Which industrial process creates the Fluoride?

I was under the impression that the Fluoride production was a byproduct of the Nuclear processing industry (Uranium Hexafluoride) to produce weapons grade Uranium 235 along with the other byproduct of depleted Uranium. Teflon a long chain Fluoride plastic was also developed for gas storage vessel linings for the UF6.

The toxic byproduct of the nuclear arms industry has to be disposed of somewhere I guess.