CN102041391A - Method for separating and extracting pure aluminium from material containing metallic aluminium - Google Patents
Method for separating and extracting pure aluminium from material containing metallic aluminium Download PDFInfo
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- CN102041391A CN102041391A CN2010105960292A CN201010596029A CN102041391A CN 102041391 A CN102041391 A CN 102041391A CN 2010105960292 A CN2010105960292 A CN 2010105960292A CN 201010596029 A CN201010596029 A CN 201010596029A CN 102041391 A CN102041391 A CN 102041391A
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- aluminium
- aluminum chloride
- aluminiferous
- material containing
- chloride
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 76
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000004411 aluminium Substances 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 27
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 79
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- 229910018619 Si-Fe Inorganic materials 0.000 description 2
- 229910008289 Si—Fe Inorganic materials 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 102100021580 Active regulator of SIRT1 Human genes 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 101150026963 RPS19BP1 gene Proteins 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910007570 Zn-Al Inorganic materials 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method for separating and extracting pure aluminium from material containing metallic aluminium, comprising the following steps: preparing the material containing aluminium into a block; putting the blocky material in vacuum, controlling the pressure at 10-150Pa and the temperature at 1000-1500 DEG C, and keeping for 60-120min; sublimating aluminium chloride into gaseous aluminium chloride; introducing the gaseous aluminium chloride into heated material containing aluminium, and reacting for 30-120min; cooling to room temperature; obtaining pure aluminium in a condensing zone; and collecting solid aluminium chloride in an aluminium chloride desublimation zone. Compared with the prior art, the invention has the following advantages: (1) because of reacting in vacuum, the reaction temperature and energy consumption are low; (2) the obtained metallic aluminium has high purity, and the content of aluminium is above 98wt%; and (3) the recovery rate of aluminium chloride is above 80%, and aluminium chloride can be reused.
Description
Technical field
The present invention relates to a kind of from containing metal aluminium material the method for separation and Extraction fine aluminium, belong to the vacuum fire metallurgy technical field.
Background technology
Because the excellent properties of metallic aluminium, it has a wide range of applications in a lot of fields as important Industrial products.At present, industrial aluminum oxide refining and the aluminum electrolysis process two-step approach utilized produced metallic aluminium, though this method is ripe, the cost of producing aluminium is higher, and energy consumption is very huge.In addition, under the ever-increasing situation of continuous consumption, demand along with bauxite resource, the reclaiming technology of aluminiferous material has great importance for economizing on resources.Secondary aluminum is compared with primary aluminum, has the advantages such as discharging of saving resource, saving the energy and minimizing carbonic acid gas and other noxious emission.
General secondary aluminum technical process comprises: pre-treatment, fusing, refining and casting.Du Gang etc. in " aluminium slag recycling technology and economic analysis ", the Sunbo duty introduced several different methods and handled the aluminium slag in " the aluminium slag is handled and recovery technology ": the MRM method is to make aluminium liquid be deposited on device bottom the fusing of aluminium slag, adding can produce the flux of thermopositive reaction, make slag keep temperature required, and remaining aluminium slag also can further screen, pulverize, melt recovery aluminium; The IGDC method is to take out hot aluminium slag from smelting furnace, puts into the cooling slag pan, feeds nitrogen and prevents burning; The ECOCENT method is the slag that takes out from smelting furnace to be put into converter carry out reheat, and then in whizzer metal separation is come out; In addition, also have AROS method, SPM method, ALUKEC method and plasma method etc.Wang Yunchao has studied waste and old aluminium material recovery and reclaiming process in the abandoned car, and it by being equipped with different alloying elements, being made aluminium scrap aluminium alloy and continue to use.Publication number by applications such as Jia Zhongming is the patent of CN101358290A, a kind of method of extracting metallic aluminium from waste aluminum plastic film is disclosed, its main technical schemes be earlier with waste aluminum plastic film by after cleaning, drying, in container, utilize rosin as reductive agent, obtain metallic aluminium after the reaction; Employing flux-coverings such as Ding Long carry out remelting with waste foamed aluminium, have studied the refusion regeneration technology of waste foamed aluminium and have influenced the principal element of the rate of recovery.The publication number of applications such as Yang Bin is the patent of CN101476047A, discloses a kind of method for preparing metallic aluminium from aluminum-containing raw material, realizes extracting from low-grade aluminum-containing raw material the comprehensive utilization of metallic aluminium and metals resources such as aluminium, silicon and iron.Its main technical schemes is that the alloy that will contain 40～60%Al, 20～40%Si, 0.5～2%Fe can realize from AL-Si-Fe alloy that by the leaching of metallic zinc liquation effective separation of aluminium silicon obtains Zn-Al alloy and Zn-Si-Fe alloy, effective separation that alloy carries out vacuum distilling realization aluminium zinc and zinc ferrosilicon obtains metallic aluminium and metallic zinc and ferro-silicon, and metallic zinc liquid can return zinc liquid leaching operation and recycle.The publication number of applications such as Yu Fushou is the patent of CN101121964, discloses a kind of method of extracting aluminium from aluminium plastic composite material.Its main technical schemes is to mix with organic solvent through after the pyroprocessing by the fragment with aluminium plastic composite material, makes dissolving plastic in the aluminium plastic composite material in organic solvent, and the last again aluminium foil that reclaims the pulverizing forms aluminium powder and be used.
Above-mentioned aluminium reclaim with renovation process in, have usually that quality product is not high, the kind instability of secondary aluminium alloy, melting equipment is complicated and need problem such as additive.
Summary of the invention
The object of the present invention is to provide the low method of separation and Extraction fine aluminium from containing metal aluminium material of a kind of height of purifying, energy consumption, through following each step:
A. aluminiferous material is made piece, lumpy material is placed under the vacuum condition, control pressure is 10～150Pa, makes temperature reach 1000～1500 ℃, keeps 60～120min;
B. get aluminum chloride, and the mass ratio of aluminum content and aluminum chloride is 1: 2.5～1: 5 in the aluminiferous material, the aluminum chloride distillation is gaseous state;
C. the gaseous aluminum chloride among the step B is fed the aluminiferous material after the heating in the steps A, keeping temperature is 1000～1500 ℃, and the reaction times is 30～120min;
D. cooling obtains fine aluminium at 100～600 ℃ condensing zones, and collects solid-state aluminum chloride in 50～100 ℃ the aluminum chloride district that sublimates.
Described aluminiferous material is made the piece of Φ 10mm * 5mm～Φ 20mm * 30mm.
Described aluminiferous material is aluminiferous alloy or industrial residue.
Containing the aluminium mass percent in described aluminiferous alloy or the industrial residue is 20%～50%.
The present invention does not add any reagent, when vacuum condition, high temperature, aluminium and aluminum chloride gas are reacted, can improve the aluminium reclaiming production efficiency, have energy consumption low, do not produce obnoxious flavour and greenhouse gases, flow process is short, advantages such as equipment is simple, and raw material adopts aluminiferous alloy and industrial residue, thereby has enlarged the scope of resource that aluminium is produced again.Present technique is compared the advantage that is had with existing patent of invention:
1) carry out under vacuum condition, temperature of reaction is low, and energy consumption is low;
2) gained metallic aluminium purity height, the content of aluminium reaches more than the 98wt%;
3) the aluminum chloride rate of recovery reaches more than 80%, and recycling.
Embodiment:
Further specify by the following examples:
Embodiment 1
A. will contain the aluminium mass percent and be 20% aluminium-containing alloy 30g, and make the piece of Φ 15mm * 10mm, lumpy material is placed under the vacuum condition, control pressure is 10Pa, makes temperature reach 1000 ℃, keeps 120min;
B. get aluminum chloride 15g, the aluminum chloride distillation is gaseous state;
C. the gaseous aluminum chloride among the step B is fed the aluminiferous material after the heating in the steps A, keeping temperature is 1000 ℃, and the reaction times is 30min;
D. cooling obtains fine aluminium at 300 ℃ condensing zones, and collects solid-state aluminum chloride in 100 ℃ the aluminum chloride district that sublimates.
Wherein the purity of resulting metallic aluminium reaches 99%, and the aluminum chloride rate of recovery reaches 86%.
Embodiment 2
A. will contain the aluminium mass percent and be 40% contain aluminium industrial residue 25g, make the piece of Φ 20mm * 30mm, lumpy material is placed under the vacuum condition, control pressure is 120Pa, makes temperature reach 1300 ℃, keeps 90min;
B. get aluminum chloride 40g, the aluminum chloride distillation is gaseous state;
C. the gaseous aluminum chloride among the step B is fed the aluminiferous material after the heating in the steps A, keeping temperature is 1300 ℃, and the reaction times is 90min;
D. be cooled to room temperature, obtain fine aluminium, and collect solid-state aluminum chloride in 80 ℃ the aluminum chloride district that sublimates at 600 ℃ condensing zones.
Wherein the purity of resulting metallic aluminium reaches 98%, and the aluminum chloride rate of recovery reaches 80%.
Embodiment 3
A. will contain the aluminium mass percent and be 50% contain aluminium industrial residue 20g, make the piece of Φ 10mm * 5mm, lumpy material is placed under the vacuum condition, control pressure is 150Pa, makes temperature reach 1500 ℃, keeps 60min;
B. get aluminum chloride 50g, the aluminum chloride distillation is gaseous state;
C. the gaseous aluminum chloride among the step B is fed the aluminiferous material after the heating in the steps A, keeping temperature is 1500 ℃, and the reaction times is 120min;
D. be cooled to room temperature, obtain fine aluminium, and collect solid-state aluminum chloride in 50 ℃ the aluminum chloride district that sublimates at 100 ℃ condensing zones.
Wherein the purity of resulting metallic aluminium reaches 98%, and the aluminum chloride rate of recovery reaches 80%.
Claims (4)
1. the method for a separation and Extraction fine aluminium from containing metal aluminium material is characterized in that through following each step:
A. aluminiferous material is made piece, lumpy material is placed under the vacuum condition, control pressure is 10～150Pa, makes temperature reach 1000～1500 ℃, keeps 60～120min;
B. get aluminum chloride, and the mass ratio of aluminum content and aluminum chloride is 1: 2.5～1: 5 in the aluminiferous material, the aluminum chloride distillation is gaseous state;
C. the gaseous aluminum chloride among the step B is fed the aluminiferous material after the heating in the steps A, keeping temperature is 1000～1500 ℃, and the reaction times is 30～120min;
D. be cooled to room temperature, obtain fine aluminium, and collect solid-state aluminum chloride in 50～100 ℃ the aluminum chloride district that sublimates at 100～600 ℃ condensing zones.
2. method according to claim 1 is characterized in that: described aluminiferous material is made the piece of Φ 10mm * 5mm～Φ 20mm * 30mm.
3. method according to claim 1 and 2 is characterized in that: described aluminiferous material is aluminiferous alloy or industrial residue.
4. method according to claim 3 is characterized in that: containing the aluminium mass percent in described aluminiferous alloy or the industrial residue is 20%～50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105960292A CN102041391A (en) | 2010-12-20 | 2010-12-20 | Method for separating and extracting pure aluminium from material containing metallic aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105960292A CN102041391A (en) | 2010-12-20 | 2010-12-20 | Method for separating and extracting pure aluminium from material containing metallic aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102041391A true CN102041391A (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105960292A Pending CN102041391A (en) | 2010-12-20 | 2010-12-20 | Method for separating and extracting pure aluminium from material containing metallic aluminium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745816A (en) * | 2015-03-24 | 2015-07-01 | 昆明理工大学 | Method for preparing metallic aluminum by means of chlorination reduction of aluminum nitride |
| CN106756068A (en) * | 2016-12-16 | 2017-05-31 | 中北大学 | A kind of method that aluminium is extracted in the ash from aluminium |
| CN107287423A (en) * | 2017-06-22 | 2017-10-24 | 神雾科技集团股份有限公司 | A kind of continuous aluminium metallurgy device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660059A (en) * | 2009-09-29 | 2010-03-03 | 昆明理工大学 | Method for extracting metallic aluminium from aluminum oxide by vacuum carbothermal reduction |
-
2010
- 2010-12-20 CN CN2010105960292A patent/CN102041391A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660059A (en) * | 2009-09-29 | 2010-03-03 | 昆明理工大学 | Method for extracting metallic aluminium from aluminum oxide by vacuum carbothermal reduction |
Non-Patent Citations (1)
| Title |
|---|
| 《专业轻金属冶金学》 19600131 东北工学院有色系轻金属冶炼教研室 低价化合物蒸馏法 第346页最后9行 1-4 , * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745816A (en) * | 2015-03-24 | 2015-07-01 | 昆明理工大学 | Method for preparing metallic aluminum by means of chlorination reduction of aluminum nitride |
| CN104745816B (en) * | 2015-03-24 | 2016-11-30 | 昆明理工大学 | A kind of method that metallic aluminium is prepared in aluminium nitride chlorination reduction |
| CN106756068A (en) * | 2016-12-16 | 2017-05-31 | 中北大学 | A kind of method that aluminium is extracted in the ash from aluminium |
| CN106756068B (en) * | 2016-12-16 | 2018-08-07 | 中北大学 | A method of extracting aluminium from aluminium ash |
| CN107287423A (en) * | 2017-06-22 | 2017-10-24 | 神雾科技集团股份有限公司 | A kind of continuous aluminium metallurgy device |
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Application publication date: 20110504 |