The correlation between the particle size of oxidized copper ore and its metal extraction rate in heap leaching process was studied.

研究了在堆浸工艺中氧化铜矿石粒级大小与浸出率之间的相关性。

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When in underground mine leaching, in order to improve permeability of heap leaching, speed up leaching and improve leaching effectiveness, ore should be blasted to certain fragmentation.

在地下溶浸采矿中，为了改善受浸矿堆的渗透性，加快浸出速度，提高浸出效果，需将矿岩爆破至一定的块度。

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Heap leaching to low grade gold ore in the Northwest District has been proven a profit making method.

采用堆浸法处理低品位金矿石，在西北各主要产金省已取得了很好的经济效益。

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That was in 1994, when Friedland was best known by critics as "Toxic Bob, " after another of his ventures, Galactic Resources, tried to develop a gold mine near Summitville, Colorado using heap leaching, an extraction process that dips ore in cyanide to extract gold.

FORBES: Magazine Article

That was in 1994, when Friedland was best known by critics as "Toxic Bob, " after another of his ventures, Galactic Resources, tried to develop a gold mine near Summitville, Colo. using heap leaching, an extraction process that dips ore in cyanide to extract gold.

FORBES: The Promoter