Process Efficiency Improvement TRIZ Cases

Dried red algae cell derivatives selectively adsorb precious metals from high acid solutions, eliminating the need for live cell management.

Chlorination roasting volatilizes heavy metals from cyanide tailings, locking residues into stable ceramsite to reduce environmental pollution.

A reductive autocatalytic process solubilizes copper from chalcopyrite concentrates using iron salts and sulfuric acid.

Segmented impurity removal with chelating resin reduces adsorption cycles and equipment costs during scandium extraction.

Inline multi-mode gas activation apparatus removes dissolved hydrogen from liquid aluminum using ultrasonic cavitation and vacuum extraction.

Microwave radiation at 915 MHz replaces high-pressure reactors to solubilize metals in sulfide ore, lowering energy consumption and equipment complexity.

Removing silica binders from chromite pellets eliminates slag formation while maintaining particle stability during storage.

Direct copper bar contact eliminates steel inserts, lowering ohmic losses and simplifying recycling in Hall-Heroult cells.

Acidic leaching with oxidizing agents stabilizes cobalt in solid phase while dissolving nickel, simplifying separation from mixed hydroxide precipitates.

Cloud point extraction separates palladium using a beta-dithiocarbonyl compound, resolving selectivity and environmental trade-offs in hydrometallurgy.

Mineral oil on steel scrap suppresses iron dissolution during acidic leaching, yielding high-purity zinc solution and a protective surface layer.

Alkaline melt oxidizes ruthenium into water-soluble ruthenate, bypassing slow acid dissolution and selenium interference.

Multi-stage solvent extraction recovers gold from dilute aqueous solutions using dibutyl carbitol, eliminating toxic cyanide elution.

A solvent captures carbon dioxide to form rare earth metal carbonate precipitates for high-purity recovery.

CaO-Al2O3 slag layer on molten steel enables nitrogen removal through oxygen gas blowing, reducing production costs by integrating desulfurization.

Chloride leaching oxidizes metals while photocatalytic deposition isolates gold, reducing energy consumption compared to harsh acidic methods.

Continuous ion exchange chromatography separates rare earth elements into high purity fractions, reducing waste and energy consumption.

Acidic reduction of ammonium hexahalogenoplatinate with hydrazine yields 99.999% pure platinum sponge.

Selective precipitation of phosphate anions using alkaline earth metal oxide reduces evaporation time and energy costs.

Calcium aluminum alloy reacts with antimony arsenic in molten lead to form floating scum, reducing impurity levels below 0.0005% without losing valuable tin.

A nanofiltration module separates alkali metal ions from multivalent ions under high pressure and temperature conditions.

Mild oxidizing agents replace toxic reagents to dissolve noble metals at ambient temperatures, reducing environmental hazards.

Articulated quadrilateral linkage tilts and rotates electric arc furnace lances, minimizing side wall openings to reduce heat losses.