Preparation By Hydrogen Halide Split-Off TRIZ Cases

See how HFO-1234yf compositions with controlled trace compounds achieve low global warming pote

See how fluorinated Cr2O3 or Cr/Ni catalysts selectively produce E-HFO-1234ze from HFC-245fa, m

See how oxygen-assisted dehydrofluorination suppresses Z-isomer formation in HFO-1234ze product

See how gas-phase catalytic dehydrofluorination with oxygen controls isomer ratios in HFO-1234z

See how catalytic dehydrofluorination with oxygen-containing gas produces HFO-1234ze with contr

See how fluorinated chromium oxide catalysts selectively produce E-isomer HFO-1234ze, eliminati

See how HFO-1234yf compositions with controlled trace compounds achieve low global warming pote

See how hydrogen fluoride replaces antimony trifluoride to produce 1232xd efficiently, reducing

See how gas-phase catalytic dehydrofluorination converts Z-isomer byproduct into E-HFO-1234ze,

See how catalytic dehydrofluorination with oxygen selectively decomposes Z-isomer, producing HF

See how catalytic dehydrofluorination with in-situ isomerization produces HFO-1234ze and HFO-12

Low-GWP HFO-1234yf blends use controlled trace co-components to preserve heat-transfer and refrigeration performance without full purification.

Morpholine or trialkyl phosphate stabilizers suppress chloropropene decomposition, acid formation, and metal-container corrosion during storage.

A plated iron-base and nickel-rich reactor lining cuts corrosion below 1 mm/year in chromium-catalyzed gas-phase fluorination.

Gas-phase dehydrofluorination with fluorinated Cr2O3 or Cr/Ni catalysts shifts HFC-1234ze production toward the E-isomer and cuts extra separation steps.

A three-step fluorination and dehydrochlorination route raises HFO-1234yf yield, enables recycle, and recovers valuable by-products.

A chlorine-catalyzed gas-phase HF reaction converts low-reactivity chlorinated propane intermediates into trans-1-chloro-3,3,3-trifluoropropene.

Using an HCFC-244bb and water azeotrope, this case removes impurities by phase separation and distillation to improve HFO-1234yf purity.

Adding a co-reactant that consumes hydrogen fluoride helps sustain hydrofluorocarbon conversion and limit catalyst deactivation and carbon deposition.

A vapor-phase HCl process with catalysts produces HCFO-1224yd(Z) selectively, cutting aqueous waste, isomerization steps, and cost.

Chromium-based vapor-phase catalysis converts hard-to-separate HCFO-1233zd(Z) and HCFC-244fa mixtures into HCFO-1233zd(E), cutting waste.

A vapor-phase HCl process with chromium-based catalysts produces 1224yd(Z) selectively while cutting aqueous waste and production cost.

A stabilizer suppresses HCC-140 and HCO-1130 decomposition during fluorination, improving HCFC-142 yield, selectivity, and catalyst life.

A staged route from CTFE or HFO-1123 uses hydrogenation, dehydrohalogenation, and cis-to-trans isomerization to limit byproducts and raise HFO-1132E purity.

Keeping water in the fluoroethylene feed at 150 ppm or less improves fluoroethane selectivity while limiting reactor blockage and corrosion.

Selective fluorination and dehydrohalogenation raise 1234yf yield while avoiding hydrogen-related safety and cost issues.

Using TCE dimer as both solvent and intermediate enables scalable chlorofluorobutane production while converting a harmful by-product into etching gas feedstock.

Larger pore volume and diameter in a chromia-zinc catalyst improve mass transfer, activity, and stability in fluorinated hydrocarbon production.

Using α-alumina with controlled Lewis acid sites, this case raises fluoroolefin conversion while limiting long-term catalyst deactivation.

Low-melting organic halide salts simplify halogenated butadiene synthesis, easing separation, cutting wastewater, and enabling base recycling.

Vapor-phase HF fluorination with a chromium catalyst enables chlorine-free hexafluorobut-2-ene production with high selectivity and recovery.

A constant-boiling HCC-240aa/HF mixture avoids fractionation and supports trifluorochloropropene production with stable industrial handling.

Liquid-phase HF with SbF5 drives near-complete 1233xf to 244bb conversion, cutting by-products and costly isomer separation.

A blended HFO-1234yf composition cuts global warming potential and flammability while maintaining refrigeration and heat transfer performance.

Selective α-alumina catalysis lowers HFC-143a and chlorinated impurities in trifluoroethylene to suppress acid generation and metal corrosion.

A silicon-aluminum molecular sieve catalyst lowers DCE pyrolysis temperature while maintaining high VCM selectivity and reducing coking.

Catalyzed fluorination and olefin coupling routes improve scalable production of a low-GWP, low-ODP heat transfer fluid candidate.

Organic co-feed in vapor-phase fluorination suppresses oligomerization, cuts byproducts, and extends catalyst life in HFO-1234yf production.

Using chlorinated feedstocks and high-HF fluorination, this case improves HFC-143 selectivity while lowering raw material cost.

Controls HFC-143a and HFO-1225zc impurities in trifluoroethylene to suppress acid generation, corrosion, and instability in metal-containing systems.

An HCFO-1233xf-water azeotrope enables phase separation and distillation to remove water impurities before catalyst-sensitive HFO-1234yf conversion.

Roasting in a nitrogen-containing atmosphere removes carbon deposits while preserving catalyst structure, strength, and activity.