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- W2273215468 abstract "Ore bodies that were previously deemed unfeasible to mine have now become economically feasible due to the increase of gold price in recent years. In addition to the increase in gold price, some processes that have been under development have now been proven viable. Evidence of this is seen at Penjom Gold Mine (PGM) in Malaysia, where carbonaceous gold ores are mined and processed. PGM produces one of the world's worst preg-robbing gold ores, yielding very low recoveries from traditional carbon-in-leach methods. Preg-robbing is preferential absorption of gold-cyanide complex ions [Au(CN)2-] by organic carbon in the carbonaceous gold ores. The gold processing facilities in PGM are designed to address the challenges of fine gold recovery from carbonaceous and sulphide ores. Since employing the resin-in-leach process, gold recovery rates consistently run close to 90% which is a remarkable 30% improvement over recovery rates using activated carbon. The objective of this paper is to analyse how preg-robbing carbonaceous gold ores can be processed economically. The most important finding from this paper is the success of the resin-in-leach process in recovering gold from carbonaceous gold ores and the most up-to-date process parameters of cyanide concentration, temperature, and pH used in the hydrometallurgical circuit." @default.
- W2273215468 created "2016-06-24" @default.
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- W2273215468 date "2014-01-01" @default.
- W2273215468 modified "2023-09-23" @default.
- W2273215468 title "Plant optimization of process parameters for treatment of preg-robbing gold ores" @default.
- W2273215468 hasPublicationYear "2014" @default.
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