In {HEAD ~ the Solvay process mined calcium carbonate} is heated in {TAIL ~ a kiln} at 12000 C. for conversion into lime stone CaO and CO2 
is heated in
In { HEAD ~ the Solvay process mined calcium carbonate } is heated in { TAIL ~ a kiln } at 12000 C. for conversion into lime stone CaO and CO2
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH