发明名称 |
METHOD TO PROCESS POLYMETALLIC ORES AND CONCENTRATES BEARING NOBLE METALS, ARSENIC, CARBON AND SULFUR |
摘要 |
Roasting of ores with metal values such as precious metal ores for recovery of metal values with conversion of arsenic to an insoluble form in-situ in presence of an additive such as iron and in presence of oxygen injected initially or supplementally in a roaster such as in a circulating fluid bed roaster; volatilized arsenic in roasting of ores may also be converted to an insoluble form in gas phase in a two stage roaster process after removal of solids from a gas phase and contact with an additive at high oxygen concentration in a second stage roaster. <IMAGE> |
申请公布号 |
RU2079562(C1) |
申请公布日期 |
1997.05.20 |
申请号 |
SU19925011801 |
申请日期 |
1992.04.10 |
申请人 |
METALLGEZELSHAFT AG |
发明人 |
ENTONI LYUIS KHENNAFORD;KERRI MARK LE VER;RENE RAMON FERNANDEZ;GOPEJLAN RAMADOREJ;ARNO FITTING;GURUDAS ZAMENT;BODO PAJNEMANN;GEBKHARD BANDEL;KHANS KOFALK |
分类号 |
C22B11/02;C22B1/02;C22B1/10;C22B30/04 |
主分类号 |
C22B11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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