Landfillable composition from iron chloride waste treatment in molten salt

摘要

A solid, water impervious landfillable composition of a process for treating iron chloride wastes such as those obtained when chlorinating titanium ore is disclosed. The process involves reacting the iron chlorides with limestone in molten CaCl2.xH2O, where x equals 3-6. The composition comprises CaCl2.xH2O where x is from 3-6 and FeOY where Y is from 1.0-1.5 and the weight ratio of CaCl2.xH2O (calculated as CaCl2.2H2O)/FeOY is from 1/9-4/1.