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Process For The Recovery Of Metals From Polymetallic Nodules
Abstract: The present disclosure concerns a process for the recovery of valuable metals from polymetallic nodules. A two-stage process using SO2 in an acidic aqueous media is disclosed. In a first step, performed in mildly acidic conditions, Mn, Ni, and Co are dissolved; in a second, more acidic step, Cu is dissolved. Under these conditions, the leachate of the first step contains most of the Mn, Ni, and Co, while being nearly Cu-free. The Ni and Co are precipitated as sulfides; the Mn can be recovered as sulfate by crystallization. Cu, which is leached in the second step, is selectively precipitated, also as sulfide.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
15 July 2021
Publication Number
30/2021
Publication Type
INA
Invention Field
METALLURGY
Status
Email
patent@depenning.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-02-12
Renewal Date
Applicants
UMICORE
Rue du Marais 31
B-1000 Brussels
Inventors
1. DANIELS, Michel
Watertorenstraat 33
B-2250 Olen
2. SCOYER, Jean
Watertorenstraat 33
B-2250 Olen
3. BALTES, Michael
Watertorenstraat 33
B-2250 Olen
4. NEVEN, Margot
Watertorenstraat 33
B-2250 Olen
5. LEYSSEN, Jan
Watertorenstraat 33
B-2250 Olen
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202147031907-STATEMENT OF UNDERTAKING (FORM 3) [15-07-2021(online)].pdf | 2021-07-15 |
| 2 | 202147031907-PROOF OF RIGHT [15-07-2021(online)].pdf | 2021-07-15 |
| 3 | 202147031907-PRIORITY DOCUMENTS [15-07-2021(online)].pdf | 2021-07-15 |
| 4 | 202147031907-FORM 1 [15-07-2021(online)].pdf | 2021-07-15 |
| 5 | 202147031907-DRAWINGS [15-07-2021(online)].pdf | 2021-07-15 |
| 6 | 202147031907-DECLARATION OF INVENTORSHIP (FORM 5) [15-07-2021(online)].pdf | 2021-07-15 |
| 7 | 202147031907-COMPLETE SPECIFICATION [15-07-2021(online)].pdf | 2021-07-15 |
| 8 | 202147031907-FORM-26 [21-09-2021(online)].pdf | 2021-09-21 |
| 9 | 202147031907.pdf | 2021-10-19 |
| 10 | 202147031907-FORM 3 [31-12-2021(online)].pdf | 2021-12-31 |
| 11 | 202147031907-Correspondence_Proof of Right-Form 1, GPA_04-08-2022.pdf | 2022-08-04 |
| 12 | 202147031907-FORM 3 [24-11-2022(online)].pdf | 2022-11-24 |
| 13 | 202147031907-FORM 18 [24-11-2022(online)].pdf | 2022-11-24 |
| 14 | 202147031907-FER.pdf | 2022-12-13 |
| 15 | 202147031907-OTHERS [13-06-2023(online)].pdf | 2023-06-13 |
| 16 | 202147031907-Information under section 8(2) [13-06-2023(online)].pdf | 2023-06-13 |
| 17 | 202147031907-FORM-26 [13-06-2023(online)].pdf | 2023-06-13 |
| 18 | 202147031907-FORM 3 [13-06-2023(online)].pdf | 2023-06-13 |
| 19 | 202147031907-FER_SER_REPLY [13-06-2023(online)].pdf | 2023-06-13 |
| 20 | 202147031907-CLAIMS [13-06-2023(online)].pdf | 2023-06-13 |
| 21 | 202147031907-PatentCertificate12-02-2024.pdf | 2024-02-12 |
| 22 | 202147031907-IntimationOfGrant12-02-2024.pdf | 2024-02-12 |
Search Strategy
| 1 | ptser322E_13-12-2022.pdf |
| 2 | ptse312AE_26-06-2023.pdf |