Invention Grant
- Patent Title: Process for recovering platinum group metals from ores and concentrates
- Patent Title (中): 从矿石和精矿中回收铂族金属的工艺
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Application No.: US12762503Application Date: 2010-04-19
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Publication No.: US07972412B2Publication Date: 2011-07-05
- Inventor: Mario Bergeron , Marc Richer-Lafléche
- Applicant: Mario Bergeron , Marc Richer-Lafléche
- Applicant Address: CA Montreal, Quebec
- Assignee: Ressources Minieres Pro-Or Inc.
- Current Assignee: Ressources Minieres Pro-Or Inc.
- Current Assignee Address: CA Montreal, Quebec
- Agency: Godfrey & Kahn, S.C.
- Agent Nicholas A. Kees
- Priority: CA2435779 20030722
- Main IPC: C22B1/08
- IPC: C22B1/08 ; C22B11/06

Abstract:
A method for recovering at least one platinum group metal (PGM) species from a feed product selected from the group consisting of chromite ore, chromite ore concentrate and PGM concentrate comprising the steps of: mixing the feed with at least one salt so as to produce a mixture, whereby the concentration of salt in the mixture is sufficient to convert at least one PGM species into a corresponding PGM chloride salt; and contacting the mixture with gaseous chlorine and CO at a temperature between about 240° C. and 800° C. to induce the conversion of at least one species of PGM into a solid material containing a corresponding PGM chloride salt, whereby said chloride salt of at least one PGM species can be recovered.
Public/Granted literature
- US20100257978A1 PROCESS FOR RECOVERING PLATINUM GROUP METALS FROM ORES AND CONCENTRATES Public/Granted day:2010-10-14
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