For zinc electrolysis using a sulfuric acid system, the nickel content in the system is relatively high; what methods can be used to effectively remove it?
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For zinc electrolysis using a sulfuric acid system, the nickel content in the system is relatively high; what methods can be used to effectively remove it?
During the purification stage, cobalt and nickel are removed. . . . If the level of minerals is high, replace them; if it’s high in the electrolyte, heating it will lower the level, hehe
In addition to the traditional use of zinc powder for nickel removal, sulfides can be employed to remove heavy metals; however, care must be taken as the formation of cadmium sulfide and zinc can affect filtration performance!
There are mainly two suggestions: 1. If the nickel content is very high and difficult to remove through purification, it is necessary to ensure a proper combination of ingredients at the stage of raw material preparation. 2. During the purification stage, enhance the deep purification using triphasic antimony salts.
Reply to 4# Ding Kejian: Trying dimethoxime for a short period, but no effect at all. I don’t know what’s going on. Are there any other good ways?
Reply to 1# meijie0812: Could you tell me to what extent it’s high?
Reply to 7# hnjycgyl001: 2g/L? There’s already so much nickel after leaching. . . . Is there any most economical way?
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