Gold and/or silver is leached from comminuted ore with an alkaline cyanide lixiviant at a superatmospheric pressure of at least 25 bar and with high purity oxygen (at least 90% pure) to reduce the residence time at high yield.
申请公布号
US4438076(A)
申请公布日期
1984.03.20
申请号
US19830523022
申请日期
1983.08.12
申请人
METALLGESELLSCHAFT AG;VEREINIGTE ALUMINUM-WERKE AG