Replying to Avatar Low Information Voter

Trapping the SO2 and SO3 with limestone is more likely to create CaSO3 and CaSO4 than CaO. But there's a market for that as gypsum.

What a beautiful scam! Plenary indulgences live on!
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Byzantine 2y ago

a considerable amount of CaO in the core area still remained unreacted for coarse particles

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539107/

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Low Information Voter 2y ago

Good article.

Getting that CaO out of the particles would be a neat trick!

You could calcine the CaSO4, again, to drive off SO2/SO3 and make sulfuric acid with it, but the economics would be unfavourable even with the government paying for the energy.

Forwarded it to a client, he'll love it.