WO2023175570 - SYSTEM AND METHOD FOR CONTROLLING OR REMOVING HARD DEPOSITS ON ELECTROWINNING CATHODES
National phase entry:
Publication Number
WO/2023/175570
Publication Date
21.09.2023
International Application No.
PCT/IB2023/052604
International Filing Date
16.03.2023
Title **
[English]
SYSTEM AND METHOD FOR CONTROLLING OR REMOVING HARD DEPOSITS ON ELECTROWINNING CATHODES
[French]
SYSTÈME ET PROCÉDÉ DE COMMANDE OU D'ÉLIMINATION DE DÉPÔTS DURS SUR DES CATHODES D'EXTRACTION ÉLECTROLYTIQUE
Applicants **
FLSMIDTH A/S
Inventors
WELDON, Todd
LEFLER, Mike
EYZAGUIRRE, Carlos
NGUYEN SORENSON, Anh
DE GRAAF, Kenneth
BURTON, Wilford
Priority Data
63/320,359
16.03.2022
US
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter II
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Send the Letters Patent by Courier
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2691 | |
| EPO | Filing, Examination, Granting | 17116 | |
| Japan | Filing, Examination, Granting | 2680 | |
| South Korea | Filing, Examination, Granting | 3024 | |
| USA | Filing, Examination, Granting | 11140 |
Total:
36,651
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
Electrowinning circuits and methods of electrowinning are disclosed. Embodiments may be characterized in that that they promote the removal of hard cathode deposits from cathodes. Embodiments may also be characterized in that they promote softer deposits of precious metals onto cathodes during the electrowinning process. An advantage of practicing disclosed embodiments is that precious metal deposits on cathodes may be more easily recovered and the cathodes may be re-used in the electrowinning process. Thus, cathode destruction via smelting to recover precious metal deposits can be avoided.[French]
L'invention concerne des circuits et des procédés d'extraction électrolytique d'extraction électrolytique. Des modes de réalisation peuvent être caractérisés en ce qu'ils favorisent l'élimination de dépôts durs des cathodes. Des modes de réalisation peuvent également être caractérisés en ce qu'ils favorisent des dépôts plus souples de métaux précieux sur des cathodes pendant le processus d'extraction électrolytique. Un avantage de la mise en œuvre des modes de réalisation de l'invention est que des dépôts de métaux précieux sur des cathodes peuvent être récupérés plus facilement et les cathodes peuvent être réutilisées dans le processus d'extraction électrolytique. Ainsi, la destruction de cathode par fusion pour récupérer des dépôts de métaux précieux peut être évitée.