Targeted filtration upgrades from Sefar are boosting throughput and lowering operating costs in alumina refineries by tailoring filter media to specific Bayer process stages. Custom-designed cloths and synthetic fabrics are being matched to caustic slurry chemistries, particle-size distributions and temperature profiles in security filtration, washer circuits and polishing filters to reduce blinding and extend change-out intervals. For process engineers, the approach offers a way to stabilise vacuum and pressure filter performance, cut reagent and energy use, and improve underflow/overflow clarity without major capital modifications.

Finalists for the GRX26 Industry Awards have been announced by AusIMM, spotlighting mining professionals and projects across categories such as digital transformation, ESG performance and emerging leadership. Shortlisted entries include initiatives using advanced orebody modelling, real-time fleet data analytics and low-emission processing circuits to improve mine productivity and environmental performance. Winners will be named at the GRX26 conference, giving operators and contractors a benchmark for current best practice in technology deployment, decarbonisation strategies and workforce development.

China Northern Rare Earth Group has lifted its Q2 2026 rare earth concentrate benchmark to 38,804 yuan/t (about $5,390) for 50% REO material, a 44.6% jump on Q1 and more than double the level a year ago, with a formula adjustment of 776.08 yuan/t for each 1% change in grade. The price was set under an existing concentrate-pricing formula with related-party supplier Inner Mongolia Baotou Steel Union Co., tying Q2 terms to Q1 oxide prices. The move coincides with China’s plan to block sulphuric acid exports from May, tightening leaching reagent supply for global rare earth processing.