The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 20, 1989
Filed:
Oct. 13, 1987
Eric F Husted, Ulster, PA (US);
Judith A Ladd, Sayre, PA (US);
GTE Products Corporation, Stamford, CT (US);
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.