Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal
Patent
1987-10-13
1989-06-20
Stoll, Robert L.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Iron group metal
423139, 423140, 423592, 75 05AN, 75 05BA, 75119, 75101R, 75108, 75DIG2, 75DIG3, C01G 5100, C22B 2300
Patent
active
048407755
ABSTRACT:
A method is disclosed for purifying cobaltic hydroxide of sodium and chloride which involves firing the cobaltic hydroxide at a temperature of from about 180.degree. C. to about 850.degree. C. to remove essentially all of the water and to release sodium from the crystal matrix of the cobaltic hydroxide, slurrying the dried cobaltic hydroxide in a deionized water solution which contains a sufficient amount of an ionic compound to prevent the peptization of the cobaltic hydroxide, to solublize essentially all of the chloride and a greater portion of the sodium than would otherwise be solubilized without the firing step, and removing the purified cobaltic hydroxide from the resulting liquor.
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Husted Eric F.
Ladd Judith A.
Castle Donald R.
GTE Products Corporation
Harvey Paige C.
Quatrini L. Rita
Stoll Robert L.
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