Preparation By Ester-Hydroxy Reaction TRIZ Cases

Convert beta-hydroxyalkanoate bottoms with mono-alcohols to produce alpha-beta unsaturated carboxylic acid esters, eliminating waste disposal costs.

A 4-methyl-5-vinylthiazolyl polymerized spherical ionic liquid catalyst enables continuous reactive distillation for esterification processes.

Methacrylated compounds derived from recycled PET enable high-content polymer integration into energy curable coating compositions.

A (meth)acrylate production system uses reflux and liquid separation to collect and reuse raw materials.

UMAKAT heterogeneous catalyst eliminates complex post-reaction treatment by enabling efficient transesterification at mild temperatures.

Metal carbonyl catalysts enable direct conversion of epoxides to acrylic acid, eliminating hazardous beta propiolactone isolation steps.

Pre-separating polyunsaturated fatty acid esters prevents cyclohexadiene formation during metathesis, ensuring high product purity.

Reduced pressure distillation removes by-products from dialkyl terephthalate reactors, preventing accumulation and enabling alcohol reuse.

Replacing sodium borohydride with a skeletal copper catalyst eliminates environmental harm while improving selectivity during polyester reduction.

Solid catalysts enable selective transesterification of castor oil, resolving environmental trade-offs while maintaining reaction efficiency.

A catalyst-free transesterification process using supercritical alcohol conditions to produce high-quality biodiesel from natural oils.

A falling liquid film reactor generates interfacial area through counter-current flow to produce fatty acid alkyl esters.

Solvent-based separation replaces water extraction to resolve trade-offs between separation purity and water consumption, achieving high yield.

VolCat depolymerization recovers polyester monomers and metallic components from multicomponent media, sanitizing data while preventing contaminant degradation.

Conditioning colored PET via premixing lowers stirring power and simplifies pigment removal during depolymerization.

A distillation process uses a C6 to C22 alcohol feed to separate methanol from methyl acrylate mixtures.

Crystallization separates methyl methacrylate from impurities that distillation cannot remove due to similar boiling points.

Chiral pool synthesis of orexin-2 receptor antagonists establishes stereochemistry early to resolve purity versus complexity trade-offs.

A radiation-sensitive resin composition with phenolic hydroxyl groups and acid-dissociable units enhances energy absorption and solubility contrast.

Sodium glycoxide catalyzes PET depolymerization, achieving high dimethyl terephthalate yields while minimizing energy consumption.

Heating lactate esters with acetates using a transesterification catalyst produces methyl 2-acetoxypropionate while eliminating water-induced corrosion.

A tubular reactor system operates under supercritical conditions to facilitate efficient esterification reactions.

Segmented catalyst complexes with magnetic cores resolve separation bottlenecks, enabling catalyst recycling and improved yield in polymer degradation.

Segmented reactor stages suppress dimer formation to boost BHET yield and eliminate material loss during PET recycling.

Adding free fatty acid source enables base catalyst to convert crude oils, eliminating slow acid pre-treatment steps.

An iron complex catalyst with specific ligands drives transesterification of polyhydric alcohols to (meth)acrylate esters.

A fiber conduit reactor constrains one fluid phase to wettable fibers while a second stream flows over the surface.

Replacing zinc acetate with carbonate or amidine catalysts reduces reaction temperature and methanol volume while tolerating impure scrap feeds.

Adsorption removes pigments from glycolysis effluent to produce decolourized purified BHET monomer.

Staged pressure reduction condenses methanol vapour at higher temperatures, preheating process streams and reducing energy consumption.

Transesterifying poly-(R)-3-hydroxybutyrate with alcohol to form esters and diols for producing enantiomerically enriched (R)-3-hydroxybutyl (R)-3-hydroxybutyrate.

Converting hydroxycarboxylic acid recovery bottoms into valuable alkyl hydroxyalkanoates via catalytic esterification, reducing waste disposal costs.

A reactor level control method compensates volume changes using reaction conversion data and density models.

A PEBAX-based organic solvent nanofiltration membrane separates homogeneous catalysts from ester product mixtures.

Aliphatic hydrocarbon solvent drives single-vessel transesterification, resolving biphasic mixing bottlenecks through distinct phase separation.

A curable composition uses transesterification of diglycerin with monofunctional acrylates to achieve low viscosity and rapid curing.

Filtration separates solid cyclic amine and zinc catalysts from transesterification products, eliminating complex dehydration operations that reduce yield.

Melting waste polyester enables homogeneous liquid-liquid alcoholysis, reducing depolymerization time and improving Dimethyl Terephthalate yield.

Converts depolymerized PET into liquid BHET at 70 to 90 degrees Celsius, eliminating energy-intensive drying and flaking steps.

Reclaimed carpet polyester reacts with long-chain alcohols to produce terephthalate esters and diols, preventing hydrolysis via moisture scavengers.

A plasticizer composition improves mechanical properties and migration resistance in resin systems.

A stoichiometric reaction of unprotected amino acids with fatty alcohols produces ionic amino acid esters in a single step.

Beta-lactone condensation polymerization yields high-biocontent sulfur- and phosphorus-containing polymers from renewable feedstocks.

Combining cyclic tertiary amines and zinc compounds eliminates toxic catalysts, preventing saponification and boosting yield.

Polyester polyols derived from natural oils use multifunctional initiators to control molecular weight and hydroxyl functionality.

Titanium alkoxide catalyzes isosorbide transesterification, minimizing by-products and enabling high-purity dimethacrylate synthesis.

Ambient alkoxide catalysis converts polyethylene terephthalate waste into dimethyl terephthalate, bypassing the energy costs of thermal esterification.

Borohydride reduction during transesterification yields low Pt-Co color epoxidized fatty acid esters, replacing petroleum phthalates with renewable feedstocks.

Continuous diester production unit recovers thermal energy from gas phase streams via integrated heat exchange devices.