FIELD: washing-off impurities from precipitated COBALT hydroxide. SUBSTANCE: method includes supply of aqueous solution of acid at pH 2.0-3.5 by portions. Washing may be carried out with hot solution. EFFECT: deeper washing of COBALT hydroxide from impurities with simultaneous simplicity of method and its economic efficiency. 2 cl, 5 tbl
Authors
Dates
1998-04-27—Published
1996-12-25—Filed