Organic Compound Preparation TRIZ Cases
- Ethanol and Protein Recovery from Rice Distillery By-products
Process treats distiller wet grain with cellulase to release trapped proteins, resolving waste issues while maintaining ethanol production.
- Methanol Synthesis Segmentation for Inert Gas Management
Segmenting synthesis gas feed across two units manages inert accumulation to boost methanol production efficiency.
- Zirconium Chiral Catalyst for S-Indoxacarb Enantioselective Synthesis
A zirconium chiral catalyst system enables asymmetric synthesis of tert-butyl hydroperoxide intermediates.
- Glycol Synthesis via Segmented Silver-Copper Catalysis
Segmenting the reaction into dehydration and hydrogenation steps with distinct catalysts prevents by-product formation while maintaining high glycol yield.
- Desflurane Purification via Azeotropic Distillation
Azeotropic distillation and phase transitions separate desflurane from hydrogen fluoride without water washing, enabling HF recycling.
- Norbornyl Acrylate Synthesis via Boron Trifluoride Catalysis
Boron trifluoride catalyzes norbornene and acrylic acid reaction to yield high purity norbornyl acrylate.
- Continuous-Flow L-Carnitine Synthesis via Microreactor Segmentation
Segmented microreactors resolve batch inefficiencies by enabling continuous flow synthesis of L-carnitine with improved safety and yield.
- Acylsulfamoylbenzamide Synthesis via Chlorinating Agent
Two-step acylsulfamoylbenzamide preparation uses thionyl chloride to form acid chloride intermediates for high-yield amide coupling.
- Hydroformylation Catalyst Ligand Control
Tetraphosphine ligands adjust the normal to iso aldehyde ratio, eliminating costly catalyst replacement and precious metal recovery.
- LDH Precursor Catalyst for CO2 Hydrogenation
Thermal treatment of layered double hydroxides generates small copper clusters, improving methanol production efficiency over standard Cu/ZnO systems.
- Secondary Alkyl Acrylate Adhesives for Low Surface Energy Substrates
Composite monomer blend depresses crystalline temperature to resolve the trade-off between adhesion strength and tackiness on low surface energy substrates.
- Catalyst Composition for Aromatic Dicarboxylic Acid Production
A cobalt, manganese, zirconium, and bromine catalyst composition enables aromatic dicarboxylic acid production via liquid-phase oxidation.
- Allyl Alcohol Production Distillation for Catalyst Protection
Distillation removes heavy impurities like allyl diacetate from allyl acetate streams, preventing catalyst deactivation during hydrolysis.
- Vinyl Acetate Reactor Flame Arrester Oxygen Safety
Flame arresters allow higher oxygen levels in vinyl acetate reactors, boosting yield while preventing fire risks.
- Acrylonitrile Dimer Catalyst Separation via Recrystallization
Cooling dimerized reactants crystallizes the phosphorus-based catalyst, preventing heat-induced side reactions that lower acrylonitrile dimer yield.
- Catalytic Oxidation of Aldonic Acids to Aldaric Acids
Controlled oxidation reaction inhibitors and unreacted component recycling prevent catalyst deactivation during prolonged aldaric acid production.
- Direct Fluorination of Benzoic Acid Using Concentrated F2
High concentration fluorine gas eliminates inert diluent barriers, improving heat transfer and scalability for direct benzoic acid fluorination.
- Glycerin Dehydration Catalyst Coke Management
Oxidation removes coke carbon from the catalyst surface to extend lifespan and maintain activity.
- Hybrid Heat Integration for Dimethyl Carbonate Production
A hybrid heat integration process combines internal and external thermal recovery with a vapor recompression heat pump to enhance energy efficiency.
- Enriched Carboxylic Acid Process for Terephthalic Purity
A process produces enriched carboxylic acid compositions via crystallization and enrichment zones.
- Catalyst-Free Propiolate Ester Crosslinking for Homogeneous Thin Films
Self-crosslinking propiolate esters eliminate catalyst-induced inhomogeneity to produce uniform, stable thin films.
- Selective Acylation of Aminophenol Using Ketene
Ketene acylation converts aminophenol to APAP, eliminating hazardous effluent generation and reducing recovery steps.
- Lubricating Oil Composition for Automatic Transmissions
A lubricating oil composition with specific base oil paraffin and naphthene ratios enhances low temperature fluidity.
- Diacerein Purification via Hydrophobic Resin Adsorption
Hydrophobic resin adsorption isolates diacerein from genotoxic impurities like aloemodine, achieving purity below 1 ppm for pharmaceutical use.
- 3-Arylbutanal Synthesis via Vilsmeier-Haack Formylation
Vilsmeier formylation and NaBH4 reduction synthesize 3-arylbutanals without toxic catalysts or extreme conditions.
- Multi-Layer Methanol Reactor Catalyst Segmentation
Segmented catalyst layers control exothermic heat distribution to prevent hotspot formation and maintain stability during methanol synthesis.
- Molten Salt Catalyst for Lactic Acid to Acrylic Acid Conversion
A molten salt catalyst converts lactic acid into acrylic acid via a three-step liquid phase process using bromide anions.
- Shaped Catalyst Bodies for Wax Ester Hydrogenation
Extruded catalyst bodies enable wax ester hydrogenation at lower pressures, reducing energy consumption and equipment complexity.
- Catalyst-Driven Esterification Yield and By-product Reduction
A catalyst promotes monomeric ester formation while suppressing oligomeric by-products in acid-alcohol reactions.
- Methanol Pre-Reactor Stage Reducing Compressor Power
A pre-reactor stage converts synthesis gas into methanol before compression, reducing residual gas volume and lowering compressor power consumption.
- Radical Halo-de-carboxylation Using TCCA and DCCA
TCCA or DCCA reagents drive radical halo-de-carboxylation to produce organic halides, eliminating heavy metal contamination and water sensitivity.
- Diphenylmethane Diamine Isomer Control via Parameter Adjustment
Dynamic parameter adjustment maintains complete rearrangement reaction and minimizes by-products when changing diphenylmethane diamine production capacity.
- Acrylic Acid Benzoic Acid Separation via Crystallization
Crystallization removes benzoic acid impurities from acrylic acid, reducing energy consumption and improving polymer purity.
- Methyl Methacrylate Purification Using Formaldehyde and Resin
Sulphonic acid resin catalyzes formaldehyde reactions with isobutyraldehyde and dienes, enabling distillation separation of similar boiling point contaminants.
- Deuterated Ethanol Preparation via D2 and Catalyst
Process converts acetic acid to deuterated ethanol using D2 gas and a transition metal catalyst.
- Terephthalic Acid Diester Production via Pre-Suspension and Recirculation
A terephthalic acid pre-suspension enters a reactor with an external heat exchanger for recirculation.
- Vertical Multi-Tube Heat Exchanger Polymerization Prevention
Protruding heat transfer tubes form a liquid flow layer that contacts distillate gas, preventing polymerization product accumulation in the condenser.
- Smiles Rearrangement via Anion Exchanger Resin for Contrast Agent Synthesis
Anion exchanger solid phase mediates Smiles rearrangement of tri-iodine ether precursors in aqueous solvent systems.
- Film-Type Dehydrogenation Catalyst for Aldehyde Selectivity
A film-type dehydrogenation catalyst maintains high aldehyde selectivity and conversion by keeping primary alcohol partial pressure at 50 kPa or lower.
- Pd-Mo-Sn Catalyst for Selective Hydrodeoxygenation
Palladium-molybdenum-tin catalysts convert biomass-derived sugars into high-purity oxygenated compounds while suppressing unwanted alkane formation.
- Nitrobenzene Waste Water Purification via Thermal Decomposition
Thermal pressure decomposition of alkaline waste water minimizes ammonia formation and sodium hydroxide consumption for efficient biological treatment.
- C17 Alcohol Esterification for Low-Color Methacrylates
Esterifying C17 alcohol mixtures with acrylic acid via azeotropic distillation controls branching and reduces color numbers in the final product.
- Palm Oil Polyol Synthesis for Rigid Foam Mechanical Strength
A palm oil polyol synthesis method using epoxidation and glycerolysis to produce rigid foams with enhanced mechanical properties.
- Ozone-Activated Nanoporous Gold Catalyst Selectivity
Elevated ozone treatment activates nanoporous gold catalysts for stable alcohol oxidation.
- Nitro-Coordinated Polyoxometalate Catalyst for Selective Alkene Cleavage
Nitro-coordinated polyoxometalate catalysts cleave alkene carbon-carbon double bonds to generate aldehydes and ketones.
- Haloolefin Fluorination with Anhydrous HF
Anhydrous hydrogen fluoride enables high fluorine concentrations to increase reaction rates while suppressing dimerization and isomerization side reactions.
- Chiral Separation of Pyrrolidine Arginase Inhibitors
Selective crystallization resolves enantiomers in complex pyrrolidine synthesis, achieving high purity arginase inhibitors without excessive process complexity.