With its Arizona proving grounds outside Tucson, Ariz., serving as a backdrop, Caterpillar has demonstrated its first battery-electric 793 model large mining truck as it announced an investment into the campus as a sustainable testing and validation hub of the future. The development of the 793 prototype came with support from key mining customers participating in Caterpillar’s Early Learner program.…
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CR Minerals, Rio Tinto to produce pozzolans from waste materials
Texas-based CR Minerals has reached an agreement with miner Rio Tinto for the production of pozzolans from waste materials at the latter’s U.S. Borax facility in Boron, Calif. CR Minerals intends to use waste tailings present onsite to produce pozzolans that can be used as a cement replacement in concrete. The pozzolans will be manufactured at a new facility to…
Read MoreRio Tinto invests $55M to add underground mining at Kennecott
Rio Tinto has announced a major growth plan for its Kennecott copper complex outside of Salt Lake City, Utah – an expansion to mining that will also take its efforts underground, which it said holds “potential for significant and attractive underground development.” The miner has earmarked US$55 million for the landmark transition project on the century-old mine and said it…
Read MoreArizona Sonoran, Nuton partner
Copper developer and near-term producer Arizona Sonoran Copper has entered into a one-year exclusivity period of metallurgical testing with Nuton, a Rio Tinto venture. Arizona Sonoran said the exclusivity was triggered by successfully modeling the Cactus and Parks/Salyer ore samples and achieving the previously contemplated indicative metallurgical recoveries of at least 72% (copper recovery to cathode), under an investor rights…
Read MoreRio Tinto investing US$188M for Alma upgrade project
Rio Tinto said it has earmarked US$188 million to upgrade its Alma smelter in Lac-Saint-Jean, Quebec to boost its production by 202,000 tonnes annually. The project, which is projected to be commissioned in the first quarter of 2025, will include an expansion of the existing casting center to accommodate new equipment, including a casting pit and furnaces – which in…
Read MoreRio Tinto, Star Diamond puts Star-Orion on ice
Star Diamond and partner Rio Tinto have confirmed they will place the Star-Orion diamond project in Saskatchewan, Canada, on care and maintenance until the end of this year. The two, which as a joint venture are known as Fort à la Corne, met recently and Rio Tinto Exploration Canada exercised its voting power as 75% interest holder to place the…
Read MoreRio Tinto, Corona Canada pilot low-carbon aluminum can
Rio Tinto and Corona Canada have launched a pilot in Ontario of specially marked, low-carbon beverage cans – the first in the country. The cans were made using aluminum from Rio Tinto and leveraging emissions-free ELYSIS smelting technology.
Read MoreCourt upholds Rio Tinto land swap
In a 2-1 ruling, the 9th U.S. Circuit Court of Appeals has ruled that the federal government may give thousands of acres of land in Arizona to Rio Tinto for its Resolution Copper project, reported Reuters. The news agency said the ruling essentially defers to a 2014 decision made by Congress and then-President Barack Obama to give the land to…
Read MoreRio Tinto teams up with Nano One, invests US$10 million
Rio Tinto has entered into a strategic partnership providing iron and lithium products and a US$10M investment into clean tech innovator Nano One.
Read MoreMiners turn to unique leaching processes for copper extraction
Bacteria and newly developed chemicals provide an alternative to conventional leaching. Edited by Josephine Patterson Due to copper prices nearly doubling in the past two years, miners like Rio Tinto and Freeport-McMoRan have begun to use new leaching technologies to extract low concentrations of the in-demand product from waste rock, reported Reuters. Miners aim to use bacteria or other newly…
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