Crude Tin Refining Tin Metalcess
The refining of crude tin is to remove these impurities and recover valuable metals like indium, bismuth and copper, which helps to reduce production cost to a large extent. The common purities in crude tin incudes iron, arsenic, antimony, copper, lead, bismuth and sulfur. Crude tin is treated by either fire refining or electro refining. Crude tin is obtained by electrical arc furnace smelting.