Ammonia leaching dissolves Group VIB and VIII metals from spent hydroprocessing catalysts into soluble complexes.
Water vapor stripping separates non-Hevea natural rubber from organic solvents without secondary contamination, yielding uniform solid crumbs.
Tubular simulation apparatus manages heat loss to replicate commercial heap conditions and improve metal extraction efficiency.
Air flotation extracts elemental sulfur from spent amorphous iron oxide hydroxide, enabling rapid regeneration and reducing industrial waste accumulation.
Freeze-drying cannabis plant matter into powder overcomes limited solvent access in naturally dried material, boosting cannabinoid yield.
Tin oxide sputtering targets doped with niobium oxides achieve high conductivity and transparency without indium oxide.
Pressure cycling extracts temperature-sensitive oils using propane, reducing energy consumption and thermal degradation.
A sulfate-chloride gel leaching process extracts copper from concentrates at ambient temperature and pressure.
Continuous extraction removes acids to halt digestion at acidogenesis, preventing conversion to methane and boosting yield.
A sorbent cartridge regenerates dialysis solution using tap water to enable home-based treatment.