Phosphorus Halides/Oxyhalides TRIZ Cases
- Lithium Difluorophosphate Synthesis Under Low-Moisture Reaction Control
Strict moisture control below 1,000 ppm in a two-step solvent reaction raises lithium difluorophosphate yield and purity while limiting impurities.
- Phosphorus Fluoride Synthesis Using Carbon Catalysis at Lower Temperatures
Carbon material catalyzes phosphorus fluoride synthesis to raise reaction efficiency, lower temperature, and cut energy use in PF3 and PF5 production.
- Phosphorus Pentafluoride Synthesis Without Chlorinated Intermediates
Direct HF reaction with phosphoric acid simplifies PF5 and LiPF6 production by removing chlorinated intermediates and disposal burdens.
- Difluorophosphate Preparation Using Ammonium Fluorination
A nonaqueous route forms dichlorophosphate, then uses ammonium fluorination and solvent switching to obtain high-purity difluorophosphate faster.
- InP Core-Shell Nanoparticle Aggregates for Narrow Red Emission
Core-shell InP nanoparticle aggregates use tuned ZnSe/ZnS shells to keep red emission narrow while maintaining 80%+ quantum yield.
- LFP/LFMP Chlorination Recovery for High-Purity Phosphorus Separation
Gas-phase chlorination converts LFP/LFMP black mass into separable iron chloride and chlorophosphorus compounds with low waste and high purity.
- Hexafluorophosphate Route to High-Purity PF5 Without HF Feedstock
Using P2O5 and sulfur trioxide instead of HF and PF5, this case shows safer, scalable production of high-purity hexafluorophosphate and PF5.
- Halophosphate Phosphor Composition for Low Chlorine Ion Elution
Acid treatment and shear processing cut chlorine ion elution in halophosphate phosphors, helping LEDs retain luminous flux over time.
- Phosphorus Fluoride Purification for Moisture-Free Semiconductor Etching
Pre-drying, sorbent cleanup, and vessel-wall protection keep phosphorus fluoride above 99.9% purity and prevent etch loss and contamination.
- Phosphorus Oxychloride Production From Phosphates Without Carbon Tetrachloride
Tetrachloroethene enables direct high-temperature conversion of phosphate feedstocks to phosphorus oxychloride with lower energy use and less waste.
- Difluorophosphate Production via LiPF6 and Carbonate Reaction
Reacting lithium hexafluorophosphate with a carbonate in a nonaqueous solvent produces difluorophosphate additives for secondary batteries.
- Silane-Coated Acid Chloride Masterbatch for Polymer Additives
Silane coating on acid chloride masterbatch reduces corrosivity and dusting while maintaining high additive concentration.