Why can't you prepare Boron Trifluoride by reacting B2O3 with Carbon and Fluorine?

B2O3 + 3C + X2 ---> 2BX3 + 3CO

Why won't this work with Fluorine?

(This is not a duplicate, as the question being referred to is merely a method to synthesize Boron Triflouride. This question was concerned with why it can't be created using the given process.)

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    $\begingroup$ Pretty much any reaction involving F2 on either end is a bad idea. $\endgroup$ – Ivan Neretin Jul 1 '19 at 18:50
  • $\begingroup$ Valid Point. Theoretically, though... Would it be possible? $\endgroup$ – Aditya Pathak Jul 1 '19 at 18:52
  • $\begingroup$ Yes, though I don't believe it will stop at CO. $\endgroup$ – Ivan Neretin Jul 1 '19 at 18:55
  • $\begingroup$ That seems possible. Either that, or it's because BF3 is a gas, and would be difficult to seperate from CO :D. Thanks! $\endgroup$ – Aditya Pathak Jul 1 '19 at 18:56
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    $\begingroup$ More likely you'll get CF4 $\endgroup$ – Waylander Jul 1 '19 at 19:14