Nickel hydroxide product and preparation method thereof

• Main Authors: Zhang, Wen, Liu, Guo, Lu, Yeda, Wang, Kuiting, Peng, Jianhua, Sun, Ninglei, Liu, Cheng, Liu, Jinshan
• Format: Patent
• Language: English
• Published: 03.11.2016
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

Disclosed are a nickel hydroxide and preparation method thereof, the method comprising: (a) contacting first nickel hydroxide slurry and sodium hydroxide to obtain alkaline slurry; (b) contacting the alkaline slurry and a solution containing nickel sulfate to obtain immersion nickel slurry; (c) returning at least a part of the immersion nickel slurry to step (a) as the first nickel hydroxide slurry so as to repeat steps (a) and (b) at least once; and (d) separating nickel hydroxide from the remainder of the immersion nickel slurry.