CN114933321A - Formula and preparation method of sodium potassium aluminum fluoride - Google Patents
Formula and preparation method of sodium potassium aluminum fluoride Download PDFInfo
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- CN114933321A CN114933321A CN202210569606.1A CN202210569606A CN114933321A CN 114933321 A CN114933321 A CN 114933321A CN 202210569606 A CN202210569606 A CN 202210569606A CN 114933321 A CN114933321 A CN 114933321A
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- Prior art keywords
- potassium
- sodium
- aluminum fluoride
- alf
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- NGCWWPZTKGWTMB-UHFFFAOYSA-I [F-].[F-].[F-].[F-].[F-].[Na+].[Al+3].[K+] Chemical compound [F-].[F-].[F-].[F-].[F-].[Na+].[Al+3].[K+] NGCWWPZTKGWTMB-UHFFFAOYSA-I 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims description 10
- 238000009472 formulation Methods 0.000 title claims description 3
- 239000011734 sodium Substances 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 14
- 238000005260 corrosion Methods 0.000 claims abstract description 14
- 239000011591 potassium Substances 0.000 claims abstract description 14
- SKFYTVYMYJCRET-UHFFFAOYSA-J potassium;tetrafluoroalumanuide Chemical compound [F-].[F-].[F-].[F-].[Al+3].[K+] SKFYTVYMYJCRET-UHFFFAOYSA-J 0.000 claims abstract description 13
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011819 refractory material Substances 0.000 claims abstract description 9
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000002035 prolonged effect Effects 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 229910001415 sodium ion Inorganic materials 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 230000006872 improvement Effects 0.000 claims abstract description 5
- 150000002500 ions Chemical class 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims 4
- 229910001388 sodium aluminate Inorganic materials 0.000 claims 4
- GEHLLHAUIUKKFH-UHFFFAOYSA-L [F-].[F-].[Na+].[K+] Chemical compound [F-].[F-].[Na+].[K+] GEHLLHAUIUKKFH-UHFFFAOYSA-L 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- ZXRRHFSTAFVGOC-UHFFFAOYSA-N [AlH3].[K] Chemical compound [AlH3].[K] ZXRRHFSTAFVGOC-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- -1 potassium chlorofluoride Chemical compound 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention relates to the technical field of potassium sodium aluminum fluoride, and discloses a formula of potassium sodium aluminum fluoride, which comprises the following raw materials in parts by weight: including Na 3 AlF 6 、KAlF 4 And potassium fluoroaluminate. The formula of the sodium potassium aluminum fluoride is characterized in that a part of NaF or Na is added according to the content of previously detected F, Al and K while potassium aluminum fluoride is ground through a production process route 3 AlF 6 The proportion of Al, K and Na of the product is improved, the melting point of the product is improved, the corrosion effect on a melting vessel caused by the simple improvement of the content of K is reduced, the addition of sodium ions enables the melting curve to be mildly raised, meanwhile, a temperature-resistant crucible or a sagger of all alumina products or a high-aluminum lining of a medium-high frequency furnace is protected, the service life and the frequency are prolonged, the melted mixed substance slag is easier to separate, and the corrosion and the damage to a refractory material caused by the increase of the content of K ions are reduced.
Description
Technical Field
The invention relates to the technical field of potassium sodium aluminum fluoride, in particular to a formula of potassium sodium aluminum fluoride and a preparation method thereof.
Background
Potassium aluminum fluoride sodium Chinese synonym is potassium fluochloride; (OC-6-11) -potassium hexafluoroaluminate (3-); potassium aluminum fluoride, (OC-6-11) -potassium hexafluoroaluminate, potassium chlorofluoride; potassium aluminum is dissolved; (OC-6-11) -potassium hexafluoroaluminate; potassium aluminum fluoride; potassium fluoroaluminate; elpasolite, potassium fluoroaluminate, white or light grey powders, slightly soluble in water, for use as pesticides, also in the ceramics, glass industry and in aluminium welding; ceramic industry, glass industry; insecticide, ceramic, glass industries and welding industries.
At present, the application range of the aluminum potassium fluoride is very wide, and the special metal fluxing is also performed when the aluminum potassium fluoride is used, particularly the fluxing of the precious metal with special requirements on the melting point and the anode material refining for the lithium battery does not improve the corrosion resistance of the product when the aluminum potassium fluoride is used, and the limitation is large.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a formula of sodium potassium aluminum fluoride and a preparation method thereof, which have the advantages of corrosion resistance and the like, and solves the problems that the application range of the existing potassium aluminum fluoride is very wide, the fluxing of special metals is realized during the use, particularly the fluxing of refining of precious metals with special requirements on melting points and anode materials for lithium batteries is not required to improve the corrosion resistance of products during the use, and the limitation is large.
(II) technical scheme
In order to achieve the purpose of corrosion resistance, the invention provides the following technical scheme: the formula of the sodium potassium aluminum fluoride comprises the following raw materials in parts by weight: na (Na) 3 AlF 6 、KAlF 4 And potassium fluoroaluminate.
Preferably, the Na is 3 AlF 6 、KAlF 4 Is thirty percent.
Another technical problem to be solved by the present invention is to provide a method for preparing sodium potassium aluminum fluoride, which comprises the following steps:
1) preparing materials: mixing Na 3 AlF 6 、KAlF 4 Preparing, and then grinding Na by using a water-cooled mechanical impact CR grinding machine 3 AlF 6 、KAlF 4 And potassium fluoroaluminate for 20-50 minutes;
2) grinding: the step can be adjusted according to the use requirement, the grinding temperature is controlled to be accurate between 75 ℃ and 80 ℃, the granularity D50 is freely adjusted between 5 um and 10um (the granularity and the grinding temperature play a key role in the uniformity of the product), and the comprehensive molecular ratio of the product can be accurately controlled to be 1.528 under the action of a dispersing agent, so that the melting point of the product can meet the 775 ℃ requirement of customers at home and abroad, and the corrosion and the damage to the refractory material caused by the increase of 'K' ions are reduced;
3) preparation: after grinding, a micro powder measuring and adding device is used, uniformly ground powder is added into the micro powder measuring and adding device, and Na is added into potassium aluminum fluoride in a proper amount through the micro powder measuring and adding device when preparing the sodium potassium aluminum fluoride 3 AlF 6 、KAlF 4 The sodium-potassium-aluminum fluoride is obtained, so that the proportion of Al, K and Na of the product is improved, the melting point of the product is improved, the corrosion effect on a melting vessel (high-aluminum refractory material) caused by the simple improvement of the content of K is reduced, the addition of sodium ions enables the melting curve to be mildly raised, meanwhile, the high-aluminum lining of a temperature-resistant crucible or a sagger or a medium-high frequency furnace of all alumina products is protected, the service life and the frequency are prolonged, and the molten mixed substance slag is easier to separate.
(III) advantageous effects
Compared with the prior art, the invention provides a formula of sodium potassium aluminum fluoride and a preparation method thereof, and the formula has the following beneficial effects:
the formula of the sodium potassium aluminum fluoride is characterized in that a part of NaF or Na is added according to the content of previously detected F, Al and K while potassium aluminum fluoride is ground through a production process route 3 AlF 6 The proportion of Al, K and Na of the product is improved, the melting point of the product is improved, the corrosion effect on a melting vessel (high-alumina refractory material) caused by the simple improvement of the content of K is reduced, the addition of sodium ions enables the melting curve to be mildly raised, meanwhile, the high-alumina lining of a temperature-resistant crucible or a sagger or a medium-high frequency furnace of all alumina products is protected, the service life is prolonged, the frequency is increased, and the melted mixed substance slag is easier to separate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The first embodiment is as follows: the formula of the sodium potassium aluminum fluoride comprises the following raw materials in parts by weight: na (Na) 3 AlF 6 、KAlF 4 And potassium fluoroaluminate, Na 3 AlF 6 、KAlF 4 Is thirty percent.
A preparation method of sodium potassium aluminium fluoride comprises the following steps:
preparing materials: mixing Na 3 AlF 6 、KAlF 4 Preparing, and then grinding Na by using a water-cooled mechanical impact CR grinding machine 3 AlF 6 、KAlF 4 And potassium fluoroaluminate for 20-50 minutes;
grinding: the step can be adjusted according to the use requirement, the grinding temperature is controlled to be accurate between 75 ℃ and 80 ℃, the granularity D50 is freely adjusted between 5 um and 10um (the granularity and the grinding temperature play a key role in the uniformity of the product), and the comprehensive molecular ratio of the product can be accurately controlled to be 1.528 under the action of a dispersing agent, so that the melting point of the product can meet the 775 ℃ requirement of customers at home and abroad, and the corrosion and the damage to the refractory material caused by the increase of 'K' ions are reduced;
preparation: after grinding, a micro powder measuring and adding device is used for adding uniformly ground powder into the micro powder measuring and adding device, and Na is added into potassium aluminum fluoride in a proper amount through the micro powder measuring and adding device when preparing the sodium potassium aluminum fluoride 3 AlF 6 、KAlF 4 The sodium-potassium-aluminum fluoride is obtained, so that the proportion of Al, K and Na of the product is improved, the melting point of the product is improved, the corrosion effect on a melting vessel (high-aluminum refractory material) caused by the simple improvement of the content of K is reduced, the addition of sodium ions enables the melting curve to be mildly raised, meanwhile, the high-aluminum lining of a temperature-resistant crucible or a sagger or a medium-high frequency furnace of all alumina products is protected, the service life and the frequency are prolonged, and the molten mixed substance slag is easier to separate.
Firstly, the index parameter table of potassium aluminum fluoride is as follows:
the molecular ratio of batch A was 1.11, batch B was 1.14, and batch C was 1.12, calculated by the above criteria. The molecular ratio we want to achieve in the ideal state should be between 1.35-1.55;
therefore, a certain amount of KF is needed to be added for adjustment, but in order to achieve the estimation wanted by the above description, only the theory and thought are changed, and Na is used 3 AlF 6 Instead of this.
And the indexes of the sodium fluoaluminate elements are as follows:
the contents of 70% of potassium fluoroaluminate and 30% of sodium fluoroaluminate are calculated as follows:
as calculated from the data in the above table, the comprehensive molecular ratio of batch A was 1.528, the comprehensive molecular ratio of batch B was 1.546, the comprehensive molecular ratio of batch C was 1.528, and the comprehensive molecular ratios were all increased after adjustment.
The invention has the beneficial effects that: the formula of the sodium potassium aluminum fluoride is characterized in that a part of NaF or Na is added according to the content of previously detected F, Al and K while potassium aluminum fluoride is ground through a production process route 3 AlF 6 The proportion of Al, K and Na of the product is improved, the melting point of the product is improved, and the corrosion to a melting vessel (high-alumina refractory material) caused by the simple increase of the content of K is reducedBy adding sodium ions, the melting curve is gently raised, and meanwhile, the high-aluminum lining of a temperature-resistant crucible or a sagger or a medium-high frequency furnace of all alumina products is protected, so that the service life and the frequency are prolonged, and the molten impurity substance slag is easier to separate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The formula of the sodium potassium aluminum fluoride is characterized by comprising the following raw materials in parts by weight: na (Na) 3 AlF 6 、KAlF 4 And potassium fluoroaluminate.
2. The formulation of claim 1, wherein the Na is selected from the group consisting of sodium potassium fluoride, sodium aluminate, and sodium aluminate, and sodium aluminate, and sodium aluminate, wherein 3 AlF 6 、KAlF 4 Is thirty percent.
3. The preparation method of the sodium potassium aluminum fluoride is characterized by comprising the following steps of:
1) preparing materials: na is mixed with 3 AlF 6 、KAlF 4 Preparing, and then grinding Na by using a water-cooled mechanical impact CR grinding machine 3 AlF 6 、KAlF 4 And potassium fluoroaluminate for 20-50 minutes;
2) grinding: the step can be adjusted according to the use requirement, the grinding temperature is controlled to be accurate between 75 ℃ and 80 ℃, the granularity D50 is freely adjusted between 5 um and 10um (the granularity and the grinding temperature play a key role in the uniformity of the product), and the comprehensive molecular ratio of the product can be accurately controlled to be 1.528 under the action of a dispersing agent, so that the melting point of the product can meet the 775 ℃ requirement of customers at home and abroad, and the corrosion and the damage to the refractory material caused by the increase of 'K' ions are reduced;
3) preparation: after grinding, selecting a micro powder metering and adding device, grindingAdding the uniformly ground powder into a micro powder metering and adding device, and adding Na to potassium aluminum fluoride in a proper amount by the micro powder metering and adding device when preparing the sodium potassium aluminum fluoride 3 AlF 6 、KAlF 4 The sodium-potassium-aluminum fluoride is obtained, so that the proportion of Al, K and Na of the product is improved, the melting point of the product is improved, the corrosion effect on a melting vessel (high-aluminum refractory material) caused by the simple improvement of the content of K is reduced, the addition of sodium ions enables the melting curve to be mildly raised, meanwhile, a temperature-resistant crucible or a sagger of all alumina products or a high-aluminum lining of a medium-high frequency furnace is protected, the service life and the frequency are prolonged, and the molten mixed substance slag is easier to separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210569606.1A CN114933321A (en) | 2022-05-24 | 2022-05-24 | Formula and preparation method of sodium potassium aluminum fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210569606.1A CN114933321A (en) | 2022-05-24 | 2022-05-24 | Formula and preparation method of sodium potassium aluminum fluoride |
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| Publication Number | Publication Date |
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| CN114933321A true CN114933321A (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202210569606.1A Pending CN114933321A (en) | 2022-05-24 | 2022-05-24 | Formula and preparation method of sodium potassium aluminum fluoride |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946013A (en) * | 2007-12-24 | 2011-01-12 | 福塞科国际有限公司 | The modification flux that is used for the improvement of molten aluminum |
| KR20120101882A (en) * | 2011-03-07 | 2012-09-17 | (주)디에스리퀴드 | A flux for removing magnesium impurity from molten aluminium or aluminium alloy and the removing method of magnesium impurity from molten aluminium or aluminium alloy using the same |
| CN102732914A (en) * | 2012-07-25 | 2012-10-17 | 深圳市新星轻合金材料股份有限公司 | Method for preparing electrolyte and supplementing system thereof in aluminum electrolysis process |
| WO2013020396A1 (en) * | 2012-02-24 | 2013-02-14 | 深圳市新星轻合金材料股份有限公司 | Cycled preparation method that uses sodium fluoborate as intermediate raw material and produces boron element and simultaneously sodium cryolite |
| CN103603014A (en) * | 2012-05-23 | 2014-02-26 | 深圳市新星轻合金材料股份有限公司 | Electrolytic aluminum production method taking elpasolite as supplemental system |
-
2022
- 2022-05-24 CN CN202210569606.1A patent/CN114933321A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946013A (en) * | 2007-12-24 | 2011-01-12 | 福塞科国际有限公司 | The modification flux that is used for the improvement of molten aluminum |
| KR20120101882A (en) * | 2011-03-07 | 2012-09-17 | (주)디에스리퀴드 | A flux for removing magnesium impurity from molten aluminium or aluminium alloy and the removing method of magnesium impurity from molten aluminium or aluminium alloy using the same |
| WO2013020396A1 (en) * | 2012-02-24 | 2013-02-14 | 深圳市新星轻合金材料股份有限公司 | Cycled preparation method that uses sodium fluoborate as intermediate raw material and produces boron element and simultaneously sodium cryolite |
| CN103603014A (en) * | 2012-05-23 | 2014-02-26 | 深圳市新星轻合金材料股份有限公司 | Electrolytic aluminum production method taking elpasolite as supplemental system |
| CN102732914A (en) * | 2012-07-25 | 2012-10-17 | 深圳市新星轻合金材料股份有限公司 | Method for preparing electrolyte and supplementing system thereof in aluminum electrolysis process |
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Application publication date: 20220823 |