Organic Compound Preparation TRIZ Cases

A solid selective oxidation catalyst converts methanol and ethanol mixtures into unsaturated aldehydes through direct synthesis.

Vacuum evaporation prevents crystallization encrustation while maintaining low energy consumption.

Optimizing sodium carbonate particle size distribution improves polymer color and reduces toxic p-xylene residues during polyether ether ketone synthesis.

A copper dehydrogenation catalyst modified with a potassium salt of a weak acid promotes aldehyde desorption.

Supergravity rotating bed reactor drives oxidative esterification of nitrogen oxides and methanol into methyl nitrite for dimethyl oxalate synthesis.

A continuous glycol synthesis process uses an external recycle loop to contact saccharides with a retro-aldol catalyst before hydrogenation in the main vessel.

A distillation column lowers reflux ratio to boost phenol production capacity.

A heterogeneous catalyst complex converts carbon dioxide to formic acid and lactic acid using hydrocarbon reactants.

Merging sequential reactions into a single pot eliminates intermediate isolation, reducing synthetic route complexity while improving yield and purity.

Polyols convert difficult-to-separate aldehydes into cyclic acetals, enabling efficient methyl acetate purification for acetic acid production.

Segmenting the reaction into distinct stages optimizes selectivity while recycling vapors to reduce water consumption.

A nicotinamide dummy template molecularly imprinted polymer selectively adsorbs pesticides from tea extracts.

Segmented synthesis of m-diamide compounds avoids long routes and low yields by using quantitative reactions at mild temperatures.

Nitrogen-doped porous carbon composite material disperses noble metal particles within its passages, preventing agglomeration and improving catalytic activity.

Controlled crystal size distribution and Si/Al ratio in zeolite agglomerates resolve the contradiction between mechanical strength and separation selectivity.

A coupled reactor-distillation system removes water from oxidative esterification by recycling a low-water overhead stream to the reaction vessel.

A nanofiltration membrane filters butanol-containing solutions, reducing distillation energy consumption by removing sugars and salts before evaporation.

Hydrotalcite-derived catalysts convert wet ethanol feedstocks into 1-butanol without requiring prior drying.

Tertiary amine treatment in C3-C4 alcohol converts hydrochloride salt to 0.5 hydrate crystals for industrial processing.

Segmented reflux cycles boost amino acid methyl ester yields while cutting methanol waste.

Continuous Raney cobalt hydrogenation eliminates intermediate workup steps, reducing energy consumption and byproduct formation during diol synthesis.

A treatment system mixes concentrated hydrochloric acid with glycerin wastewater to precipitate salt and recover the reagent through filtration.

Acid-stabilized silica supports copper oxide to drive ketone hydrogenation at lower pressures, avoiding chromium toxicity and by-product fouling.

A nickel catalyst complex maintains high activity during hydrocyanation by controlling water concentration within the reaction zone.

Segmented chlorination manages L-Melphalan toxicity while enabling scalable Melflufen production.

Indium-based catalysts convert carbon dioxide to methanol, resolving deactivation issues found in conventional copper-zinc systems.

Azeotropic distillation of acrylic acid minimizes equipment corrosion by reducing formaldehyde levels below 0.1 percent in the aqueous feed stream.

Hydroxylamine converts cyclohexanone to oxime, resolving unfavorable relative volatilities in KA oil distillation.

Decarboxylating levulinic acid using a non-precious metal catalyst reduces production costs while maintaining high yields.

A solid heterogeneous catalyst uses an organic ligand polymer to disperse rhodium atoms for olefin hydroformylation reactions.

Inverted addition of halocarboxylate to amine-base solution eliminates hydrolysis step, reducing salt byproducts.

Acetic or trifluoroacetic acid inhibits des-ethyl impurities during Clomiphene chlorination, achieving purity below 0.10% and a trans-to-cis ratio up to 99:1.

Sequential metathesis, hydrolysis, and hydrogenation steps reduce secondary amine impurities to enable efficient polymerization of synthesized amino acids.

Separates amines with similar boiling points by converting them to amides for distillation, then recovering high-purity amines via transamidation.

A methanol removal distillation column with a phase separator lowers equipment costs by separating methanol from acetone without multiple columns.

Cardanol-derived phenol derivative modifies lubricating oil base stock to resolve oxidation stability and low-temperature fluidity trade-offs.

Strong sulfonic acids catalyze direct terephthalic acid conversion while a fractionating column eliminates foaming by removing water.

Iron catalysts replace precious metals in transfer hydrogenation, lowering operating costs and eliminating high-pressure equipment requirements.

Impregnated biomass contacts supercritical olefins to synthesize levulinic acid esters.

Thermal dissociation of Michael adducts within the reactor reduces residue viscosity and lowers purification costs for crude acrylic acid.

A polyol initiator mixture combines high and low melting point alcohols to enable efficient alkoxylation and reductive amination.

Metallated MOF catalysts enable single-step branched enal synthesis, eliminating multi-reactor complexity and catalyst degradation.

Mixed oxide catalysts enable single-step oxidative cleavage of unsaturated fatty acids using molecular oxygen.

A complex oxide catalyst containing molybdenum, vanadium, and antimony produces acrylic acid via gas phase oxidation.