[Bill321]

I tried to look for any relevant literature, but had no luck. Can someone please help? Thanks

[Arkcon]

Well, this is more of a general chemistry question, instead of a nuclear chemistry question.  So, I don't know what your literature sources are likely to be.  Can you begin to answer this question for your self?  Start with what sort of reaction are you expecting -- double replacement, or red-ox?  Can you compare the electronegativities of uranium and cobalt?  See if that gives you a hint?

[Enthalpy]

UO₂ is an obstinate solid. Under what conditions does CoF₃ come in contact? A furnace?

[gippgig]

CoF₃ is a strong fluorinating agent. I would expect (educated guess) it to form uranyl fluoride:
UO₂ + 2CoF₃ = UO₂F₂ + 2CoF₂.

[Bill321]

Thank you all for your responses.
I was trying to set up a laser fluorination system. Want to get Oxygen out of UO2. Not sure if it will form UF6+O2+Co.
Any input would greatly be appreciated.

[Bill321]

Hi Enthalpy,
The reaction will be in a vacuum chamber, heated with CO2 laser.

[Arkcon]

Hmmm  ... tricky.  OK, I'm first wondering what sort of vapor density you can get from UO₂.  Like Enthalpy: said, that's practically a refractory material.  DOes a CO2 laser really impart sufficient thermal energy to vaporize anything?  If so, how are the products stable in vapor phase?  And freely reduced cobalt metal -- that really doesn't sound plausible to me.  But we should keep this thread alive so experts can weigh in.

[Bill321]

Yes, Arkon,
These are the questions I want to know the answers before I can actually start the project.
Following gippgig's perspective, it would work if the following reaction happens:
UO2 + 2CoF3 = UF4 + 2CoF2 + O2.

yes, CO2 laser will used as laser ablation.

[Enthalpy]

No worries with CO₂ lasers. Just pick the proper model and concentrating optics. They're used to cut steel sheets and plates.