NICKEL HYDROXIDE PRODUCT AND PREPARATION METHOD THEREOF

摘要

Provided are a nickel hydroxide product and its preparing method. The method includes: (a) enabling a first nickel hydroxide pulp to be in contact with sodium hydroxide, so as to obtain an alkalized pulp; (b) enabling the alkalized pulp to be in contact with a nickel sulfate solution, so as to obtain a nickel-precipitated pulp; (c) returning at least one part of the nickel-precipitated pulp to the step (a) as the first nickel hydroxide pulp, and repeating the steps (a) and (b) at least once; and (d) separating the nickel hydroxide from the rest part of the nickel-precipitated pulp.