Process Efficiency Improvement TRIZ Cases

Preprocessing organic secondary materials enables continuous thermal treatment, maintaining high throughput while minimizing pollutant emissions.

Segmented leaching at varying pH levels extracts phosphoric acid from sewage sludge ash, resolving low-grade product issues by enabling technical grade purity.

Adding sulfate ions to chloride media solvent extraction increases copper concentration in the organic phase, reducing solution volume and operational costs.

Corrects contaminated mongrel alloy composition using specific elements to achieve amorphous structure without virgin material.

Flux-assisted reduction converts iron and volatile metals in non-ferrous slag to metallic form for clean separation.

Thermal treatment of spent inert anodes at 950-1200°C removes bath residues, preventing voids and iron content reduction in castings.

Direct oxalate precipitation with a reducing agent isolates rare earth elements from acidic leach solutions.

A two-stage combustion process heats solid scrap with visible flames before switching to flameless mode for molten metal.

Tin stripping additive reduces nitric acid usage while maintaining high efficiency, addressing environmental pollution from strong acid waste.

Evaporation process separates organic solvents from noble metals in liquid waste streams.

Anion exchange dialysis membrane selectively retains gallium complexes to prevent loss during semiconductor wastewater recycling.

Electrochemical oxidation in a permeable basket vessel generates high-concentration metal ion suspensions without harsh chemical residues or irritants.

A method recovers rhenium by adding an electron donor and ketone to a solution, then irradiating with ultraviolet light to precipitate reduced species.

Ammonium chloride leaching dissolves metals while cementation precipitates them, bypassing complex solvent extraction steps.

Sulfuric acid leaching removes chlorides while pressure leaching dissolves silver and selenium, resolving process complexity and environmental emissions.

Alkaline hydrothermal treatment separates silicates while electrolysis recovers metallic lead without toxic substances or high energy consumption.

Recrystallizing phosphogypsum hemihydrate into dihydrate in acidic calcium salt solutions extracts rare-earth metals while purifying calcium sulphate.

Composite micro-alloying with vanadium, titanium, and nitrogen boosts yield strength to 460 MPa while maintaining -40°C impact toughness.

A potential adjustment agent lowers the electric potential of a copper sulfide leaching solution to suppress iodine volatilization during extraction.

A dissolver and vibrating screen enable direct leaching of whole electronic boards without grinding.

Recycling pregnant liquor maintains dissolved sulphide levels, reducing reagent costs while ensuring complete arsenic removal.

Ferric ions mediate oxidation to dissolve palladium while leaving platinum and rhodium undissolved, improving extraction selectivity.

Peroxomonosulfate salts precipitate cobalt ions as oxyhydroxide solids within controlled pH ranges.

Extruding a thermoplastic binder with pyrophoric direct reduced iron creates non-combustible briquettes that eliminate oxidation risks during shipping.

Composite BaCO3 flux lowers slag melting point to improve dephosphorization ratio while preventing nozzle plugging during high-carbon steel processing.

Acidithiobacillus thiooxidans oxidizes magnetic sulfur impurities in iron concentrate ores, achieving over 80% removal while limiting iron loss to 3%.

Optimized acid levels and moisture prevent friable agglomerates, maintaining heap permeability for efficient metal recovery.

Segmenting ore bodies by volume enables precise leaching agent application, resolving the trade-off between extraction rate and chemical consumption.

Austenitic transformation refines grain structure in cold-rolled steel sheets.

Silicon-free CaO-Al2O3-Fe2O3-B2O3 slag prevents ferrosilicon alloy formation, enabling high platinum group metal recovery rates.

A self-draining ceramic foam filter apparatus primes molten metal flow using under-pressure control.

Calcining lithium-bearing mica with potassium sulfate and calcium sulfate improves lithium yield.

Precise Fe, Si, and Mg control in aluminum alloys achieves 170 W/m·K thermal conductivity while maintaining strength and enabling recycled material usage.

Alkaline amino acid leaching replaces toxic cyanide with glycine to extract copper and gold while reducing reagent costs.

A selective rare earth recovery process uses pH-controlled dissolution to extract elements from waste while maintaining nickel in the solid phase.

Fire-roasting removes cutting fluid contaminants from aeronautical aluminum scraps, enabling oxygen-controlled smelting that prevents oxidation losses.

Heterotrophic microorganisms extract gold and silver from sieved fly ash fractions via alkaline bioleaching.

Sequential vacuum columns separate high and low boiling impurities to reduce energy consumption.

Chemical treatment removes sulfur and iron from fly ash, enabling high-purity magnesium production via the Pidgeon Process.

Two-stage SO2 leaching separates Cu contamination from Mn, Ni, and Co recovery in polymetallic nodules.

Multi-domain RTX polypeptides form beta rolls to overcome lanmodulin's low binding capacity and improve REE recovery efficiency.

A convex cambered narrow-faced copper plate with a wide arc surface modifies the transverse geometry of continuous casting molds.

An electrified liquid-liquid extraction system uses an alkyl-substituted ferrocene compound to selectively bind and release precious metal species.

Selective redox precipitation recovers gold, palladium, and silver from circuit board leachates using low-cost reagents.

Manages arsenic precipitation and silver jarosite formation during pressure oxidative leaching to improve recovery rates.

Aerating sulphidic ore heaps through controlled pipes while sealing sides prevents uncontrolled oxygen loss and boosts metal recovery.

Adjusting scandium solution pH to -0.5–1 enables selective oxalate precipitation for high-purity oxide production.

Glycinamide solvents separate copper and lead from manganese, nickel, and cobalt mixtures to prevent coprecipitation.

A converting process for platinum group metal collector alloy reduces flux material usage through partial pre-oxidation and slag recycling.

Segmenting the burner housing into a steel core and copper shell reduces material costs while maintaining cooling efficiency in steelmaking processes.