Process for pelletizing and neutralizing solid mixtures of metal chlorides
AssigneeNL Industries, Inc.
InventorsDonald G. Cole, Achim Hartmann, Achim M. Kulling, Hermann B. Trub
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Abstract
A process is provided wherein solid mixtures of metal chlorides of, for example, ferric chloride, ferrous chloride, vanadium chloride and chromium chloride are (1) mixed with an alkaline material such as, for example, calcium oxide, calcium hydroxide and calcium carbonate, followed (2) by adding water to the resulting mixture to granulate said mixture whereby the metal chlorides are rendered substantially insoluble in water.
Claims5
A process for treating a solid mixture containing chlorides of iron, vanadium and chromium, obtained in the chlorination of titaniferous raw materials which comprises forming a granulate by mixing in a dry state said solid mixture with an alkaline reacting substance selected from the group consisting of calcium oxide, calcium hydroxide, calcium carbonate, and mixtures thereof, whereby the chlorides of vanadium and chromium form compounds substantially insoluble in water, and thereafter granulating the resulting mixture by adding water at a quantity of 35 to 70 percent by weight, and forming pellets thereof.
Dependencies are inferred from the claim text.