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Santa Cruz venture plans in situ copper mine next year

机译:圣克鲁斯合资企业计划明年在原地开采铜矿

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The Santa Cruz Joint Venture plans to start in situ copper mining in 1996 at its test facility near Casa Grande, AZ. The Santa Cruz Joint Venture is a cooperative government/industry research project. Involved are the US Bureau of Mines, Asarco Santa Cruz Inc. and export Copper Co. In situ mining uses weak chemical solutions 10 selectively recover minerals from rock. The rock itself and the surface remain basically undisturbed. This technique produces practically no waste, leaves the land virtually unscarred and avoids other environmental and safety problems associated with conventional mines. In situ mining could make it economic: o work deposits that are now too low-grade or too deep to be mined. "The Bureau began studying in situ mining in the 1970s as an environmentally sound alternative," said William Larson, research supervisor with the bureau of Mines.
机译:圣克鲁斯合资企业计划于1996年在其位于亚利桑那州Casa Grande附近的测试设施开始铜矿开采。圣克鲁斯合资企业是政府/行业之间的合作研究项目。涉及的是美国矿业局,Asarco Santa Cruz Inc.和出口铜业公司。原位开采使用弱化学溶液10选择性地从岩石中回收矿物。岩石本身和表面基本上保持不受干扰。该技术几乎不产生浪费,几乎没有土地留下土地,并且避免了与常规矿山相关的其他环境和安全问题。原地开采可以使其经济:o现在的品位太低或太深而无法开采。矿业局研究主管威廉·拉森(William Larson)表示:“该局从1970年代开始研究原地采矿,这是对环境无害的另一种选择。”

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