Process Efficiency Improvement TRIZ Cases

Sloping copper current collector eliminates cast iron rodding and uneven thermal expansion contact.

Selective dissolution of rare earth oxide supports using ascorbic acid and mineral acids eliminates toxic effluents from catalyst recycling.

Niacin selectively precipitates gold complexes from acidic aqueous solutions, replacing toxic cyanide methods to recover 96.5% of gold from electronic waste.

Non-equilibrium plasma extracts compounds selectively while preventing thermal degradation of sensitive materials.

A deep eutectic solvent extracts rare earth elements from NdFeB magnets using hydrogen bond acceptor and donor compounds.

Aqueous organic acid extraction selectively solubilizes magnesium, aluminum, and silicon impurities from copper concentrate.

Roasting decomposes iron and titanium compounds while sonication increases surface area for efficient scandium extraction.

Electrolytic recovery of metallic lead from aqueous glass etching suspensions using periodic polarity reversal for efficient cathode detachment.

A corrugated mould cavity guides solidifying metal strands through parallel grooves to maintain precise rectangular geometry.

Sulfur-free malonamide extractants separate palladium from other metals in high acidity without complexing agents, maintaining stability.

Thermo-kinetic activation prevents vitrification of impurities in gold-loaded fine carbon, allowing effective gold recovery from non-carbonaceous residues.

Periodic acid concentration variation reduces iron extraction and waste liquor generation during leaching.

Bag filter dust neutralizes iron in oxidized leachate, cutting lime use and lowering environmental impact.

A furnace burner with a parabolic oxygen nozzle and concave tip directs gas flow for efficient combustion.

Multi-recycling lithium extraction process uses ion exchange and membrane separation to concentrate lithium ions in precursor solutions.

A lithium extraction process converts minerals into water-soluble compounds using gypsum and sulfur reagents for subsequent aqueous leaching.

Staged pH adjustment removes fluoride and aluminum ions from lithium-extraction dissolving-solution, minimizing lithium loss during carbonate recovery.

A metal rotary atomizing granulator uses terracing and a cooling system to form a protective solidified slag layer on the disk surface.

A nickel oxide ore smelting method uses controlled pulverization and magnetic sorting to recover iron-nickel alloy from mixed material.

Aqueous solutions with specific pH levels and surfactants separate impurities from 2xxx or 7xxx series aluminum alloy scrap.

Mixed extractants recover nickel and lithium in one stage, reducing solvent volume and waste compared to multi-step methods.

Granular quicklime with a hydrophobic coating prevents moisture absorption during storage.

A plasma torch injects energy to excite and extract metallic species from a matrix for selective recovery.

Alkaline amino acid leaching with transition metal complexes accelerates gold recovery while preventing impurity contamination.

Zinc evaporation coats tungsten carbide particles with metal binder, preserving grain size distribution and shape lost during conventional milling.

Dissolves silicate ores in molten alkali hydroxide to precipitate metal components, avoiding silica gel clogging.

Sequential partial oxidation of liquid baths removes contaminant metals from secondary feedstocks, lowering purification costs.

Pressure oxidizing sulphidic feed slurry at low solids content to precipitate arsenic and recover copper.

Biosurfactant-based bioleaching extracts metals from low-grade ores while reducing toxic chemical usage.

Recrystallizing phosphogypsum from hemihydrate to dihydrate in calcium salt solutions separates rare-earth metals, reducing toxic waste accumulation.

A two-stage countercurrent leaching method uses sulphuric acid and oxygen at atmospheric pressure to dissolve copper and zinc from chalcopyrite concentrate.

Sequential fayalite and lead oxide slag steps remove antimony and arsenic from copper bullion, enabling valuable metal extraction.

Reuse acidic barren leachate to recover scandium, lowering processing costs and improving metal recovery efficiency.

Automated heated chamber and agitator recover up to 85% solder purity while eliminating toxic fume exposure.

Formula I amide compounds selectively precipitate gold, platinum, tin, and gallium from mixed metal solutions, eliminating the need for toxic organic solvents.

Hydrolyzed polyimide polymers suppress scale formation in emitter lines and improve percolation uniformity through high clay content ore.

Amino acid-thiourea complexes reduce thiourea consumption and prevent ore passivation during precious metal leaching.

Phosphorous supplying material precipitates lithium phosphate from brine, resolving low yield and slow evaporation bottlenecks.

Styrene-divinylbenzene resins separate actinium from thorium and radium, preventing radionuclide loss during long-term operation.

Methane sulfonic acid dissolves lead oxides and carbonates into a soluble salt, avoiding high-temperature smelting.

An electrical separator enhances phase separation in a pulsed solvent extraction system, resolving carry-over issues that reduce recovery efficiency.

A pH-driven leaching process recovers rare earth elements from organically bound materials using controlled acidity and liquid recycling.

A ruthenium recovery process reduces oxide in hydrogen chloride gas to metallic form for dissolution.

Multi-stage conditioning attaches hydrophobic magnetic particles to nonferrous ores, resolving insufficient binding strength and low yields.

Alkaline permanganate oxidation converts insoluble chromium to a soluble form for selective leaching from metal ore slurries.

Immersing a temperature-resistant vessel into molten slag extracts thermal energy while preventing premature solidification via flux addition.

Replacing hazardous sulfur dioxide with amine-based lixiviants enables safe metal extraction from mine tailings while eliminating corrosive emissions.

A method for preparing leach feed material using reduction and ferric leaching steps to extract vanadium from titanomagnetite ores.