The lead ore concentrate from the flotation tanks now contains about 50% lead and ca 0.1% of silver, a relatively small but valuable amount. (b) Smelting Smelting is usually a two-stage process as described here, although single-stage methods with lower energy use and emissions are also used.
At the end of the flotation process, the lead has been separated from the rock, and other minerals too, such as zinc and copper, have been separated out. Filtering 4 After the ore is concentrated in the flotation cells, it flows to a filter, which removes up to 90% of the water.
This cell is constructed with a Lead/Lead Sulfate anode and a Silver/Silver Sulfate cathode, both in a solution of Sodium Sulfate. The two solutions are separated by an anion exchange membrane, which allows negatively - charged ions to go through it, but positively - charged ions cannot.
A good example that used a variety of modern techniques to measure the solubility of silver chromate was published by A.L. Jones et al in the Australian J. of Chemistry, 1971 24 2005-12. Generations of chemistry students have amused themselves by comparing the disparate K s values to be found in various textbooks and tables.
A process routinely employed in the fire assaying of gold ores is the addition of silver prior to fusion of the ore in order to ensure that the silver content of the final bead is high enough to dissolve. This is called inquartation, and the separating of silver and gold by leaching with nitric acid is referred to as parting.
Best Answer: Silver is separated from copper by a metallurgical process called electrorefining. Melt the silver-copper metal into an anode and electrolize it with a stainless steel cathode with a DC current source 40 to 50 Amps per square foot (about 2.5 volts) in a solution of copper–silver–nitric acid.
This assay process was called cupellation, which separated the gold and silver from the usual adulterants. Unfortunately, it did not part the gold from the silver, which required other means. Unfortunately, it did not part the gold from the silver, which required other means.