
How to produce ammonium paratungstate using tungsten-contained soft waste material? The researchers proposed a method for producing ammonium paratungstate using tungsten-contained soft waste material. The method has the characteristics of short process flow, low investment in equipment, high productivity and yield, low cost of recycling, and no waste liquid that pollutes the environment. More details, please visit: http://ammonium-paratungstate.com/index.html A Method for Producing Ammonium Paratungstate Using Tungsten-contained Soft Waste Material Step One: Mix tungsten-contained soft waste material with dilute ammonia water,…