Title:
SYSTEM AND METHOD FOR ABOVE-ATMOSPHERIC LEACHING OF METAL SULFIDES
Document Type and Number:
WIPO Patent Application WO/2016/100453
Kind Code:
A3
Abstract:
A system and method for improving leach kinetics and recovery during above-atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the steps of: (a) producing a metal sulfide concentrate [34] via flotation; (b) moving the produced metal sulfide concentrate [34] to at least one chamber [22a] of at least one reactor such as an autoclave [20]; (c) leaching the produced metal sulfide concentrate in said at least one chamber [22a] in the presence of oxygen [82] at a pressure and/or temperature above ambient, and in the presence of partially-used [25] and/or or new [92] grinding media within the at least one chamber [22a]. Systems [10] and apparatus [20, 200] for practicing the aforementioned method are also disclosed.
Inventors:
CHAIKO DAVID J (US)
EYZAGUIRRE CARLOS (US)
EYZAGUIRRE CARLOS (US)
Application Number:
PCT/US2015/066003
Publication Date:
July 28, 2016
Filing Date:
December 16, 2015
Export Citation:
Assignee:
SMIDTH AS F L (DK)
CHAIKO DAVID J (US)
CHAIKO DAVID J (US)
International Classes:
C22B3/04
Domestic Patent References:
| WO2011072324A1 | 2011-06-23 |
Foreign References:
| US20040065987A1 | 2004-04-08 | |||
| US20020152845A1 | 2002-10-24 |
Attorney, Agent or Firm:
SHARP, Jeffrey A. (Bethlehem, Pennsylvania, US)
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