RHI, a world market leader in refractories, has built one of the largest fusion plants for magnesia raw materials for more than 75 million € in Norway. In this fusion plant, magnesia obtained from sea water is converted to fused magnesia, a highgrade refractory raw material, at temperatures about 2 800 degrees. With a capacity of approximately 85 000 t per year, the plant is one of the largest worldwide.…