Organic-Compounds/Hydrides/Coordination-Complexes Catalysts TRIZ Cases
- Acetic Acid Flash Separation Methyl Iodide Control
Flash vessel vapor stream maintains methyl iodide concentration to reduce hydrogen iodide impurities in acetic acid product.
- Transition Metal Catalysts for CO2 Copolymerization Selectivity
A transition metal catalytic system drives epoxy and carbon dioxide copolymerization to produce polycarbonate chains.
- Self-Assembled Catalysts for Olefin Polymerization
A self-assembled catalyst system uses supramolecular ligands to enable single-step synthesis of active phosphine-sulfonate complexes.
- Hydrocarbon Catalyst Regeneration via Ester Additive Pre-Sulfurization
A two-stage catalyst regeneration process deposits ester additives on the surface to restore activity.
- Ruthenium Catalyst for Nitrile Rubber Hydrogenation
Ruthenium complex with vinyl co-catalyst performs simultaneous metathesis and hydrogenation, eliminating gel formation and controlling molecular weight.
- LLDPE Film Composition Resolving Optical and Processability Trade-off
A multimodal LLDPE composition using a composite catalyst system improves processability without hazardous additives while maintaining optical clarity.
- Tungsten Oxometallacyclobutane Z-Selective Metathesis Catalyst
MAP ligands force metallacyclobutane substituents to one side, resolving low Z selectivity in terminal olefin coupling.
- Biocatalytic Microcapsules for Gas Conversion
Porous polymer beads encapsulate whole cells, converting gases into liquids without liquid media.
- Chromium Catalyst Fouling Reduction via Antifouling Co-catalyst
An antifouling co-catalyst reduces polymer fouling in a chromium catalyst system, maintaining 1-octene selectivity and catalytic activity.
- Gas Phase Hydroformylation Catalyst Activity Stabilization
A gas phase hydroformylation process uses water vapor to sustain catalyst activity and maintain high normal to branched aldehyde ratios.
- Titanium Citrate Catalyst for Polyester Thermal Stability
Titanium alpha-hydroxy carboxylate catalysts suppress depolymerisation to reduce acetaldehyde generation and COOH end groups in polyesters.
- Olefin Polymerization Catalyst Component Morphology Control
Catalyst component uses specific isomer precipitation aids to produce polyolefins with improved particle morphology and high activity.
- Hydrogenated Diene Polymer Latex Catalyst Recovery via pH Control
Adjusting latex pH to 5.0–8.0 forms an insoluble platinum complex, enabling rapid filtration and recovery of the hydrogenation catalyst.
- Thermo-latent Metal Catalysts for Selective Polyurethane Curing
Specific metal compounds with tailored ligands selectively catalyze polyurethane formation, resolving the trade-off between reaction speed and selectivity.
- Nanocellulose-Bentonite Hydrogel Catalyst for Borohydride Hydrolysis
A nanocellulose-bentonite hydrogel catalyst enables rapid hydrogen generation from borohydride at low temperatures.
- Non-aqueous Silver Catalytic Composition for Conductive Films
A non-aqueous silver catalytic composition generates conductive films through in-situ photoreduction of silver ions.
- Zinc Complex Catalyst for Non-Toxic Silicone Crosslinking
Replacing toxic alkyltin catalysts, the zinc complex system accelerates crosslinking speed while eliminating harmful metal residues in silicone elastomers.
- Vanadium Pyridine-Imine Complex for Diene Polymerization
A vanadium pyridine-imine complex catalyzes conjugated diene polymerization to produce high molecular weight polybutadiene.
- Tin-Titanium Catalyst Precursor for CO2 Conversion
A tin-titanium catalyst precursor converts carbon dioxide into dialkyl carbonate via alcohol activation.
- Nickel Metal Production via Rotary Reduction with Polymer Mediator
Rotary reduction of nickel particles using a water-soluble polymer mediator to produce free-flowing metal.
- Aluminoxane Synthesis via Allylic Alcohol Condensation
Substituted allylic alcohols mediate alkylaluminium condensation to produce aluminoxanes with controlled reactivity.
- Hydrotreating Catalyst Titania-Coated Alumina Support
Titania coating on alumina particles resolves the trade-off between high desulfurization activity and low raw material cost.
- Cobalt Catalyst C-H Activation Borylation
Replacing iridium with cobalt lowers costs while maintaining high conversion rates for arylboronic acid synthesis.
- Fluorinated Organometallic Activating Supports for Metallocene Catalysts
Fluorinated organometallic compounds modify porous mineral oxide supports, eliminating hazardous fluorination steps and improving polymer rheology.
- Thiophene-Fused Cyclopentadienyl Catalyst for Polypropylene
Transition metal compound with thiophene-fused cyclopentadienyl ligands polymerizes propylene monomers into polypropylene.
- SILP Catalyst for Hydroformylation Separation and Selectivity
Ionic liquid immobilized on porous support resolves trade-off between homogeneous activity and heterogeneous separation, enhancing stability.
- Bioalcohol Dehydration Catalyst for High Water Tolerance
Basic metal oxide catalysts dehydrate aqueous bioalcohols without acid deactivation, maintaining high regioselectivity.
- Metal-Based Catalysts for Direct C-H Bond Amination
Substituted dipyrrin ligands stabilize metal centers to prevent product inhibition during C-H bond amination.
- Metallocene-Iron Catalyst System for Bimodal Polyolefin Control
Segregates catalyst components to prevent interference, enabling high stiffness and toughness in polyolefins without sacrificing catalytic activity.
- Olefin Oligomerization Catalyst Deactivation via Organic Quenching
Organic quenching media deactivate olefin oligomerization catalysts without generating hydrochloric acid byproducts.
- Rhodium NHC Catalysts for Selective Hydroformylation
N-heterocyclic carbene ligands on rhodium centers suppress byproduct formation and eliminate phosphine oxidation sensitivity.
- Hydroconversion Process Using High-Halide Ionic Liquid Catalysts
A hydroconversion process uses an acidic ionic liquid catalyst with high-halide alkyl halides to enhance reaction selectivity.
- Ruthenium NHC Catalyst ROMP Process
A ruthenium compound with an N-heterocyclic carbene ligand facilitates ring-opening metathetic polymerization of cycloalkenes.
- High-Concentration Silver Impregnation Solution for Ethylene Oxide Catalysts
Ammonium salts and amino acids increase silver solubility in the impregnating solution, enabling higher silver loading while maintaining catalyst productivity.
- Neodymium Catalyzed Polybutadiene Branching Control
A neodymium catalytic system enables in situ polymerization of butadiene to produce polybutadienes with high 1,4-cis content and adjustable molecular weight distribution.
- Sulfonate-Based Polymer Electrolyte Membrane for Fuel Cells
A sulfonate-based compound creates a hydrophilic-hydrophobic phase separation structure within the polymer electrolyte membrane.
- Butadiene Telomerization Catalyst Induction Period Reduction
Pre-reduced palladium complex eliminates the slow Pd(II) to Pd(0) induction period, enabling immediate high-rate butadiene telomerization.
- Homogeneous Catalyst Solution for Selective 1-Hexene Production
Separate pre-catalyst solutions extend shelf life and reduce side products during selective 1-hexene production.
- Polymer-Coated Cerium Oxide Nanoparticles for Stable Redox Catalysis
Polymer-coated cerium oxide nanoparticles replace unstable hydrogen peroxide with stable redox catalysts, enabling safe decomposition of organic contaminants.
- Titanocene Catalyst Composition for Polymer Hydrogenation
A titanocene-based catalyst composition enables efficient hydrogenation of olefinic unsaturated double bonds in polymers.
- Bridged Metallocene Catalyst Comonomer Incorporation
Segmented catalyst compositions with specific ligand structures boost comonomer incorporation efficiency for low-density polyolefins.
- Solid-Supported PNP-Cr Catalysts for Ethylene Tetramerization
Segmenting PNP-Cr complexes on porous supports confines reaction environments, reducing reactor fouling while maintaining 1-octene selectivity.
- Chiral Diazaphospholene Catalyst for Imine Reduction Enantioselectivity
Diazaphospholene catalysts with specific chiral substituents drive asymmetric imine reduction to produce enantiomerically enriched amines.
- Direct Diisobutene Carbonylation via Palladium Catalyst
One-step palladium catalyzed reaction converts diisobutene to carboxylic acid without intermediate separation steps.
- Spherical Dialkoxy Magnesium Support Preparation
Nitrogen halide mediates magnesium alcohol reaction to produce smooth spherical dialkoxy magnesium supports.
- Group IV Transition Metal Catalyst for High Heat Resistance Olefin Polymers
Specific ligand coordination in the catalyst composition increases crystallinity and melting points above 100°C, resolving low heat resistance trade-offs.
- Brønsted Acid Treatment of Crystalline DMC Catalysts
Treating crystalline double metal cyanide catalysts with Brønsted acid enhances catalytic activity for polyether polyol production.
- Polyurethane Foam Emissions Reduction via Catalyst Selection
Specific tertiary amine and carboxylic acid combinations minimize chemical emissions while maintaining physical properties in flexible polyurethane foam.