Crystallization Separation TRIZ Cases
- Lithium Hydroxide Purification Using Lower Alcohol for Fluoride Removal
Lower alcohol dissolution separates fluoride from crude lithium hydroxide, enabling high-purity lithium recovery from battery waste.
- Lithium Precursor Isolation by Gas Injection and Selective Precipitation
Non-reactive gas injection and selective precipitation separate lithium from transition metals, improving recovery yield and precursor purity.
- Acidic Metal Sulphidation for High-Purity Nickel and Cobalt Recovery
An acidic sulphidation route converts uncrystallized nickel and cobalt sulphates into high-purity sulphides with lower energy and material use.
- Cellulose Extraction Solvent for Precise Corn Sample Quantification
A DMSO-TBAF-TBAOH solvent system separates cellulose from starch in corn samples for more precise and reproducible quantification.
- Earth Material Thermal Activation for Higher Metal Ion Extraction
Plasma and microwave treatment rearrange earth materials before leaching, improving lithium and other metal ion recovery from dilute solutions.
- Nickel-Cobalt Sulphidation From Impure Waste Streams
Hydrogen sulphide precipitates nickel and cobalt sulphides in acidic liquor, improving recovery from impure waste streams.
- Selective Ionic Liquid Extraction of Transition Metals from Organic Residues
A heated ionic-liquid extraction, cooling, washing, and precipitation sequence improves recovery of metals such as molybdenum and vanadium.
- Lithium Cathode Recycling via Redox Mediator and Soxhlet Extraction
Redox mediators facilitate room-temperature relithiation of end-of-life cathodes while Soxhlet extraction removes PVDF binders without toxic decomposition.
- Hybrid Para-Xylene Process Using Toluene Solvent
Hybrid para-xylene production uses toluene as both desorbent and washing solvent across adsorption and crystallization stages.