Information Center

How does Current Density Effects in Electrowinning Process? In addition to the electrolyte composition, the bath temperature, pH and current density are the main operating parameters in electrowinning and electrorefining of nickel that affect the stress in a nickel deposit in different ways. In the electrowinning process, the current density is an important factor that determines the metal production rate and has a strong influence on the quality of the deposit. The current density typically used for nickel electrowinning from s

Sulfate and Chloride Electrolytes for Nickel Electrowinning Electrowinning of nickel is usually carried out from three types of electrolytes: typically sulfate, chloride, and sulfate-chloride mixtures, with the operating parameters and the cell configuration closely related to the nature of the electrolyte used. Typically, for sulfate electrolytes, electrowinning is conducted in a range of pH 2 to 4, as lower pH values give excessive hydrogen evolution at the cathode surface, while higher pH values lead generally to the for

Nickel Electrowinning and Impurities Influence Electrowinning from aqueous solutions using insoluble anodes is a well-established process for metals like zinc, copper, nickel, cobalt, cadmium, manganese and others. The metal is electrodeposited at the cathode from a solution of one of its salts, most commonly a sulfate. Water is decomposed at the anode, which is usually made of lead or a lead alloy; oxygen is evolved and acid (hydrogen ions) is formed. Successful electrowinning and electrorefining processes for the production of

What Kind of Lead Anode is Good for Zinc Electrowinning? In electrowinning applications, lead and its alloys have been the preferred anode material for a long time. The anode material used in the electrowinning process should meet three requirements: electrical conductivity, electrocatalysis, stability, and certain resistance. Good electrical conductivity is essential for energy efficiency. Good electrocatalytic properties are essential to improve product yield. Long-term stability is also an important property because electrode we