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Overview of Ionic Rare Earth Ore Extraction The grade of ion-adsorbed rare earth is very low, generally 0.03-0.1%, and it is impossible to enrich rare earth using conventional ore dressing methods. Currently, ammonium sulfate leaching is mainly used for recovery…

Salar brine is rich in a variety of valuable minerals, among which boron is an important resource. At present, the methods for extracting boron from salar brine include precipitation, adsorption, ion exchange and extraction. Each method has its own characteristics…

In recent years, lithium-ion batteries have been widely used due to their advantages such as high voltage, long cycle life and good safety performance. As a result, the number of waste lithium-ion batteries has increased dramatically. The positive electrode materials…

Pickling wastewater is the wastewater produced when sulfuric acid, nitric acid, hydrochloric acid, hydrofluoric acid and phosphoric acid are used for pickling to remove metal surface oxides. It generally comes from industries such as spraying, electroplating, steel, machinery manufacturing, and…

The content of metal elements in the waste liquid of copper etching liquid is very high. If it can be recycled, it will also expand the interests of the enterprise. Therefore, many companies want to do the project to extract…

Sodium sulfate wastewater treatment is a type of chemical high-concentration organic wastewater that many companies will produce during the production and processing process. The organic content in this type of wastewater varies. It is necessary to extract the organic components…