Invention Grant
- Patent Title: Process for extracting gold from gold-bearing ore
- Patent Title (中): 从含金矿石中提取黄金的工艺
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Application No.: US12281568Application Date: 2007-03-05
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Publication No.: US07985277B2Publication Date: 2011-07-26
- Inventor: Chen Xia , Wan-Tai Yen
- Applicant: Chen Xia , Wan-Tai Yen
- Applicant Address: CN
- Assignee: Metal Asia International, Ltd.
- Current Assignee: Metal Asia International, Ltd.
- Current Assignee Address: CN
- Agency: Rader, Fishman & Grauer PLLC
- International Application: PCT/CA2007/000337 WO 20070305
- International Announcement: WO2007/098603 WO 20070907
- Main IPC: C22B3/04
- IPC: C22B3/04
Abstract:
A process for extracting gold from a gold-bearing ore. The process includes, first, providing a leaching liquor with thiosulfate anion and ethylenediamine. Next, the leaching liquor is contacted with the gold-bearing ore to form a pregnant leach solution including gold dissolved from the gold-bearing ore. Finally, at least part of the gold in the pregnant leach solution is recovered.
Public/Granted literature
- US20100116092A1 PROCESS FOR EXTRACTING GOLD FROM GOLD-BEARING ORE Public/Granted day:2010-05-13
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