Question

which stone is used in making scrubber

Answer 1

I think scrubber stone is used for making scrubber

Answer 2

Scrubber Stone. Yager Materials is a provider of the high-calcium limestone that is used for flue-gas desulfurization. Commonly called scrubber stone, this type of limestone is ideal as an ingredient in the process to remove sulfur-dioxide from emissions generated by burning coal.