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.

High-temperature dissolution and low-temperature recrystallization purify yttrium, reducing process complexity and cost.

Substituting heavy rare earths with La and Ce lowers production cost while heat treatment maintains 300 MPa tensile strength.

A solvothermal process uses polyol solvents to selectively extract lithium from mixed metal materials.

Selective dissolution of calcined rare earth oxides in concentrated acid separates light and heavy elements, reducing organic solvent use.

Ammonia-ammonium chloride solution dissolves silver and lead chlorides, removing tin and antimony impurities to yield high-purity products.

Thermal reduction of zinc production sludges recovers indium, germanium, and silver while converting waste into valuable iron alloy.

Redox potential control under 100 mV selectively leaches nickel and cobalt, reducing copper removal loading.

Reductive activation converts metal sulfide particles into metastable phases, overcoming surface passivation that slows atmospheric leaching.

Halophilic microorganisms maintain activity at high chloride concentrations, reducing fresh water volume while sustaining leaching rates.

High chloride acid solution pre-treatment accelerates copper extraction from sulphide minerals, eliminating forced aeration costs and shortening leach cycles.

Hydrophilic phenanthroline derivatives selectively complex lighter lanthanides in acidic aqueous solutions.

Hydrometallurgical leaching of copper anode slime with nitric and sulfuric acid enables selective precipitation of silver, copper, and selenium.

Heating nickel oxide ore mixtures to a molten state enables gravity separation of metal and slag, eliminating fine particle dispersion issues.

Dividing the anode beam into two parallel sections reduces mechanical load and deformation while maintaining structural strength for stable cell operation.

Controlled rolling and accelerated cooling create a bainitic microstructure in thick steel plates, maintaining uniform hardness across the thickness.

A method for concentrating and recovering noble metals using boron compounds in copper-containing mixtures.

Charging cobalt-bearing materials into a converter furnace under oxidizing conditions concentrates the metal in slag for high-yield recovery.

Aluminothermic reduction converts titanium and vanadium bearing ores directly into crude alloy using an aluminum reducing agent.

A 3-methyl ketoxime and aldoxime mixture resists hydrolytic degradation at elevated temperatures, maintaining copper recovery efficiency.

Nitric acid leaching extracts lithium from silicate ores into soluble nitrate, reducing process complexity and environmental hazards of traditional refining.

Adjusting metallurgical temperatures and slag basicity restricts complex oxide inclusion growth, preventing surface slivers in continuous casting.

Ammonium chloride chlorination converts roasted pyrite oxides into volatile iron chloride, reducing energy consumption and chemical waste during metal recovery.

Microwave-assisted leaching using imidazolium ionic liquids extracts precious metals from whole waste circuit boards without mechanical crushing.

Composite extractant-enhanced polymer resin selectively extracts rare earth metals, reducing solvent loss and emulsion formation during phase separation.

Segmenting concentrate fractions and pelletizing fines reduces temperature differences, preventing incomplete oxidation and ferrite formation.