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Copper Electrowinning Process
Abstract: The present invention concerns a copper electrowinning process suitable for the production of enhanced-quality cathodes from highly contaminated electrolytes. The process is performed in electrowinning cells including a plurality of anodes and cathodes, equipped with gas sparging elements at their bottom. It comprises the step of sparging gas across the cathodes, and is characterized in that the solution contains more than 100 mg/L of arsenic. The invention provides an alternative solution to the problem of cathode quality when dealing with highly contaminated electrolytes, in particular when containing high concentrations of arsenic.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
05 October 2021
Publication Number
43/2021
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
patent@depenning.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-04-02
Renewal Date
Applicants
UMICORE
Rue du Marais 31
B-1000 Brussels
Inventors
1. HENNEBEL, Tom
Umicore
Adolf Greinerstraat 14
B-2660 Hoboken
2. GRADE, Hans
Umicore
Adolf Greinerstraat 14
B-2660 Hoboken
3. HOFMAN, Daan
Umicore
Adolf Greinerstraat 14
B-2660 Hoboken
4. VERHAEGHE, Frederik
Umicore
Adolf Greinerstraat 14
B-2660 Hoboken
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202147045196-STATEMENT OF UNDERTAKING (FORM 3) [05-10-2021(online)].pdf | 2021-10-05 |
| 2 | 202147045196-PROOF OF RIGHT [05-10-2021(online)].pdf | 2021-10-05 |
| 3 | 202147045196-PRIORITY DOCUMENTS [05-10-2021(online)].pdf | 2021-10-05 |
| 4 | 202147045196-FORM 1 [05-10-2021(online)].pdf | 2021-10-05 |
| 5 | 202147045196-DECLARATION OF INVENTORSHIP (FORM 5) [05-10-2021(online)].pdf | 2021-10-05 |
| 6 | 202147045196-COMPLETE SPECIFICATION [05-10-2021(online)].pdf | 2021-10-05 |
| 7 | 202147045196-FORM-26 [08-12-2021(online)].pdf | 2021-12-08 |
| 8 | 202147045196-FORM 3 [08-02-2022(online)].pdf | 2022-02-08 |
| 9 | 202147045196-Correspondence_Proof of Right-Form 1, GPA_16-09-2022.pdf | 2022-09-16 |
| 10 | 202147045196-FORM 18 [13-02-2023(online)].pdf | 2023-02-13 |
| 11 | 202147045196-FORM 3 [14-02-2023(online)].pdf | 2023-02-14 |
| 12 | 202147045196-FER.pdf | 2023-04-11 |
| 13 | 202147045196-FORM 3 [14-08-2023(online)].pdf | 2023-08-14 |
| 14 | 202147045196-OTHERS [03-10-2023(online)].pdf | 2023-10-03 |
| 15 | 202147045196-Information under section 8(2) [03-10-2023(online)].pdf | 2023-10-03 |
| 16 | 202147045196-FER_SER_REPLY [03-10-2023(online)].pdf | 2023-10-03 |
| 17 | 202147045196-CLAIMS [03-10-2023(online)].pdf | 2023-10-03 |
| 18 | 202147045196-US(14)-HearingNotice-(HearingDate-12-03-2024).pdf | 2024-01-11 |
| 19 | 202147045196-FORM-26 [06-03-2024(online)].pdf | 2024-03-06 |
| 20 | 202147045196-Correspondence to notify the Controller [06-03-2024(online)].pdf | 2024-03-06 |
| 21 | 202147045196-Written submissions and relevant documents [21-03-2024(online)].pdf | 2024-03-21 |
| 22 | 202147045196-Retyped Pages under Rule 14(1) [21-03-2024(online)].pdf | 2024-03-21 |
| 23 | 202147045196-2. Marked Copy under Rule 14(2) [21-03-2024(online)].pdf | 2024-03-21 |
| 24 | 202147045196-PatentCertificate02-04-2024.pdf | 2024-04-02 |
| 25 | 202147045196-IntimationOfGrant02-04-2024.pdf | 2024-04-02 |
Search Strategy
| 1 | 202147045196searchE_10-04-2023.pdf |