S. Hadi, Agung D. Syakti, Didik S. Agustawijaya, Wahyu D. Silviani, Karel Pramono, R. Anungstri, J. Waworuntu
{"title":"Study of Cu Recovery Comparison of Fresh, Stockpiled, and Mixed Ores Processing in Batu Hijau Mine – Sumbawa Island, Indonesia","authors":"S. Hadi, Agung D. Syakti, Didik S. Agustawijaya, Wahyu D. Silviani, Karel Pramono, R. Anungstri, J. Waworuntu","doi":"10.21776/ub.jpacr.2022.011.03.691","DOIUrl":null,"url":null,"abstract":"Batu Hijau mine is one of the mining areas in Indonesia that have been operated for 20 years. The main concentrate product in Batu Hijau contains the primary minerals copper (Cu) and gold (Au). However, the mine is not only processing the fresh mined ore but also store the low-grade ore in the stockpile. Therefore, this study compares the Cu recovery in different ore stockpile processing on and changes in the concentration of dissolved Cu in the tailings that potentially contaminated the environment. Chemical analysis of solid and dissolved Cu uses standard methods by strictly carrying out quality assurance and quality control (QA/QC) procedures to ensure the resulting data has high validity. The results showed that there is a slight increase in Cu’s solubility in liquid fraction of tailings and the recovery decrease when ores were processed from stockpiles. However, the recovery reduction is anticipated by flotation with controlled potential sulphidisation (CPS) using sodium hydrosulphide (NaHS). Besides, the CPS also ensure that only small amount of dissolved Cu that dumped in the tailings. Hence, the dissolved Cu concentration can be monitories to reduce the possible impact on the environment.","PeriodicalId":22728,"journal":{"name":"The Journal of Pure and Applied Chemistry Research","volume":"136 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Pure and Applied Chemistry Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21776/ub.jpacr.2022.011.03.691","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Batu Hijau mine is one of the mining areas in Indonesia that have been operated for 20 years. The main concentrate product in Batu Hijau contains the primary minerals copper (Cu) and gold (Au). However, the mine is not only processing the fresh mined ore but also store the low-grade ore in the stockpile. Therefore, this study compares the Cu recovery in different ore stockpile processing on and changes in the concentration of dissolved Cu in the tailings that potentially contaminated the environment. Chemical analysis of solid and dissolved Cu uses standard methods by strictly carrying out quality assurance and quality control (QA/QC) procedures to ensure the resulting data has high validity. The results showed that there is a slight increase in Cu’s solubility in liquid fraction of tailings and the recovery decrease when ores were processed from stockpiles. However, the recovery reduction is anticipated by flotation with controlled potential sulphidisation (CPS) using sodium hydrosulphide (NaHS). Besides, the CPS also ensure that only small amount of dissolved Cu that dumped in the tailings. Hence, the dissolved Cu concentration can be monitories to reduce the possible impact on the environment.
Batu Hijau矿是印尼开采了20年的矿区之一。Batu Hijau的主要精矿产品含有原生矿物铜(Cu)和金(Au)。然而,该矿除了对新开采的矿石进行加工外,还将低品位矿石储存在库存中。因此,本研究比较了不同矿石堆存工艺对铜的回收率和对环境有潜在污染的尾矿中溶解铜浓度的变化。固体和溶解Cu的化学分析采用标准的方法,严格执行质量保证和质量控制(QA/QC)程序,确保结果数据具有较高的有效性。结果表明:在尾矿液段中,铜的溶解度略有升高,回收率有所降低;然而,通过使用氢硫化钠(NaHS)进行控制电位硫化(CPS)浮选,预计回收率会降低。此外,CPS还保证了只有少量的溶解铜被倾倒在尾矿中。因此,溶解的铜浓度可以作为监测,以减少可能对环境的影响。