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    South32 Works to Reduce HF Emissions at Its Hillside Smelter

    South32 began an ambitious project to limit the amount of hydrogen fluoride (HF) being emitted from its gas treatment center (GTC) at its Hillside smelter in South Africa to 0.5 mg/Nm³ by April 2025. This will enable the smelter to comply with new environmental regulations. In order to achieve this goal, South32 is collaborating with […]

  • Alouette and Hatch Project teams mark the transfer of all ABF-1 relined sections to Alouette operations.

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    Aluminerie Alouette Invests in New Smelting Technologies

    Aluminerie Alouette, based in Sept-Îles, Quebec, Canada, is investing in its aluminum smelting operations. These investments include upgrades to its anode baking furnaces and the planned installation of new potline technologies to address waste streams at the site. Established in 1992, Alouette is an independent aluminum producer. With over 850 employees and an annual production […]

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    Trimet to Install New Control Process on Its Aluminum Smelters for Greater Sustainability

    Trimet Aluminium SE developed a new process control system for controlling the electrolysis furnaces in its aluminum smelters. The company plans to replace various existing control systems with this in-house developed control and monitoring system — called METRICS® — at its facilities in Essen, Hamburg, and Voerde, Germany, and Saint-Jean-de-Maurienne, France. This will enable the […]

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    Rio Tinto to Expand Its AP60 Aluminum Smelter in Quebec

    Rio Tinto will invest $1.1 billion (C$1.4 billion) to expand its state-of-the-art AP60 aluminum smelter at the Jonquière complex in Quebec, Canada. This expansion will enable Rio Tinto to continue meeting customers’ demand for low-carbon, high-quality aluminum for use in transportation, construction, electrical, and consumer goods. “This investment is aligned with our strategy to decarbonize […]

  • Exterior of Hydro's Sunndal plant, showing aluminum billet stacked in front

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    Company Profile: The Collaborative Triangle of Aluminum Innovation

    By Rose Eaton, Light Metal Age. In a village in Norway called Sunndalsøra, nestled between a crystal blue fjord and two massive mountain ranges, lies Hydro Sunndal, the largest primary aluminum plant in Europe and one of the most modern. Overabundant water flowing down the mountains and the deep-sea fjord have provided the area with […]

  • Karmøy Technology Pilot in Norway. (Photo: Marius Motrøen, Norsk Hydro.)

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    Decarbonizing the Primary Aluminum Industry

    By Halvor Kvande, NTNU (Retired); Gudrun Saevarsdottir, Reykjavik University; and Barry Welch, Welbank Consulting.  Abstract While global average greenhouse gas (GHG) emissions have changed little over the last several years, the best available data has become more reliable and has showed lower emissions. The electrolysis process has now been performed with a low emission rate […]

  • HalZero Technology

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    Hydro’s HalZero Smelting Technology Achieves a New Milestone

     Hydro is entering a new development stage for its HalZero production technology, which aims to decarbonize the aluminum smelting process. With support from the Norwegian government, the company plans to invest in a test facility for the new technology. This puts Hydro on track to deliver pilot production of zero-carbon primary aluminum by 2030. […]

  • The Las Tadeas wind farm in Spain. (Source: Capital Energy.)

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    The Shift Toward Renewable Power in Aluminum Smelting

    By Alton Tabereaux, Contributing Editor. Sixty-eight million tonnes of primary aluminum were produced worldwide in smelters in 2021. According to the Aluminium Stewardship Initiative (ASI), the aluminum sector was directly responsible for 275 million tonnes of CO2 emissions in 2021, a 2% increase over the previous year. If the indirect emissions from electricity are included, the […]