Is it better to have an excess of PCl5, or does having an excess of HF result in a higher yield of PF5?
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In the production of PF5, whether an excess of phosphorus pentachloride or an excess of hydrogen fluoride results in a better reaction efficiency, higher yield, and higher purity
With regard to such industrialization issues, people may spend a great deal of effort to develop them; what they tell you might be just one sentence, but it can be worth thousands of dollars, and it wouldn’t be an exaggeration to say that such a sentence is top-secret
Theoretically, if hydrogen fluoride is in excess, consideration should be given to recovering it
This post was last edited by qugd on 2023-1-18 at 13:32. The conversion from phosphorus pentachloride to phosphorus pentafluoride involves using fluorine to replace the chlorine. From the perspective of chemical equilibrium, it is necessary to have an excess of hydrogen fluoride; if there is an excess of phosphorus pentachloride, it is not possible to ensure that the product will be phosphorus pentafluoride, as phosphorus chlorofluoride will end up mixing in, causing difficulties in separation and purification. A practical synthetic method is to first synthesize phosphorus trifluoride, and then fluorinate it with fluorine to form phosphorus pentafluoride. The actual process isn’t as simple as the original poster imagines; it takes a great deal of money to obtain the specific parameters of the process package for this kind of technology. I guess you don’t know how phosphorus trifluoride is synthesized either.