Process Efficiency Improvement TRIZ Cases

Simultaneous fragmentation and oxidation of molten alloys purifies base metals above 90% while producing engineered metal compounds.

Organic electrolytic solution dissolves tungsten from raw materials, avoiding ammonium nitrate explosion risks and multistage purification.

Acid leaching and oxalate precipitation recover high-purity rare-earth oxides from contaminated environmental barrier coating scrap.

A B2O3 and Mn2O3 additive lowers magnetite pellet roasting temperature by promoting Fe2+ movement through a trace fluid phase.

An evacuated hood overflow system draws escaping volatile organic compounds into a manifold and eductor for recycling.

A hybrid reactor system oxidizes organic carbon material in ores using elevated temperature and pressure.

Supported membrane solvent extraction transports dysprosium through hollow fibers, resolving equilibrium limitations in rare earth separation.

An electric arc furnace uses inert gas to lower nitrogen concentration in steel melts.

Eddy current sensors measure electrical conductivity to differentiate aluminum alloys, resolving density-based sorting limitations.

Metal oxide catalysts enable lithium extraction using dilute sulfuric acid, reducing chemical waste and disposal costs.

Density-based phase separation removes iron compounds from recycled aluminum without complex filtration.

Replacing cyanide, thiourea leaching achieves over 95% gold recovery from refractory sulfidic ores while minimizing base metal dissolution.

A leaching process using reduced iron and metal-reducing microorganisms to extract manganese from ore.

Calcium chloride catalyzes carbothermic chromite reduction at lower temperatures to produce segregated ferrochrome particles.

Separates lateritic ore into limonite and saprolite fractions to optimize sulphuric acid leaching conditions, reducing chemical consumption.

Low-temperature joint melting of copper or silver with PGM catalysts separates the collector alloy from slag, reducing energy consumption and oxide volatility.

Alkaline aqueous leaching of electric arc furnace dust dissolves zinc oxide at elevated temperatures to yield a zinc-rich solution.

Lime and soluble alkali complexing agents prevent iron passivation during alkaline leaching, allowing high precious metal recovery at ambient pressure.

Roasting wet sulfide concentrates then smelting the calcine in an inert atmosphere to produce a single matte type.

Eliminating flux from copper converting reduces energy consumption and sulfur content while maintaining molten slag through controlled oxidation.

Organic acid solution extracts rare earth elements from coal waste at ambient temperature, reducing energy costs and hazardous chemical handling.

A non-ammoniacal thiosulfate leaching process uses copper and polyamine ligands to extract precious metals from ores.

Hydrothermal mineralization extracts hexavalent chromium from sticky waste residues, resolving separation difficulties and enabling complete detoxification.

Microorganisms biosorb metal ions from aqueous solutions, concentrating target metals while recycling depleted growth media to reduce energy inputs.

Particulate bismuth oxide mixed with ferrosilicon solves low yield and storage disintegration while increasing nodule density.

A magnetite precipitation process removes iron from hydrometallurgical liquors using controlled pH and magnetic separation.

Recycles high speed steel processing waste into master alloys using oxide mixtures and primary melting at 1500 to 2500 degrees Celsius.

Soda ash calcination transforms spent catalyst residues into soluble metal compounds, reducing process complexity and operating costs.

Compressing molten metal by-products creates an oxygen barrier that prevents oxidation during cooling, enabling efficient aluminum recovery from waste slag.

Leaching lead from fragmented brass chips using organic acids preserves copper-zinc properties for safe water contact components.

Iron(II) sulfate consumes free chlorine to prevent explosive gas mixtures during precious metal recovery.

Room temperature curing of binder-treated steel by-products reduces energy consumption while maintaining metallization rates above 92.5 percent.

Selective extractants recover lithium and nickel from solution, eliminating multi-stage complexity and reducing waste generation.

Optimizing carbon monoxide to carbon dioxide ratios in rotary hearth furnaces produces dense hot briquette iron with superior moldability.

Optimized lean duplex stainless steel composition suppresses chromium nitride precipitation in the weld heat-affected zone.

A hydrometallurgical process recovers platinum group metals and rare earth elements from polymetallic feed materials.

Supercritical fluid de-waxing removes hydrocarbon wax from Fischer-Tropsch catalysts, preventing spinel formation that blocks hydrometallurgical leaching.

A multiphase tinned steel plate uses controlled carbon and manganese to achieve high strength and elongation.

Combining pressure oxidative leaching with atmospheric halide extraction eliminates roasting steps and reduces reagent consumption for precious metal recovery.

Optical sensors identify water-induced blue color changes in magnesium scrap, resolving the trade-off between sorting accuracy and speed.

Optimized silicon and trace element ratios in a die-casting aluminum alloy achieve high yield strength without heat treatment, avoiding deformation issues.

Electron flow injection modifies electronic structures to dissolve refractory sulphides, resolving low recovery rates in traditional leaching processes.

A hydrometallurgical method extracts nickel and cobalt from laterite ores using pressure acid leaching and heap leaching with recycled liquor.

A rotating drum with a polygonal inner cross-section increases friction to accelerate gold dissolution in cold aqua regia.

Cold rolled steel sheet achieves 1150 MPa tensile strength and 30% hole expansion ratio by maintaining a bainite matrix with tempered martensite islands.

Sequential solvent extraction separates nickel, cobalt, and manganese into monotype sulfate solutions, preventing metal salt formation from sodium reagents.

A crosslinked resin with vinyl amine units selectively adsorbs gold cyano complexes from aqueous solutions at low pH levels.

Dissolving magnetic materials in organic solvents with beta-diketone compounds forms separable chelate complexes, eliminating aqueous waste generation.