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  • a small fern in dark soil sits cupped in a pair of hands

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    IAI Reports Progress In Greenhouse Gas Reduction Initiative

    The International Aluminium Institute (IAI) reported on the progress of its Aluminium Industry Greenhouse Gas Initiative, which was launched at COP28 in December 2023. The initiative tracks and publicly reports the greenhouse gas reduction ambitions and progress of IAI member companies, encouraging further steps in the sector’s efforts to address climate change. The initiative is backed […]

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    Vedanta Aluminium Poised for Growth as It Transforms into a Standalone Operation

    Vedanta Aluminium is a major player in the aluminum industry, operating two aluminum smelters in India, including its plant in Jharsuguda, Odisha, and its subsidiary unit Bharat Aluminium Company Limited (BALCO) located in Korba, Chhattisgarh. In addition, the company operates an alumina refinery in Lanjigarh, Odisha. Recently, it was announced that the company would be […]

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    Advances in Processing Alumina Refinery Bauxite Residue Waste

    By Alton Tabereaux, Contributing Editor. Bauxite residue is an insoluble solid waste by-product generated after the digestion of gibbsitic bauxite ore with sodium hydroxide at elevated temperature and pressure in the Bayer process for the extraction of alumina. During the digestion process, aluminum minerals react with caustic soda process liquor to form soluble sodium aluminate […]

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    Vedanta Achieves Energy Efficiency Breakthrough with Patented Potlining Technology

    Vedanta Aluminium, the largest aluminum producer in India, achieved a new breakthrough in the design of a new potlining technology for its aluminum smelters. The Vedanta Lining Design is a patented, energy-efficient technique that reduces energy consumption by 200–250 KWh per tonne of aluminum produced, providing increased energy efficiency and enhanced lifespan of the smelting […]

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    Vedanta Announces Plans to Separate Its Metals Businesses

    Vedanta Limited, the largest diversified natural resources company in India, plans to to demerge its business units into independent “pure play” companies. The company stated that this will simplify Vedanta’s corporate structure and unlock value and attract investment into the expansion and growth of each of the businesses. More than 90% of Vedanta Ltd’s profits […]

  • 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 […]

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    BALCO Trials the Use of Biodiesel in Its Aluminum Smelting Operations

    Bharat Aluminium Company Limited (BALCO), a subsidiary of Vedanta Aluminium, successfully conducted trial runs for using biodiesel in its smelter operations in Korba, Chhattisgarh, India. This is in line with the company’s ambitious target to become net zero carbon by 2050 or sooner. Towards this end, BALCO is looking at increasing the quantum of renewables […]

  • Figure 2. Demolition and removal of SPL from an aluminum cell cathode.

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    The SPL Waste Management Challenge in Primary Aluminum

    By Alton Tabereaux, Contributing Editor. Spent potlining (SPL) disposal is one of the largest environmental waste management challenges confronting worldwide primary aluminum smelters due to its toxicity. The International Aluminium Institute (IAI) asserts that 1.6 million tons of SPL were generated from primary aluminum production in 2019,1 making it the second largest waste volume produced […]

  • Fig 1 Red Mud Pond Stade-NEW

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    ARTICLE: Addressing the Challenge of Bauxite Residue

    By Alton Tabereaux, Contributing Editor. The largest waste by-product generated in the Bayer bauxite refining process is bauxite residue, commonly called red mud. An enormous quantity of caustic red mud is generated worldwide every year, posing a very serious and alarming environmental and safety problem. The storage of red mud is a challenge for alumina […]