Calcite = CalciumCarbonate = CaCO3 and is used in such a process.
How? Like I said, from what I have heard about the process it simply involves scattering the dust to maximize the surface area in contact with oxygen. How does Calcium Carbonate help the combustion? Simply dropping the dust into liquid calcium carbonate would cut it off from its supply of oxygen and so it couldn't burn.
And I think the Bathing Pot does not let you automate its Output. For that you need to actually use the Bath (Machine).
I'm not actually trying to bathe anything; just using the bathing pot as something that you can use a faucet to pour molten contents of the crucible into where it can then sit without cooling off until you remove it.