寻找更好的方法来管理尾矿风险.pdf

1、Finding Better Ways to Manage Tailings RiskJai Prasad,Chief Advisor Next Generation Processing19 September 2024,MITFinding Better Ways to Manage Tailings RiskJai Prasad,Chief Advisor Next Generation Processing19 September 2024,MITFinding Better Ways to Manage Tailings RiskJai Prasad,Chief Advisor Ne

2、xt Generation Processing19 September 2024,MITBlueberries,Aerospace&the Art of the Possible 2024 Rio Tinto GroupOur challengeAND there are headwindsTrends:Ore grade(metal concentration)is decliningOre is at increasing depthsMineralogy is increasingly complexhttps:/www.worldbank.org/en/news/infographi

3、c/2019/02/26/climate-smart-miningOre Grades Trend DownThe size of our challenge,if we do nothingICMM,Hatch,IEA,S&P Global 2024 Rio Tinto GroupWhat do we mean by risk?Engineering/administrative controlsTechnical study to create opportunityrisk noun1.:possibility of loss or injury:peril2.:someone or s

4、omething that creates or suggests a hazardTailings Risk:Losses from NOTMitigating threatRealizing opportunities 2024 Rio Tinto GroupReuseSome challengesThe high failure rate for re-use technologiesMarket alignment and physical distanceProcessing can be very complexRisk aversion,maybe for good reason

5、!2024 Rio Tinto GroupAnhydrite(calcium sulfate)is a by-product of the aluminium refining process.We make 85 ktpa from our operations in the Saguenay,Lac-Saint-Jean region,Quebec.Blueberry growers in the region need anhydrite to make their plants more productive.Our proximity allows farmers reliable,

6、low-cost access to our by-product.Other uses for anhydrite include construction materials.Even superfoods need their minerals!2024 Rio Tinto GroupScandium:Making aerospace even coolerRio Tinto Iron and Titanium(RTIT)at Sorel-Tracy,Quebec now make scandium oxide from titanium dioxide production waste