| 摘要 |
<p>PURPOSE: A manufacturing method of nickel sulfate using nickel scrap is provided to simply manufacture nickel sulfate from nickel scrap. CONSTITUTION: A manufacturing method of nickel sulfate using nickel scrap comprises the following steps: forming nickel oxide(NiO) by heat treating nickel scrap powder for 5-10 hours; dissolving the nickel oxide in an acid solution at 80-90 deg. Celsius for 5-10 hours; manufacturing a nickel ion acid solution by removing insoluble impurities by filtering the nickel oxide acid solution; cementing and filtering by injecting zinc or aluminum into the nickel ion acid solution; forming and filtering an nickel-amine complex ion(Ni(NH3)62+) by adding an ammonia or amine compound to the cemented nickel ion acid solution; forming nickel hydroxide(Ni(OH)2) by adding caustic soda(NaOH) to the reacting solution in which the nickel-amine complex ion is formed; and forming nickel sulfate hydrate by adding watery sulfuric acid to a reacting solution in which the nickel hydroxide is formed. [Reference numerals] (a) After heat treating; (b) Nickel scrap raw material; (CC) Intensity(a.u); (DD) 2θ(degree)</p> |
