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阿特拉斯矿业联合开发公司经营的菲律宾第二大产金企业——马斯巴特(Masbate)金矿1990年产金2 706kg(87 000盎司)。主露天矿规漠1 800t/d,用钢绳铲、前装机和汽车开采矿脉露头;三座地下卫星矿总计规模1 800t/d,采用平硐开拓,留矿法、分层充填法和分段空场法采矿。根据品位,矿石分别在选厂和堆浸厂处理,选厂采用 CIL 工艺,金回收率88％～90％;堆浸贵液由炭吸附柱吸附,载金炭由选厂统一处理,堆浸回收率50％。该矿尾矿库令人瞩目:由于尾矿中的氰化物在阳光和水的作用下通过自然降解而转化为能促进作物生长的尿素类肥料;矿主适时地实施复垦计划,引进多种农作物,这就解决了尾矿库带来的环境问题。矿山产金,尾矿池种植作物,实现了多种经营。本文综合论述了马斯巴特金矿采矿、选矿和尾矿库复田实践。
The Masbate gold mine, the second largest gold producer in the Philippines operated by Atlas Mining Cooperative Development Company, produced 2 706 kg (87 000 ounces) of gold in 1990. The main open-pit mines and deserts 1 800t / d, with steel rope shovel, pre-installed and car mining veins out; the total size of the three underground satellite ore 1 800t / d, the use of open-pit mining method, Section empty field mining method. According to the grade, the ore is respectively treated at the beneficiation plant and the heap leaching plant, and the beneficiation plant adopts the CIL process, the gold recovery rate is 88% -90%; heap leaching solution is adsorbed by the carbon adsorption column; Recovery rate of 50%. The mine tailings attract people’s attention: due to the cyanide tailings in the sun and water under the action of natural degradation can be converted into urea fertilizer to promote crop growth; mine timely implementation of reclamation plan, the introduction of a variety of Crops, which solved the environmental problems posed by tailings ponds. Mine gold, tailings ponds to grow crops, to achieve a variety of management. This article discusses the Masbat gold mining, mineral processing and tailings pond complex practice.