CN102277505B - Method for purifying high-pure aluminum by directional solidification and smelting furnace used in same - Google Patents
Method for purifying high-pure aluminum by directional solidification and smelting furnace used in same Download PDFInfo
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- CN102277505B CN102277505B CN2011102249388A CN201110224938A CN102277505B CN 102277505 B CN102277505 B CN 102277505B CN 2011102249388 A CN2011102249388 A CN 2011102249388A CN 201110224938 A CN201110224938 A CN 201110224938A CN 102277505 B CN102277505 B CN 102277505B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/045—Directionally solidified castings
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B2014/002—Smelting process, e.g. sequences to melt a specific material
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- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
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Abstract
The invention discloses a method for purifying high-pure aluminum by directional solidification and a smelting furnace used in the same. The method for purifying high-pure aluminium by directional solidification comprises the following steps: 1. sorting; 2. smelting; 3. solidifying for purifying; and 4. obtaining a finished product. The smelting furnace comprises a furnace shell, a heating device, a container, a stirring device and a cooling device, wherein the container is fixedly arranged in the furnace shell; at least one heating device is fixedly installed at interval from top to bottom between the furnace shell and the container; a furnace bottom below the container is provided with the cooling device; and a furnace bottom temperature measuring device is arranged between the cooling device and the furnace shell. The method disclosed by the invention has the advantages of low energy consumption, large treatment capacity, high efficiency and high product purity and can be used for producing 5N-6N high-purity aluminum in a large batch. The smelting furnace disclosed by the invention has reasonable and compact structure and is convenient to use. The heating device, the furnace bottom cooling device and the furnace bottom temperature measuring device are cooperated to greatly improve working efficiency so as to improve the quality of the purified high-purity aluminum.
Description
Technical field
The present invention relates to rafifinal and smelt the purifying plant technical field, is a kind of method and smelting furnace thereof of directional freeze purification rafifinal, particularly method and the smelting furnace thereof of the rafifinal of a kind of directional freeze purification 5N to 6N.
Background technology
In electronics industry, especially need to use the rafifinal of 5N to 6N in high-tech sectors such as photoelectron storage media, semiconducter device, hyperconductive cables.The purity method for expressing of rafifinal has two kinds, and a kind of is directly to write out aluminium content or the industry standard trade mark, such as 99.95%, 99.99%, AL99.993A% etc.; A kind of is with " numeral+N " or " numeral+N+ numeral " expression, represents that such as 4N 99.99%, 4N6 represents 99.996% etc.General when concrete detection elements is not described, aluminium content is as the criterion with the regulation in the China YouSe metal industry standard " remelting with refined aluminium ingot YS/T665 to 2009 ".Countries in the world adopt three layers of liquid electrolytic refining process, segregation principle method of purification, organic solution electrolytic process etc. to prepare the high-purity or rafifinal of various purity mostly at present.Three layers of advanced liquid electrolytic process are extracted the purity of aluminium substantially between 4N to 4N8, but power consumption is generally more than 13000kwh/t, about 4 to 5 times of segregation method, cost is very difficult, produces obnoxious flavour and the waste electrolyte serious environment pollutions such as hydrogen fluoride, carbon monoxide, sulfurous gas simultaneously in electrolytic process; The organic solution electrolytic process yields poorly because energy consumption is high, and complex process generally is used for producing on a small quantity of the above purity ultra-pure aluminum of 7N, is not suitable for suitability for industrialized production.Segregation principle method of purification belongs to physical purification method, can be used for preparing the rafifinal of 3N5% to 6N% purity according to the difference of raw material, technology and equipment, has that energy consumption is low, labour intensity is little, pollutes without chemical reaction, uses more and more extensive.
The segregation principle method of purification of aluminium has multiple implementation, mainly contains at present fractional crystallisation method, zone melting method, directional solidification method.The fractional crystallisation method is in a large number industrialization use abroad, refining effect depends on the purity of primary aluminum, the aluminum feedstock of normal operation 99.5% to 99.95% can obtain the rafifinal of 3N5 to 4N5 through purifying, but production efficiency is low, and there is pollution in residual aluminum liquid to the aluminium of having purified, technology and equipment is complicated, and refining effect is limited; Zone melting method can obtain the rafifinal of 5N5 to 6N, is mainly used in three-layer liquid method or other segregation method rafifinals are further purified, and equipment is complicated, inefficiency, and energy consumption is higher, is not suitable for suitability for industrialized production.Directional solidification method has that energy consumption is low, Purification of Aluminum and the higher advantage of casting yield, is suitable for producing in enormous quantities the rafifinal of 4N to 6N, and equipment and process is also relatively simple, is the main researchdevelopment direction of rafifinal purification techniques.Directional solidification method can also be divided into cooling tube freezing method, bottom coohng method, sidewall method of cooling, top lifting freezing method, lateral solidification method etc.Technical information introduction to above-mentioned directional solidification method has been arranged in the existing open source literature, but the element number of its detection is less, quality level is low, and complex process, and size is little, yields poorly, and is difficult to realize scale of mass production.At present, the Key technique problem that uses directional solidification method to produce rafifinal is how to improve, optimize crystallization mode, and improving the quality of products keeps preferably refining effect and higher production efficiency simultaneously.Use directional solidification method to realize that processing method and the equipment of batch production 5N to 6N rafifinal all belong to secret of the trade, have no relevant concrete report both at home and abroad in industry.
Summary of the invention
The invention provides a kind of method and smelting furnace thereof of directional freeze purification rafifinal, overcome the deficiency of above-mentioned prior art, and can access the rafifinal of 5N to 6N, the problems such as effectively solve the refining effect of rafifinal product and efficient is low, energy consumption is high, cost is large, it has the advantage that energy consumption is low, treatment capacity is large, efficient is high, product purity is high, can be used for producing in enormous quantities rafifinal.
One of technical scheme of the present invention realizes by following measures: a kind of method of directional freeze purification rafifinal, and it carries out according to the following steps:
The first step is selected materials, and selects the aluminum feedstock of purity 4N to 5N, and the physics cleaning is carried out on the surface of above-mentioned aluminum feedstock;
Second step, melting is put into smelting furnace purification container with ready aluminum feedstock in the first step, and aluminum feedstock is heated to 670 ℃ to 730 ℃, makes aluminum feedstock get whole fusings, obtains aluminium liquid;
The 3rd step, solidify purification, the aluminium liquid of second step gained was left standstill under 670 ℃ to 730 ℃ 7 minutes to 80 minutes; Then to implementing cooling at the bottom of the smelting furnace, aluminium liquid is implemented heating, make the temperature of aluminium liquid upwards be controlled in 660 ℃ to the 700 ℃ scopes from low to high from crystal plane, from the furnace bottom crystallization that makes progress, obtain the crystallization ingot after 1 hour to 8 hours, in the crystallisation process stirring rake pre-heating drying is placed on enforcement Stirring in the aluminium liquid or/and implement induction stirring;
The 4th step obtained finished product, according to the difference of purity demand, removed 15% to 70% part of thickness from the afterbody of crystallization ingot, can access the rafifinal of 5N to 6N.
The below is the further optimization and/or improvements to one of foregoing invention technical scheme:
The stirring rake of above-mentioned agitator stirs by rotation mode.
The stirring rake of above-mentioned agitator and the distance between the freezing interface are controlled at 10 millimeters to 50 millimeters; Remove the oxide film on rafifinal raw material surface after the rafifinal raw material physics cleaning in the above-mentioned the first step; Above-mentioned heating is undertaken by heating unit; Above-mentioned stirring also can be carried out induction stirring by electromagnetic mixing apparatus.
The present invention has adopted subsection heating device and refrigerating unit in solidifying purification process, the temperature of place, control freezing interface melt.
Difference according to the crystallizing layer height, by heating unit and refrigerating unit the temperature of aluminium liquid is adjusted, make the temperature of aluminium liquid upwards be controlled in 660 ℃ to the 700 ℃ scopes from low to high from crystal plane, simultaneously aluminium liquid is implemented mechanical stirring or/and induction stirring, to reduce the thickness of crystalizing interface place impurity enriched layer, the impurity that guarantees the crystalizing interface place can leave crystalizing interface by stirring, is diffused into the top of aluminium liquid, and the purity of solidification layer is improved.
In solidifying purification process, along with the rising of solidification and crystallization face, control the temperature of crystallization control face and aluminium liquid by near the temperature of the heating zone crystal plane.After crystallization was finished, the part of removing off analysis from the afterbody of gained crystallization ingot just can obtain the rafifinal of required purity.
Two of technical scheme of the present invention realizes by following measures: a kind of smelting furnace of the method for above-mentioned directional freeze purification rafifinal, and it comprises furnace shell, heating unit, container, whipping appts and refrigerating unit; Be installed with container in furnace shell, the interval is installed with many one heating units from top to bottom between furnace shell and container; Furnace bottom place below container is equipped with refrigerating unit, and the furnace bottom temperature measuring equipment is installed between refrigerating unit and furnace shell.
The below is two further optimization and/or improvements to the foregoing invention technical scheme:
Above-mentioned whipping appts adopts mechanical stirring device or/and electromagnetic mixing apparatus; Wherein, the upper end of mechanical stirring device is fixedly mounted on the support of whipping appts, and the stirring rake of mechanical stirring device lower end is positioned at container.
Be installed with thermal insulation layer in above-mentioned furnace shell inboard.
In the outside of above-mentioned refrigerating unit the furnace bottom temperature measuring equipment is installed.
Above-mentioned heating unit is electric heater unit.
Between above-mentioned thermal insulation layer and heating unit electromagnetic mixing apparatus is installed, heating unit and electromagnetic mixing apparatus shift to install.
The inventive method has the advantage that energy consumption is low, treatment capacity is large, efficient is high, product purity is high, can be used for producing in enormous quantities rafifinal.Smelting furnace reasonable and compact in structure of the present invention, easy to use, it is used by heating unit, bottom cooler, furnace bottom temperature measuring equipment, can greatly increase work efficiency, thereby improve the quality of the rafifinal out of purifying.
Description of drawings
Accompanying drawing 1 is looked the sectional structure synoptic diagram for the master of the most preferred embodiment of the smelting furnace of directional freeze purification rafifinal of the present invention.
Coding in the accompanying drawing is respectively: 1 is furnace shell, and 2 is heating unit, and 3 is container, and 4 is thermal insulation layer, and 5 is mechanical stirring device, and 6 is refrigerating unit, and 7 is the stirring rake of mechanical stirring device, and 8 is electromagnetic mixing apparatus.
For convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
Embodiment
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.
The invention will be further described below in conjunction with embodiment:
Embodiment 1, and the method for this directional freeze purification rafifinal is carried out according to the following steps:
The first step is selected materials, and selects the aluminum feedstock of purity 4N to 4N5, and the physics cleaning is carried out on the surface of above-mentioned aluminum feedstock;
Second step, melting is put into smelting furnace purification container with ready aluminum feedstock in the first step, and aluminum feedstock is heated to 670 ℃ to 730 ℃, makes aluminum feedstock get whole fusings, obtains aluminium liquid;
The 3rd step, solidify purification, the aluminium liquid of second step gained was left standstill under 670 ℃ to 730 ℃ 7 minutes to 80 minutes; Then to implementing cooling at the bottom of the smelting furnace, aluminium liquid is implemented heating, make the temperature of aluminium liquid upwards be controlled in 660 ℃ to the 700 ℃ scopes from low to high from crystal plane, from the furnace bottom crystallization that makes progress, obtain the crystallization ingot after 1 hour to 8 hours, in the crystallisation process stirring rake pre-heating drying is placed on enforcement Stirring in the aluminium liquid or/and implement induction stirring;
The 4th step obtained finished product, according to the difference of purity demand, removed 15% to 70% part of thickness from the afterbody of crystallization ingot, can access the rafifinal of 5N to 5N5.
Embodiment 2, and the method for this directional freeze purification rafifinal is carried out according to the following steps:
The first step is selected materials, and selects the aluminum feedstock of purity 4N5 to 5N, and the physics cleaning is carried out on the surface of above-mentioned aluminum feedstock;
Second step, melting is put into smelting furnace purification container with ready aluminum feedstock in the first step, and aluminum feedstock is heated to 670 ℃ or 730 ℃, makes aluminum feedstock get whole fusings, obtains aluminium liquid;
The 3rd step, solidify purification, the aluminium liquid of second step gained was left standstill under 670 ℃ or 730 ℃ 7 minutes or 80 minutes; Then to implementing cooling at the bottom of the smelting furnace, aluminium liquid is implemented heating, in the temperature that makes aluminium liquid upwards is controlled at 660 ℃ or 700 ℃ of scopes from low to high from crystal plane, from the furnace bottom crystallization that makes progress, obtain the crystallization ingot after 1 hour or 8 hours, in the crystallisation process stirring rake pre-heating drying is placed on enforcement Stirring in the aluminium liquid or/and implement induction stirring;
The 4th step obtained finished product, according to the difference of purity demand, removed 15% or 70% part of thickness from the afterbody of crystallization ingot, can access the rafifinal of 5N5 or 6N.
Embodiment 3, and be with the difference of embodiment 1 and embodiment 2: the stirring rake of the agitator of embodiment 3 stirs by rotation mode.
Embodiment 4, and the difference of embodiment 1 to embodiment 3 is: the stirring rake of the agitator of embodiment 4 and the distance between the freezing interface are controlled at 10 millimeters to 50 millimeters.
Embodiment 5, and the difference of embodiment 1 to embodiment 3 is: the stirring rake of the agitator of embodiment 5 and the distance between the freezing interface are controlled at 10 millimeters or 50 millimeters.
Embodiment 6, are with the difference of embodiment 1 to embodiment 5: the oxide film of removing rafifinal raw material surface after the rafifinal raw material physics cleaning in the first step of embodiment 6.
Embodiment 7, and be with the difference of embodiment 1 to embodiment 6: the heating of embodiment 7 is undertaken by heating unit.
Embodiment 8, and be with the difference of embodiment 1 to embodiment 7: the stirring of embodiment 8 is carried out induction stirring by electromagnetic mixing apparatus.
The aluminium ingot of above-described embodiment 1 to embodiment 2 gained rafifinal detected with the GDMS Analytical equipment learn that its purity reaches 5N to 6N; If the data that detect do not reach above-mentioned purity, then will this underproof aluminium ingot again from the first step of above-described embodiment 1 or embodiment 2 select materials beginning again by the first step select materials, purifications solidified in second step melting, the 3rd step, the 4th step obtained finished product and operate, until the data of detection reach above-mentioned purity requirement.
Embodiment 9, and as shown in Figure 1, the smelting furnace that should be used for the method for above-mentioned directional freeze purification rafifinal comprises furnace shell 1, heating unit 2, container 3, whipping appts and refrigerating unit 6; Be installed with container 3 in furnace shell 1, the interval is installed with many one heating units from top to bottom between furnace shell 1 and container 3; Furnace bottom place below container 3 is equipped with refrigerating unit 6, between refrigerating unit 6 and furnace shell 1 the furnace bottom temperature measuring equipment is installed.Wherein, heating unit 2, refrigerating unit 6, mechanical stirring device 5, furnace bottom temperature measuring equipment all adopt existing known technique device.
Can be according to actual needs, the smelting furnace of the method for above-mentioned directional freeze purification rafifinal is made further optimization and/or improvements:
As shown in Figure 1, above-mentioned whipping appts can adopt mechanical stirring device 5 or/and electromagnetic mixing apparatus; Wherein, the upper end of mechanical stirring device 5 is fixedly mounted on the support of mechanical stirring device 5, and the stirring rake 7 of mechanical stirring device 5 lower ends is positioned at container 3.
As shown in Figure 1, in order to increase heat retaining property, be installed with thermal insulation layer 4 in furnace shell 1 inboard.
As shown in Figure 1, according to actual needs, the outside of refrigerating unit 6 is equipped with the furnace bottom temperature measuring equipment.
As shown in Figure 1, according to actual needs, heating unit 2 is electric heater unit.
As shown in Figure 1, for the temperature that makes solution is even, between thermal insulation layer 4 and heating unit 2 electromagnetic mixing apparatus 8 is installed, heating unit 2 shifts to install with electromagnetic mixing apparatus 8.
Above technical characterictic has consisted of most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
Claims (10)
1. the method for a directional freeze purification rafifinal is characterized in that carrying out according to the following steps:
The first step is selected materials, and selects the aluminum feedstock of purity 4N to 5N, and the physics cleaning is carried out on the surface of above-mentioned aluminum feedstock;
Second step, melting is put into smelting furnace purification container with ready aluminum feedstock in the first step, and aluminum feedstock is heated to 670 ℃ to 730 ℃, and aluminum feedstock is all melted, and obtains aluminium liquid;
The 3rd step, solidify purification, the aluminium liquid of second step gained was left standstill under 670 ℃ to 730 ℃ 7 minutes to 80 minutes; Then to implementing cooling at the bottom of the smelting furnace, aluminium liquid is implemented heating, make the temperature of aluminium liquid upwards be controlled in 660 ℃ to the 700 ℃ scopes from low to high from crystal plane, from the furnace bottom crystallization that makes progress, obtain the crystallization ingot in 1 hour to 8 hours, and in the crystallisation process stirring rake pre-heating drying was placed on enforcement Stirring in the aluminium liquid or/and implement induction stirring;
The 4th step obtained finished product, according to the difference of purity demand, removed 15% to 70% part of thickness from the afterbody of crystallization ingot, obtained the rafifinal of required purity.
2. the method for directional freeze purification rafifinal according to claim 1 is characterized in that the rear oxide film of removing rafifinal raw material surface of rafifinal raw material physics cleaning in the first step.
3. the method for directional freeze purification rafifinal according to claim 1 and 2 is characterized in that stirring rake and the distance between the freezing interface of agitator in the 3rd step is controlled at 10 millimeters to 50 millimeters.
4. the smelting furnace for the method for the directional freeze purification rafifinal of the described any claim of claims 1 to 3 is characterized in that comprising furnace shell, heating unit, container, whipping appts and refrigerating unit; Be installed with container in furnace shell, the interval is installed with and is no less than one heating unit from top to bottom between furnace shell and container; Furnace bottom place below container is equipped with refrigerating unit, and the furnace bottom temperature measuring equipment is installed between refrigerating unit and furnace shell.
5. the smelting furnace of the method for directional freeze purification rafifinal according to claim 4 is characterized in that whipping appts adopts mechanical stirring device or/and electromagnetic mixing apparatus; Wherein, the upper end of mechanical stirring device is fixedly mounted on the support of whipping appts, and the stirring rake of mechanical stirring device lower end is positioned at container.
6. according to claim 4 or the smelting furnace of the method for 5 described directional freeze purification rafifinals, it is characterized in that the furnace shell inboard is installed with thermal insulation layer.
7. the smelting furnace of the method for directional freeze purification rafifinal according to claim 6 is characterized in that the outside of refrigerating unit is equipped with the furnace bottom temperature measuring equipment.
8. the smelting furnace of the method for directional freeze purification rafifinal according to claim 7 is characterized in that heating unit is electric heater unit.
9. according to claim 4 or the smelting furnace of the method for 5 described directional freeze purification rafifinals, it is characterized in that between thermal insulation layer and the heating unit electromagnetic mixing apparatus being installed, heating unit and electromagnetic mixing apparatus shift to install.
10. the smelting furnace of the method for directional freeze purification rafifinal according to claim 8 is characterized in that between thermal insulation layer and the heating unit electromagnetic mixing apparatus being installed, and heating unit and electromagnetic mixing apparatus shift to install.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102249388A CN102277505B (en) | 2011-08-08 | 2011-08-08 | Method for purifying high-pure aluminum by directional solidification and smelting furnace used in same |
| EP11870784.3A EP2743359A4 (en) | 2011-08-08 | 2011-12-14 | Method for purifying high-purity aluminium by directional solidification and smelting furnace therefor |
| PCT/CN2011/083992 WO2013020339A1 (en) | 2011-08-08 | 2011-12-14 | Method for purifying high-purity aluminium by directional solidification and smelting furnace therefor |
| JP2014524249A JP2014527577A (en) | 2011-08-08 | 2011-12-14 | Method for preparing high purity aluminum by directional solidification and blast furnace therefor |
| KR1020137017870A KR20130130014A (en) | 2011-08-08 | 2011-12-14 | Method for purifying high-purity aluminium by directional solidification and smelting furnace therefor |
| US13/977,582 US20140202653A1 (en) | 2011-08-08 | 2011-12-14 | Method for purifying high-purity aluminium by directional solidification and smelting furnace therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102249388A CN102277505B (en) | 2011-08-08 | 2011-08-08 | Method for purifying high-pure aluminum by directional solidification and smelting furnace used in same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102277505A CN102277505A (en) | 2011-12-14 |
| CN102277505B true CN102277505B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102249388A Active CN102277505B (en) | 2011-08-08 | 2011-08-08 | Method for purifying high-pure aluminum by directional solidification and smelting furnace used in same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20140202653A1 (en) |
| EP (1) | EP2743359A4 (en) |
| JP (1) | JP2014527577A (en) |
| KR (1) | KR20130130014A (en) |
| CN (1) | CN102277505B (en) |
| WO (1) | WO2013020339A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864314B (en) * | 2012-10-21 | 2015-10-21 | 昆明冶金研究院 | The method and apparatus of a kind of continuous segregation purification refined aluminium and rafifinal |
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| CN102534246B (en) * | 2011-12-27 | 2014-04-16 | 昆明冶金研究院 | Preparation method of high-purity aluminum |
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| CN104004925B (en) * | 2014-06-11 | 2016-01-06 | 李霞 | A kind of rafifinal continuously purification device |
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| CN114959284A (en) * | 2022-01-24 | 2022-08-30 | 昆明理工大学 | Preparation method and preparation device of high-purity aluminum |
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| CN118028620B (en) * | 2024-02-20 | 2024-07-09 | 南通泰德电子材料科技有限公司 | Method for extracting ultrahigh-purity aluminum by directional solidification under electromagnetic stirring |
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| CN101748291A (en) * | 2010-01-28 | 2010-06-23 | 上海交通大学 | High-purity aluminum purification device based on segregation method |
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| CN101463428B (en) * | 2009-01-08 | 2010-06-30 | 上海交通大学 | High purity aluminum ultrasonic purification method |
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- 2011-08-08 CN CN2011102249388A patent/CN102277505B/en active Active
- 2011-12-14 EP EP11870784.3A patent/EP2743359A4/en not_active Withdrawn
- 2011-12-14 WO PCT/CN2011/083992 patent/WO2013020339A1/en active Application Filing
- 2011-12-14 KR KR1020137017870A patent/KR20130130014A/en not_active Application Discontinuation
- 2011-12-14 US US13/977,582 patent/US20140202653A1/en not_active Abandoned
- 2011-12-14 JP JP2014524249A patent/JP2014527577A/en active Pending
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| CN101696472A (en) * | 2009-11-13 | 2010-04-21 | 湖南希源新材料有限公司 | Purification method of ultra-pure aluminum |
| CN101748291A (en) * | 2010-01-28 | 2010-06-23 | 上海交通大学 | High-purity aluminum purification device based on segregation method |
| CN202201949U (en) * | 2011-08-08 | 2012-04-25 | 新疆众和股份有限公司 | Smelting furnace for directionally solidifying and purifying high-purity aluminium |
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| CN102864314B (en) * | 2012-10-21 | 2015-10-21 | 昆明冶金研究院 | The method and apparatus of a kind of continuous segregation purification refined aluminium and rafifinal |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140202653A1 (en) | 2014-07-24 |
| CN102277505A (en) | 2011-12-14 |
| EP2743359A1 (en) | 2014-06-18 |
| KR20130130014A (en) | 2013-11-29 |
| JP2014527577A (en) | 2014-10-16 |
| WO2013020339A1 (en) | 2013-02-14 |
| EP2743359A4 (en) | 2015-01-28 |
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