2003年,贱金属冶炼副产硫酸预计为46.8 Mt,其中大多是铜冶炼副产。到2010年,冶炼副产硫酸将达到60 Mt。最近几年,酸浸法制镍和湿法炼铜硫酸消耗量有所增加。根据今后15年镍的供需情况预测,到2020年酸浸法制镍硫酸消耗量将增加23 Mt,另外湿法炼铜硫酸消耗量也将增加4.2 Mt。 In 2003, sulfuric acid by-product of base metal smelting is estimated to be 46.8 Mt, most of which is by-product of copper smelting. By 2010, smelting by-product sulfuric acid will reach 60 Mt. In recent years, acid leaching nickel and wet-process sulfuric acid consumption has increased. According to the forecast of supply and demand of nickel in the next 15 years, the consumption of nickel sulfate by acid leaching will increase by 23 Mt by 2020, and the consumption of wet sulfuric acid by sulfuric acid consumption will also increase by 4.2 Mt.