, avoided effluxing the required utility appliance of chlorine with and the impact, in addition, the techniques such as the relevant condensing crystal of saving, centrifugation, hyperthermia drying, the fusing of lithium ingot and vacuum distilling, significantly save operation, reduction equipment and production cost, installation, easy to operate, speed of response is fast, structural integrity is good, safe and reliable.
The accompanying drawing explanation
Fig. 1 is preparation method's application apparatus structural principle schematic diagram in the utility model
Reference numeral comprises: decomposition chamber 1, recircilated air intake 2, iron cathode 3, chlorine is extracted mouth 4, Porous Stainless Steel barrier film vestlet 5, graphite anode 6 out, vacuum pump 7, chlorine feeds back pipe 8, and recirculated air feeds back pipe 9, loading hopper 10, high-temperature fusion chamber 11, exhanst gas outlet 12, reaction tank 13, burner 14, fuel gas inlet 15, titanium sieve plate 16, taper collector groove 17, discharge gate 18.
Embodiment
The utility model comprises, reaction tank 13, decomposition chamber 1, high-temperature fusion chamber 11, iron cathode 3, graphite anode 6, chlorine feedback pipe 8 and recirculated air feedback pipe 9.Below in conjunction with drawings and Examples, further illustrate.
In the utility model, as shown in Figure 1, the interior installation electrolyzer of reaction tank 13, this electrolyzer comprises decomposition chamber 1 and the high-temperature fusion chamber 11 be interconnected; The interior installation graphite anode 6 of decomposition chamber 1, at the outer suit Porous Stainless Steel of graphite anode 6 barrier film vestlet 5, Porous Stainless Steel barrier film vestlet 5 upper ends pass reaction tank 13 tops and connect chlorine extracts mouth 4 out, in the outer installation iron cathode 3 of Porous Stainless Steel barrier film vestlet 5, in decomposition chamber 1 top iron cathode 3 outsides, connect into recircilated air intake 2; 11 tops, high-temperature fusion chamber are installed recirculated air and are fed back pipe 9 and loading hopper 10, and titanium sieve plate 16 is installed at 11 middle parts, high-temperature fusion chamber, and 11 bottoms, high-temperature fusion chamber connect into chlorine and feed back pipe 8; On recirculated air feedback pipe 9, vacuum pump 7 is installed, recirculated air feeds back the recircilated air intake 2 of managing 9 connection 11 tops, high-temperature fusion chamber and decomposition chamber 1 top, and chlorine feeds back pipe 8 and is communicated with chlorine extraction mouth 4 and 11 bottoms, high-temperature fusion chamber.
In the utility model, the interior install combustion device 14 of reaction tank 13, fuel gas inlet 15 is installed in reaction tank 13 wall bottom perforates, and fuel gas inlet 15 connects burner 14, and exhanst gas outlet 12 is installed in reaction tank 13 wall top perforates; Taper collector groove 17 is arranged at 11 bottoms, high-temperature fusion chamber, and chlorine feeds back pipe 8 and connects into taper collector groove 17, and simultaneously, taper collector groove 17 bottoms pick out discharge gate 18.
In aforementioned, high-temperature fusion chamber 11 walls are titanium vessels, and it is the nickel pipe that chlorine feeds back pipe 8, and high-temperature fusion chamber 11 internal upper parts are molten state alkalescence lithium salts.
In aforementioned, from loading hopper 10, add anhydrous alkaline lithium salts.
The utility model is when work, the chlorine that graphite anode 6 produces in electrolyzer feeds back pipe 8 via chlorine and takes out toward the high-temperature fusion chamber 11 of decomposer on reaction tank 13, from bottom to top through POROUS TITANIUM sieve plate 16, alkaline lithium salts with melting reacts, generate lithium chloride and continue electrolysis, owing to being swift in response, constantly at negative electrode, generate metallic lithium from bottom to top.In high-temperature fusion chamber 11,500 ℃ of reaction tank 1 working temperatures, wherein:
Cl
2+LiOH→LiCl+O
2↑+H
2O
H wherein
2o is gaseous state; The H of gaseous state
2o and O
2feed back pipe 9 from 11 tops, high-temperature fusion chamber through recirculated air and enter decomposition chamber 1 by recircilated air intake 2 vacuum pump 7 promotes; Simultaneously, the melting lithium chloride that proportion is larger is from being entered the interior supplementary used up lithium chloride of electrolyzer decomposition chamber 1 by bottom.
In aforementioned, so repeatedly, chlorine in fact becomes the carrier of delivery lithium ion, come and go and be circulated between decomposition chamber 1 and high-temperature fusion chamber 11, and no longer discharge, because the chlorine purity is higher, therefore as long as after alkaline lithium salts recrystallization is purified, the lithium chloride purity of the two generation is higher directly in molten state, can directly carry out electrolysis, save condensing crystal in prior art, centrifugation, the steps such as hyperthermia drying, thereby quality product also will increase substantially, the metallic lithium that electrolysis goes out can directly meet the battery industry needs, and without again the lithium ingot being melted, after vacuum distilling, could use.
In the utility model, in electrolytic process, the chlorine sealing feeds back and no longer effluxes, and chlorine in fact becomes the carrier of delivery lithium ion, not only enhance productivity and the metallic lithium quality, and, avoided effluxing the required utility appliance of chlorine with and the impact, in addition, the techniques such as the relevant condensing crystal of saving, centrifugation, hyperthermia drying, the fusing of lithium ingot and vacuum distilling, significantly save operation, reduction equipment and production cost, for downstream process and product application have brought huge business opportunity.
Claims (3)
1. chlorine feeds back the fusion electrolysis lithium production device of internal recycle, comprise that reaction tank (13), decomposition chamber (1), high-temperature fusion chamber (11), iron cathode (3), graphite anode (6), chlorine feed back pipe (8) and recirculated air feeds back pipe (9), it is characterized in that: electrolyzer is installed in reaction tank (13), and this electrolyzer comprises decomposition chamber (1) and high-temperature fusion chamber (11) that are interconnected; Graphite anode (6) is installed in decomposition chamber (1), suit Porous Stainless Steel barrier film vestlet (5) outside graphite anode (6), Porous Stainless Steel barrier film vestlet (5) upper end passes reaction tank (13) top and connects chlorine extracts mouthful (4) out, iron cathode (3) is installed outside Porous Stainless Steel barrier film vestlet (5), in decomposition chamber (1) top iron cathode (3) outside, connects into recircilated air intake (2); Top, high-temperature fusion chamber (11) is installed recirculated air and is fed back pipe (9) and loading hopper (10), and titanium sieve plate (16) is installed at high-temperature fusion chamber (11) middle part, and high-temperature fusion chamber (11) bottom connects into chlorine and feeds back pipe (8); Recirculated air feeds back the upper vacuum pump (7) of installing of pipe (9), recirculated air feeds back the recircilated air intake (2) that pipe (9) is communicated with (11) top, high-temperature fusion chamber and decomposition chamber (1) top, and chlorine feedback pipe (8) is communicated with chlorine and extracts out bottom mouthful (4) and high-temperature fusion chamber (11).
2. chlorine as claimed in claim 1 feeds back the fusion electrolysis lithium production device of internal recycle, it is characterized in that, the interior install combustion device of reaction tank (13) (14), fuel gas inlet (15) is installed in the perforate of reaction tank (13) wall bottom, fuel gas inlet (15) connects burner (14), and exhanst gas outlet (12) is installed in the perforate of reaction tank (13) wall top; Taper collector groove (17) is arranged at bottom, high-temperature fusion chamber (11), and chlorine feeds back pipe (8) and connects into taper collector groove (17), and simultaneously, taper collector groove (17) bottom picks out discharge gate (18).
3. chlorine as claimed in claim 1 feeds back the fusion electrolysis lithium production device of internal recycle, it is characterized in that, high-temperature fusion chamber (11) wall is titanium vessels, and it is the nickel pipe that chlorine feeds back pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320231584.4U CN203373435U (en) | 2013-05-02 | 2013-05-02 | Device for preparing lithium by feeding back chlorine in internal circulating way and melting electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320231584.4U CN203373435U (en) | 2013-05-02 | 2013-05-02 | Device for preparing lithium by feeding back chlorine in internal circulating way and melting electrolysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203373435U true CN203373435U (en) | 2014-01-01 |
Family
ID=49835981
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320231584.4U Expired - Fee Related CN203373435U (en) | 2013-05-02 | 2013-05-02 | Device for preparing lithium by feeding back chlorine in internal circulating way and melting electrolysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135112A1 (en) * | 2018-12-28 | 2020-07-02 | Yi Cui | Electrolytic production of high-purity lithium from low-purity sources |
-
2013
- 2013-05-02 CN CN201320231584.4U patent/CN203373435U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135112A1 (en) * | 2018-12-28 | 2020-07-02 | Yi Cui | Electrolytic production of high-purity lithium from low-purity sources |
| CN113811640A (en) * | 2018-12-28 | 2021-12-17 | 崔屹 | Electrolytic production of high purity lithium from low purity feedstock |
| US11965261B2 (en) | 2018-12-28 | 2024-04-23 | Metagenesis, Ltd. | Electrolytic production of high-purity lithium from low-purity sources |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160502 |