A kind of method for preparing refined nickel sulfate from copper electrolytic solution after decoppering
A technology of decopper solution and copper electrolyte, which is applied in the field of hydrometallurgy, can solve the problems of high operating costs and large investment, and achieve the effects of reducing investment costs, good effect, and simple and direct process
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[0033] A method for preparing refined nickel sulfate from the copper electrolyte solution after decopper removal of the present invention, such as figure 1 shown, including the following steps:
[0034] The composition of the copper electrolyte after copper removal in a copper smelter is shown in Table 1.
[0035] Table 1 Composition of copper electrolyte after copper removal
[0036]
[0037] (1) Salt acid separation: After the copper electrolyte is decoppered and filtered through a 1μm filter membrane, the acid and metal ions are separated by a resin column equipped with 2.3L strong basic anion exchange resin (acid adsorption resin), so that The acid is adsorbed to obtain the deacidified nickel sulfate stock solution, and then the acid adsorption resin is washed with water, so that the acid is eluted, and the recovered acid solution is obtained, which is used to return to the copper system for acid supplementation.
[0038] Among them, the recovered acid solution contai...
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