Research and Development
Development of highly efficient tungsten recycling technology
By removing impurities at the same time as efficiently converting Na2WO4 to (NH4)2WO4 by ion exchange, the process can be shortened and the amount of chemicals to use can be reduced significantly. As NH3 is recovered and reused, the environmental impact can be reduced.
Low energy consumption, small environmental impact and high efficiency contribute to low cost processing even in a small amount.