发明名称 |
TREATING REFRACTORY GOLD ORES VIA OXYGEN ENRICHED ROASTING |
摘要 |
Gold-containing ores, having refractory sulfidic matter or a combination of refractory sulfidic matter and refractory carbonaceous matter, are processed to recover their gold values. The process uses an ore roasting procedure that utilizes a two-stage, fluidized bed roaster. The process also employs a pure oxygen atmosphere during roasting. A carbon-in-leach step is desirably used to extract gold values from the roasted ore. |
申请公布号 |
CA1322657(C) |
申请公布日期 |
1993.10.05 |
申请号 |
CA19890596740 |
申请日期 |
1989.04.14 |
申请人 |
FREEPORT-MCMORAN, INC. |
发明人 |
SMITH, JAY C.;MCCORD, THOMAS H.;O'NEIL, GREGORY R. |
分类号 |
C22B1/02;C22B11/00;C22B11/02 |
主分类号 |
C22B1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|