Invention Grant
- Patent Title: Alkaline and acid pressure oxidation of precious metal-containing materials
- Patent Title (中): 含贵金属的材料的碱性和酸性压力氧化
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Application No.: US14103385Application Date: 2013-12-11
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Publication No.: US09534273B2Publication Date: 2017-01-03
- Inventor: John William Langhans, Jr. , Wilson Chung-Yeh Tsu
- Applicant: Barrick Gold Corporation
- Main IPC: C22B3/00
- IPC: C22B3/00 ; C22B3/22 ; C22B3/08 ; C22B3/24 ; C22B3/06 ; C22B3/12
Abstract:
The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, with the discharge slurries from the pressure oxidation processes being combined to reduce neutralization requirements prior to precious metal recovery.
Public/Granted literature
- US20140096649A1 ALKALINE AND ACID PRESSURE OXIDATION OF PRECIOUS METAL-CONTAINING MATERIALS Public/Granted day:2014-04-10
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