Whilst gold attracts all the attention, the process plant at the Martabe Mine located in North Sumatra,rnIndonesia had several other issues to accommodate in design, that is, to account for high silver grades,rnto manage significant copper in the ore, and to control variable mercury levels. Notwithstanding thosernmetallurgical constraints, the challenging site conditions including mountainous terrain, earthquakepronernregion, heavy tropical rainfall, containment of acid rock drainage water and poor geotechnicalrnconditions created significant earthworks, water management and materials handling challenges forrnthe project.rnThe Martabe Mine is located in the District of Batang Toru in the Province of North Sumatra near tornthe coastal town of Sibolga. The Martabe Project is in a geologically complex zone. Ore will initiallyrnbe mined from the Purnama deposit by open cut mining. This pit provides an average grade to thernprocess plant of 1.9 g/t Au and 25 g/t Ag with grades as high as 3.0 g/t Au and 36 g/t Ag expected.rnThe process plant is designed to treat 4.5 million tonnes per year of gold/silver ore.rnThis paper describes not only the metallurgical issues but also the physical and operability challengesrnof the Martabe Project process plant design.
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機譯：盡管金吸引了所有人的注意力，但位于印度尼西亞北蘇門答臘省Martabe礦的選礦廠在設計時還遇到了其他幾個問題，即要考慮高銀品位，要管理礦石中的大量銅并進行控制可變的汞含量。盡管存在冶金學方面的限制，但挑戰性的工地條件包括山區地形，地震易發地區，熱帶強降雨，酸性巖石排水水的封閉以及不良的巖土工程條件，給該項目帶來了巨大的土方工程，水管理和物料搬運挑戰。rnMartabe礦位于巴塘區北蘇門答臘省的托魯（Toru）在沿海小鎮西博爾加（Sibolga）附近被撕毀。 Martabe項目位于地質復雜的地區。最初將通過露天開采從Purnama礦床開采礦石。該礦井為煉鋼廠提供的平均品位為1.9 g / t金和25 g / t銀，預計品位將高達3.0 g / t金和36 g / t銀.rn該選礦廠的設計處理能力為每噸450萬噸金/銀礦石年。本文不僅描述了冶金問題，而且還描??述了Martabe項目過程工廠設計中的物理和可操作性挑戰。
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