Recarbonation of spent oil shale
Recovery of calcium fluoride from phosphate operation waste wate
Recovery of common salt and marine chemicals from brine
Recovery of fluorides from gypsum
Recovery of fluorine from pond water of wet process phosphoric a
Recovery of magnesium chloride from brines
Recovery of magnesium from magnesium silicates
Recovery of Mg.sup.++ from brines
Recovery of strontium from brine that contains strontium and cal
Removal and recovery of magnesium, strontium and barium from bri
Removal of boron from MgCl.sub.2 brines
Removal of boron from MgCl.sub.2 brines
Removal of boron from MgCl.sub.2 brines
Removal of Ca.sup.++ from MgCl.sub.2
Removal of low level hardness impurities from brine feed to chlo
Removal of Mg.sup.++ and Ca.sup.++ ions from NaCl brine
Removal of uranium contamination from magnesium fluoride slag