Because the amphoteric polyacrylamide molecule contains cationic group and anion group, it has the general cationic flocculant use characteristics, has shown more excellent performance. These flocculants can be used over a wide range of PH values, have higher filter water, lower cake moisture content, and can also be used for strong acid leaching of ores or recovery of valuable metals from acidic catalysts containing metals. The amphoteric type is not a mixture of anionic an...