Preparation By Hydrogen Halide Split-Off TRIZ Cases
- Gas-Phase Fluorination Catalyst for Co-Production of Fluorinated Olefins
Transitioning from liquid to gas phase eliminates waste liquid generation while extending catalyst life during co-production.
- Chromium-Zinc Oxide Catalyst for Fluorination Regeneration
A chromium-zinc oxide catalyst system enables gas phase fluorination with oxidizing agent regeneration.
- Non-catalyzed Liquid Phase Fluorination of Tetrachloropropene
Liquid phase fluorination of 1,1,3,3-tetrachloropropene with anhydrous hydrofluoric acid without a catalyst achieves high conversion rates under mild pressure.
- Gas-Phase Pyrolysis of Hydrofluorochloropropanes to Fluoropropenes
Thermal decomposition of hydrofluorochloropropanes produces fluoropropenes with high selectivity, avoiding catalyst complexity and contamination.
- HFO-1234yf Production via By-product Recycling
A chromium oxide catalyst enables simultaneous dehydrofluorination and isomerization of pentafluoropropane to produce HFO-1234yf.
- HFO-1234ze Preparation via Segmented Reactor Temperature Control
A segmented reactor enables precise temperature control for two-stage gas-phase fluorination of HCC-240fa to produce HFO-1234ze.
- Solid Catalyst for Trans-1-Chloro-3,3,3-Trifluoropropene Production
A solid catalyst mediates gas phase fluorination of halogenated C3 hydrocarbons to produce trans-1-chloro-3,3,3-trifluoropropene.
- Halocarbon Separation via Selective Freezing
Selective freezing isolates HCFC-244bb from HCFO-1233xf mixtures, bypassing azeotrope constraints for pure refrigerant intermediates.
- HFO-1234yf Production via Impurity-Free Dehydrochlorination
Replacing hydrogen gas with carbon-based reducing agents prevents catalyst deactivation and improves selectivity during HFO-1234yf synthesis.
- Azeotropic Distillation Separating HF and HFC-1243zf
Azeotropic distillation separates hydrogen fluoride from 3,3,3-trifluoropropene via phase transition, eliminating scrubbing waste.
- 1,1,2,3-Tetrachloropropene Synthesis via Gas-Phase Dehydrochlorination
Gas-phase catalytic dehydrochlorination eliminates aqueous waste and phase transfer catalysts while maintaining high selectivity for 1,1,2,3-tetrachloropropene.
- Extractive Distillation for 2,3,3,3-Tetrafluoro-1-propene Purification
Organic extraction agents modify relative volatility to separate 2,3,3,3-tetrafluoro-1-propene from impurities with similar boiling points.
- Pentachloropropane Purification for F-1234yf Synthesis
A composition of 99% 1,1,1,2,3-pentachloropropane with controlled impurities enables catalytic fluorination to produce high purity F-1234yf.
- Chromium Oxyfluoride Catalyzed Synthesis of Internal Fluorobutenes
Chromium oxyfluoride catalyzes halobutane conversion to internal fluorobutenes, resolving the trade-off between ozone safety and global warming potential.
- Chromium-Nickel Catalyst for Fluoroolefin Selectivity
Composite chromium-nickel catalyst on alumina support achieves high selectivity and conversion stability during dehydrofluorination.
- Isomerization Catalyst for Cis-HFO-1336 Yield
An isomerization catalyst converts trans-HFO-1336 into the desired cis-isomer.