Because of the separation of this raw sand fraction, {TAIL ~ the subsequent process steps} are relieved with {HEAD ~ respect} to the separated raw sand fraction 
Because of the separation of this raw sand fraction , { TAIL ~ the subsequent process steps } are relieved with { HEAD ~ respect } to the separated raw sand fraction
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH