Process Efficiency Improvement TRIZ Cases

Solvent extraction selectively transfers manganese into an organic phase, separating it from aqueous impurities for high purity crystallization.

Sulfatizing sulfide-free minerals with sulfur trioxide gas eliminates liquid acid handling risks while enabling selective metal recovery.

A two-zone fluidized bed reactor separates inert particles from ore to maintain precise roasting temperatures.

Hearth furnace process recovers metallic iron from waste while controlling sulfur levels and minimizing micro-nodule formation.

A molten salt layer contacts aluminum alloy melt to selectively remove magnesium, reducing waste generation and safety hazards associated with chlorine gas.

Composite extractant achieves high yield and selectivity for light and heavy rare earths over iron impurities across varying phosphoric acid concentrations.

Heating spent catalyst leachate recovers hydrochloric acid, which cleans solids to recover rhodium and palladium while eliminating waste disposal costs.

A biogenerator circuit feeds active microorganisms into a main bioleaching loop to sustain oxidation rates.

Segmented reactor series with integrated flotation separates solid matter to increase concentration and reduce volume requirements.

A two-stage precipitation process separates valuable metals from arsenic solutions to produce pure discharge water.

A method for recovering rare earth elements using double sulfate precipitation to achieve high recovery rates without expensive chemicals.

Sequential acid stripping with hydrochloric acid selectively removes vanadium from Cyanex 923, resolving iron co-extraction bottlenecks.

Oriented silicon steel manufacturing reduces carbon content via protective atmosphere annealing, eliminating underlying layers that increase iron loss.

Cupric ion oxidation with chloride and bromide recovers gold while minimizing reagent consumption.

Vortex formation atomizes molten slag to recover valuable metals and sensible heat, eliminating the need for energy-intensive crushing processes.

Ionizing chlorine gas via electromagnetic fields enables selective gold extraction from electronic waste and ores while reducing energy consumption.

Organic acid leaching agent dissolves colloidal and mineral rare earth phases through complexation and reduction mechanisms.

Sloped cathode structures drain molten aluminum to reduce anode-to-cathode distance and energy consumption.

A rotary pickling carousel lifts and lowers transport baskets through treatment basins to control immersion depth.

Controlling silicon and copper levels in ductile cast iron resolves the trade-off between tensile strength and notched impact energy.

Introducing oxygen gas into acidic copper etching solution generates bubbles that enhance mass transfer and oxidation speed.

Hypochlorous acid oxidizes sulfide ores to extract target metals, reducing chlorine consumption and avoiding passivation layers at low pH.

Direct contact between hot off-gas and acid solution transfers thermal energy to warm the process fluid, eliminating external heating requirements.

Magnetized NdFeB powder undergoes spontaneous combustion to form metal oxides, preventing dust explosions.

Indirect cooling of calcium-containing pregnant leach solution with a gypsum-depleted stream prevents equipment scaling and reduces maintenance downtime.

Adding a cationic flocculant to magnesium oxide neutralized slurry prevents filtration failure by aggregating fine precipitates into larger flocs.

Stabilizing metallurgical waste sludges with binders before compacting them into durable briquettes, resolving storage pollution and low utilization issues.

Neutralizing zinc sulphate to pH 2.5-3.5 co-precipitates rare metals with iron, solving unsuitable solution composition from direct leaching.

Replacing volatile MIBK with stable alkyl acetophenones improves extraction efficiency while reducing safety risks in hydrometallurgical processing.

Disposable green pellets shield furnace grids from thermal damage, eliminating burnt pellet recirculation and increasing equipment volume utilization.

Pressure oxidation and reductive leaching process for gold concentrate.

Using heated flotation tailings rich in acid consumers to partially neutralize reactive sulfates reduces lime and limestone costs in gold ore processing.

A composite additive forms fine, spheroidized inclusions to enhance steel toughness and fatigue resistance.

Reductive roasting with alkali salts separates iron from titanium dioxide to prevent complex slag formation and improve recovery efficiency.

Aqueous acidic oxidant mixture oxidizes precious metals into soluble bromide salts for subsequent separation.

A graphite electrode inserts into brass melt under pulse current to drive impurity migration via electromigration.

A recycled 6063 aluminum alloy material uses controlled composition to maintain mechanical properties.

Urea attacks iron in the ore to release soluble metals, reducing leaching time under two hours.

Eliminating binding agents and thermal processing removes slag formation and hydrocarbon emissions while maintaining mechanical resistance.

A two-step hydrometallurgical process recovers copper, zinc, lead, and silver at atmospheric pressure.

Colloidal carbon adsorbs precious metals from unconventional feed water sources before membrane filtration concentrates the loaded particles.

Sequential oxidizers in deep eutectic solvents improve metal selectivity while reducing reagent costs.

Organic acid dissolution extracts rare earths from NdFeB magnets, avoiding chlorine gas hazards and reducing energy consumption.

A hydrophobic deep eutectic solvent apparatus directly leaches solid metal components into a distinct liquid phase for subsequent recovery.

A supercritical fluid extraction medium with a metal-selective organic ligand recovers platinum group metals directly.

Hot acid treatment decomposes asbestos solids into non-silicic solutions for selective iron recovery.

A mould flux with controlled alkali oxides stabilizes nickel-base alloy casting.

Nb and Ti refine austenite grains to produce ultralow-carbon martensite, delivering 100 J impact energy at -80°C for engineering machinery.

A pyrolyzer connects to a smelting furnace via a disposal duct conveying hot gas for direct combustion, eliminating uncontrollable afterburner reactions.

Roasting converts insoluble zinc ferrite into soluble forms for alkaline leaching, enabling high-purity zinc recovery while minimizing liquid waste generation.