ZA202305470B - Removing impurities from an electrolyte - Google Patents
Removing impurities from an electrolyteInfo
- Publication number
- ZA202305470B ZA202305470B ZA2023/05470A ZA202305470A ZA202305470B ZA 202305470 B ZA202305470 B ZA 202305470B ZA 2023/05470 A ZA2023/05470 A ZA 2023/05470A ZA 202305470 A ZA202305470 A ZA 202305470A ZA 202305470 B ZA202305470 B ZA 202305470B
- Authority
- ZA
- South Africa
- Prior art keywords
- anodes
- cathodes
- cell
- bath
- purifier
- Prior art date
Links
- 239000012535 impurity Substances 0.000 title abstract 2
- 239000003792 electrolyte Substances 0.000 title 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910001610 cryolite Inorganic materials 0.000 abstract 1
- 229910052733 gallium Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/04—Regulation of the inter-electrode distance
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/30—Cells comprising movable electrodes, e.g. rotary electrodes; Assemblies of constructional parts thereof
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/18—Electrolytes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/007—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells comprising at least a movable electrode
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
- C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Secondary Cells (AREA)
Abstract
It is disclosed a purifier assembly and method for removing impurities from an electrolytic bath before using the same with an electrolytic cell for making a metal, such as aluminum or aluminium. The assembly comprises a purification tank, located upstream the cell, for containing the bath; and at least one row, preferably at least two rows, of alternating vertically oriented cathodes and anodes configured to be operatively connected to a power supply for providing an electric current to the anodes and cathodes. The rows of vertically oriented cathodes and anodes are configured in size to be inserted into the tank. The purifier assembly is configured to maintain an anode-to-cathode distance (ACD) between the cathodes and anodes. The purifier is particularly adapted for removing sulfur, phosphorus, iron, and/or gallium from cryolite for the eco-friendly production of aluminum with a cell using oxygen-evolving or inert anodes, which preferably requires a purer bath.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063117483P | 2020-11-24 | 2020-11-24 | |
| PCT/CA2021/051665 WO2022109725A1 (en) | 2020-11-24 | 2021-11-23 | Removing impurities from an electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA202305470B true ZA202305470B (en) | 2024-01-31 |
Family
ID=81753963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA2023/05470A ZA202305470B (en) | 2020-11-24 | 2023-05-19 | Removing impurities from an electrolyte |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20240003030A1 (en) |
| EP (1) | EP4251791A1 (en) |
| CN (1) | CN116583629A (en) |
| AU (1) | AU2021386476A1 (en) |
| CA (1) | CA3197049A1 (en) |
| DK (1) | DK202370307A1 (en) |
| WO (1) | WO2022109725A1 (en) |
| ZA (1) | ZA202305470B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8006886A (en) * | 1979-10-29 | 1981-05-05 | Diamond Shamrock Corp | PURIFICATION PROCESS, METAL REMOVAL PROCESS, SOLUTION, AND SYSTEM TO MAKE THE PROCESS EFFECT |
| DE4137377A1 (en) * | 1991-11-13 | 1993-05-19 | Jatzke Rudolf Fa | METHOD, MEANS AND DEVICE FOR THE ELECTRODIALYTIC REGENERATION OF THE ELECTROLYTE OF A GALVANIC BATH OR THE LIKE. |
| ES2375057T3 (en) * | 2003-08-14 | 2012-02-24 | Rio Tinto Alcan International Limited | METAL ELECTROLYTIC EXTRACTION CELL WITH ELECTROLYTE PRIFIER. |
-
2021
- 2021-11-23 AU AU2021386476A patent/AU2021386476A1/en active Pending
- 2021-11-23 WO PCT/CA2021/051665 patent/WO2022109725A1/en active Application Filing
- 2021-11-23 EP EP21895995.5A patent/EP4251791A1/en active Pending
- 2021-11-23 CN CN202180079016.4A patent/CN116583629A/en active Pending
- 2021-11-23 CA CA3197049A patent/CA3197049A1/en active Pending
- 2021-11-23 US US18/038,358 patent/US20240003030A1/en active Pending
-
2023
- 2023-05-19 ZA ZA2023/05470A patent/ZA202305470B/en unknown
- 2023-06-19 DK DKPA202370307A patent/DK202370307A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US20240003030A1 (en) | 2024-01-04 |
| CN116583629A (en) | 2023-08-11 |
| CA3197049A1 (en) | 2022-06-02 |
| DK202370307A1 (en) | 2023-07-06 |
| AU2021386476A1 (en) | 2023-06-22 |
| WO2022109725A1 (en) | 2022-06-02 |
| EP4251791A1 (en) | 2023-10-04 |
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