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.

Miners are deploying larger rotary scrubbers, high-capacity screens and optimised tailings circuits to keep iron ore grades and plant throughput stable as feed becomes finer, stickier and more variable. McLanahan reports demand for heavy-duty scrubbing systems paired with multi-deck wet screens to break down clay-rich ore and split it into lump, fines and ultra-fines streams with tighter cut sizes. The shift places more emphasis on ore characterisation, water balance and wear-liner selection to avoid bottlenecks and unplanned downtime in dense media and wet screening sections.

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.