CA2367606A1 - Oxidative pressure leach recovery using halide ions - Google Patents
Oxidative pressure leach recovery using halide ions Download PDFInfo
- Publication number
- CA2367606A1 CA2367606A1 CA002367606A CA2367606A CA2367606A1 CA 2367606 A1 CA2367606 A1 CA 2367606A1 CA 002367606 A CA002367606 A CA 002367606A CA 2367606 A CA2367606 A CA 2367606A CA 2367606 A1 CA2367606 A1 CA 2367606A1
- Authority
- CA
- Canada
- Prior art keywords
- precious metal
- oxidative pressure
- pressure leach
- malte
- leach solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A method for recovering a precious metal from a host material, comprises the steps of subjecting the host material to an oxidative pressure leach process, in the presence of a halide ion constituent, preferably a chloride ion, which is reactive with the precious metal, and at an elevated temperature of at least 170°C to cause at least a portion of the precious meatal to be extracted by a leach solution in the form of a precious metal-bearing chloride complex, and recovering the precious metal from the leach solution. When the host material is a smelt malte material including a base metal and a precious metal, said malte is subjected to a first oxidative pressure leach process to recover subtantially all of said base metal in the form of at least one sulphate complex into a first leach solution, and then acid malte material is subjected to a second oxidative pressure leach process in the presence of a halide ion constituent and at a temperature sufficient to cause at least a portion of said precious metal to be recovered into a second leach solution, from which the precious metal is extracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002367606A CA2367606C (en) | 1999-04-28 | 2000-04-27 | Oxidative pressure leach recovery using halide ions |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/300,878 | 1999-04-28 | ||
| US09/300,878 US6315812B1 (en) | 1999-04-28 | 1999-04-28 | Oxidative pressure leach recovery using halide ions |
| CA2,303,661 | 2000-04-03 | ||
| CA2303661 | 2000-04-03 | ||
| PCT/CA2000/000438 WO2000065111A1 (en) | 1999-04-28 | 2000-04-27 | Oxidative pressure leach recovery of precious metals using halide ions |
| CA002367606A CA2367606C (en) | 1999-04-28 | 2000-04-27 | Oxidative pressure leach recovery using halide ions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2367606A1 true CA2367606A1 (en) | 2000-11-02 |
| CA2367606C CA2367606C (en) | 2007-01-23 |
Family
ID=27171207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002367606A Expired - Fee Related CA2367606C (en) | 1999-04-28 | 2000-04-27 | Oxidative pressure leach recovery using halide ions |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2367606C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7537741B2 (en) | 2003-02-12 | 2009-05-26 | Nichromet Extraction Inc. | Gold and silver recovery from polymetallic sulfides by treatment with halogens |
| US9346062B2 (en) | 2009-12-04 | 2016-05-24 | Barrick Gold Corporation | Separation of copper minerals from pyrite using air-metabisulfite treatment |
| CN114549955A (en) * | 2022-01-27 | 2022-05-27 | 中南大学 | Online intelligent identification method and system for blast furnace tapping endpoint |
-
2000
- 2000-04-27 CA CA002367606A patent/CA2367606C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7537741B2 (en) | 2003-02-12 | 2009-05-26 | Nichromet Extraction Inc. | Gold and silver recovery from polymetallic sulfides by treatment with halogens |
| US9346062B2 (en) | 2009-12-04 | 2016-05-24 | Barrick Gold Corporation | Separation of copper minerals from pyrite using air-metabisulfite treatment |
| US10258996B2 (en) | 2009-12-04 | 2019-04-16 | Barrick Gold Corporation | Separation of copper minerals from pyrite using air-metabisulfite treatment |
| CN114549955A (en) * | 2022-01-27 | 2022-05-27 | 中南大学 | Online intelligent identification method and system for blast furnace tapping endpoint |
| CN114549955B (en) * | 2022-01-27 | 2024-09-06 | 中南大学 | Online intelligent identification method and system for blast furnace tapping end point |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2367606C (en) | 2007-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160427 |