| 摘要 |
PROBLEM TO BE SOLVED: To mass-produce nickel powder with fine and uniform grain diameters at a low cost. SOLUTION: In the method for producing nickel powder where nickel hydroxide powder containing, by mass, 0.002-1% alkaline-earth metal is roasted, so as to be nickel oxide powder, and the obtained nickel oxide powder is reduced, air is made to flow by 0.02 to 0.4 L/min with respect to 1 g of the nickel hydroxide, further, it is roasted at 250 to 500°C, so as to convert the nickel hydroxide powder into nickel oxide powder, and further, hydrogen is made to flow by 0.01 to 0.2 L/min with respect to 1g of the obtained nickel oxide powder, and further, it is reduced at 300 to 500°C, so as to be nickel powder. COPYRIGHT: (C)2009,JPO&INPIT
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