Preparation By Ester-Hydroxy Reaction TRIZ Cases

A chemical reactor with a curved top surface directs microwave energy to heat liquid content uniformly.

Continuous alcoholysis and transesterification stabilize product quality and increase DMT yield while minimizing energy consumption.

A chemical reaction device maintains a constant liquid surface area within a cylindrical reactor, preventing efficiency loss when content levels change.

A continuous reactor separates polymer particles by size to depolymerize waste into monomer liquid.

A catalyst composition of alkane-sulphonic acid and sulphuric acid drives fatty acid esterification.

Esterifying sebacic acid by-product fatty acids yields stable polyurethane envelopes that lower costs and prevent environmental pollution.

Microbial fermentation produces poly-3-hydroxypropionate biomass, which pyrolysis converts to high-purity acrylic acid without petroleum feedstocks.

Mechanical vibration in a three-dimensional microball mill enables transesterification below 50°C, reducing energy consumption and process complexity.

An integrated reactor combines direct esterification and trans-esterification in one unit to streamline chemical synthesis.

Depolymerizes polyethylene terephthalate waste using a catalyst and continuous oxidizing atmosphere to produce purified bis(2-hydroxyethyl) terephthalate.

Replacing Sonogashira coupling with a direct Wittig reaction eliminates expensive reagents and low-temperature requirements while improving yield.

Transesterification converts alkanol impurities into separable products, eliminating complex distillation steps and preserving yield.

Long chain alcohols digest polyethylene terephthalate into alkyl terephthalates for use as asphalt binder additives.

Polymer additives enable rapid glycerin separation from methyl ester without complex mechanical equipment, reducing process time.

A chemical recycling device supplies molten polymer directly to a molding machine, eliminating intermediate solidification steps.

Macrocyclic protease inhibitor synthesis uses olefin metathesis to form the central cyclopentyl moiety for high yield production.

Epoxidized fatty acid esters replace petroleum phthalates in polyvinyl chloride, improving heat stability and reducing exudation at high loadings.

Mesoporous CeO2-loaded Au catalyst enables direct oxidative esterification of aromatic alcohols, eliminating high temperature and pressure requirements.

Sequential parallel batch reactors resolve productivity and stability contradictions in non-phthalate plasticizer manufacturing.

C9 and C10 trimethylolpropane esters maintain low viscosity below 35 mm²/s while ensuring high flash points above 200°C.

Oleaginous bacteria convert pretreated coal into lipids, reducing capital costs and carbon emissions associated with conventional thermal processes.

Reducing nitrogen content in glycerol minimizes NOx emissions during high temperature oxidation.

Ionic liquid adsorbents remove impurities from recycled polyester depolymerization liquids to enhance bis-2-hydroxylethyl terephthalate hue.

Activated carbon selectively removes trace contaminants from fatty acid esters, eliminating heavy metal impurities that degrade product taste and safety.

Hydroesterification converts renewable alkyl lactates into acrylate esters, replacing petroleum feedstocks and reducing energy costs.

Asymmetric weir heights on partition plates prevent shortcut flow of unreacted content, ensuring complete microwave irradiation and higher reaction yield.

Metal oxide catalysts chemically transform monoglycerides and sterol glycosides in fatty acid alkyl esters, eliminating frequent adsorbent regeneration.

Base catalyzed transesterification converts high free fatty acid feedstocks into biodiesel and glycerin, eliminating excessive salt generation.

Glycolysis depolymerization removes pigments from opaque PET, restoring mechanical strength lost during conventional recycling.

Composite anhydrosugar alcohol ester plasticizer prevents white substance generation during storage while maintaining PVC resin plasticity.

Distillation removes glycol byproducts during depolymerization, cutting energy use and reaction time while ensuring complete monomer conversion.

A ZnFe2O4 spinel catalyst enables one-step simultaneous esterification and transesterification of fatty acids and triglycerides.

Phosphoric acid protonates fatty acid ethyl esters to accelerate iodination, reducing reaction time compared to slow conventional methods.

Converts surplus glycerin into n-propanol reactants via hydrogenation, eliminating storage liabilities and reducing methanol costs in biodiesel manufacturing.

Combining cyclic tertiary amine and zinc catalysts with magnesium oxide adsorption removes residues, ensuring storage stability and optical transparency.

Terephthalic diester mixture with C5 and C9 radicals lowers gelling temperature while reducing volatility.

Selective alcohol removal during transesterification controls ester composition, reducing statistical deviations and improving heat resistance.

Dialkyl phthalates enable selective thermal cracking of Michael adducts, reducing raw material loss and avoiding antifouling agent pollution.

Titanate catalyst extraction in the first distillation column reduces process complexity and energy consumption while achieving over 99.5% product purity.

Base-catalyzed transesterification converts bis(hydroxyethyl) terephthalate to dimethyl terephthalate at low temperatures.

Epoxidized fatty acid alkyl esters replace phthalates in polymer resins through controlled epoxidation.

Internal olefin ester mediates metathesis to resolve high catalyst cost and low efficiency.

Replacing toxic AD-mix-beta with Grignard reagents reduces synthesis steps and toxicity while maintaining high yield.

Zirconium acetylacetonate catalyzes transesterification to produce high-purity allyl methacrylate without nitrogen inhibitors.

A poly(butylene terephthalate) copolymer combines dimethyl terephthalate residual composition with 1,4-butanediol to form a material system.

Liquid glycerin cooling suppresses reverse reactions during esterification, maintaining high monoglyceride concentration and reducing purification loads.

Solvent-free transesterification of acrylates with biphenyl alcohols reduces polymerization risks and purification costs.