Method for producing nickel-cobalt metal powder
A technology of metal powder and nickel-cobalt alloy, which is applied in the field of preparation of nickel-cobalt metal powder, can solve the problems of long induction period, affecting product performance, reducing product purity, etc., and achieves easy control of the production process, controllable size and composition, and preparation The effect of a wide range of conditions
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Embodiment 1
[0027] Nanometer nickel powder is used as crystal seed, and ammonia aqueous solution of nickel sulfate is used as raw material to prepare ultrafine nickel powder. Weigh 30kg of nickel sulfate and 15.3kg of ammonium sulfate, add them into the stirring tank, pour 60L of deionized water, heat to 60°C, stir and dissolve, measure 18.45L of ammonia water with a concentration of 25%, add it into the stirring tank, and mix with the tank. Mix the aqueous solution of nickel sulfate and ammonium sulfate, and then dilute the solution with deionized water to a total volume of 100L, and prepare a mixed solution containing about 63g / L of nickel, the ratio of ammonia to nickel is 2.3, and the concentration of ammonium sulfate is 150g / L; Add 10 g of anthraquinone and 1.5 g of bone glue to the mixed solution, add an aqueous solution containing 2.1 kg of nano-nickel powder with a particle size of about 30 to 50 nm, and then transfer the mixed solution containing anthraquinone, bone glue and nano-...
Embodiment 2
[0030] Nano cobalt powder is used as crystal seed, and ammonia aqueous solution of cobalt sulfate is used as raw material to prepare ultrafine cobalt powder. Weigh 31.3 kg of cobalt sulfate and 12.2 kg of ammonium sulfate, put them in a stirring tank, pour 70 L of deionized water, heat to 40 ° C, stir and dissolve, measure 27.8 L of ammonia water with a concentration of 25%, add it into the stirring tank, and mix with the tank. Mix the cobalt sulfate and the aqueous solution of ammonium sulfate inside, and then dilute the solution with deionized water to a total volume of 120L, and prepare a mixed solution containing about 52.1g / L of cobalt, 3.5 of ammonia-cobalt ratio, and 99.6g / L of ammonium sulfate; Add 18 g of anthraquinone and 2 g of bone glue to the mixed solution, add 2.3 kg of nano-cobalt powder with a particle size of about 53 to 85 nm, and then transfer the mixed solution containing anthraquinone, bone glue and nano-cobalt powder into an autoclave with a volume of 300...
Embodiment 3
[0033] Nano-cobalt powder is used as crystal seed, and the ammoniacal aqueous solution of nickel sulfate is used as raw material to prepare nano-nickel-cobalt alloy powder. Weigh 30kg of nickel sulfate and 27.9kg of ammonium sulfate, add them into a stirring tank, pour 80 L of deionized water, heat to 50 ° C, stir and dissolve, measure 25.7 L of ammonia water with a concentration of 25%, add it into the stirring tank, and mix with the tank. Mix the ammoniacal aqueous solution of nickel sulfate, and then dilute the solution with deionized water to a total volume of 130L, and prepare a mixed solution containing about 48.5g / L of nickel, 3.2 of ammonia-nickel ratio, and 210.3g / L of ammonium sulfate; in the mixed solution Add 14.3g of anthraquinone, 1.8g of bone glue, add 5.8kg of nano-cobalt powder with a particle size of about 15-45nm, and then transfer the mixed solution containing anthraquinone, bone glue and nano-cobalt powder into a 300L autoclave, and seal it. Autoclave.
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