Organic Compounds Purification/Separation/Stabilisation TRIZ Cases

Thin film evaporators distill hydrogenated sugar to bypass expensive catalysts and achieve 99% purity.

Ring magnets suspend magnetic particles to separate nucleic acids from FFPE tissue debris under non-chaotropic conditions.

Adding radical scavengers prevents radiolysis of unstable intermediates, thereby improving radiochemical yields in high-activity synthesis.

Replacing trimethylsilyl chloride with hexamethyldisilazane eliminates ammonia by-products that degrade product purity and complicate work-up procedures.

Weak acid buffers maintain radiochemical purity above 95% during autoclaving, preventing radiolysis degradation.

A quinone methide and ammonium salt composition inhibits free-radical polymerization of ethylenically unsaturated monomers.

Combining p-toluidine and m-toluidine accelerators stabilizes low-temperature curing while maintaining high-temperature load values.

Rotation distributes heat across the material bed to increase sublimation rates while preventing decomposition of thermally sensitive materials.

Converts oil-soluble calcium compounds into water-soluble forms using 2-oxopropanal derivatives for separation.

A hydrogen-occluding metal catalyst removes dissolved oxygen from isopropyl alcohol through chemical reaction.

Acid modified red mud catalyst expands surface area to increase isomerization yield, avoiding ethylene dimerization costs.

Treating lower-grade amino acids with 2-propanol reduces bioburden and enhances crystallinity to meet pharmaceutical standards without expensive feedstock.

Fatty acid ethyl and methyl esters dissolve plant materials to extract cannabinoids, reducing energy consumption and unwanted byproducts.

Dispersing liquid CO2 as fine emulsion droplets prevents buoyancy leakage and accelerates methane replacement in ocean sediments.

Recirculating mother liquid via a bypass line to a flash reactor increases conversion rate and reduces energy consumption.

pH-adjusted liquid-liquid extraction isolates aminoalcohols and glycols from taurine waste, enabling stream recycling to reduce purge volumes.

Washing organic solvents with aqueous hydrazine removes residual tribromides, preventing catalyst loss and allowing bromine regeneration.

Tetrahydroquinoline additives reduce the cetane number in Fischer-Tropsch fuels, mitigating high particulate and black smoke emissions.

Switchable hydrophilicity solvent converts between hydrophobic and hydrophilic states via carbon dioxide exposure for controlled liquid miscibility.

A reactive distillation column merges reaction and separation zones to increase mono-hydroxyethyl piperazine yield.

Base-catalyzed decomposition converts chloroform into separable ions, resolving azeotrope formation that prevents distillation-based purification.

A cooling system lowers acetylene temperature to reduce solvent vapor pressure, enabling a purifier to remove contaminants for high purity delivery.

Ionic liquid stabilizes copper halide to selectively remove acetylenes while preventing catalyst oxidation and reducing equipment costs.

Introducing ammonium acetate into the oxidation mixture suppresses impurities like 4-carboxybenzaldehyde, reducing purification complexity.

Salting out 4-chloro-2-fluoro-3-substituted phenylboronic acids into an organic solvent layer avoids concentration steps and raises yields above 90 percent.

Acetonitrile-water crystallization resolves R- and S-gossypol dienamine enantiomers, overcoming solvent limitations that previously prevented crystal formation.

A single continuous multi-stage distillation column separates dialkyl carbonate from aliphatic monohydric alcohol using integrated reactive distillation.

Hydroxy group-containing fluoroaromatic compounds suppress polymerization and coloring of perfluoro(2-methylene-4-methyl-1,3-dioxolane) during storage.

Metal catalysts and light irradiation decompose organic contaminants, eliminating the need for slow biological processes.

A temperature dropping unit recycles vapor heat from the cumene column to supply energy for the benzene column in a multi-stage distillation process.

Recovers heat from 1,2-dichloroethane vapor condensation to concentrate caustic soda, eliminating large cooling water requirements.

Bypass lines regulate flushing flow rates in simulated moving bed separation devices to minimize compositional discontinuities and improve product yield.

Replacing toxic solvents with ethanol and membrane separation achieves high purity while eliminating hazardous residues.

A purification process for iodixanol uses n-propanol solvent to crystallize crude product into high purity material.

A stabilizer composition combines quinone methides with nitroxyl radicals to protect unsaturated monomers.

Continuous pulsed electric field treatment lyses small aquatic plant cell walls to release oil and lipids.

Acetic acid catalyzes fructose conversion to 5-alkoxymethylfurfural in organic solvents, eliminating by-product formation and solvent separation steps.

Sequential SPE cartridges separate [18F]flutemetamol from its precursor, eliminating costly preparative HPLC equipment while reducing synthesis time.

A boronation method synthesizes L-BPA using N-protected halophenylalanine, a Grignard reagent, and bis(2-methylaminoethyl)ether.

High-boiling inert boiling oil in the rectification column sump prevents polymerization by reducing residence time and eliminating solvent recovery steps.

Segmented grid elements apply alternating voltage to shrink the ion depletion zone, resolving complex sample peaks.

A two-tower distillation system purifies acrylic acid using near IR spectrometry to reduce energy consumption and inhibitor usage.

A dividing wall column integrates a pre-fractionator to separate low, medium, and high boiling components in one vessel.

Differentiating tray open area ratios stabilizes temperature profiles and reduces methacrylic acid loss in continuous recovery processes.

Mechanochemical milling converts viscous oils into crystalline solids, resolving the inability to form multi-component structures from difficult compounds.

Alkanolamine neutralizes acidic by-products to prevent ligand degradation and precipitate formation during long-term storage.

Vacuum evaporation removes high-boiling impurities from N-substituted maleimide residue, preventing polymerization loss and eliminating wastewater generation.

Introducing antioxidants during synthesis stabilizes radioactive agents against radiolysis, enabling industrial-scale production with reduced ethanol content.

Triethylene glycol solvent enables extractive distillation to separate monoethylene glycol from diethylenetriamine, overcoming azeotropic limitations.