The method 1 wherein said solid particulate material is selected from the group of sand, {HEAD ~ carbon}, graphite, silicon carbide, magnesite, and {TAIL ~ dolomite} 
The method 1 wherein said solid particulate material is selected from the group of sand , { HEAD ~ carbon } , graphite , silicon carbide , magnesite , and { TAIL ~ dolomite }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL