{HEAD ~ P2 O5 values} are soluble in {TAIL ~ water} producing a weak phosphoric acid solution initially which has value as a potential recycle stream in commercial operations 
{ HEAD ~ P2 O5 values } are soluble in { TAIL ~ water } producing a weak phosphoric acid solution initially which has value as a potential recycle stream in commercial operations
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH