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**Sodium borate (NaBH4 reduction for purification and removal of Co, Ni

2012-03-27View Original

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The wastewater contains about 5% zinc and about 0.12% nickel; sodium borohydride (NaBH4) is used for reduction and purification in order to remove nickel. I would like to ask experts how exactly this should be done
Reply #22012-03-27
Adjust the pH of the wastewater to 11–12, then add sodium borate. :lol
Reply #32012-03-29
I am using the ammonia-sulfuric acid AN system. Adding **sodium borate at PH=11-12 has no significant effect. Please give me some advice!
Reply #42012-04-02
Zinc powder replacement can be considered directly. What are the pH value, as well as the concentrations of ammonia and sulfuric acid in your original solution?
Reply #52012-04-05
Zinc powder replacement is indeed feasible and can be implemented on a small scale, but the cost is high. So I want to try other methods.
Reply #62012-04-05
**What is the price of sodium borate? Let me introduce it. Can it be used in industrial production?

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